Pub Date : 2024-12-31Epub Date: 2024-08-07DOI: 10.2144/fsoa-2023-0222
Bahaeddine Lahbacha, Abir Chaabane, Wafa Garbouj, Roua Mankai, Amina Bani, Amal Khsiba, Raja Amri, Salwa Nechi, Emna Chelbi
A 62-year-old woman presented with a chronic fever and fatigue. Biological investigations showed leukocytosis and elevation of acute phase markers. Liver blood tests showed deterioration with both cholestatic and hepatocellular patterns (there were, respectively, elevations in serum alkaline phosphatase levels as well as in serum alanine and aspartate aminotransferases). Viral serologies were negative. Mycobacterial infection and endocarditis were excluded. Results from blood cultures were negative. Autoantibody tests including ANCA (anti-neutrophil cytoplasmic antibody), anti-nuclear, anti-smooth muscle and anti-mitochondria were all negative. A liver biopsy revealed epithelioid granulomatous necrotizing vasculitis. Subsequently, immunological testing was repeated revealing MPO-ANCA (myeloperoxidase-ANCA). A diagnosis of ANCA-associated vasculitis with liver involvement was then made. The patient was started on steroids and her clinical state gradually improved.
一名 62 岁的妇女因长期发烧和疲劳而就诊。生物检查显示白细胞增多,急性期标志物升高。肝脏血液检查显示病情恶化,有胆汁淤积性和肝细胞性两种模式(血清碱性磷酸酶水平以及血清丙氨酸和天冬氨酸转氨酶分别升高)。病毒血清学检测呈阴性。排除了分枝杆菌感染和心内膜炎。血液培养结果为阴性。包括抗中性粒细胞胞浆抗体(ANCA)、抗核抗体、抗平滑肌抗体和抗线粒体抗体在内的自身抗体检测结果均为阴性。肝脏活检显示患者患有上皮样肉芽肿坏死性血管炎。随后,再次进行免疫学检测,发现 MPO-ANCA(髓过氧化物酶-ANCA)。诊断结果为 ANCA 相关性血管炎并累及肝脏。患者开始服用类固醇,临床症状逐渐好转。
{"title":"Liver biopsy revealing anti-neutrophil cytoplasmic antibody-associated vasculitis: a tale for a challenging diagnosis.","authors":"Bahaeddine Lahbacha, Abir Chaabane, Wafa Garbouj, Roua Mankai, Amina Bani, Amal Khsiba, Raja Amri, Salwa Nechi, Emna Chelbi","doi":"10.2144/fsoa-2023-0222","DOIUrl":"10.2144/fsoa-2023-0222","url":null,"abstract":"<p><p>A 62-year-old woman presented with a chronic fever and fatigue. Biological investigations showed leukocytosis and elevation of acute phase markers. Liver blood tests showed deterioration with both cholestatic and hepatocellular patterns (there were, respectively, elevations in serum alkaline phosphatase levels as well as in serum alanine and aspartate aminotransferases). Viral serologies were negative. Mycobacterial infection and endocarditis were excluded. Results from blood cultures were negative. Autoantibody tests including ANCA (anti-neutrophil cytoplasmic antibody), anti-nuclear, anti-smooth muscle and anti-mitochondria were all negative. A liver biopsy revealed epithelioid granulomatous necrotizing vasculitis. Subsequently, immunological testing was repeated revealing MPO-ANCA (myeloperoxidase-ANCA). A diagnosis of ANCA-associated vasculitis with liver involvement was then made. The patient was started on steroids and her clinical state gradually improved.</p>","PeriodicalId":12568,"journal":{"name":"Future Science OA","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11318729/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141897250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-01-05DOI: 10.1080/15592324.2023.2298054
Ixchel Campos-Avelar, Amelia C Montoya-Martínez, Fannie I Parra-Cota, Sergio de Los Santos-Villalobos
The use of plant-associated microorganisms is increasingly being investigated as a key tool for mitigating the impact of biotic and abiotic threats to crops and facilitating migration to sustainable agricultural practices. The microbiome is responsible for several functions in agroecosystems, such as the transformation of organic matter, nutrient cycling, and plant/pathogen growth regulation. As climate change and global warming are altering the dynamics of plant-microbial interactions in the ecosystem, it has become essential to perform comprehensive studies to decipher current and future microbial interactions, as their useful symbiotic mechanisms could be better exploited to achieve sustainable agriculture. This will allow for the development of effective microbial inoculants that facilitate nutrient supply for the plant at its minimal energy expense, thus increasing its resilience to biotic and abiotic stresses. This article collection aims to compile state-of-the-art research focused on the elucidation and optimization of symbiotic relationships between crops and their associated microbes. The information presented here will contribute to the development of next-generation microbial inoculants for achieving a more sustainable agriculture.
{"title":"Editorial: plant-microbial symbiosis toward sustainable food security.","authors":"Ixchel Campos-Avelar, Amelia C Montoya-Martínez, Fannie I Parra-Cota, Sergio de Los Santos-Villalobos","doi":"10.1080/15592324.2023.2298054","DOIUrl":"10.1080/15592324.2023.2298054","url":null,"abstract":"<p><p>The use of plant-associated microorganisms is increasingly being investigated as a key tool for mitigating the impact of biotic and abiotic threats to crops and facilitating migration to sustainable agricultural practices. The microbiome is responsible for several functions in agroecosystems, such as the transformation of organic matter, nutrient cycling, and plant/pathogen growth regulation. As climate change and global warming are altering the dynamics of plant-microbial interactions in the ecosystem, it has become essential to perform comprehensive studies to decipher current and future microbial interactions, as their useful symbiotic mechanisms could be better exploited to achieve sustainable agriculture. This will allow for the development of effective microbial inoculants that facilitate nutrient supply for the plant at its minimal energy expense, thus increasing its resilience to biotic and abiotic stresses. This article collection aims to compile state-of-the-art research focused on the elucidation and optimization of symbiotic relationships between crops and their associated microbes. The information presented here will contribute to the development of next-generation microbial inoculants for achieving a more sustainable agriculture.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10773630/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139107022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-07-23DOI: 10.1080/20450907.2024.2375960
Jackson Griffith-Linsley, William Robert Bell, Aaron Cohen-Gadol, Diane Donegan, Angela Richardson, Michael Robertson, Kevin Shiue, Kathryn Nevel
Aim: Atypical teratoid rhabdoid tumor (ATRT) is a rare and highly aggressive primary CNS neoplasm, predominantly observed in children. The use of autologous stem cell transplantation (ASCT) in pediatric ATRT has shown promise; however, its utility in adult ATRT remains unclear. Patients & methods: This study presents the case of an adult patient with ATRT who is in remission after ASCT and reviews the literature on ASCT in adults with ATRT. Four cases of ATRT in adults who underwent ASCT were identified, with pertinent data summarized. Results: All five patients survived longer than the historical average survival rate, four of whom had no clinical or radiographic evidence of disease at the final follow-up. Conclusion: Based on limited data, there may be a role for ASCT in the treatment of adults with ATRT.
{"title":"Autologous stem cell transplantation in adults with atypical teratoid rhabdoid tumor: a case report and review.","authors":"Jackson Griffith-Linsley, William Robert Bell, Aaron Cohen-Gadol, Diane Donegan, Angela Richardson, Michael Robertson, Kevin Shiue, Kathryn Nevel","doi":"10.1080/20450907.2024.2375960","DOIUrl":"10.1080/20450907.2024.2375960","url":null,"abstract":"<p><p><b>Aim:</b> Atypical teratoid rhabdoid tumor (ATRT) is a rare and highly aggressive primary CNS neoplasm, predominantly observed in children. The use of autologous stem cell transplantation (ASCT) in pediatric ATRT has shown promise; however, its utility in adult ATRT remains unclear. <b>Patients & methods:</b> This study presents the case of an adult patient with ATRT who is in remission after ASCT and reviews the literature on ASCT in adults with ATRT. Four cases of ATRT in adults who underwent ASCT were identified, with pertinent data summarized. <b>Results:</b> All five patients survived longer than the historical average survival rate, four of whom had no clinical or radiographic evidence of disease at the final follow-up. <b>Conclusion:</b> Based on limited data, there may be a role for ASCT in the treatment of adults with ATRT.</p>","PeriodicalId":10469,"journal":{"name":"CNS Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11285279/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141747640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-07-27DOI: 10.1080/15592324.2024.2383823
Chengtao Pan, Zhimin Chen, Mao Zhang, Xiangsheng Chen, Guy Smagghe, Mingyu Fan, Zhimin Chang, Lili Zhao, Jiankun Long
Sophora davidii is a cross-pollinated plant with important ecological protection and medicinal value in China, but its seed yield is low due to backward and nonstandard production technology. Therefore, we divide the flowering period of Sophora davidii into initial, full and final flowering period, measuring the floral morphology, pollen viability, stigma receptivity, nectar volume and nectar concentration, foraging behavior of pollinators, fertilization physiology, seed yield and quality through field observation and indoor testing to explore whether the flowering period affects the floral traits, pollinator behavior and seed production of plants. Our results revealed that the nectar volume, nectar concentration, pollen viability and stigma receptivity at full flowering period were the highest. The single visit time and visit time per flower of Chinese honey bees were the longest in the full flowering period, while the number of transfer, visit frequency and number of touching stigma were the least. The visiting number of the bees was the most and the most active in the full flowering period. The bees pollination not only improved the pollen amount, germination rate, pollen tube length and the ovule number of S. davidii, but also their effect was the most obvious in full flowering period. The principal component analysis showed that pollination by Chinese honey bees during the whole flowering period of S. davidii was the best way to produce seeds. We can conclude that flowering period affects flower traits, foraging behavior of pollinators, seed yield and quality of S. davidii.
{"title":"Effects of flowering period on floral traits, pollinator behavior and seed production of David's mountain laurel (<i>Sophora davidii</i>).","authors":"Chengtao Pan, Zhimin Chen, Mao Zhang, Xiangsheng Chen, Guy Smagghe, Mingyu Fan, Zhimin Chang, Lili Zhao, Jiankun Long","doi":"10.1080/15592324.2024.2383823","DOIUrl":"10.1080/15592324.2024.2383823","url":null,"abstract":"<p><p><i>Sophora davidii</i> is a cross-pollinated plant with important ecological protection and medicinal value in China, but its seed yield is low due to backward and nonstandard production technology. Therefore, we divide the flowering period of <i>Sophora davidii</i> into initial, full and final flowering period, measuring the floral morphology, pollen viability, stigma receptivity, nectar volume and nectar concentration, foraging behavior of pollinators, fertilization physiology, seed yield and quality through field observation and indoor testing to explore whether the flowering period affects the floral traits, pollinator behavior and seed production of plants. Our results revealed that the nectar volume, nectar concentration, pollen viability and stigma receptivity at full flowering period were the highest. The single visit time and visit time per flower of Chinese honey bees were the longest in the full flowering period, while the number of transfer, visit frequency and number of touching stigma were the least. The visiting number of the bees was the most and the most active in the full flowering period. The bees pollination not only improved the pollen amount, germination rate, pollen tube length and the ovule number of <i>S. davidii</i>, but also their effect was the most obvious in full flowering period. The principal component analysis showed that pollination by Chinese honey bees during the whole flowering period of <i>S. davidii</i> was the best way to produce seeds. We can conclude that flowering period affects flower traits, foraging behavior of pollinators, seed yield and quality of <i>S. davidii</i>.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11285235/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141790720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-06-14DOI: 10.1080/23288604.2024.2352885
Elina Dale, Julia Novak, Denys Dmytriiev, Olga Demeshko, Jarno Habicht
This commentary examines the resilience of primary health care in Ukraine amidst the ongoing war, drawing a few reflections relevant for other fragile and conflict-affected situations. Using personal observations and various published and unpublished reports, this article outlines five reflections on the strengths, challenges, and necessary adaptations of Primary Health Care (PHC) in Ukraine. It underscores the concerted efforts of the government to maintain public financing of PHC, thereby averting system collapse. The research also highlights the role of strategic adaptations during the COVID-19 pandemic in fostering resilience during the war, including the widespread use of digital communication and skills training. The commentary emphasizes the role of managerial and financial autonomy in facilitating quick and efficient organizational response to crisis. It also recognizes emerging challenges, including better access to PHC services among the internally displaced persons, shifting patient profiles and service needs, and challenges related to reliance on local government financing. Finally, the authors advocate for a coordinated approach in humanitarian response, recovery efforts, and development programs to ensure the sustainability and effectiveness of PHC in Ukraine.
{"title":"Resilience of Primary Health Care in Ukraine: Challenges of the Pandemic and War.","authors":"Elina Dale, Julia Novak, Denys Dmytriiev, Olga Demeshko, Jarno Habicht","doi":"10.1080/23288604.2024.2352885","DOIUrl":"10.1080/23288604.2024.2352885","url":null,"abstract":"<p><p>This commentary examines the resilience of primary health care in Ukraine amidst the ongoing war, drawing a few reflections relevant for other fragile and conflict-affected situations. Using personal observations and various published and unpublished reports, this article outlines five reflections on the strengths, challenges, and necessary adaptations of Primary Health Care (PHC) in Ukraine. It underscores the concerted efforts of the government to maintain public financing of PHC, thereby averting system collapse. The research also highlights the role of strategic adaptations during the COVID-19 pandemic in fostering resilience during the war, including the widespread use of digital communication and skills training. The commentary emphasizes the role of managerial and financial autonomy in facilitating quick and efficient organizational response to crisis. It also recognizes emerging challenges, including better access to PHC services among the internally displaced persons, shifting patient profiles and service needs, and challenges related to reliance on local government financing. Finally, the authors advocate for a coordinated approach in humanitarian response, recovery efforts, and development programs to ensure the sustainability and effectiveness of PHC in Ukraine.</p>","PeriodicalId":73218,"journal":{"name":"Health systems and reform","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141322051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-09-12DOI: 10.1080/20450907.2024.2395804
Nolan Winslow, Jacqueline Boyle, William Miller, Yanzhi Wang, Francois Geoffroy, Andrew J Tsung
Aim: Brain metastases (BM) are a common site of disease progression and treatment failure in non-small-cell lung cancer (NSCLC) and can be identified in up to 30-50% of patients. Although they are common, there is no standardized screening protocol for development of BM in NSCLC. Multiple clinical variables predict increased BM occurrence, and, when present, should be used to initiate screening MRI.Materials & methods: We performed a single center retrospective review of NSCLC patients, examining BM development and overall survival. Available clinical, radiographic and molecular data were reviewed for association with BM and overall survival. A predictive model for BM development was created for multivariate analysis.Results: Risk factors for new BM development in NSCLC included younger age, larger primary lung tumor, Karnofsky performance score (KPS) <70, pre-existing liver or bone metastases, large cell histology and family history of cancer. Factors associated with decreased OS were larger primary lung tumor, extracranial metastases at time of diagnosis, large cell histology and poorly-differentiated carcinoma histology.Conclusion: There are multiple high risk features for developing BM in NSCLC. Each of these factors should routinely be investigated, and presence should prompt brain MRI to allow earlier diagnosis and treatment of BM.
{"title":"Development of brain metastases in non-small-cell lung cancer: high-risk features.","authors":"Nolan Winslow, Jacqueline Boyle, William Miller, Yanzhi Wang, Francois Geoffroy, Andrew J Tsung","doi":"10.1080/20450907.2024.2395804","DOIUrl":"https://doi.org/10.1080/20450907.2024.2395804","url":null,"abstract":"<p><p><b>Aim:</b> Brain metastases (BM) are a common site of disease progression and treatment failure in non-small-cell lung cancer (NSCLC) and can be identified in up to 30-50% of patients. Although they are common, there is no standardized screening protocol for development of BM in NSCLC. Multiple clinical variables predict increased BM occurrence, and, when present, should be used to initiate screening MRI.<b>Materials & methods:</b> We performed a single center retrospective review of NSCLC patients, examining BM development and overall survival. Available clinical, radiographic and molecular data were reviewed for association with BM and overall survival. A predictive model for BM development was created for multivariate analysis.<b>Results:</b> Risk factors for new BM development in NSCLC included younger age, larger primary lung tumor, Karnofsky performance score (KPS) <70, pre-existing liver or bone metastases, large cell histology and family history of cancer. Factors associated with decreased OS were larger primary lung tumor, extracranial metastases at time of diagnosis, large cell histology and poorly-differentiated carcinoma histology.<b>Conclusion:</b> There are multiple high risk features for developing BM in NSCLC. Each of these factors should routinely be investigated, and presence should prompt brain MRI to allow earlier diagnosis and treatment of BM.</p>","PeriodicalId":10469,"journal":{"name":"CNS Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11404603/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142281455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-03-24DOI: 10.1080/15592324.2024.2329841
Felix Lutter, Wolfram Brenner, Franziska Krajinski-Barth, Vajiheh Safavi-Rizi
Nitric oxide (NO) and cytokinins (CKs) are known for their crucial contributions to plant development, growth, senescence, and stress response. Despite the importance of both signals in stress responses, their interaction remains largely unexplored. The interplay between NO and CKs emerges as particularly significant not only regarding plant growth and development but also in addressing plant stress response, particularly in the context of extreme weather events leading to yield loss. In this review, we summarize NO and CKs metabolism and signaling. Additionally, we emphasize the crosstalk between NO and CKs, underscoring its potential impact on stress response, with a focus on hypoxia tolerance. Finally, we address the most urgent questions that demand answers and offer recommendations for future research endeavors.
众所周知,一氧化氮(NO)和细胞分裂素(CKs)对植物的发育、生长、衰老和胁迫响应有着至关重要的贡献。尽管这两种信号在胁迫响应中都很重要,但它们之间的相互作用在很大程度上仍未得到探索。NO 和 CKs 之间的相互作用不仅对植物的生长和发育具有重要意义,而且对植物的胁迫响应也具有重要意义,尤其是在极端天气事件导致减产的情况下。在这篇综述中,我们总结了 NO 和 CKs 的新陈代谢和信号转导。此外,我们还强调了 NO 和 CKs 之间的相互影响,强调了其对胁迫响应的潜在影响,重点是缺氧耐受性。最后,我们探讨了亟待解决的问题,并对未来的研究工作提出了建议。
{"title":"Nitric oxide and cytokinin cross-talk and their role in plant hypoxia response.","authors":"Felix Lutter, Wolfram Brenner, Franziska Krajinski-Barth, Vajiheh Safavi-Rizi","doi":"10.1080/15592324.2024.2329841","DOIUrl":"10.1080/15592324.2024.2329841","url":null,"abstract":"<p><p>Nitric oxide (NO) and cytokinins (CKs) are known for their crucial contributions to plant development, growth, senescence, and stress response. Despite the importance of both signals in stress responses, their interaction remains largely unexplored. The interplay between NO and CKs emerges as particularly significant not only regarding plant growth and development but also in addressing plant stress response, particularly in the context of extreme weather events leading to yield loss. In this review, we summarize NO and CKs metabolism and signaling. Additionally, we emphasize the crosstalk between NO and CKs, underscoring its potential impact on stress response, with a focus on hypoxia tolerance. Finally, we address the most urgent questions that demand answers and offer recommendations for future research endeavors.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10962617/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140195413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-07-25DOI: 10.1080/15592324.2024.2383822
Hanyi Choi, Hyunjae Shin, Chan Yong Kim, Jeongbin Park, Hyeran Kim
Parthenocarpy, characterized by seedless fruit development without pollination or fertilization, offers the advantage of consistent fruit formation, even under challenging conditions such as high temperatures. It can be induced by regulating auxin homeostasis; PAD1 (PARENTAL ADVICE-1) is an inducer of parthenocarpy in Solanaceae plants. However, precise editing of PAD1 is not well studied in peppers. Here, we report a highly efficient clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) ribonucleoprotein (RNP) for CaPAD1 editing in three valuable cultivars of pepper (Capsicum annuum L.): Dempsey, a gene-editable bell pepper; C15, a transformable commercial inbred line; and Younggo 4, a Korean landrace. To achieve the seedless pepper trait under high temperatures caused by unstable climate change, we designed five single guide RNAs (sgRNAs) targeting the CaPAD1 gene. We evaluated the in vitro on-target activity of the RNP complexes in three cultivars. Subsequently, we introduced five CRISPR/Cas9-RNP complexes into protoplasts isolated from three pepper leaves and compared indel frequencies and patterns through targeted deep sequencing analyses. We selected two sgRNAs, sgRNA2 and sgRNA5, which had high in vivo target efficiencies for the CaPAD1 gene across the three cultivars and were validated as potential off-targets in their genomes. These findings are expected to be valuable tools for developing new seedless pepper cultivars through precise molecular breeding of recalcitrant crops in response to climate change.
{"title":"Highly efficient CRISPR/Cas9-RNP mediated <i>CaPAD1</i> editing in protoplasts of three pepper (<i>Capsicum annuum</i> L.) cultivars.","authors":"Hanyi Choi, Hyunjae Shin, Chan Yong Kim, Jeongbin Park, Hyeran Kim","doi":"10.1080/15592324.2024.2383822","DOIUrl":"10.1080/15592324.2024.2383822","url":null,"abstract":"<p><p>Parthenocarpy, characterized by seedless fruit development without pollination or fertilization, offers the advantage of consistent fruit formation, even under challenging conditions such as high temperatures. It can be induced by regulating auxin homeostasis; <i>PAD1</i> (<i>PARENTAL ADVICE-1</i>) is an inducer of parthenocarpy in <i>Solanaceae</i> plants. However, precise editing of <i>PAD1</i> is not well studied in peppers. Here, we report a highly efficient clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) ribonucleoprotein (RNP) for <i>CaPAD1</i> editing in three valuable cultivars of pepper (<i>Capsicum annuum</i> L.): Dempsey, a gene-editable bell pepper; C15, a transformable commercial inbred line; and Younggo 4, a Korean landrace. To achieve the seedless pepper trait under high temperatures caused by unstable climate change, we designed five single guide RNAs (sgRNAs) targeting the <i>CaPAD1</i> gene. We evaluated <i>the in vitro</i> on-target activity of the RNP complexes in three cultivars. Subsequently, we introduced five CRISPR/Cas9-RNP complexes into protoplasts isolated from three pepper leaves and compared indel frequencies and patterns through targeted deep sequencing analyses. We selected two sgRNAs, sgRNA2 and sgRNA5, which had high <i>in vivo</i> target efficiencies for the <i>CaPAD1</i> gene across the three cultivars and were validated as potential off-targets in their genomes. These findings are expected to be valuable tools for developing new seedless pepper cultivars through precise molecular breeding of recalcitrant crops in response to climate change.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11275519/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141763604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-05-14DOI: 10.1080/15592324.2024.2349868
Qilin Yang, Jinheng Huang, Xiaofeng Nie, XiaoMin Tang, Peiran Liao, Quan Yang
The purpose of this study was to analyze the role of transcription factor in Desmodium styracifolium, proving that the DsWRKY6 transcription factor was related to the plant phenotypes of Desmodium styracifolium - cv. 'GuangYaoDa1' and it could be used in molecular-assisted breeding. 'GuangYaoDa1' was used as the material and its DNA was the template to clone DsWRKY6, the transgenic Arabidopsis thaliana line was constructed by agrobacterium tumefaciens‑mediated transformation. Transgenic Arabidopsis thaliana was cultivated to study phenotype and physiological and biochemical indexes. Phenotypic observation showed that DsWRKY6 transgenic Arabidopsis thaliana had a faster growth rate while compared with the control group, they had longer lengths of main stem, lateral branches of cauline leaves, and root, but a lower number of cauline leaves and lateral branches of cauline leaves. And it also showed that their flowering and fruiting periods were advanced. The results of physiological and biochemical indexes showed that the relative expressions of DsWRKY6 increased and the abscisic acid content significantly increased in DsWRKY6 transgenic Arabidopsis thaliana compared with the control group. According to the above results, DsWRKY6 could regulate the advancing of flowering and fruiting periods caused by the improvement of abscisic acid content, and expression of the DsWRKY6 transcription factor might be the cause of the upright growth of 'GuangYaoDa1'.
{"title":"Cloning and functional validation of <i>DsWRKY6</i> gene from <i>Desmodium styracifolium</i>.","authors":"Qilin Yang, Jinheng Huang, Xiaofeng Nie, XiaoMin Tang, Peiran Liao, Quan Yang","doi":"10.1080/15592324.2024.2349868","DOIUrl":"10.1080/15592324.2024.2349868","url":null,"abstract":"<p><p>The purpose of this study was to analyze the role of transcription factor in <i>Desmodium styracifolium</i>, proving that the <i>DsWRKY6</i> transcription factor was related to the plant phenotypes of <i>Desmodium styracifolium</i> - cv. 'GuangYaoDa1' and it could be used in molecular-assisted breeding. 'GuangYaoDa1' was used as the material and its DNA was the template to clone DsWRKY6, the transgenic <i>Arabidopsis thaliana</i> line was constructed by agrobacterium tumefaciens‑mediated transformation. Transgenic <i>Arabidopsis thaliana</i> was cultivated to study phenotype and physiological and biochemical indexes. Phenotypic observation showed that <i>DsWRKY6</i> transgenic <i>Arabidopsis thaliana</i> had a faster growth rate while compared with the control group, they had longer lengths of main stem, lateral branches of cauline leaves, and root, but a lower number of cauline leaves and lateral branches of cauline leaves. And it also showed that their flowering and fruiting periods were advanced. The results of physiological and biochemical indexes showed that the relative expressions of <i>DsWRKY6</i> increased and the abscisic acid content significantly increased in <i>DsWRKY6</i> transgenic <i>Arabidopsis thaliana</i> compared with the control group. According to the above results, <i>DsWRKY6</i> could regulate the advancing of flowering and fruiting periods caused by the improvement of abscisic acid content, and expression of the <i>DsWRKY6</i> transcription factor might be the cause of the upright growth of 'GuangYaoDa1'.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11095563/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140924162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-31Epub Date: 2024-06-26DOI: 10.1080/15592324.2024.2371693
Anetta Kuczyńska, Martyna Michałek, Piotr Ogrodowicz, Michał Kempa, Natalia Witaszak, Michał Dziurka, Damian Gruszka, Agata Daszkowska-Golec, Iwona Szarejko, Paweł Krajewski, Krzysztof Mikołajczak
One of the main signal transduction pathways that modulate plant growth and stress responses, including drought, is the action of phytohormones. Recent advances in omics approaches have facilitated the exploration of plant genomes. However, the molecular mechanisms underlying the response in the crown of barley, which plays an essential role in plant performance under stress conditions and regeneration after stress treatment, remain largely unclear. The objective of the present study was the elucidation of drought-induced molecular reactions in the crowns of different barley phytohormone mutants. We verified the hypothesis that defects of gibberellins, brassinosteroids, and strigolactones action affect the transcriptomic, proteomic, and hormonal response of barley crown to the transitory drought influencing plant development under stress. Moreover, we assumed that due to the strong connection between strigolactones and branching the hvdwarf14.d mutant, with dysfunctional receptor of strigolactones, manifests the most abundant alternations in crowns and phenotype under drought. Finally, we expected to identify components underlying the core response to drought which are independent of the genetic background. Large-scale analyses were conducted using gibberellins-biosynthesis, brassinosteroids-signaling, and strigolactones-signaling mutants, as well as reference genotypes. Detailed phenotypic evaluation was also conducted. The obtained results clearly demonstrated that hormonal disorders caused by mutations in the HvGA20ox2, HvBRI1, and HvD14 genes affected the multifaceted reaction of crowns to drought, although the expression of these genes was not induced by stress. The study further detected not only genes and proteins that were involved in the drought response and reacted specifically in mutants compared to the reaction of reference genotypes and vice versa, but also the candidates that may underlie the genotype-universal stress response. Furthermore, candidate genes involved in phytohormonal interactions during the drought response were identified. We also found that the interplay between hormones, especially gibberellins and auxins, as well as strigolactones and cytokinins may be associated with the regulation of branching in crowns exposed to drought. Overall, the present study provides novel insights into the molecular drought-induced responses that occur in barley crowns.
{"title":"Drought-induced molecular changes in crown of various barley phytohormone mutants.","authors":"Anetta Kuczyńska, Martyna Michałek, Piotr Ogrodowicz, Michał Kempa, Natalia Witaszak, Michał Dziurka, Damian Gruszka, Agata Daszkowska-Golec, Iwona Szarejko, Paweł Krajewski, Krzysztof Mikołajczak","doi":"10.1080/15592324.2024.2371693","DOIUrl":"10.1080/15592324.2024.2371693","url":null,"abstract":"<p><p>One of the main signal transduction pathways that modulate plant growth and stress responses, including drought, is the action of phytohormones. Recent advances in omics approaches have facilitated the exploration of plant genomes. However, the molecular mechanisms underlying the response in the crown of barley, which plays an essential role in plant performance under stress conditions and regeneration after stress treatment, remain largely unclear. The objective of the present study was the elucidation of drought-induced molecular reactions in the crowns of different barley phytohormone mutants. We verified the hypothesis that defects of gibberellins, brassinosteroids, and strigolactones action affect the transcriptomic, proteomic, and hormonal response of barley crown to the transitory drought influencing plant development under stress. Moreover, we assumed that due to the strong connection between strigolactones and branching the <i>hvdwarf14.d</i> mutant, with dysfunctional receptor of strigolactones, manifests the most abundant alternations in crowns and phenotype under drought. Finally, we expected to identify components underlying the core response to drought which are independent of the genetic background. Large-scale analyses were conducted using gibberellins-biosynthesis, brassinosteroids-signaling, and strigolactones-signaling mutants, as well as reference genotypes. Detailed phenotypic evaluation was also conducted. The obtained results clearly demonstrated that hormonal disorders caused by mutations in the <i>HvGA20ox2</i>, <i>HvBRI1</i>, and <i>HvD14</i> genes affected the multifaceted reaction of crowns to drought, although the expression of these genes was not induced by stress. The study further detected not only genes and proteins that were involved in the drought response and reacted specifically in mutants compared to the reaction of reference genotypes and <i>vice versa</i>, but also the candidates that may underlie the genotype-universal stress response. Furthermore, candidate genes involved in phytohormonal interactions during the drought response were identified. We also found that the interplay between hormones, especially gibberellins and auxins, as well as strigolactones and cytokinins may be associated with the regulation of branching in crowns exposed to drought. Overall, the present study provides novel insights into the molecular drought-induced responses that occur in barley crowns.</p>","PeriodicalId":94172,"journal":{"name":"Plant signaling & behavior","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210921/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}