Plant Cell最新文献_第5页

Nitrate attenuates abscisic acid signaling via NIN-LIKE PROTEIN8 in Arabidopsis seed germination. 硝酸盐在拟南芥种子萌发过程中通过n - like蛋白8减弱脱落酸信号。

IF 1 1区生物学

Plant Cell Pub Date : 2025-03-05 DOI: 10.1093/plcell/koaf046

Zhichong Huang, Xiao Han, Kunrong He, Jingwen Ye, Chunlan Yu, Tingting Xu, Juping Zhang, Jiancan Du, Qiantang Fu, Yanru Hu

{"title":"Nitrate attenuates abscisic acid signaling via NIN-LIKE PROTEIN8 in Arabidopsis seed germination.","authors":"Zhichong Huang, Xiao Han, Kunrong He, Jingwen Ye, Chunlan Yu, Tingting Xu, Juping Zhang, Jiancan Du, Qiantang Fu, Yanru Hu","doi":"10.1093/plcell/koaf046","DOIUrl":"10.1093/plcell/koaf046","url":null,"abstract":"Abscisic acid (ABA) suppresses Arabidopsis (Arabidopsis thaliana) seed germination and post-germinative growth. Nitrate stimulates seed germination, but whether it directly regulates ABA signaling and the associated underlying molecular mechanisms remain unknown. Here, we showed that nitrate alleviates the repressive effects of ABA on seed germination independently of the nitric oxide (NO) pathway. Moreover, nitrate attenuates ABA signaling activated by ABSCISIC ACID INSENSITIVE3 (ABI3) and ABI5, two critical transcriptional regulators of the ABA pathway. Mechanistic analyses demonstrated that ABI3 and ABI5 physically interact with the nitrate signaling-related core transcription factor NIN-LIKE PROTEIN 8 (NLP8). After ABA treatment, NLP8 suppresses ABA responses during seed germination without affecting ABA content. Notably, nitrate represses ABA signaling mainly through NLP8. Genetic analyses showed that NLP8 acts upstream of ABI3 and ABI5. Specifically, NLP8 inhibits the transcriptional functions of ABI3 and ABI5, as well as their ABA-induced accumulation. Additionally, NLP8 overexpression largely suppresses the ABA hypersensitivity of mutant plants exhibiting impaired NO biosynthesis or signaling. Collectively, our study reveals that nitrate counteracts the inhibitory effects of ABA signaling on seed germination and provides mechanistic insights into the NLP8-ABI3/ABI5 interactions and their antagonistic relationships in ABA signaling.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11952927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143693047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Melatonin a day: Mitigates saline-alkali stress away! 每天褪黑素：减轻盐碱压力！

IF 1 1区生物学

Plant Cell Pub Date : 2025-03-05 DOI: 10.1093/plcell/koaf039

Meenu Singla-Rastogi

引用次数: 0

DEFinitely multitasking: Orchestration of petunia floral scent and petal formation. 绝对多任务：牵牛花花香和花瓣形成的编排。

IF 1 1区生物学

Plant Cell Pub Date : 2025-03-05 DOI: 10.1093/plcell/koaf037

Linhan Sun

引用次数: 0

With a little help from ferredoxin-NADP+ reductase: Enhancing photosynthetic cyclic electron transfer around PSI. 在铁氧化还原蛋白- nadp +还原酶的帮助下：增强光系统I周围的光合循环电子转移。

IF 1 1区生物学

Plant Cell Pub Date : 2025-03-05 DOI: 10.1093/plcell/koaf045

Guy Levin

引用次数: 0

From the archives: Plasmodesmata-regulation of function, targeting by pathogenic bacteria, and plasmodesmal-associated proteins. 档案资料：胞浆连丝-功能调节，致病菌的靶向，胞浆连丝相关蛋白。

IF 1 1区生物学

Plant Cell Pub Date : 2025-03-05 DOI: 10.1093/plcell/koaf040

Mariana Schuster

引用次数: 0

SALT OVERLY SENSITIVE2 and AMMONIUM TRANSPORTER1;1 contribute to plant salt tolerance by maintaining ammonium uptake. 盐过度敏感2和铵转运体1；1通过维持铵的吸收来促进植物的耐盐性。

IF 1 1区生物学

Plant Cell Pub Date : 2025-02-13 DOI: 10.1093/plcell/koaf034

Liang Ma, De-Bin Qin, Liping Sun, Kaina Zhang, Xiang Yu, An-Kai Dang, Shengfan Hou, Xiaoyun Zhao, Yongqing Yang, Yang Wang, Yuhang Chen, Yan Guo

{"title":"SALT OVERLY SENSITIVE2 and AMMONIUM TRANSPORTER1;1 contribute to plant salt tolerance by maintaining ammonium uptake.","authors":"Liang Ma, De-Bin Qin, Liping Sun, Kaina Zhang, Xiang Yu, An-Kai Dang, Shengfan Hou, Xiaoyun Zhao, Yongqing Yang, Yang Wang, Yuhang Chen, Yan Guo","doi":"10.1093/plcell/koaf034","DOIUrl":"10.1093/plcell/koaf034","url":null,"abstract":"Soil salinity is a severe threat to agriculture and plant growth. Under high salinity conditions, ammonium (NH4+) is the predominant inorganic nitrogen source used by plants due to limited nitrification. However, how ammonium shapes the plant response to salt stress remains a mystery. Here, we demonstrate that the growth of Arabidopsis (Arabidopsis thaliana) seedlings is less sensitive to salt stress when provided with ammonium instead of nitrate (NO3-), a response that is mediated by ammonium transporters (AMTs). We further show that the kinase SALT OVERLY SENSITIVE2 (SOS2) physically interacts with and activates AMT1;1 by directly phosphorylating the nonconserved serine residue Ser-450 in the C-terminal region. In agreement with the involvement of SOS2, ammonium uptake was lower in sos2 mutants grown under salt stress relative to the wild type. Moreover, AMT-mediated ammonium uptake enhanced salt-induced SOS2 kinase activity. Together, our study demonstrates that SOS2 activates AMT1;1 to fine-tune and maintain ammonium uptake and optimize the plant salt stress response.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11840955/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143441787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Super-califragilisticexpialidocious-resolution microscopy: How expansion microscopy can be applied to plants. 超califragilisticexpalidoli -resolution显微镜：如何将扩增显微镜应用于植物。

IF 1 1区生物学

Plant Cell Pub Date : 2025-02-13 DOI: 10.1093/plcell/koaf002

Sonhita Chakraborty

引用次数: 0

Decoupling the pleiotropic effects of VRT-A2 during reproductive development enhances wheat grain length and weight. 解除VRT-A2在生殖发育过程中的多效性作用，使小麦籽粒长度和重量增加。

IF 1 1区生物学

Plant Cell Pub Date : 2025-02-13 DOI: 10.1093/plcell/koaf024

Jing Liu, Chaoqun Dong, Xiangqing Liu, Jinquan Guo, Lingling Chai, Weilong Guo, Zhongfu Ni, Qixin Sun, Jie Liu

{"title":"Decoupling the pleiotropic effects of VRT-A2 during reproductive development enhances wheat grain length and weight.","authors":"Jing Liu, Chaoqun Dong, Xiangqing Liu, Jinquan Guo, Lingling Chai, Weilong Guo, Zhongfu Ni, Qixin Sun, Jie Liu","doi":"10.1093/plcell/koaf024","DOIUrl":"10.1093/plcell/koaf024","url":null,"abstract":"VEGETATIVE TO REPRODUCTIVE TRANSITION 2 (VRT-A2) is a subspecies-forming gene that confers the long-glume and large-grain traits of tetraploid Polish wheat (Triticum polonicum; AABB) and hexaploid Xinjiang rice wheat (T. petropavlovskyi; AABBDD). Transcriptional activation of VRT-A2 due to a natural sequence variation in its Intron-1 region significantly enhances grain weight but also causes some basal spikelets to fail to completely develop, thus decreasing grain number per spike and yield. This yield penalty has presented a challenge for the use of VRT-A2 in breeding high-yield wheat. Here, we report the characterization of 2 regulatory modules that fine-tune VRT-A2 expression in bread wheat (T. aestivum): (i) the APETALA2/Ethylene Responsive Factor (AP2/ERF)-type transcription factor MULTI-FLORET SPIKELET1 (TaMFS1) represses VRT-A2 expression by recruiting a transcriptional corepressor and a histone deacetylase and (ii) the STRUCTURE-SPECIFIC RECOGNITION PROTEIN 1 (TaSSRP1) facilitates VRT-A2 activation by assembling Mediator and further RNA polymerase II. Deleting TaMFS1 triggered moderate upregulation of VRT-A2 results in significantly increased grain weight without the yield penalty. Our study thus provides a feasible strategy for overcoming the tradeoffs of pleotropic genes by editing their upstream transcriptional regulators.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":"37 2","pages":""},"PeriodicalIF":10.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11827615/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decoding maize drought tolerance: The role of the ZmSK1-ZmCPP2-ZmSOD4 module. 解码玉米抗旱性：ZmSK1-ZmCPP2-ZmSOD4模块的作用

IF 1 1区生物学

Plant Cell Pub Date : 2025-02-13 DOI: 10.1093/plcell/koaf030

Jiajun Wang

引用次数: 0

A maize architect: An epiallele of a PfkB-type carbohydrate kinase affects plant growth and development. 玉米建筑师：pfkb型碳水化合物激酶的外等位基因影响植物的生长发育。

IF 1 1区生物学

Plant Cell Pub Date : 2025-02-13 DOI: 10.1093/plcell/koaf025

Meenu Singla-Rastogi

引用次数: 0