Plant Molecular Biology最新文献

ICE1 plays a vital role in the development of pollen grains through regulating tapetum degradation and nutrient mobilization in Arabidopsis thaliana. ICE1通过调节拟南芥绒毡层降解和养分动员，在花粉粒发育中起着至关重要的作用。

IF 3.8 2区生物学

Plant Molecular Biology Pub Date : 2026-05-01 DOI: 10.1007/s11103-026-01712-y

Fa-Li Chang, Jer-Lun Kuo, Meng-Ting Wu, Ching-Hsing Liang, Shiang-Jiuun Chen, Chien-Chih Yang

{"title":"ICE1 plays a vital role in the development of pollen grains through regulating tapetum degradation and nutrient mobilization in Arabidopsis thaliana.","authors":"Fa-Li Chang, Jer-Lun Kuo, Meng-Ting Wu, Ching-Hsing Liang, Shiang-Jiuun Chen, Chien-Chih Yang","doi":"10.1007/s11103-026-01712-y","DOIUrl":"https://doi.org/10.1007/s11103-026-01712-y","url":null,"abstract":"ICE1 (Inducer of CBF Expression 1) of Arabidopsis thaliana is a transcription factor involved in a wide range of physiological processes, including stress responses and plant development. Recently, the regulatory role of ICE1 in the development of the male reproduction system was reported; the failure of the ICE1 mutant ice1-2 to carry out anther dehydration was observed to have resulted from impaired stomata development. In this study, we show that ICE1 influences anther and pollen development by facilitating timely tapetum degradation and nutrient mobilization. Transmission electron microscopy revealed that ice1-2 pollen grains exhibited disorganized cytoplasm and large vacuoles. Semi-thin sectioning of ice1-2 anthers from different developmental stages showed retarded anther dehiscence, defective pollen grains, and delayed tapetum degradation. In addition, ice1-2 exhibited altered sugar and lipid distribution patterns, suggesting that abnormal pollenkitt deposition results from impaired nutrient mobilization and defective tapetal degradation. Lastly, we also investigated and confirmed interactions between ICE1 and key regulators of tapetum and pollen development, DYT1 and AMS. Together, our observations suggest an additional role of ICE1 in anther and pollen development via the regulation of tapetum development, likely through the interactions of ICE1 and other transcription factors involved in tapetal and pollen development.","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":"116 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147819532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transcriptional and post-transcriptional regulatory networks controlling cotton fibre development. 控制棉纤维发育的转录和转录后调控网络。

IF 3.8 2区生物学

Plant Molecular Biology Pub Date : 2026-04-30 DOI: 10.1007/s11103-026-01715-9

Rasmieh Hamid, Bahman Panahi, Zahra Ghorbanzadeh

{"title":"Transcriptional and post-transcriptional regulatory networks controlling cotton fibre development.","authors":"Rasmieh Hamid, Bahman Panahi, Zahra Ghorbanzadeh","doi":"10.1007/s11103-026-01715-9","DOIUrl":"https://doi.org/10.1007/s11103-026-01715-9","url":null,"abstract":"Cotton fibre development is an extreme form of plant cell differentiation in which a single ovule epidermal cell undergoes fate specification, sustained polar elongation, secondary cell wall thickening, and terminal maturation. This review provides a stage-resolved synthesis of the transcriptional and post-transcriptional regulatory mechanisms that govern fibre development from initiation through maturation. We dissect the hierarchical organisation and functional interplay of major transcription factor families including MYB and MYBMIXTA-like proteins, HD-ZIP IV homeobox factors, WRKY, bHLH, NAC, TCP, bZIP, AP2/ERF, and zinc finger proteins and examine how these regulators coordinate epidermal cell fate acquisition, elongation-associated cell wall remodelling, and the onset of cellulose-dominated secondary wall biosynthesis. We further integrate evidence for post-transcriptional regulation mediated by microRNAs, phased siRNAs, and alternative splicing, highlighting their roles in shaping developmental timing, hormone-responsive transcriptional outputs, and regulatory stability across fibre developmental transitions. Genomic, epigenomic, transcriptomic, proteomic, and metabolomic studies are synthesised to illustrate how dynamic chromatin states, RNA processing, and metabolic reprogramming intersect with transcription factor networks in a stage-dependent manner. The review also examines how polyploidy, subgenome expression bias, and regulatory divergence among Gossypium species contribute to variation in fibre morphology and quality traits.","PeriodicalId":20064,"journal":{"name":"Plant Molecular Biology","volume":"116 3","pages":""},"PeriodicalIF":3.8,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147819610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trehalose: a multifunctional sugar and its metabolites are biotechnological targets for crop salinity tolerance under saline conditions. 海藻糖：一种多功能糖及其代谢物是盐碱条件下作物耐盐性的生物技术靶标。

IF 3.8 2区生物学

Plant Molecular Biology Pub Date : 2026-04-23 DOI: 10.1007/s11103-026-01705-x

Mohamed Magdy F Mansour, Fahmy A S Hassan