Molecular Plant最新文献_第7页

Integrative Regulation of Drought Escape through ABA-Dependent and -Independent Pathways in Rice aba依赖性和非依赖性途径对水稻抗旱的综合调控

IF 27.5 1区生物学

Molecular Plant Pub Date : 2026-08-24 DOI: 10.1016/j.molp.2026.08.013

Hao Du,Fei Huang,Nai Wu,Xianghua Li,Honghong Hu,Lizhong Xiong

引用次数: 0

The TORC-SnRK Axis: An Integrative Signaling Framework Balancing Growth and Stress Responses in Plants TORC-SnRK轴：平衡植物生长和胁迫反应的综合信号框架

IF 27.5 1区生物学

Molecular Plant Pub Date : 2026-08-22 DOI: 10.1016/j.molp.2026.08.018

Gao-Jia Yan,Qiu-Yan Yang,Yu-Song Liu,Jian Li,Hui Xue,Sheng Luan,Kun-Lun Li

{"title":"The TORC-SnRK Axis: An Integrative Signaling Framework Balancing Growth and Stress Responses in Plants","authors":"Gao-Jia Yan,Qiu-Yan Yang,Yu-Song Liu,Jian Li,Hui Xue,Sheng Luan,Kun-Lun Li","doi":"10.1016/j.molp.2026.08.018","DOIUrl":"https://doi.org/10.1016/j.molp.2026.08.018","url":null,"abstract":"As sessile organisms, plants must continuously balance growth and stress adaptation in response to fluctuating environments. This balance is largely governed by two evolutionarily conserved kinase systems, the Target of Rapamycin Complex (TORC) and Snf1-Related Kinases (SnRKs). Under favorable conditions, plants adopt a “growth mode” in which sufficient nutrients, energy, and growth-promoting hormones activate TORC to drive anabolic metabolism, cell proliferation, and biomass accumulation. By contrast, under adverse conditions such as energy limitation, nutrient deprivation, and other environmental stresses, plants shift to an “adaptation mode” in which stress-associated cues, including low ATP, stress hormones (e.g., ABA), and Ca2+ transients activate distinct SnRK modules (SnRK1, SnRK2, and SnRK3/CIPKs) to promote catabolic reprogramming and enhance stress tolerance. Recent advances support a unifying model in which TORC and SnRKs reciprocally regulate each other, enabling plants to switch between growth and adaptation. In this review, we summarize how diverse growth-associated signals converge on TORC and how stress-specific signaling inputs selectively activate SnRK modules, and we highlight recent progress in elucidating the molecular mechanisms underlying TORC-SnRK crosstalk. We propose that the TORC-SnRK axis serves as a central signaling module that integrates energy, hormonal, and Ca2+ signals to coordinate growth and stress responses. This conceptual framework facilitates a mechanistic understanding on how plants optimize fitness in fluctuating environments and offers potential strategies for improving crop performance through targeted manipulation of this regulatory network.","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":"348 1","pages":""},"PeriodicalIF":27.5,"publicationDate":"2026-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148768869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Structural insights into the transport and gating mechanisms of the plant high-affinity K+ transporter AtHAK5 植物高亲和K+转运体AtHAK5的转运和门控机制的结构见解

IF 27.5 1区生物学

Molecular Plant Pub Date : 2026-08-20 DOI: 10.1016/j.molp.2026.08.017

Chu Wang,Xiaohui Wang,Yannan Qu,Huaizong Shen

引用次数: 0

The maize CMS-C fertility restore gene ZmRf4b encodes a SPL transcription factor that represses ZmMAP1D-mediated co-translational turnover of mitochondrial toxic ATP6C protein 玉米CMS-C育性恢复基因ZmRf4b编码SPL转录因子，抑制zmmap1d介导的线粒体毒性ATP6C蛋白的共翻译转换

IF 27.5 1区生物学

Molecular Plant Pub Date : 2026-08-20 DOI: 10.1016/j.molp.2026.08.016

Bing Li,Huaisheng Zhang,Runbo Zhang,Shicheng Feng,Fanli Yang,Congnian Ding,Xuyuan Shen,Keke Shao,Lu Yang,Yanan Lin,Dong Ding,Quancan Hou,Hongwei Xue,Huili Yang,Jihua Tang,Yadong Xue

{"title":"The maize CMS-C fertility restore gene ZmRf4b encodes a SPL transcription factor that represses ZmMAP1D-mediated co-translational turnover of mitochondrial toxic ATP6C protein","authors":"Bing Li,Huaisheng Zhang,Runbo Zhang,Shicheng Feng,Fanli Yang,Congnian Ding,Xuyuan Shen,Keke Shao,Lu Yang,Yanan Lin,Dong Ding,Quancan Hou,Hongwei Xue,Huili Yang,Jihua Tang,Yadong Xue","doi":"10.1016/j.molp.2026.08.016","DOIUrl":"https://doi.org/10.1016/j.molp.2026.08.016","url":null,"abstract":"The promising CMS-C/Rf system has not been applied on a large scale in maize hybrid breeding due to the unclear restoration mechanism for the primary restorer ZmRf4b. In CMS-C maize, the mitochondrial chimeric gene atp6c encodes a cytotoxic variant of ATP6 that over-accumulates and disrupts the assembly of mitochondrial complex V, leading to male sterility. Here, we report the map-based cloning and functional characterization of ZmRf4b, which encodes a SQUAMOSA promoter-binding protein-like (SPL) transcription factor. Through DAP-seq and yeast two-hybrid screening, we identified ZmMAP1D, a mitochondrion-targeted methionine aminopeptidase, as a direct downstream target of ZmRf4b. ZmRf4b functions as a transcriptional repressor that directly binds the ZmMAP1D promoter; in the restorer line, the relatively low expression level of ZmRf4b weakens its repression of ZmMAP1D, permitting moderate ZmMAP1D accumulation. ZmMAP1D is then imported to mitochondria, where it co-translationally removes the N-terminal methionine of ATP6C, thereby targeting excess ATP6C for degradation. The reduction of ATP6C to normal levels restores mitochondrial complex V assembly, alleviates reactive oxygen species accumulation and tapetal programmed cell death, and ultimately restores male fertility. This study reveals a previously unrecognized fertility restoration mechanism operating through co-translational protein turnover—rather than transcriptional or translational suppression of the CMS gene—providing new insights into nucleus-mitochondria communication and mitochondrial protein homeostasis.","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":"72 1","pages":""},"PeriodicalIF":27.5,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148768871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

OSK3-OsbZIP58: a sugar-sensing regulatory module links high-temperature to pre-harvest sprouting in rice OSK3-OsbZIP58：一个糖传感调控模块，将高温与水稻收获前发芽联系起来

IF 27.5 1区生物学

Molecular Plant Pub Date : 2026-08-19 DOI: 10.1016/j.molp.2026.08.014

Fan Xu,Chengcai Chu

引用次数: 0

Keeping maize reproduction in sync 保持玉米繁殖同步

IF 27.5 1区生物学

Molecular Plant Pub Date : 2026-08-19 DOI: 10.1016/j.molp.2026.08.015

Guo-Jun Li,Zhi-Ruo Zhang,Yang Zhao

引用次数: 0

Keystone discoveries in the assembly of architecturally complex diterpenoid alkaloids 结构复杂的二萜生物碱组装中的关键发现