Molecular Plant最新文献

{"title":"From non-coding to chromatin regulators: VIVIpary and the rise of lncRNAs in plant biology","authors":"Pablo Mammi, Thomas Blein","doi":"10.1016/j.molp.2025.06.011","DOIUrl":"https://doi.org/10.1016/j.molp.2025.06.011","url":null,"abstract":"","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":"18 1","pages":""},"PeriodicalIF":27.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337750","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}

{"title":"Structural insights of gibberellin-mediated DELLA protein degradation","authors":"Soyaab Islam, Kunwoong Park, Jing Xia, Eunju Kwon, Dong Young Kim","doi":"10.1016/j.molp.2025.06.010","DOIUrl":"https://doi.org/10.1016/j.molp.2025.06.010","url":null,"abstract":"Gibberellin promotes plant growth by downregulating DELLA proteins, which act as growth repressors. In the presence of gibberellin, the gibberellin receptor GID1 binds to DELLA proteins, triggering their degradation through polyubiquitination by the SCF<ce:sup loc=\"post\">SLY1/GID2</ce:sup> ubiquitin E3 ligase. Despite extensive studies, the molecular mechanisms by which DELLA proteins assemble with SCF<ce:sup loc=\"post\">SLY1/GID2</ce:sup> to regulate plant growth remain poorly understood. Here, we present two cryo-electron microscopy structures of the <ce:italic>Arabidopsis thaliana</ce:italic> DELLA protein RGA in complex with GID1A and GID1A-SLY1-ASK2, respectively. Structural analyses revealed that RGA interacts with GID1A and SLY1 through nonoverlapping binding surfaces, stabilizing the proteins. This suggests that the SCF<ce:sup loc=\"post\">SLY1</ce:sup>-RGA-GID1A complex assembles through a stepwise stabilization process induced by gibberellin. Furthermore, structural comparison with GRAS proteins indicates that RGA does not interact with IDD family transcription factors when bound to SLY1, suggesting that DELLA protein binding to GID1/SLY1 and to transcription factors is mutually exclusive. These findings provide insights into the gibberellin-mediated regulation of transcription factor activity by DELLA proteins.","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":"25 1","pages":""},"PeriodicalIF":27.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337741","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}

{"title":"Pan-genome and haplotype map of cassava cultivars and wild ancestors provide insights into its adaptive evolution and domestication.","authors":"Zhiqiang Xia, Zhenglin Du, Xincheng Zhou, Sirong Jiang, Tingting Zhu, Le Wang, Fei Chen, Luiz Carvalho, Meiling Zou, Luis Augusto Becerra Lopez-Lavalle, Xiaofei Zhang, Liangye Xu, Zhenyu Wang, Meili Chen, Xin Guo, Shujuan Wang, Mengtao Li, Yuanchao Li, Haiyan Wang, Shisheng Liu, Yuting Bao, Long Zhao, Chenji Zhang, Jianjia Xiao, Fengguang Guo, Xu Shen, Haozheng Li, Cheng Lu, Fei Qiao, Hernan Ceballos, Huabing Yan, Xiaochun Qin, Ling Ma, Huaifang Zhang, Shuang He, Wenming Zhao, Yinglang Wan, Yinhua Chen, Dongyi Huang, Kaimian Li, Bin Liu, Ming Peng, Weixiong Zhang, Birger Lindberg Møller, Xin Chen, Ming-Cheng Luo, Jingfa Xiao, Wenquan Wang","doi":"10.1016/j.molp.2025.05.014","DOIUrl":"10.1016/j.molp.2025.05.014","url":null,"abstract":"<p><p>Cassava is a highly resilient tropical crop that produces large, starchy storage roots and high biomass. However, how did cassava's remarkable environmental adaptability and key economic traits evolve from its wild species remain unclear. In this study, we obtained near complete telomere-to-telomere genome assemblies and their haplotype forms for the cultivar AM560, the wild ancestors FLA4047 and W14, constructed a graphic pan-genome of 30 representatives with a size of 1.15 Gb, and built a clarified evolutionary tree of 486 accessions. A comparison of structural variations and single-nucleotide variations between the ancestors and cultivated cassavas reveals predominant expansions and contractions of numbers of genes and gene families, which are mainly driven by transposons. Significant selective sweeping occurred in 122 footprints of genomes and affects 1,519 domesticated genes. We identify selective mutations in MeCSK and MeFNR2 that could promote photoreactions associated with MeNADP-ME in C₄ photosynthesis in modern cassava. Coevolution of retard floral primordia and initiation of storage roots may arise from MeCOL5 variants with altered bindings to MeFT1, MeFT2, and MeTFL2. Mutations in MeMATE1 and MeGTR occur in sweet cassava, and MeAHL19 has evolved to regulate the biosynthesis, transport, and endogenous remobilization of cyanogenic glucosides in cassava. These extensive genomic and gene resources provided here, along with the findings on the evolutionary mechanisms responsible for beneficial traits in modern cultivars, lay a strong foundation for future breeding improvements of cassava.</p>","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"1047-1071"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144174190","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}

{"title":"Regulated activation of helper NLRs triggers cell death.","authors":"Manman Zhang, Xiwang Zhao, Cheng Li, Huan Chen, Fengquan Liu","doi":"10.1016/j.molp.2025.04.012","DOIUrl":"10.1016/j.molp.2025.04.012","url":null,"abstract":"","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"928-930"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971773","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}

{"title":"Insects manipulate plant immunity via a cross-kingdom small RNA effector.","authors":"Murad Ghanim","doi":"10.1016/j.molp.2025.04.002","DOIUrl":"10.1016/j.molp.2025.04.002","url":null,"abstract":"","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"923-924"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144034277","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}

{"title":"STP2-mediated sugar transport in tomato shoot apices is critical for CLV3 arabinosylation and fruit locule development under low temperatures.","authors":"Yimei Li, Jiao Wang, Xiao Liang, Shurong Wu, Jie Zhang, Changqi Wu, Anran Wang, Hanmo Fang, Shuting Ding, Jingquan Yu, Shuang Wu, Huan Liu, Kai Shi","doi":"10.1016/j.molp.2025.05.002","DOIUrl":"10.1016/j.molp.2025.05.002","url":null,"abstract":"<p><p>Prolonged exposure to low temperatures during agricultural production often leads to fruit malformation in crops, significantly reducing market value. However, the underlying molecular mechanisms remain poorly understood. In this study, we identify sugar transport protein 2 (STP2) as a critical regulator of tomato fruit locule development under cold conditions. Low temperatures impair long-distance sucrose transport from leaves to shoot apices, resulting in reduced accumulation of glucose and arabinose. In response, STP2 expression is strongly upregulated in shoot apices, promoting glucose and arabinose transport. We found that the CLAVAT3-WUSCHEL (CLV3-WUS) regulatory module, which governs locule formation, relies on STP2-mediated sugar transport for CLV3 arabinosylation. Overexpression of STP2 promotes glucose and arabinose accumulation in shoot apices, enhances CLV3 arabinosylation and the WUS suppression, mitigating the multi-locular malformations induced by low temperatures. Conversely, disruption of STP2 function exacerbates locule number increases under low temperatures, which could not be rescued by exogenous sugar supplementation. Our findings reveal a key mechanism by which STP2-mediated sugar transport supports CLV3 arabinosylation to maintain fruit locule development under low temperatures, offering potential strategies to alleviate fruit malformations in winter crop cultivation.</p>","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"1014-1028"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144019154","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}

{"title":"Decoding the senses: A new player in plant-virus dynamics unveiled.","authors":"Marco Aurelio Ferreira, Fredy D A Silva, Pedro A B Reis, Elizabeth P B Fontes","doi":"10.1016/j.molp.2025.05.001","DOIUrl":"10.1016/j.molp.2025.05.001","url":null,"abstract":"","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"934-937"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144019280","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}

{"title":"A new class of receptors for plant G-proteins.","authors":"Sona Pandey","doi":"10.1016/j.molp.2025.04.011","DOIUrl":"10.1016/j.molp.2025.04.011","url":null,"abstract":"","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"925-927"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144019261","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}

{"title":"Darwin's orchid: Plant-pollinator coevolution, chemical ecology, and genomic insights into convergent evolution of floral scent biosynthesis.","authors":"Joerg Bohlmann","doi":"10.1016/j.molp.2025.04.014","DOIUrl":"10.1016/j.molp.2025.04.014","url":null,"abstract":"","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"931-933"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144045156","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}

{"title":"Cytokinin signaling connects the chloroplast function with nuclear genome stability.","authors":"Elody Vallet, Cécile Raynaud","doi":"10.1016/j.molp.2025.03.016","DOIUrl":"10.1016/j.molp.2025.03.016","url":null,"abstract":"","PeriodicalId":19012,"journal":{"name":"Molecular Plant","volume":" ","pages":"920-922"},"PeriodicalIF":17.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143743099","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}