Plant Communications最新文献

{"title":"A bHLH7-PDF2 module mediates transcriptional regulation to repress seed oil accumulation in Arabidopsis thaliana.","authors":"Zijin Liu, Yu Zhao, Lianying Mao, Dong Li, Bo Song, Minshan Jin, Jun Ma, Jianjun Wang, Shuangcheng He, Shixiang Wang, Huan Hu, Yuan Guo, Saiqi Yang, Mingxun Chen","doi":"10.1016/j.xplc.2025.101459","DOIUrl":"https://doi.org/10.1016/j.xplc.2025.101459","url":null,"abstract":"<p><p>Seed oil accumulation requires precise coordination of multiple factors, and transcription factors (TFs) play crucial roles in governing this process. However, the knowledge of how TFs and the crosstalk between different TF families coordinate the transcriptional network associated with seed oil accumulation is still lacking. Here, we report that both basic helix-loop-helix7 (bHLH7) and PROTODERMAL FACTOR2 (PDF2) TFs, highly expressed in the developing embryos, negatively control seed oil accumulation. bHLH7 and PDF2 physically interact and cooperatively inhibit the transcription of MYB96, PYRUVATE DEHYDROGENASE E1 BETA1 (PDH-E1β1), PDH-E1β2, and BIOTIN CARBOXYL CARRIER PROTEIN1 (BCCP1) by directly binding to their promoters. Further genetic findings demonstrated that bHLH7 and PDF2 act in an additive manner to repress seed oil accumulation, and this effect is partially dependent on PDH-E1β1 that significantly promotes seed oil deposition. Collectively, we provide insights into the mechanisms by which transcriptional regulation mediated by the bHLH7-PDF2 module controls oil accumulation in A. thaliana seeds.</p>","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101459"},"PeriodicalIF":9.4,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144668995","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":"The bZIP transcription factor RISBZ1 balances grain filling and ER stress response in rice grains.","authors":"Qi Sun, Erchao Duan, Ruonan Jing, Yulong Ren, Huan Xu, Chuanwei Gu, Wenting Lv, Xiaokang Jiang, Rongbo Chen, Qingkai Wang, Yipeng Zhang, Rushuang Zhang, Hongyi Xu, Yunpeng Zhang, Jiajia Chi, Yunfei Fu, Yun Zhu, Yu Zhang, Binglei Zhang, Xuan Teng, Hui Dong, Xue Yang, Lei Zhou, Yunlu Tian, Xi Liu, Shijia Liu, Xiuping Guo, Cailin Lei, Ling Jiang, Yihua Wang, Jianmin Wan","doi":"10.1016/j.xplc.2025.101458","DOIUrl":"https://doi.org/10.1016/j.xplc.2025.101458","url":null,"abstract":"<p><p>In cereal crops, the endosperm is responsible for synthesizing large amounts of proteins, including storage proteins and functional factors essential for the accumulation of storage substances. The unfolded protein response (UPR) monitors the folding of nascent polypeptides in the endoplasmic reticulum (ER) to alleviate cellular stress. However, the molecular mechanisms linking UPR to endosperm development in plants remain poorly understood. In this study, we isolated and characterized a rice (Oryza sativa L) mutant with defective endosperm development, which we named floury endosperm27 (flo27). Molecular cloning revealed that FLO27 encodes RISBZ1/bZIP58, an endosperm-specific transcription factor that is co-expressed with seed storage protein (SSP) genes and starch biosynthesis-related genes in rice. We found that the flo27 mutant exhibits severe ER stress, accompanied by the upregulation of UPR-related genes. Notably, RISBZ1 interacts with bZIP50 and bZIP60 to antagonistically downregulate the expression of downstream UPR genes. These interactions simultaneously suppress the expression of SSP genes and starch biosynthesis-related genes, ultimately leading to reduced dry matter accumulation. In conclusion, our findings demonstrate that RISBZ1 acts as a \"brake signal\" to mitigate ER stress, thereby broadening our understanding of the delicate trade-off between grain-filling and adaptation to adverse environmental conditions in rice.</p>","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101458"},"PeriodicalIF":9.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144668996","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 telomere-to-telomere genome assembly for greater yam (Dioscorea alata).","authors":"Yan-Mei Zhang, Zhi-Yan Wei, Cheng-Ao Yang, Xing-Yu Feng, Yue Wang, Sai-Xi Li, Xiao-Qin Sun, Zhu-Qing Shao, Jia-Yu Xue","doi":"10.1016/j.xplc.2025.101326","DOIUrl":"10.1016/j.xplc.2025.101326","url":null,"abstract":"","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101326"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281257/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143781359","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}

{"title":"Efficient haploid induction in Arabidopsis thaliana by fine-tuning CENH3 function.","authors":"Huan Yang, Ruihua Zhang, Siyu Wu, Shuai Yue, Jianlong Sun, Youfeng Yu, Keke Yi, Shouchuang Wang, Ze Wang, Jing Li","doi":"10.1016/j.xplc.2025.101349","DOIUrl":"10.1016/j.xplc.2025.101349","url":null,"abstract":"","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101349"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281216/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144040421","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}

{"title":"Smart agriculture in Asia.","authors":"Fahui Yuan, Ricardo Ospina, Anand Babu Perumal, Noboru Noguchi, Yong He, Yufei Liu","doi":"10.1016/j.xplc.2025.101377","DOIUrl":"10.1016/j.xplc.2025.101377","url":null,"abstract":"<p><p>Faced with a shortage of agricultural land and a changing climate, Asia urgently needs to focus on smart agriculture to meet the food demands of an increasing population. In recent years, advances in information technology and governmental support have promoted the rapid development of smart agriculture in Asia. This study provides a comprehensive review of the progress of smart agriculture in Asia. First, using bibliometrics, we conduct a comprehensive analysis of Asian smart-agriculture research in terms of countries, institutions, and keywords. Second, we investigate innovative technologies used in smart agriculture and provide a systematic summary of agricultural production in Asia, from breeding to harvest. In addition, we conduct qualitative and quantitative assessments of smart-agriculture policies across Asia and present cutting-edge solutions to key challenges such as climate change, labor shortage, and water scarcity. Currently, Asian smart-agriculture policies are insufficient in areas such as risk prevention and control, international cooperation, and standardization. Accordingly, future efforts may focus on enhancing data security and standardization to promote the global development and popularization of smart agriculture. Finally, we discuss trends and challenges that need to be considered and addressed in the future. This review aims to analyze the technical characteristics and application status of smart agriculture in Asia and to provide resources for researchers and policy makers.</p>","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101377"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281225/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144086921","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}

{"title":"Chromatin accessibility dynamics and transcriptional regulatory networks underlying the primary nitrogen response in rice roots.","authors":"Wenhui Li, Xinxin Zhu, Junjiao Yang, Xiangyu Zhou, Luchang Ming, Ling Yang, Jiacheng Li, Zengdong Tan, Chunjiao Xia, Dujun Wang, Xingbing Xu, Zhanxiang Zong, Hu Zhao, Meng Yang, Lizhong Xiong, Xingming Lian, Weibo Xie","doi":"10.1016/j.xplc.2025.101392","DOIUrl":"10.1016/j.xplc.2025.101392","url":null,"abstract":"<p><p>Nitrogen (N) is essential for rice growth; however, the transcriptional regulation of the primary nitrogen response (PNR), characterized by the rapid upregulation of N uptake and assimilation genes upon N resupply, remains poorly understood. This study investigated the dynamics of the PNR in the roots of two rice cultivars (Zhenshan 97 and Nipponbare) via time-series Assay for Transposase-Accessible Chromatin using sequencing and RNA sequencing analyses within 2 h of ammonium nitrate resupply. Regulatory regions responsive to N induction were precisely identified. Coordinated and cascading changes in chromatin accessibility and gene expression were observed, with chromatin state frequently preceding transcriptional changes. Integrative analysis of expression-chromatin accessibility associations revealed a redundant N-responsive regulatory network. OsLBD38 and OsLBD39, identified as early-response regulators, transcriptionally suppress nitrate reductases while enhancing nitrite reductases; they may function as metabolic safeguarders to prevent nitrite accumulation. OsbZIP23 was identified as a novel regulator directly binding to the promoters of N uptake and metabolism genes, regulating genes in patterns opposite to LBD-regulated genes, suggesting a complex regulatory interplay. Cross-species comparisons with Arabidopsis highlighted the conserved N-responsive regulatory roles of these hub regulators and their targets. Comparative analyses between cultivars revealed expression divergence and genetic differentiation in N-responsive genes, implying indica/japonica-specific adaptations. Furthermore, deep learning predictions of chromatin accessibility between cultivars indicated that expression variation in N uptake and metabolism genes is primarily influenced by trans-acting regulatory factors. These findings provide a comprehensive view of the dynamic regulatory landscape governing the PNR in rice.</p>","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101392"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281222/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144227594","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}

{"title":"Dual roles of SOS1: Na⁺ extrusion and vacuolar compartmentation.","authors":"Yuting Qi, Quan-Sheng Qiu","doi":"10.1016/j.xplc.2025.101423","DOIUrl":"10.1016/j.xplc.2025.101423","url":null,"abstract":"","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101423"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281214/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144340637","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}

{"title":"Genetic and genomic insights into dichogamy in Zingiberaceae.","authors":"Shanshan Chen, Xiaochang Peng, Ziyan Xie, Mofan Zhang, Aodan Huang, Weibin Wang, Guisheng Xiang, Kaiquan Zhang, Ranran Gao, Baozhong Duan, Wei Sun, Yuanhong Fan, Shilin Chen, Zhichao Xu","doi":"10.1016/j.xplc.2025.101352","DOIUrl":"10.1016/j.xplc.2025.101352","url":null,"abstract":"","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101352"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281188/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144057692","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}

{"title":"UPL3 promotes BZR1 degradation, growth arrest, and seedling survival under starvation stress in Arabidopsis.","authors":"Zhenzhen Zhang, Hongliang Zhang, Lei Feng, Antong Wang, Zijie Lin, Cunyi Tan, Efren Gonzalez, Tarabryn Grismer, Shou-Ling Xu, Zhi-Yong Wang","doi":"10.1016/j.xplc.2025.101389","DOIUrl":"10.1016/j.xplc.2025.101389","url":null,"abstract":"<p><p>Sugar-mediated regulation of hormone signaling is crucial for optimizing growth under normal conditions and ensuring survival during environmental stress. Previous studies have shown that sugar starvation induces the degradation of BRASSINAZOLE RESISTANT 1 (BZR1), the master transcription factor of the brassinosteroid (BR) signaling pathway, thereby inhibiting growth. However, the molecular mechanism linking sugar signaling to BZR1 degradation remains unknown. To identify proteins that mediate starvation-induced BZR1 degradation, we performed a quantitative proteomic analysis of the BZR1 interactome under starvation conditions and identified UBIQUITIN PROTEIN LIGASE 3 (UPL3) as a sugar-regulated protein that promotes BZR1 degradation and regulates growth and survival in response to sugar availability. upl3 mutants showed increased BZR1 accumulation and larger seedling size compared to the wild type under sugar-limiting conditions, but not when grown on sugar-containing medium, which indicates that UPL3 mediates BZR1 degradation and growth inhibition under sugar-limited conditions. Although upl3 mutations promoted growth under short-term starvation, they substantially reduced survival under long-term starvation. The enhanced growth phenotype of upl3 was also observed when target of rapamycin (TOR) was inactivated, but not when BR biosynthesis was blocked, suggesting that UPL3 acts downstream of sugar-TOR signaling to regulate BZR1 degradation. Furthermore, UPL3 protein levels increased post-transcriptionally in response to starvation and TOR inhibition, and decreased upon sugar treatment. Our study identifies UPL3 as a key molecular link between sugar signaling and BR signaling. We propose that sugar-TOR signaling inhibits UPL3 to promote BZR1 accumulation and growth, thereby optimizing plant growth and survival in response to sugar availability.</p>","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101389"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281193/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183017","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}

{"title":"An InDel insertion in the promoter of a UDP-ᴅ-glucuronate 4-epimerase 1 gene enhances maize resistance to Fusarium ear rot.","authors":"Chaopei Dong, Yabin Wu, Jingyang Gao, Yunxia Song, Zhaokun Wu, Zhao Wang, Jianju He, Qian Yu, Zhonghuan Zhao, Mengya Cao, Ronghui Zhang, Weibin Song, Xuecai Zhang, Pei Jing, Doudou Sun, Huiyong Zhang, Zijian Zhou, Jiafa Chen, Jianyu Wu","doi":"10.1016/j.xplc.2025.101380","DOIUrl":"10.1016/j.xplc.2025.101380","url":null,"abstract":"<p><p>Fusarium ear rot (FER), caused by Fusarium verticillioides, results in substantial yield losses and poses a significant threat to maize production worldwide. However, the genetic basis of FER resistance remains poorly understood. Utilizing QTL-seq and association analysis, we identified a gene encoding UDP-ᴅ-glucuronate 4-epimerase 1 (ZmGAE1). A 141-base pair insertion was revealed as the natural functional variation in the promoter of ZmGAE1, which decreases its expression and enhances resistance to FER. Functional validation confirmed that ZmGAE1 acts as a negative regulator of maize resistance to FER. Notably, reduced ZmGAE1 accumulation not only improved FER resistance but also lowered fumonisin content. This effect was attributed to increased cell density within the down-placenta chalaza region, accompanied by the accumulation of galacturonic acid and pectin. Crucially, lines lacking ZmGAE1 exhibited no adverse effects on key agronomic traits and showed resistance to multiple diseases, including maize stalk rot, southern leaf blight, and seed rot. These findings highlight ZmGAE1 as a promising candidate for improving FER resistance in maize, offering a novel approach for crop protection and sustainable agriculture.</p>","PeriodicalId":52373,"journal":{"name":"Plant Communications","volume":" ","pages":"101380"},"PeriodicalIF":9.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12281194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144112375","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}