Nature PlantsPub Date : 2025-03-26DOI: 10.1038/s41477-025-01944-8
Sylvia R. Silveira, Loann Collet, Sahil M. Haque, Luc Lapierre, Agnieszka Bagniewska-Zadworna, Richard S. Smith, Frederick P. Gosselin, Anne-Lise Routier-Kierzkowska, Daniel Kierzkowski
{"title":"Mechanical interactions between tissue layers underlie plant morphogenesis","authors":"Sylvia R. Silveira, Loann Collet, Sahil M. Haque, Luc Lapierre, Agnieszka Bagniewska-Zadworna, Richard S. Smith, Frederick P. Gosselin, Anne-Lise Routier-Kierzkowska, Daniel Kierzkowski","doi":"10.1038/s41477-025-01944-8","DOIUrl":"https://doi.org/10.1038/s41477-025-01944-8","url":null,"abstract":"<p>Differential growth between tissues generates mechanical conflicts influencing organogenesis in plants. Here we use the anther, the male floral reproductive organ, as a model system to understand how cell dynamics and tissue-scale mechanics control 3D morphogenesis of a complex shape. Combining deep live-cell imaging, growth analysis, osmotic treatments, genetics and mechanical modelling, we show that localized expansion of internal cells actively drives anther lobe outgrowth, while the epidermis stretches in response. At later stages, mechanical load is transferred to the sub-epidermal layer (endothecium), contributing to proper organ shape. We propose the concept of ‘inflation potential’, encapsulating mechanical and anatomical features causing differential growth. Our data emphasize the active mechanical role of inner tissue in controlling both organ shape acquisition and cell dynamics in outer layers.</p>","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"23 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702859","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}
Nature PlantsPub Date : 2025-03-25DOI: 10.1038/s41477-025-01958-2
Yulin Yan, Bolun Li, Benjamin Dechant, Mingzhu Xu, Xiangzhong Luo, Sai Qu, Guofang Miao, Jiye Leng, Rong Shang, Lei Shu, Chongya Jiang, Han Wang, Sujong Jeong, Youngryel Ryu, Jing M. Chen
{"title":"Plant traits shape global spatiotemporal variations in photosynthetic efficiency","authors":"Yulin Yan, Bolun Li, Benjamin Dechant, Mingzhu Xu, Xiangzhong Luo, Sai Qu, Guofang Miao, Jiye Leng, Rong Shang, Lei Shu, Chongya Jiang, Han Wang, Sujong Jeong, Youngryel Ryu, Jing M. Chen","doi":"10.1038/s41477-025-01958-2","DOIUrl":"https://doi.org/10.1038/s41477-025-01958-2","url":null,"abstract":"<p>Photosynthetic efficiency (PE) quantifies the fraction of absorbed light used in photochemistry to produce chemical energy during photosynthesis and is essential for understanding ecosystem productivity and the global carbon cycle, particularly under conditions of vegetation stress. However, nearly 60% of the global spatiotemporal variance in terrestrial PE remains unexplained. Here we integrate remote sensing and eco-evolutionary optimality theory to derive key plant traits, alongside explainable machine learning and global eddy covariance observations, to uncover the drivers of daily PE variations. Incorporating plant traits into our model increases the explained daily PE variance from 36% to 80% for C<sub>3</sub> vegetation and from 54% to 84% for C<sub>4</sub> vegetation compared with using climate data alone. Key plant traits—including chlorophyll content, leaf longevity and leaf mass per area—consistently emerge as important factors across global biomes and temporal scales. Water availability and light conditions are also critical in regulating PE, underscoring the need for an integrative approach that combines plant traits with climatic factors. Overall, our findings demonstrate the potential of remote sensing and eco-evolutionary optimality theory to capture principal PE drivers, offering valuable tools for more accurately predicting ecosystem productivity and improving Earth system models under climate change.</p>","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"27 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695620","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}
Nature PlantsPub Date : 2025-03-25DOI: 10.1038/s41477-025-01961-7
Yuan Su, Yong Yi, Shengchao Ge, Zi Wang, Zhangyu Wei, Xueliang Liu, Chao Zhang, Qingjun Xie, Haifeng Wang, Yangwen Qian, Bin Yu, Yunfeng Liu
{"title":"Circular RNAs derived from MIR156D promote rice heading by repressing transcription elongation of pri-miR156d through R-loop formation","authors":"Yuan Su, Yong Yi, Shengchao Ge, Zi Wang, Zhangyu Wei, Xueliang Liu, Chao Zhang, Qingjun Xie, Haifeng Wang, Yangwen Qian, Bin Yu, Yunfeng Liu","doi":"10.1038/s41477-025-01961-7","DOIUrl":"https://doi.org/10.1038/s41477-025-01961-7","url":null,"abstract":"<p>In angiosperms, microRNA156 (miR156) acts as an intrinsic, endogenous developmental timer for the age-dependent transition from the juvenile to the adult phase<sup>1,2,3</sup>. However, the mechanisms modulating the age-dependent expression pattern of miR156 are still poorly understood<sup>4</sup>. In this Article, we report that circular RNAs (ciMIR156Ds) derived from pri-miR156d negatively regulate miR156 levels in an aging-dependent manner in rice. The ciMIR156D levels increase as plants age, which is inversely correlated with the changes of pri-miR156d and miR156 abundance. Consistent with this observation, ciMIR156Ds deficiency caused by a spontaneous mutation increases pri-miR156d and miR156 levels, resulting in a delayed heading phenotype, whereas ciMIR156Ds overexpression has opposite effects, demonstrating that ciMIR156Ds are negative regulators of miR156. We further show that ciMIR156Ds form R-loops with <i>MIR156D</i> at the region where they derive in an aging-dependent manner, which reduces the occupancy of DNA-dependent RNA polymerase II at that location and hence impedes pri-miR156d elongation. These findings reveal a mechanism for regulating heading date by refining the aging-dependent expression of miR156.</p>","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"61 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695762","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}
Nature PlantsPub Date : 2025-03-24DOI: 10.1038/s41477-025-01953-7
Sandya Gunasekara, Pedro Fidelman, Stephen Fletcher, Donald Gardiner, Narelle Manzie, Peta Ashworth, Raquel Tardin-Coelho, Neena Mitter
{"title":"The future of dsRNA-based biopesticides will require global regulatory cohesion","authors":"Sandya Gunasekara, Pedro Fidelman, Stephen Fletcher, Donald Gardiner, Narelle Manzie, Peta Ashworth, Raquel Tardin-Coelho, Neena Mitter","doi":"10.1038/s41477-025-01953-7","DOIUrl":"https://doi.org/10.1038/s41477-025-01953-7","url":null,"abstract":"International regulatory harmonization through consistent regulations and risk assessment guidelines across countries could help to overcome challenges and potential delays in the development and commercialization of double-stranded RNA (dsRNA)-based biopesticides.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"57 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677594","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}
Nature PlantsPub Date : 2025-03-21DOI: 10.1038/s41477-025-01969-z
{"title":"Declining wood density","authors":"","doi":"10.1038/s41477-025-01969-z","DOIUrl":"10.1038/s41477-025-01969-z","url":null,"abstract":"Reduced wood density in natural forests might be an underappreciated risk of climate change. It could promote susceptibility to biotic and abiotic damage by pests, drought or wildfire.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"11 3","pages":"379-379"},"PeriodicalIF":15.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41477-025-01969-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668413","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":"A cell wall-associated kinase phosphorylates NLR immune receptor to negatively regulate resistosome formation","authors":"Chenchen Zhong, Wenli Li, Xinyu Zhang, Dingliang Zhang, Zhiyan Wen, Wen Song, Zhihao Jiang, Zongyu Gao, Hailong Guo, Guozhi Bi, Zhiyong Liu, Dawei Li, Savithramma P. Dinesh-Kumar, Yongliang Zhang","doi":"10.1038/s41477-025-01949-3","DOIUrl":"10.1038/s41477-025-01949-3","url":null,"abstract":"Plants deploy intracellular nucleotide-binding leucine-rich repeats (NLRs) to detect pathogen effectors and initiate immune responses. Although the activation mechanism of some plant NLRs forming resistosomes has been elucidated, whether NLR resistosome assembly is regulated to fine-tune immunity remains enigmatic. Here we used an antiviral coiled coil-nucleotide-binding site–leucine rich repeat, Barley Stripe Resistance 1 (BSR1), as a model and demonstrate that BSR1 is phosphorylated. Using a proximity labelling approach, we identified a wall-associated kinase-like protein 20 (WAKL20) which negatively regulates BSR1-mediated immune responses by directly phosphorylating the Ser470 residue in the NB-ARC domain of BSR1. Mechanistically, Ser470 phosphorylation results in a steric clash of intramolecular domains of BSR1, thereby compromising BSR1 oligomerization. The phosphorylation site is conserved among multiple plant NLRs and our results show that WAKL20 participates in other NLR-mediated immune responses besides BSR1. Together, our data reveal phosphorylation as a mechanism for modulating plant resistosome assembly, and provide new insight into NLR-mediated plant immunity. The discovery of the resistosome was a milestone in plant immunity. Here, Zhong et al. identify a kinase that phosphorylates the NLR, and reveal how this kinase regulates resistosome assembly to fine-tune immune responses.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"11 3","pages":"561-579"},"PeriodicalIF":15.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143665916","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 auxin–PLETHORA 5 module regulates wood fibre development in Populus tomentosa","authors":"Shuai Liu, Xiaokang Fu, Yue Wang, Xuelian Du, Lianjia Luo, Dong Chen, Chunzhao Liu, Jian Hu, Changjian Fa, Rongling Wu, Laigeng Li, Keming Luo, Changzheng Xu","doi":"10.1038/s41477-025-01931-z","DOIUrl":"10.1038/s41477-025-01931-z","url":null,"abstract":"Auxin, as a vital phytohormone, is enriched in the vascular cambium, playing a crucial role in regulating wood formation in trees. While auxin’s influence on cambial stem cells is well established, the molecular mechanisms underlying the auxin-directed development of cambial derivatives, such as wood fibres, remain elusive in forest trees. Here we identified a transcription factor, AINTEGUMENTA-like 5 (AIL5)/PLETHORA 5 (PLT5) from Populus tomentosa, that is specifically activated by auxin signalling within the vascular cambium. PLT5 regulated both cell expansion and cell wall thickening in wood fibres. Genetic analysis demonstrated that PLT5 is essential for mediating the action of auxin signalling on wood fibre development. Remarkably, PLT5 specifically inhibits the onset of fibre cell wall thickening by directly repressing SECONDARY WALL-ASSOCIATED NAC DOMAIN 1 (SND1) genes. Our findings reveal a sophisticated auxin–PLT5 signalling pathway that finely tunes the development of wood fibres by controlling cell wall thickening. The study reveals that PLETHORA 5, a transcription factor activated by auxin signalling in the vascular cambium, regulates cell expansion and cell wall thickening of fibres by directly repressing SND1 genes during wood formation in Populus tomentosa.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"11 3","pages":"580-594"},"PeriodicalIF":15.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653485","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}
Nature PlantsPub Date : 2025-03-18DOI: 10.1038/s41477-025-01943-9
{"title":"A Hordeum I-genome sequence provides insight into how plants adapt to salt–alkali stress","authors":"","doi":"10.1038/s41477-025-01943-9","DOIUrl":"10.1038/s41477-025-01943-9","url":null,"abstract":"Understanding the genetic basis of valuable crop wild relatives (CWRs) could enable their use in expanding crop diversity and enhancing production. The first reference genome for Hordeum I-genome CWRs unravels unique evolutionary adaptations to salt–alkali stress, highlighting their potential applications in wheat and barley breeding programmes.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"11 3","pages":"392-393"},"PeriodicalIF":15.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641103","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}
Nature PlantsPub Date : 2025-03-18DOI: 10.1038/s41477-025-01970-6
Catherine Walker
{"title":"To plant or not to plant","authors":"Catherine Walker","doi":"10.1038/s41477-025-01970-6","DOIUrl":"10.1038/s41477-025-01970-6","url":null,"abstract":"","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"11 3","pages":"382-382"},"PeriodicalIF":15.8,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641102","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}