New Phytologist最新文献

{"title":"A genome-scale metabolic reconstruction of soybean and Bradyrhizobium diazoefficiens reveals the cost–benefit of nitrogen fixation","authors":"Bethany L. Holland,&nbsp;Megan L. Matthews,&nbsp;Pedro Bota,&nbsp;Lee J. Sweetlove,&nbsp;Stephen P. Long,&nbsp;George C. diCenzo","doi":"10.1111/nph.19203","DOIUrl":"https://doi.org/10.1111/nph.19203","url":null,"abstract":"<p>\u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19203","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41081738","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":"How deep should we go to understand roots at the top of the world?","authors":"S?ren E. Weber,&nbsp;Colleen M. Iversen","doi":"10.1111/nph.19220","DOIUrl":"https://doi.org/10.1111/nph.19220","url":null,"abstract":"<p>Informed by vegetation maps across high-latitude landscapes, terrestrial biosphere models are a tool that can be used to predict changes in the composition and function of vegetation, above- and belowground, across the land surface in response to changing environmental conditions. However, terrestrial biosphere models represent vegetation characteristics at a finer grain than mapped vegetation communities. These models group plant species that colonize high-latitude biomes by their functional trait variation into plant functional types (PFTs) that characterize the impacts of plant species on, and their response to changes in, their surrounding abiotic and biotic environment. Blume-Werry <i>et al</i>. (<span>2023</span>) found that vegetation mapping units that broadly incorporate multiple plant species and functional types are too coarse, or encompass too much biological variation, to fully capture belowground plant trait variation. However, they did find that they could successfully cluster rooting depth observations into ‘Root Profile Types’, suggesting that modeling PFTs may be a useful tool to characterize above- and belowground linkages across high-latitude environments.</p><p>In many arctic and boreal ecosystems, plant roots are constrained by permafrost to a shallow ‘active layer’ of soil that thaws progressively over the course of each growing season. Blume-Werry <i>et al</i>. (<span>2023</span>) identified active layer thickness and the closely related minimum temperature of the coldest month as two of three main abiotic drivers constraining rooting depth distribution in their analysis (a third, cation exchange capacity, is more indicative of nutrient availability than a physical impediment). Furthermore, waterlogging can limit root distribution to surface, oxic soils, and can lead to a thick layer of poorly decomposed, organic peat at the soil surface with different characteristics from mineral soils (Fig. 1; Walker <i>et al</i>., <span>2003</span>). Indeed, Blume-Werry <i>et al</i>. (<span>2023</span>) found that despite similarities in species composition between wetland and graminoid tundra in CAVM mapping units, rooting depth in wetland tundra was shallower than graminoid tundra. This may indicate that waterlogged conditions can constrain rooting depth distribution, even in vegetation communities dominated by species with aerenchymatous roots. Ranging from rootless mosses and plant-like lichens to vascular graminoids and shrubs, and deciduous and evergreen trees, PFTs inhabiting the arctic tundra and boreal forest vary in their rooting depth distributions, their interactions with soil microbiota, and their ratio of belowground to aboveground tissues (e.g. root : shoot ratio; Chapin <i>et al</i>., <span>1996</span>). However, terrestrial biosphere models have often neglected the unique characteristics of the species that colonize high-latitude biomes, especially belowground (Iversen <i>et al</i>., <span>2015</span>, <span>2018</sp","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19220","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41082244","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":"SlTCP24 and SlTCP29 synergistically regulate compound leaf development through interacting with SlAS2 and activating transcription of SlCKX2 in tomato","authors":"Guoyu Hu,&nbsp;Danqiu Zhang,&nbsp;Dan Luo,&nbsp;Wenhui Sun,&nbsp;Rijin Zhou,&nbsp;Zonglie Hong,&nbsp;Shoaib Munir,&nbsp;Zhibiao Ye,&nbsp;Changxian Yang,&nbsp;Junhong Zhang,&nbsp;Taotao Wang","doi":"10.1111/nph.19221","DOIUrl":"https://doi.org/10.1111/nph.19221","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>The complexity of compound leaves results primarily from the leaflet initiation and arrangement during leaf development. However, the molecular mechanism underlying compound leaf development remains a central research question.</li>\u0000 \u0000 \u0000 <li>SlTCP24 and SlTCP29, two plant-specific transcription factors with the conserved TCP motif, are shown here to synergistically regulate compound leaf development in tomato. When both of them were knocked out simultaneously, the number of leaflets significantly increased, and the shape of the leaves became more complex. SlTCP24 and SlTCP29 could form both homodimers and heterodimers, and such dimerization was impeded by the leaf polarity regulator SlAS2, which interacted with SlTCP24 and SlTCP29.</li>\u0000 \u0000 \u0000 <li>SlTCP24 and SlTCP29 could bind to the TCP-binding <i>cis</i>-element of the <i>SlCKX2</i> promoter and activate its transcription. Transgenic plants with <i>SlTCP24</i> and <i>SlTCP29</i> double-gene knockout had a lowered transcript level of <i>SlCKX2</i> and an elevated level of cytokinin.</li>\u0000 \u0000 \u0000 <li>This work led to the identification of two key regulators of tomato compound leaf development and their targeted genes involved in cytokinin metabolic pathway. A model of regulation of compound leaf development was proposed based on observations of this study.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41087812","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":"Epigenomic divergence correlates with sequence polymorphism in Arabidopsis paralogs","authors":"Sunil K. Kenchanmane Raju,&nbsp;Mariele Lensink,&nbsp;Daniel J. Kliebenstein,&nbsp;Chad Niederhuth,&nbsp;Grey Monroe","doi":"10.1111/nph.19227","DOIUrl":"https://doi.org/10.1111/nph.19227","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.19227","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41087810","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":"Allelochemicals and soil microorganisms jointly mediate sex-specific belowground interactions in dioecious Populus cathayana","authors":"Zhichao Xia,&nbsp;Yue He,&nbsp;Helena Korpelainen,&nbsp;Ülo Niinemets,&nbsp;Chunyang Li","doi":"10.1111/nph.19224","DOIUrl":"10.1111/nph.19224","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>Little is known about how sex differences in root zone characteristics, such as contents of allelochemicals and soil microbial composition, mediate intra- and intersexual interactions in dioecious plants.</li>\u0000 \u0000 \u0000 <li>We examined the processes and mechanisms of sex-specific belowground interactions mediated by allelochemicals and soil microorganisms in <i>Populus cathayana</i> females and males in replicated 30-yr-old experimental stands <i>in situ</i> and in a series of controlled experiments.</li>\u0000 \u0000 \u0000 <li>Female roots released a greater amount and more diverse phenolic allelochemicals into the soil environment, resulting in growth inhibition of the same sex neighbors and deterioration of the community of soil microorganisms. When grown with males, the growth of females was consistently enhanced, especially the root growth. Compared with female monocultures, the presence of males reduced the total phenolic accumulation in the soil, resulting in a shift from allelopathic inhibition to chemical facilitation. This association was enhanced by a favorable soil bacterial community and increased bacterial diversity, and it induced changes in the orientation of female roots.</li>\u0000 \u0000 \u0000 <li>Our study highlighted a novel mechanism that enhances female performance by males through alterations in the allelochemical content and soil microbial composition. The possibility to improve productivity by chemical mediation provides novel opportunities for managing plantations of dioecious plants.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10416026","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 CAP superfamily protein PsCAP1 secreted by Phytophthora triggers immune responses in Nicotiana benthamiana through a leucine-rich repeat receptor-like protein","authors":"Haibin Jiang,&nbsp;Yeqiang Xia,&nbsp;Sicong Zhang,&nbsp;Zhichao Zhang,&nbsp;Hui Feng,&nbsp;Qi Zhang,&nbsp;Xi Chen,&nbsp;Junhua Xiao,&nbsp;Sen Yang,&nbsp;Mengzhu Zeng,&nbsp;Zhaodan Chen,&nbsp;Haibing Ouyang,&nbsp;Xinyi He,&nbsp;Guangzheng Sun,&nbsp;Jinbin Wu,&nbsp;Suomeng Dong,&nbsp;Wenwu Ye,&nbsp;Zhenchuan Ma,&nbsp;Yan Wang,&nbsp;Yuanchao Wang","doi":"10.1111/nph.19194","DOIUrl":"https://doi.org/10.1111/nph.19194","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 </p><ul>\u0000 \u0000 <li>The role of cysteine-rich secretory proteins, antigen 5, and pathogenesis-related 1 (CAP) superfamily proteins in the innate immune responses of mammals is well characterized. However, the biological function of CAP superfamily proteins in plant–microbe interactions is poorly understood.</li>\u0000 \u0000 <li>We used proteomics and transcriptome analyses to dissect the apoplastic effectors secreted by the oomycete <i>Phytophthora sojae</i> during early infection of soybean leaves. By transiently expressing these effectors in <i>Nicotiana benthamiana</i>, we identified PsCAP1, a novel type of secreted CAP protein that triggers immune responses in multiple solanaceous plants including <i>N. benthamiana</i>. This secreted CAP protein is conserved among oomycetes, and multiple PsCAP1 homologs can be recognized by <i>N. benthamiana</i>.</li>\u0000 \u0000 <li>PsCAP1-triggered immune responses depend on the N-terminal immunogenic fragment (aa 27–151). Pretreatment of <i>N. benthamiana</i> with PsCAP1 or the immunogenic fragment increases plant resistance against <i>Phytophthora</i>. The recognition of PsCAP1 and different homologs requires the leucine-rich repeat receptor-like protein RCAP1, which associates with two central receptor-like kinases BRI1-associated receptor kinase 1 (BAK1) and suppressor of BIR1-1 (SOBIR1) <i>in planta</i>.</li>\u0000 \u0000 <li>These findings suggest that the CAP-type apoplastic effectors act as an important player in plant–microbe interactions that can be perceived by plant membrane-localized receptor to activate plant resistance.</li>\u0000 </ul>\u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41081828","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":"Intraspecific variation in realized dispersal probability and host quality shape nectar microbiomes","authors":"Jacob S. Francis,&nbsp;Tobias G. Mueller,&nbsp;Rachel L. Vannette","doi":"10.1111/nph.19195","DOIUrl":"https://doi.org/10.1111/nph.19195","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>Epiphytic microbes frequently affect plant phenotype and fitness, but their effects depend on microbe abundance and community composition. Filtering by plant traits and deterministic dispersal-mediated processes can affect microbiome assembly, yet their relative contribution to predictable variation in microbiome is poorly understood.</li>\u0000 \u0000 \u0000 <li>We compared the effects of host-plant filtering and dispersal on nectar microbiome presence, abundance, and composition. We inoculated representative bacteria and yeast into 30 plants across four phenotypically distinct cultivars of <i>Epilobium canum</i>. We compared the growth of inoculated communities to openly visited flowers from a subset of the same plants.</li>\u0000 \u0000 \u0000 <li>There was clear evidence of host selection when we inoculated flowers with synthetic communities. However, plants with the highest microbial densities when inoculated did not have the highest microbial densities when openly visited. Instead, plants predictably varied in the presence of bacteria, which was correlated with pollen receipt and floral traits, suggesting a role for deterministic dispersal.</li>\u0000 \u0000 \u0000 <li>These findings suggest that host filtering could drive plant microbiome assembly in tissues where species pools are large and dispersal is high. However, deterministic differences in microbial dispersal to hosts may be equally or more important when microbes rely on an animal vector, dispersal is low, or arrival order is important.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41087758","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":"Spliceosomal protein U2B″ delays leaf senescence by enhancing splicing variant JAZ9β expression to attenuate jasmonate signaling in Arabidopsis","authors":"Qi Yang,&nbsp;Shuya Tan,&nbsp;Hou-Ling Wang,&nbsp;Ting Wang,&nbsp;Jie Cao,&nbsp;Hairong Liu,&nbsp;Yueqi Sha,&nbsp;Yaning Zhao,&nbsp;Xinli Xia,&nbsp;Hongwei Guo,&nbsp;Zhonghai Li","doi":"10.1111/nph.19198","DOIUrl":"https://doi.org/10.1111/nph.19198","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>\u0000 \u0000 <p>The regulatory framework of leaf senescence is gradually becoming clearer; however, the fine regulation of this process remains largely unknown.</p>\u0000 </li>\u0000 \u0000 \u0000 <li>\u0000 \u0000 <p>Here, genetic analysis revealed that U2 small nuclear ribonucleoprotein B (U2B″), a component of the spliceosome, is a negative regulator of leaf senescence. Mutation of U2B″ led to precocious leaf senescence, whereas overexpression of <i>U2B″</i> extended leaf longevity. Transcriptome analysis revealed that the jasmonic acid (JA) signaling pathway was activated in the <i>u2b″</i> mutant. U2B″ enhances the generation of splicing variant JASMONATE ZIM-DOMAIN 9β (JAZ9β) with an intron retention in the Jas motif, which compromises its interaction with CORONATINE INSENSITIVE1 and thus enhances the stability of JAZ9β protein. Moreover, JAZ9β could interact with MYC2 and obstruct its activity, thereby attenuating JA signaling. Correspondingly, overexpression of <i>JAZ9β</i> rescued the early senescence phenotype of the <i>u2b″</i> mutant.</p>\u0000 </li>\u0000 \u0000 \u0000 <li>\u0000 \u0000 <p>Furthermore, JA treatment promoted expression of U2B″ that was found to be a direct target of MYC2. Overexpression of <i>MYC2</i> in the <i>u2b″</i> mutant resulted in a more pronounced premature senescence than that in wild-type plants.</p>\u0000 </li>\u0000 \u0000 \u0000 <li>\u0000 \u0000 <p>Collectively, our findings reveal that the spliceosomal protein U2B″ fine-tunes leaf senescence by enhancing the expression of JAZ9β and thereby attenuating JA signaling.</p>\u0000 </li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41087606","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":"Orosomucoid proteins limit endoplasmic reticulum stress in plants","authors":"Ling-Yan Wang,&nbsp;Jian Li,&nbsp;Benqiang Gong,&nbsp;Rui-Hua Wang,&nbsp;Yi-Li Chen,&nbsp;Jian Yin,&nbsp;Chang Yang,&nbsp;Jia-Ting Lin,&nbsp;Hao-Zhuo Liu,&nbsp;Yubing Yang,&nbsp;Jianfeng Li,&nbsp;Chunyu Li,&nbsp;Nan Yao","doi":"10.1111/nph.19200","DOIUrl":"https://doi.org/10.1111/nph.19200","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>Sphingolipids are cell membrane components and signaling molecules that induce endoplasmic reticulum (ER) stress responses, but the underlying mechanism is unknown. Orosomucoid proteins (ORMs) negatively regulate serine palmitoyltransferase activity, thus helping maintain proper sphingolipid levels in humans, yeast, and plants.</li>\u0000 \u0000 \u0000 <li>In this report, we explored the roles of ORMs in regulating ER stress in <i>Arabidopsis thaliana</i>.</li>\u0000 \u0000 \u0000 <li>Loss of ORM1 and ORM2 function caused constitutive activation of the unfolded protein response (UPR), as did treatment with the ceramide synthase inhibitor Fumonisin B1 (FB1) or ceramides. FB1 treatment induced the transcription factor bZIP28 to relocate from the ER membrane to the nucleus. The transcription factor WRKY75 positively regulates the UPR and physically interacted with bZIP28. We also found that the <i>orm</i> mutants showed impaired ER-associated degradation (ERAD), blocking the degradation of misfolded MILDEW RESISTANCE LOCUS-O 12 (MLO-12). ORM1 and ORM2 bind to EMS-MUTAGENIZED BRI1 SUPPRESSOR 7 (EBS7), a plant-specific component of the Arabidopsis ERAD complex, and regulate its stability. These data strongly suggest that ORMs in the ER membrane play vital roles in the UPR and ERAD pathways to prevent ER stress in Arabidopsis.</li>\u0000 \u0000 \u0000 <li>Our results reveal that ORMs coordinate sphingolipid homeostasis with ER quality control and play a role in stress responses.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41087603","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":"Epigenetic regulation of female germline development through ERECTA signaling pathway","authors":"Youmei Huang,&nbsp;Liping Liu,&nbsp;Mengnan Chai,&nbsp;Han Su,&nbsp;Suzhuo Ma,&nbsp;Kaichuang Liu,&nbsp;Yaru Tian,&nbsp;Zhuangyuan Cao,&nbsp;Xinpeng Xi,&nbsp;Wenhui Zhu,&nbsp;Jingang Qi,&nbsp;Ravishankar Palanivelu,&nbsp;Yuan Qin,&nbsp;Hanyang Cai","doi":"10.1111/nph.19217","DOIUrl":"https://doi.org/10.1111/nph.19217","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>Germline development is a key step in sexual reproduction. Sexual plant reproduction begins with the formation of haploid spores by meiosis of megaspore mother cells (MMCs). Although many evidences, directly or indirectly, show that epigenetics plays an important role in MMC specification, how it controls the commitment of the MMC to downstream stages of germline development is still unclear.</li>\u0000 \u0000 \u0000 <li>Electrophoretic mobility shift assay (EMSA), western blot, immunofluorescence, and chromatin immunoprecipitation coupled with quantitative PCR analyses were performed. Genetic interactions between BZR1 transcription factor family and the SWR1-SDG2-ER pathway in the control of female germline development were further studied.</li>\u0000 \u0000 \u0000 <li>The present findings showed in Arabidopsis that two epigenetic factors, the chromatin remodeling complex SWI2/SNF2-RELATED 1 (SWR1) and a writer for H3K4me3 histone modification SET DOMAIN GROUP 2 (SDG2), genetically interact with the ERECTA (ER) receptor kinase signaling pathway and regulate female germline development by restricting the MMC cell fate to a single cell in the ovule primordium and ensure that only that single cell undergoes meiosis and subsequent megaspore degeneration. We also showed that SWR1-SDG2-ER signaling module regulates female germline development by promoting the protein accumulation of BZR1 transcription factor family on the promoters of primary miRNA processing factors, <i>HYPONASTIC LEAVES 1</i> (<i>HYL1</i>), <i>DICER-LIKE 1</i> (<i>DCL1</i>), and <i>SERRATE</i> (<i>SE</i>) to activate their expression.</li>\u0000 \u0000 \u0000 <li>Our study elucidated a Gene Regulation Network that provides new insights for understanding how epigenetic factors and receptor kinase signaling pathways function in concert to control female germline development in Arabidopsis.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":null,"pages":null},"PeriodicalIF":9.4,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41087608","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}