Plant Cell最新文献_第6页

Small protein, big effects: ENOD93 alters mitochondrial ATP production to favor nitrogen assimilation in plants. 小蛋白，大作用：ENOD93 改变线粒体 ATP 的产生，有利于植物的氮同化。

IF 1 1区生物学

Plant Cell Pub Date : 2024-11-02 DOI: 10.1093/plcell/koae247

Renuka Kolli

引用次数: 0

Regulating programmed cell death in plant cells: Intracellular acidification plays a pivotal role together with calcium signaling. 调节植物细胞中的 PCD：细胞内酸化与钙信号一起发挥着关键作用。

IF 1 1区生物学

Plant Cell Pub Date : 2024-11-02 DOI: 10.1093/plcell/koae245

Maurice Bosch, Vernonica Franklin-Tong

引用次数: 0

From the archives: Epidermal affairs-EVER links floral scent with cuticular waxes, while SPL9 and DEWAX connect them to diurnal regulation, and FIDDLEHEAD takes on a function in the epidermis. 来自档案：表皮事务 - EVER 将花香与角质蜡联系起来，而 SPL9 和 DEWAX 则将它们与昼夜调节联系起来，FIDDLEHEAD 在表皮中发挥着作用。

IF 1 1区生物学

Plant Cell Pub Date : 2024-11-02 DOI: 10.1093/plcell/koae231

Christian Damian Lorenzo

引用次数: 0

FERONIA regulates salt tolerance in Arabidopsis by controlling photorespiratory flux. FERONIA通过控制光呼吸通量调节拟南芥的耐盐性。

IF 1 1区生物学

Plant Cell Pub Date : 2024-11-02 DOI: 10.1093/plcell/koae246

Wei Jiang, Zhihao Wang, Yali Li, Xin Liu, Yuying Ren, Chao Li, Shengji Luo, Rahul Mohan Singh, Yan Li, Chanhong Kim, Chunzhao Zhao

{"title":"FERONIA regulates salt tolerance in Arabidopsis by controlling photorespiratory flux.","authors":"Wei Jiang, Zhihao Wang, Yali Li, Xin Liu, Yuying Ren, Chao Li, Shengji Luo, Rahul Mohan Singh, Yan Li, Chanhong Kim, Chunzhao Zhao","doi":"10.1093/plcell/koae246","DOIUrl":"10.1093/plcell/koae246","url":null,"abstract":"Photorespiration is an energetically costly metabolic pathway in plants that responds to environmental stresses. The molecular basis of the regulation of the photorespiratory cycle under stress conditions remains unclear. Here, we discovered that FERONIA (FER) regulates photorespiratory flow under salt stress in Arabidopsis (Arabidopsis thaliana). FER mutation results in hypersensitivity to salt stress, but disruption of ferredoxin-dependent glutamate synthase 1 (GLU1), an enzyme that participates in the photorespiratory pathway by producing glutamate, greatly suppresses fer-4 hypersensitivity to salt stress primarily due to reduced glycine yield. In contrast, disrupting mitochondrial serine hydroxymethyltransferase1 (SHM1), which is supposed to increase glycine levels by hampering the conversion of glycine to serine in the photorespiratory cycle, aggravates fer-4 hypersensitivity to salt stress. Biochemical data show that FER interacts with and phosphorylates SHM1, and this phosphorylation modulates SHM1 stability. Additionally, the production of proline and its intermediate △1-pyrroline-5-carboxylate (P5C), which are both synthesized from glutamate, also contributes to fer-4 hypersensitivity to salt stress. In conclusion, this study elucidates the functional mechanism of FER in regulating salt tolerance by modulating photorespiratory flux, which greatly broadens our understanding of how plants adapt to high salinity.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":"4732-4751"},"PeriodicalIF":10.0,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11530776/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142086142","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}

引用次数: 0

The leucine-rich repeat receptor kinase QSK1 regulates PRR-RBOHD complexes targeted by the bacterial effector HopF2Pto. 富亮氨酸重复受体激酶 QSK1 可调节细菌效应物 HopF2Pto 靶向的 PRR-RBOHD 复合物。

IF 1 1区生物学

Plant Cell Pub Date : 2024-10-21 DOI: 10.1093/plcell/koae267

Yukihisa Goto, Yasuhiro Kadota, Malick Mbengue, Jennifer D Lewis, Hidenori Matsui, Noriko Maki, Bruno Pok Man Ngou, Jan Sklenar, Paul Derbyshire, Arisa Shibata, Yasunori Ichihashi, David S Guttman, Hirofumi Nakagami, Takamasa Suzuki, Frank L H Menke, Silke Robatzek, Darrell Desveaux, Cyril Zipfel, Ken Shirasu

{"title":"The leucine-rich repeat receptor kinase QSK1 regulates PRR-RBOHD complexes targeted by the bacterial effector HopF2Pto.","authors":"Yukihisa Goto, Yasuhiro Kadota, Malick Mbengue, Jennifer D Lewis, Hidenori Matsui, Noriko Maki, Bruno Pok Man Ngou, Jan Sklenar, Paul Derbyshire, Arisa Shibata, Yasunori Ichihashi, David S Guttman, Hirofumi Nakagami, Takamasa Suzuki, Frank L H Menke, Silke Robatzek, Darrell Desveaux, Cyril Zipfel, Ken Shirasu","doi":"10.1093/plcell/koae267","DOIUrl":"10.1093/plcell/koae267","url":null,"abstract":"Plants detect pathogens using cell-surface pattern recognition receptors (PRRs) such as ELONGATION Factor-TU (EF-TU) RECEPTOR (EFR) and FLAGELLIN SENSING 2 (FLS2), which recognize bacterial EF-Tu and flagellin, respectively. These PRRs belong to the leucine-rich repeat receptor kinase (LRR-RK) family and activate the production of reactive oxygen species via the NADPH oxidase RESPIRATORY BURST OXIDASE HOMOLOG D (RBOHD). The PRR-RBOHD complex is tightly regulated to prevent unwarranted or exaggerated immune responses. However, certain pathogen effectors can subvert these regulatory mechanisms, thereby suppressing plant immunity. To elucidate the intricate dynamics of the PRR-RBOHD complex, we conducted a comparative coimmunoprecipitation analysis using EFR, FLS2, and RBOHD in Arabidopsis thaliana. We identified QIAN SHOU KINASE 1 (QSK1), an LRR-RK, as a PRR-RBOHD complex-associated protein. QSK1 downregulated FLS2 and EFR abundance, functioning as a negative regulator of PRR-triggered immunity (PTI). QSK1 was targeted by the bacterial effector HopF2Pto, a mono-ADP ribosyltransferase, reducing FLS2 and EFR levels through both transcriptional and transcription-independent pathways, thereby inhibiting PTI. Furthermore, HopF2Pto transcriptionally downregulated PROSCOOP genes encoding important stress-regulated phytocytokines and their receptor MALE DISCOVERER 1-INTERACTING RECEPTOR-LIKE KINASE 2. Importantly, HopF2Pto requires QSK1 for its accumulation and virulence functions within plants. In summary, our results provide insights into the mechanism by which HopF2Pto employs QSK1 to desensitize plants to pathogen attack.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11641854/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142472550","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}

引用次数: 0

Monogalactosyldiacylglycerol synthase isoforms play diverse roles inside and outside the diatom plastid. 单半乳糖二乙酰甘油合成酶同工酶在硅藻质体内外发挥着不同的作用。

IF 1 1区生物学

Plant Cell Pub Date : 2024-10-09 DOI: 10.1093/plcell/koae275

Nolwenn Guéguen, Yannick Sérès, Félix Cicéron, Valérie Gros, Grégory Si Larbi, Denis Falconet, Etienne Deragon, Siraba D Gueye, Damien Le Moigne, Marion Schilling, Mathilde Cussac, Dimitris Petroutsos, Hanhua Hu, Yangmin Gong, Morgane Michaud, Juliette Jouhet, Juliette Salvaing, Alberto Amato, Eric Maréchal

{"title":"Monogalactosyldiacylglycerol synthase isoforms play diverse roles inside and outside the diatom plastid.","authors":"Nolwenn Guéguen, Yannick Sérès, Félix Cicéron, Valérie Gros, Grégory Si Larbi, Denis Falconet, Etienne Deragon, Siraba D Gueye, Damien Le Moigne, Marion Schilling, Mathilde Cussac, Dimitris Petroutsos, Hanhua Hu, Yangmin Gong, Morgane Michaud, Juliette Jouhet, Juliette Salvaing, Alberto Amato, Eric Maréchal","doi":"10.1093/plcell/koae275","DOIUrl":"10.1093/plcell/koae275","url":null,"abstract":"Diatoms derive from a secondary endosymbiosis event, which occurred when a eukaryotic host cell engulfed a red alga. This led to the formation of a complex plastid enclosed by four membranes: two innermost membranes originating from the red alga chloroplast envelope, and two additional peri- and epiplastidial membranes (PPM, EpM). The EpM is linked to the endoplasmic reticulum (ER). The most abundant membrane lipid in diatoms is monogalactosyldiacylglycerol (MGDG), synthesized by galactosyltransferases called MGDG synthases (MGDs), conserved in photosynthetic eukaryotes and considered to be specific to chloroplast membranes. Similar to angiosperms, a multigenic family of MGDs has evolved in diatoms, but through an independent process. We characterized MGDα, MGDβ and MGDγ in Phaeodactylum tricornutum, combining molecular analyses, heterologous expression in Saccharomyces cerevisiae, and studying overexpressing and CRISPR-Cas9-edited lines. MGDα localizes mainly to thylakoids, MGDβ to the PPM, and MGDγ to the ER and EpM. MGDs have distinct specificities for diacylglycerol, consistent with their localization. Results suggest that MGDα is required for thylakoid expansion under optimal conditions, while MGDβ and MGDγ play roles in plastid and non-plastid membranes and in response to environmental stress. Functional compensation among MGDs likely contributes to diatom resilience under adverse conditions and to their ecological success.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11638560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142392431","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}

引用次数: 0

Brassinosteroid signaling represses ZINC FINGER PROTEIN11 to regulate ovule development in Arabidopsis. 类芸香素信号抑制 ZINC FINGER PROTEIN11 以调节拟南芥的胚珠发育。

IF 1 1区生物学

Plant Cell Pub Date : 2024-10-07 DOI: 10.1093/plcell/koae273

Xin Wang, Jiaxin Liu, Erlei Shang, Amangul Hawar, Toshiro Ito, Bo Sun

{"title":"Brassinosteroid signaling represses ZINC FINGER PROTEIN11 to regulate ovule development in Arabidopsis.","authors":"Xin Wang, Jiaxin Liu, Erlei Shang, Amangul Hawar, Toshiro Ito, Bo Sun","doi":"10.1093/plcell/koae273","DOIUrl":"10.1093/plcell/koae273","url":null,"abstract":"Brassinosteroid (BR) signaling and the C-class MADS-box gene AGAMOUS (AG) play important roles in ovule development in Arabidopsis (Arabidopsis thaliana). However, how BR signaling integrates with AG functions to control the female reproductive process remains elusive. Here, we showed that the regulatory role of BR signaling in proper ovule development is mediated by the transcriptional repressor gene ZINC FINGER PROTEIN 11 (ZFP11), which is a direct target of AG. ZFP11 expression initiates from the placenta upon AG induction and becomes prominent in the funiculus of ovule primordia. Plants harboring zfp11 mutations showed reduced placental length with decreased ovule numbers and some aborted ovules. During ovule development, the transcription factor BRASSINAZOLE-RESISTANT 1 (BZR1), which functions downstream of BR signaling, inhibits ZFP11 expression in the chalaza and nucellus. Weakened BR signaling leads to stunted integuments in ovules, resulting from the direct repression of INNER NO OUTER (INO) and WUSCHEL (WUS) by extended ZFP11 expression in the chalaza and nucellus, respectively. In addition, the zfp11 mutant shows reduced sensitivity to BR biosynthesis inhibitors and can rescue outer integument defects in brassinosteroid insensitive 1 (bri1) mutants. Thus, the precise spatial regulation of ZFP11, which is activated by AG in the placenta and suppressed by BR signaling in the central and distal regions of ovules, is essential for ensuring sufficient ovule numbers and proper ovule formation.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11638486/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142381491","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}

引用次数: 0

The AP2 transcription factor BARE RECEPTACLE regulates floral organogenesis via auxin pathways in woodland strawberry. AP2 转录因子 BARE RECEPTACLE 通过辅助素途径调控林地草莓的花器官发生。

IF 1 1区生物学

Plant Cell Pub Date : 2024-10-04 DOI: 10.1093/plcell/koae270

Rui Lu, Shaoqiang Hu, Jia Feng, Zhongchi Liu, Chunying Kang

{"title":"The AP2 transcription factor BARE RECEPTACLE regulates floral organogenesis via auxin pathways in woodland strawberry.","authors":"Rui Lu, Shaoqiang Hu, Jia Feng, Zhongchi Liu, Chunying Kang","doi":"10.1093/plcell/koae270","DOIUrl":"10.1093/plcell/koae270","url":null,"abstract":"During flower development, different floral organs are formed to ensure fertilization and fruit set. Although the genetic networks underlying flower development are increasingly well understood, less is known about the mechanistic basis in different species. Here, we identified a mutant of woodland strawberry (Fragaria vesca), bare receptacle (bre), which produces flowers with greatly reduced carpels and other floral organs. Genetic analysis revealed that BRE encodes an APETALA2 (AP2) transcription factor. BRE was highly expressed in floral meristems and floral organ primordia. BRE could directly bind the GCC-box motif in the YUCCA (YUC) auxin biosynthesis genes FveYUC4 and FveYUC2 and promote their expression. The yuc4 mutant had fewer floral organs, and the bre yuc4 double mutant had similar numbers of petals and carpels to bre. Auxin homeostasis and distribution were severely disrupted in bre. Although auxin application or FveYUC4 overexpression did not rescue the bre phenotypes, bre was hypersensitive to treatment with the polar auxin transport inhibitor N-1-naphthylphthalamic acid (NPA). In addition, BRE was able to directly bind and regulate the expression of five other auxin pathway genes. Overall, these results demonstrate that BRE is required for floral organogenesis, particularly carpel initiation, and acts through the auxin pathway in strawberry.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":""},"PeriodicalIF":10.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11638484/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375793","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}

引用次数: 0

Plastid retrograde signaling: A developmental perspective. 质体逆行信号：发育视角

IF 1 1区生物学

Plant Cell Pub Date : 2024-10-03 DOI: 10.1093/plcell/koae094

Naresh Loudya, Alice Barkan, Enrique López-Juez

{"title":"Plastid retrograde signaling: A developmental perspective.","authors":"Naresh Loudya, Alice Barkan, Enrique López-Juez","doi":"10.1093/plcell/koae094","DOIUrl":"10.1093/plcell/koae094","url":null,"abstract":"Chloroplast activities influence nuclear gene expression, a phenomenon referred to as retrograde signaling. Biogenic retrograde signals have been revealed by changes in nuclear gene expression when chloroplast development is disrupted. Research on biogenic signaling has focused on repression of Photosynthesis-Associated Nuclear Genes (PhANGs), but this is just one component of a syndrome involving altered expression of thousands of genes involved in diverse processes, many of which are upregulated. We discuss evidence for a framework that accounts for most of this syndrome. Disruption of chloroplast biogenesis prevents the production of signals required to progress through discrete steps in the program of photosynthetic differentiation, causing retention of juvenile states. As a result, expression of PhANGs and other genes that act late during photosynthetic differentiation is not initiated, while expression of genes that act early is retained. The extent of juvenility, and thus the transcriptome, reflects the disrupted process: lack of plastid translation blocks development very early, whereas disruption of photosynthesis without compromising plastid translation blocks development at a later stage. We discuss implications of these and other recent observations for the nature of the plastid-derived signals that regulate photosynthetic differentiation and the role of GUN1, an enigmatic protein involved in biogenic signaling.","PeriodicalId":20186,"journal":{"name":"Plant Cell","volume":" ","pages":"3903-3913"},"PeriodicalIF":10.0,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11449110/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140306514","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}

引用次数: 0

Identification of an early assembly factor for photosystem II biogenesis. 鉴定光系统 II 生物生成的早期组装因子。

IF 1 1区生物学

Plant Cell Pub Date : 2024-10-03 DOI: 10.1093/plcell/koae220

Renuka Kolli

引用次数: 0