Plant and Cell Physiology最新文献_第9页

Minimized Dark Consumption of Calvin Cycle Intermediates Facilitates the Initiation of Photosynthesis in Synechocystis sp. PCC 6803. 将卡尔文循环中间产物的暗消耗减至最低可促进 Synechocystis sp. PCC 6803 开始光合作用。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae102

Kenya Tanaka, Akihiko Kondo, Tomohisa Hasunuma

{"title":"Minimized Dark Consumption of Calvin Cycle Intermediates Facilitates the Initiation of Photosynthesis in Synechocystis sp. PCC 6803.","authors":"Kenya Tanaka, Akihiko Kondo, Tomohisa Hasunuma","doi":"10.1093/pcp/pcae102","DOIUrl":"10.1093/pcp/pcae102","url":null,"abstract":"Cyanobacteria intricately regulate their metabolic pathways during the diurnal cycle to ensure survival and growth. Under dark conditions, the breakdown of glycogen, an energy reserve, in these organisms replenishes Calvin cycle intermediates, especially downstream glycolytic metabolites, which are necessary for photosynthesis initiation upon light irradiation. However, it remains unclear how the accumulation of these intermediates is maintained in the dark despite limited glycogen availability. Therefore, in this study, we investigated the regulation of downstream glycolytic metabolites of the Calvin cycle under dark and light conditions using Synechocystis sp. PCC 6803. Our results showed that during the dark period, low pyruvate kinase (Pyk) activity ensured metabolite accumulation, while endogenous Pyk overexpression significantly lowered the accumulation of glycolytic intermediates. Remarkably, wild-type Synechocystis maintained oxygen evolution ability throughout dark treatment for over 2 d, while Pyk overexpression resulted in decreased oxygen evolution after 16 h of dark treatment. These results indicated that limiting Pyk activity via darkness treatment facilitates photosynthetic initiation by maintaining glycolytic intermediates. Similarly, phosphoenolpyruvate carboxylase (PepC) overexpression decreased oxygen evolution under dark treatment; however, its effect was lower than that of Pyk. Furthermore, we noted that as PepC overexpression decreased the levels of glycolytic intermediates in the dark, sugar phosphates in the Calvin-Benson-Bassham (CBB) cycle showed high accumulation, suggesting that sugar phosphates play important roles in supporting photosynthesis initiation. Therefore, our study highlights the importance of controlling the metabolic pathways through which glycolytic and CBB cycle intermediates are consumed (defined as cataplerosis of the CBB cycle) to ensure stable photosynthesis.","PeriodicalId":20575,"journal":{"name":"Plant and Cell Physiology","volume":" ","pages":"1812-1820"},"PeriodicalIF":3.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142140881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction To: Auxin Biosynthesis, Accumulation, Action and Transport are Involved in Stress-Induced Microspore Embryogenesis Initiation and Progression in Brassica Napus. 修正：生长素的合成、积累、作用和运输参与了胁迫诱导的甘蓝型油菜小孢子胚胎发生、发生和发展。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae125

引用次数: 0

The HD-ZIP II Gene PaHAT14 Increases Cuticle Deposition by Downregulating ERF Gene PaERF105 in Phalaenopsis. HD-ZIP II 基因 PaHAT14 通过下调蝴蝶兰中的 ERF 基因 PaERF105 来增加角质层的沉积。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae078

Wan-Ting Mao, Wei-Han Hsu, Jia-Lin Song, Chang-Hsien Yang

{"title":"The HD-ZIP II Gene PaHAT14 Increases Cuticle Deposition by Downregulating ERF Gene PaERF105 in Phalaenopsis.","authors":"Wan-Ting Mao, Wei-Han Hsu, Jia-Lin Song, Chang-Hsien Yang","doi":"10.1093/pcp/pcae078","DOIUrl":"10.1093/pcp/pcae078","url":null,"abstract":"To analyze the genes involved in orchid floral development, a homeodomain-leucine zipper II gene PaHAT14, which is specifically and highly expressed in perianth during early flower development, was identified from Phalaenopsis. Transgenic Arabidopsis plants expressing 35S::PaHAT14 and 35S::PaHAT14 + SRDX (fused with the repressor motif SRDX) exhibited similar altered phenotypes, including small leaves, early flowering and bending petals with increased cuticle production. This suggests that PaHAT14 acts as a repressor. In contrast, transgenic Arabidopsis plants expressing 35S::PaHAT14 + VP16 (fused with the activation domain VP16) exhibited curled leaves, late flowering and folded petals with decreased cuticle production within hardly opened flowers. Additionally, the expression of the ERF gene DEWAX2, which negatively regulates cuticular wax biosynthesis, was downregulated in 35S::PaHAT14 and 35S::PaHAT14 + SRDX transgenic Arabidopsis, while it was upregulated in 35S::PaHAT14 + VP16 transgenic Arabidopsis. Furthermore, transient overexpression of PaHAT14 in Phalaenopsis petal/sepal increased cuticle deposition due to the downregulation of PaERF105, a Phalaenopsis DEWAX2 ortholog. On the other hand, transient overexpression of PaERF105 decreased cuticle deposition, whereas cuticle deposition increased and the rate of epidermal water loss was reduced in PaERF105 virus-induced gene silencing Phalaenopsis flowers. Moreover, ectopic expression of PaERF105 not only produced phenotypes similar to those in 35S::PaHAT14 + VP16 Arabidopsis but also compensated for the altered phenotypes observed in 35S::PaHAT14 and 35S::PaHAT14 + SRDX Arabidopsis. These results suggest that PaHAT14 promotes cuticle deposition by negatively regulating downstream gene PaERF105 in orchid flowers.","PeriodicalId":20575,"journal":{"name":"Plant and Cell Physiology","volume":" ","pages":"1751-1768"},"PeriodicalIF":3.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141580666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Arabidopsis Pentatricopeptide Repeat Protein GEND2 Participates in Mitochondrial RNA Editing. 拟南芥五肽重复蛋白 GEND2 参与线粒体 RNA 编辑。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae108

Yaqing Nie, Yan Li, Penglai Yuan, Chengyun Wu, Xiaoqing Wang, Chunfei Wang, Xiumei Xu, Zhenguo Shen, Zhubing Hu

{"title":"Arabidopsis Pentatricopeptide Repeat Protein GEND2 Participates in Mitochondrial RNA Editing.","authors":"Yaqing Nie, Yan Li, Penglai Yuan, Chengyun Wu, Xiaoqing Wang, Chunfei Wang, Xiumei Xu, Zhenguo Shen, Zhubing Hu","doi":"10.1093/pcp/pcae108","DOIUrl":"10.1093/pcp/pcae108","url":null,"abstract":"In Arabidopsis, RNA editing alters more than 500 cytidines (C) to uridines (U) in mitochondrial transcripts, a process involving the family of pentatricopeptide repeat (PPR) proteins. Here, we report a previously uncharacterized mitochondrial PLS-type PPR protein, GEND2, which functions in the mitochondrial RNA editing. The T-DNA insertion in the 5'-untranslated region of GEND2, referred to as gend2-1, results in defective root development compared to wild-type (WT) plants. A comprehensive examination of mitochondrial RNA-editing sites revealed a significant reduction in the gend2-1 mutant compared to WT plants, affecting six specific mitochondrial RNA editing sites, notably within the mitochondrial genes CcmFn-1, RPSL2 and ORFX. These genes encode critical components of cytochrome protein maturation pathway, mitochondrial ribosomal subunit and twin arginine translocation subunits, respectively. Further analysis of the transcriptional profile of the gend2-1 mutant and WT revealed a striking induction of expression in a cluster of genes associated with mitochondrial dysfunction and regulated by ANAC017, a key regulator coordinating organelle functions and stress responses. Intriguingly, the gend2-1 mutation activated an ANAC017-dependent signaling aimed at countering cell wall damage induced by cellulose synthase inhibitors, as well as an ANAC017-independent pathway that retarded root growth under normal condition. Collectively, our findings identify a novel mitochondrial PLS-type PPR protein GEND2, which participates in the editing of six specific mitochondrial RNA editing sites. Furthermore, the gend2-1 mutation triggers two distinct pathways in plants: an ANAC017-dependent pathway and ANAC017-independent pathway.","PeriodicalId":20575,"journal":{"name":"Plant and Cell Physiology","volume":" ","pages":"1849-1861"},"PeriodicalIF":3.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142293933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diurnal.plant.tools in 2024: Expanding to Marchantia polymorpha and Four Angiosperms. 2024 年的 Diurnal.plant.tools：扩展到 Marchantia polymorpha 和四种被子植物。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae099

Qiao Wen Tan, Emmanuel Tan, Marek Mutwil

{"title":"Diurnal.plant.tools in 2024: Expanding to Marchantia polymorpha and Four Angiosperms.","authors":"Qiao Wen Tan, Emmanuel Tan, Marek Mutwil","doi":"10.1093/pcp/pcae099","DOIUrl":"10.1093/pcp/pcae099","url":null,"abstract":"Diurnal gene expression is a pervasive phenomenon occurring across all kingdoms of life, orchestrating adaptive responses to daily environmental fluctuations and thus enhancing organismal fitness. Our understanding of the plant circadian clock is primarily derived from studies in Arabidopsis, and direct comparisons are difficult due to differences in gene family sizes. To this end, the identification of functional orthologs based on diurnal and tissue expression is necessary. The diurnal.plant.tools database constitutes a repository of gene expression profiles from 17 members of the Archaeplastida lineage, with built-in tools facilitating cross-species comparisons. In this database update, we expand the dataset with diurnal gene expression from four agriculturally significant crop species and Marchantia, a plant of evolutionary significance. Notably, the inclusion of diurnal gene expression data for Marchantia enables researchers to glean insights into the evolutionary trajectories of the circadian clock and other biological processes spanning from algae to angiosperms. Moreover, integrating diurnal gene expression data with datasets from related gene co-expression databases, such as CoNekt-Plants and CoNekt-Stress, which contain gene expression data for tissue and perturbation experiments, provides a comprehensive overview of gene functions across diverse biological contexts. This expanded database serves as a valuable resource for elucidating the intricacies of diurnal gene regulation and its evolutionary underpinnings in plant biology.","PeriodicalId":20575,"journal":{"name":"Plant and Cell Physiology","volume":" ","pages":"1888-1899"},"PeriodicalIF":3.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142111313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid Vacuolar Sorting of the Borate Transporter BOR1 Requires the Adaptor Protein Complex AP-4 in Arabidopsis. 拟南芥中硼酸盐转运体 BOR1 的快速空泡分选需要适配蛋白复合体 AP-4。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae096

Akira Yoshinari, Yutaro Shimizu, Takuya Hosokawa, Akihiko Nakano, Tomohiro Uemura, Junpei Takano

{"title":"Rapid Vacuolar Sorting of the Borate Transporter BOR1 Requires the Adaptor Protein Complex AP-4 in Arabidopsis.","authors":"Akira Yoshinari, Yutaro Shimizu, Takuya Hosokawa, Akihiko Nakano, Tomohiro Uemura, Junpei Takano","doi":"10.1093/pcp/pcae096","DOIUrl":"10.1093/pcp/pcae096","url":null,"abstract":"Plants maintain nutrient homeostasis by controlling the activities and abundance of nutrient transporters. In Arabidopsis thaliana, the borate (B) transporter BOR1 plays a role in the efficient translocation of B under low-B conditions. BOR1 undergoes polyubiquitination in the presence of sufficient B and is then transported to the vacuole via multivesicular bodies (MVBs) to prevent B accumulation in tissues at a toxic level. A previous study indicated that BOR1 physically interacts with µ subunits of adaptor protein complexes AP-3 and AP-4, both involved in vacuolar sorting pathways. In this study, we investigated the roles of AP-3 and AP-4 subunits in BOR1 trafficking in Arabidopsis. The lack of AP-3 subunits did not affect either vacuolar sorting or polar localization of BOR1-GFP, whereas the absence of AP-4 subunits resulted in a delay in high-B-induced vacuolar sorting without affecting polar localization. Super-resolution microscopy revealed a rapid sorting of BOR1-GFP into AP-4-positive spots in the trans-Golgi network (TGN) upon high-B supply. These results indicate that AP-4 is involved in sequestration of ubiquitinated BOR1 into a TGN-specific subdomain 'vacuolar-trafficking zone', and is required for efficient sorting of MVB and vacuole. Our findings have thus helped elucidate the rapid vacuolar sorting process facilitated by AP-4 in plant nutrient transporters.","PeriodicalId":20575,"journal":{"name":"Plant and Cell Physiology","volume":" ","pages":"1801-1811"},"PeriodicalIF":3.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142111328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nutrient Requirements Shape the Preferential Habitat of Allorhizobium vitis VAR03-1, a Commensal Bacterium, in the Rhizosphere of Arabidopsis thaliana. 养分需求决定了拟南芥根瘤菌 Allorhizobium vitis VAR03-1（一种共生细菌）的优先栖息地。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae091

Niarsi Merry Hemelda, Jiyuan Bao, Megumi Watanabe, Hidenori Matsui, Kazuhiro Toyoda, Yuki Ichinose, Yoshiteru Noutoshi

{"title":"Nutrient Requirements Shape the Preferential Habitat of Allorhizobium vitis VAR03-1, a Commensal Bacterium, in the Rhizosphere of Arabidopsis thaliana.","authors":"Niarsi Merry Hemelda, Jiyuan Bao, Megumi Watanabe, Hidenori Matsui, Kazuhiro Toyoda, Yuki Ichinose, Yoshiteru Noutoshi","doi":"10.1093/pcp/pcae091","DOIUrl":"10.1093/pcp/pcae091","url":null,"abstract":"A diverse range of commensal bacteria inhabit the rhizosphere, influencing host plant growth and responses to biotic and abiotic stresses. While root-released nutrients can define soil microbial habitats, the bacterial factors involved in plant-microbe interactions are not well characterized. In this study, we investigated the colonization patterns of two plant disease biocontrol agents, Allorhizobium vitis VAR03-1 and Pseudomonas protegens Cab57, in the rhizosphere of Arabidopsis thaliana using Murashige and Skoog (MS) agar medium. VAR03-1 formed colonies even at a distance from the roots, preferentially in the upper part, while Cab57 colonized only the root surface. The addition of sucrose to the agar medium resulted in excessive proliferation of VAR03-1, similar to its pattern without sucrose, whereas Cab57 formed colonies only near the root surface. Overgrowth of both bacterial strains upon nutrient supplementation inhibited host growth, independent of plant immune responses. This inhibition was reduced in the VAR03-1 ΔrecA mutant, which exhibited increased biofilm formation, suggesting that some activities associated with the free-living lifestyle rather than the sessile lifestyle may be detrimental to host growth. VAR03-1 grew in liquid MS medium with sucrose alone, while Cab57 required both sucrose and organic acids. Supplementation of sugars and organic acids allowed both bacterial strains to grow near and away from Arabidopsis roots in MS agar. These results suggest that nutrient requirements for bacterial growth may determine their growth habitats in the rhizosphere, with nutrients released in root exudates potentially acting as a limiting factor in harnessing microbiota.","PeriodicalId":20575,"journal":{"name":"Plant and Cell Physiology","volume":" ","pages":"1769-1786"},"PeriodicalIF":3.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11631059/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142056324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Harnessing Virus Vectors for Heritable Tissue Culture-Free Gene Editing. 利用病毒载体进行无遗传组织培养的基因编辑。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-06 DOI: 10.1093/pcp/pcae131

Hiroki Tsutsui

引用次数: 0

The Role of Puerarin in Chronic Wounds: A Review of its Mechanism of Action and Potential Novel Applications. 葛根素在慢性伤口中的作用：葛根素在慢性伤口中的作用：作用机制与潜在新应用综述。

IF 3.9 2区生物学

Plant and Cell Physiology Pub Date : 2024-12-01 Epub Date: 2022-03-11 DOI: 10.1177/15347346221086687

Noor Anvery, Abdulhafez Selim, Amor Khachemoune

引用次数: 0

Are complex traits underpinned by polygenic molecular traits? A reflection on the complexity of gene expression. 复杂性状是否由多基因分子性状支撑？对基因表达复杂性的思考。