Plant Physiology最新文献_第10页

Stomatal closure as a driver of minimum leaf conductance declines at high temperature and vapor pressure deficit in Quercus. 气孔关闭是柞树在高温和蒸汽压力不足条件下叶片最小传导率下降的驱动因素。

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-17 DOI: 10.1093/plphys/kiae551

J Zailaa,C Scoffoni,C R Brodersen

{"title":"Stomatal closure as a driver of minimum leaf conductance declines at high temperature and vapor pressure deficit in Quercus.","authors":"J Zailaa,C Scoffoni,C R Brodersen","doi":"10.1093/plphys/kiae551","DOIUrl":"https://doi.org/10.1093/plphys/kiae551","url":null,"abstract":"Rising global temperatures and vapor pressure deficits (VPD) are increasing plant water demand and becoming major drivers of large-scale plant mortality. Controlling transient leaf water loss after stomatal closure (gmin) is recognized as a key trait determining how long plants survive during soil drought. Yet, substantial uncertainty remains regarding how gmin responds to elevated temperatures and VPD and the underlying mechanisms. We measured gmin in 24 Quercus species from temperate and Mediterranean climates to determine if gmin was sensitive to a coupled temperature and VPD increase. We also explored mechanistic links to phenology, climate, evolutionary history, and leaf anatomy. We found that gmin in all species exhibited a non-linear negative temperature and VPD dependence. At 25°C (VPD = 2.2 kPa), gmin varied from 1.19 to 8.09 mmol m-2 s-1 across species but converged to 0.57 ± 0.06 mmol m-2 s-1 at 45°C (VPD = 6.6 kPa). In a subset of species, the effect of temperature and VPD on gmin was reversible and linked to the degree of stomatal closure, which was greater at 45°C than at 25°C. Our results show that gmin is dependent on temperature and VPD, is highly conserved in Quercus species, and is linked to leaf anatomy and stomatal behavior.","PeriodicalId":20101,"journal":{"name":"Plant Physiology","volume":"124 1","pages":""},"PeriodicalIF":7.4,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447944","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}

引用次数: 0

Bigger meristem, higher yield? The roles of REL2 and RELK in maize meristem function and yield enhancement. 更大的分生组织，更高的产量？REL2 和 RELK 在玉米分生组织功能和增产中的作用

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-17 DOI: 10.1093/plphys/kiae552

Janlo M Robil,Thu M Tran

引用次数: 0

Correction to: The trichome pattern diversity of Cardamine shares genetic mechanisms with Arabidopsis but differs in environmental drivers. 更正：卡达明的毛状体模式多样性与拟南芥具有相同的遗传机制，但在环境驱动因素方面存在差异。

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-17 DOI: 10.1093/plphys/kiae539

引用次数: 0

Balancing photosynthesis and photoprotection: the role of RppA in acclimation to light fluctuations in cyanobacteria. 平衡光合作用和光保护：RppA 在蓝藻适应光波动中的作用。

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-17 DOI: 10.1093/plphys/kiae553

Pablo Ignacio Calzadilla,Fernando Unrein

引用次数: 0

ASYMMETRIC LEAVES1 promotes leaf hyponasty in Arabidopsis by light-mediated auxin signaling. 拟南芥中的ASYMMETRIC LEAVES1通过光介导的叶绿素信号促进叶片下垂。

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-17 DOI: 10.1093/plphys/kiae550

Nayoung Lee,Dae Yeon Hwang,Hong Gil Lee,Hyeona Hwang,Hye Won Kang,Wonbok Lee,Min Gi Choi,Ye Jin Ahn,Chaemyeong Lim,Jeong-Il Kim,Moonhyuk Kwon,Sun Tae Kim,Nam-Chon Paek,Hyunwoo Cho,Kee Hoon Sohn,Pil Joon Seo,Young Hun Song

{"title":"ASYMMETRIC LEAVES1 promotes leaf hyponasty in Arabidopsis by light-mediated auxin signaling.","authors":"Nayoung Lee,Dae Yeon Hwang,Hong Gil Lee,Hyeona Hwang,Hye Won Kang,Wonbok Lee,Min Gi Choi,Ye Jin Ahn,Chaemyeong Lim,Jeong-Il Kim,Moonhyuk Kwon,Sun Tae Kim,Nam-Chon Paek,Hyunwoo Cho,Kee Hoon Sohn,Pil Joon Seo,Young Hun Song","doi":"10.1093/plphys/kiae550","DOIUrl":"https://doi.org/10.1093/plphys/kiae550","url":null,"abstract":"In plants, balancing growth and environmental responses is crucial for maximizing fitness. Close proximity among plants and canopy shade, which negatively impacts reproduction, elicits morphological adjustments such as hypocotyl growth and leaf hyponasty, mainly through changes in light quality and auxin levels. However, how auxin, synthesized from a shaded leaf blade, distally induces elongation of hypocotyl and petiole cells remains to be elucidated. We demonstrated that ASYMMETRIC LEAVES1 (AS1) promotes leaf hyponasty through the regulation of auxin biosynthesis, polar auxin transport, and auxin signaling genes in Arabidopsis (Arabidopsis thaliana). AS1 overexpression leads to elongation of the abaxial petiole cells with auxin accumulation in the petiole, resulting in hyponastic growth, which is abolished by the application of an auxin transport inhibitor to the leaf blade. In addition, the as1 mutant exhibits reduced hypocotyl growth under shade conditions. We observed that AS1 protein accumulates in the nucleus in response to shade or far-red light. Chromatin immunoprecipitation analysis identified the association of AS1 with the promoters of YUCCA8 (YUC8) and INDOLE-3-ACETIC ACID INDUCIBLE 19 (IAA19). In addition, AS1 forms complexes with PHYTOCHROME INTERACTING FACTORs in the nucleus and synergistically induces YUC8 and IAA19 expression. Our findings suggest that AS1 plays a crucial role in facilitating phenotypic plasticity to the surroundings by connecting light and phytohormone action.","PeriodicalId":20101,"journal":{"name":"Plant Physiology","volume":"58 1","pages":""},"PeriodicalIF":7.4,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447946","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}

引用次数: 0

The pathogen-induced peptide CEP14 is perceived by the receptor-like kinase CEPR2 to promote systemic disease resistance in Arabidopsis. 病原体诱导肽 CEP14 可被受体样激酶 CEPR2 感知，从而促进拟南芥的系统抗病性。

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-16 DOI: 10.1093/plphys/kiae549

Xiaoyang Wang,Wenlong Yu,Qin Yuan,Xinyu Chen,Yunxia He,Jinggeng Zhou,Qingqing Xun,Guodong Wang,Jia Li,Xiangzong Meng

{"title":"The pathogen-induced peptide CEP14 is perceived by the receptor-like kinase CEPR2 to promote systemic disease resistance in Arabidopsis.","authors":"Xiaoyang Wang,Wenlong Yu,Qin Yuan,Xinyu Chen,Yunxia He,Jinggeng Zhou,Qingqing Xun,Guodong Wang,Jia Li,Xiangzong Meng","doi":"10.1093/plphys/kiae549","DOIUrl":"https://doi.org/10.1093/plphys/kiae549","url":null,"abstract":"Secreted plant peptides that trigger cellular signaling are crucial for plant growth, development, and adaptive responses to environmental stresses. In Arabidopsis (Arabidopsis thaliana), the C-TERMINALLY ENCODED PEPTIDE (CEP) family is a class of secreted signaling peptides that is phylogenetically divided into two groups: group I (CEP1-CEP12) and group II (CEP13-CEP15). Several group I CEP peptides regulate root architecture and nitrogen starvation responses, whereas the biological activity and roles of group II CEPs remain unknown. Here, we report that a group II CEP peptide, CEP14, functions as a pathogen-induced elicitor of Arabidopsis immunity. In response to infection by the bacterial pathogen Pseudomonas syringae, CEP14 expression was highly induced via the salicylic acid pathway in Arabidopsis leaves and roots. In the absence of pathogen attack, treatment of Arabidopsis plants with synthetic CEP14 peptides was sufficient to trigger immune responses. Genetic and biochemical analyses demonstrated that the receptor-like kinase CEP RECEPTOR 2 (CEPR2) perceives CEP14 to trigger plant immunity. The SOMATIC EMBRYOGENESIS RECEPTOR KINASES (SERKs) BRASSINOSTEROID INSENSITIVE 1-ASSOCIATED RECEPTOR KINASE 1 (BAK1) and SERK4 also participated in CEP14 perception by forming CEP14-induced complexes with CEPR2. Overexpression of CEP14 largely enhanced Arabidopsis resistance to P. syringae, while CEP14 or CEPR2 mutation significantly attenuated Arabidopsis systemic resistance to P. syringae. Taken together, our data reveal that the pathogen-induced CEP14 peptide, which is perceived by the CEPR2-BAK1/SERK4 receptor complexes, acts as an endogenous elicitor to promote systemic disease resistance in Arabidopsis.","PeriodicalId":20101,"journal":{"name":"Plant Physiology","volume":"1 1","pages":""},"PeriodicalIF":7.4,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142443682","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}

引用次数: 0

Altered Reactive Oxygen Species Scavenging and Hormonal Signaling in Tetraploid Rice Are Associated with Blast Resistance. 四倍体水稻清除活性氧和激素信号的改变与抗瘟性有关

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-16 DOI: 10.1093/plphys/kiae547

Ningning Wang,Chenxi Wang,Keyan Liu,Zitian Leng,Yingkai Wang,Weilong Meng,Dayong Li,Chunying Zhang,Jian Ma

引用次数: 0

Transcriptome analysis reveals role of transcription factor WRKY70 in early N-hydroxy-pipecolic acid signaling 转录组分析揭示了转录因子 WRKY70 在早期 N-羟基-联哌啶酸信号传导中的作用

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-15 DOI: 10.1093/plphys/kiae544

Jessica Foret, Jung-Gun Kim, Elizabeth S Sattely, Mary Beth Mudgett

{"title":"Transcriptome analysis reveals role of transcription factor WRKY70 in early N-hydroxy-pipecolic acid signaling","authors":"Jessica Foret, Jung-Gun Kim, Elizabeth S Sattely, Mary Beth Mudgett","doi":"10.1093/plphys/kiae544","DOIUrl":"https://doi.org/10.1093/plphys/kiae544","url":null,"abstract":"N-hydroxy-pipecolic acid (NHP) is a mobile metabolite essential for inducing and amplifying systemic acquired resistance (SAR) following pathogen attack. Early phases of NHP signaling leading to immunity have remained elusive. Here, we report the early transcriptional changes mediated by NHP and the role salicylic acid (SA) plays during this response in Arabidopsis (Arabidopsis thaliana). We show that distinct waves of expression within minutes to hours of NHP treatment include increased expression of WRKY transcription factor genes as the primary transcriptional response, followed by the induction of WRKY-regulated defense genes as the secondary response. Most genes induced by NHP within minutes were SA-dependent, whereas those induced within hours were SA-independent. These data suggest that NHP induces the primary transcriptional response under basal levels of SA and that new SA biosynthesis via ISOCHORISMATE SYNTHASE 1/SA-INDUCTION DEFICIT 2 (ICS1/SID2) is dispensable for inducing the secondary transcriptional response. We demonstrate that WRKY70 is required for the induced expression of a set of genes defining some of the secondary transcriptional response, SAR protection, and NHP-dependent enhancement of ROS production in response to flagellin treatment. Our study highlights the key genes and pathways defining early NHP responses and the role of WRKY70 in regulating NHP-dependent transcription.","PeriodicalId":20101,"journal":{"name":"Plant Physiology","volume":"28 1","pages":""},"PeriodicalIF":7.4,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142440184","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}

引用次数: 0

OsPUB75-OsHDA716 mediates deactivation and degradation of OsbZIP46 to negatively regulate drought tolerance in rice OsPUB75-OsHDA716 介导 OsbZIP46 的失活和降解，负向调节水稻的耐旱性

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-15 DOI: 10.1093/plphys/kiae545

Ying Sun, Xinyue Gu, Chengfeng Qu, Ning Jin, Tian Qin, Liang Jin, Junli Huang

{"title":"OsPUB75-OsHDA716 mediates deactivation and degradation of OsbZIP46 to negatively regulate drought tolerance in rice","authors":"Ying Sun, Xinyue Gu, Chengfeng Qu, Ning Jin, Tian Qin, Liang Jin, Junli Huang","doi":"10.1093/plphys/kiae545","DOIUrl":"https://doi.org/10.1093/plphys/kiae545","url":null,"abstract":"Histone deacetylases (HDACs) play crucial roles in plant stress responses via modification of histone as well as non-histone proteins; however, how HDAC-mediated deacetylation of non-histone substrates affects protein functions remains elusive. Here, we report that the Reduced Potassium Dependency3/Histone Deacetylase1 (RPD3/HDA1)-type histone deacetylase OsHDA716 and plant U-box (PUB) E3 ubiquitin ligase OsPUB75 form a complex to regulate rice drought response via deactivation and degradation of basic leucine zipper (bZIP) transcription factor OsbZIP46 in rice (Oryza sativa). OsHDA716 decreases ABA-induced drought tolerance, and mechanistic investigations showed that OsHDA716 interacts with and deacetylates OsbZIP46, a key regulator in ABA signaling and drought response, thus inhibiting its transcriptional activity. Furthermore, OsHDA716 recruits OsPUB75 to facilitate ubiquitination and degradation of deacetylated OsbZIP46. Therefore, the OsPUB75-OsHDA716 complex exerts double restrictions on the transcriptional activity and protein stability of OsbZIP46, leading to repression of downstream drought-responsive gene expression and consequently resulting in reduced drought tolerance. Conversely, OsbZIP46 acts as an upstream repressor to repress OsHDA716 expression, and therefore OsHDA716 and OsbZIP46 form an antagonistic pair to reciprocally inhibit each other. Genetic evidence showed that OsHDA716 works with OsbZIP46 in a common pathway to antagonistically regulate rice drought response, revealing that plants can fine-tune stress responses by the complex interplay between chromatin regulators and transcription factors. Our findings unveil an acetylation-dependent regulatory mechanism governing protein functions and shed light on the precise coordination of activity and stability of key transcription factors through a combination of different post-translational modiﬁcations.","PeriodicalId":20101,"journal":{"name":"Plant Physiology","volume":"7 1","pages":""},"PeriodicalIF":7.4,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142440201","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}

引用次数: 0

Phytochrome B promotes blast disease resistance and enhances yield in rice. 植物色素 B 促进水稻抗稻瘟病和增产。

IF 7.4 1区生物学

Plant Physiology Pub Date : 2024-10-15 DOI: 10.1093/plphys/kiae509

Xinrui Li,Huan Chen,Shuo Yang,Vikranth Kumar,Yuan Hu Xuan

{"title":"Phytochrome B promotes blast disease resistance and enhances yield in rice.","authors":"Xinrui Li,Huan Chen,Shuo Yang,Vikranth Kumar,Yuan Hu Xuan","doi":"10.1093/plphys/kiae509","DOIUrl":"https://doi.org/10.1093/plphys/kiae509","url":null,"abstract":"Phytochromes are red/far-red light receptors that regulate various aspects of plant growth, development and stress responses. The precise mechanism by which Phytochrome B (PhyB)-mediated light signaling influences plant defense and development remains unclear. In this study, we showed that PhyB enhances rice (Oryza sativa) blast disease resistance, tillering, and grain size compared to wild-type plants. Notably, PhyB interacted with and degraded grassy tiller 1 (GT1), a negative regulator of tiller development. Knockdown of GT1 in a phyB background partially rescued the diminished tillering of phyB. However, GT1 negatively regulates rice resistance to blast, suggesting that PhyB degradation of GT1 promotes tillering but not blast resistance. Previously, PhyB was found to interact with and degrade phytochrome-interacting factor 15 (PIL15), a key regulator of seed development that reduces rice resistance to blast and seed size. pil15 mutation in phyB mutants rescued phyB seed size and blast resistance, suggesting that PhyB might interact with and degrade PIL15 to negatively regulate blast resistance and seed size. PIL15 directly activated sugar will be eventually exported transporter 2a (SWEET2a). sweet2a mutants were less susceptible to blast disease compared to wild type. Collectively, these data demonstrate that PhyB promotes rice yield and blast resistance by inhibiting the transcription factors GT1 and PIL15 and downstream signaling.","PeriodicalId":20101,"journal":{"name":"Plant Physiology","volume":"230 1","pages":""},"PeriodicalIF":7.4,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142439643","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}

引用次数: 0