Plant & Cell Physiology最新文献_第2页

The PLETHORA Homolog In Marchantia polymorpha is Essential To Meristem Maintenance, Developmental Progression, And Redox Homeostasis. Marchantia polymorpha 中的 PLETHORA 同源物对分生组织的维持、发育进程和氧化还原平衡至关重要。

Plant & Cell Physiology Pub Date : 2024-05-17 DOI: 10.1093/pcp/pcae055

Jing Fu, Congye Zhou, Fei Ma, Jing Zhao, Fei Yu, Hongchang Cui

{"title":"The PLETHORA Homolog In Marchantia polymorpha is Essential To Meristem Maintenance, Developmental Progression, And Redox Homeostasis.","authors":"Jing Fu, Congye Zhou, Fei Ma, Jing Zhao, Fei Yu, Hongchang Cui","doi":"10.1093/pcp/pcae055","DOIUrl":"https://doi.org/10.1093/pcp/pcae055","url":null,"abstract":"To adapt to a terrestrial habitat, the ancestors of land plants must make several morphological and physiological modifications, such as a meristem allowing for three-dimensional growth, rhizoids for water and nutrient uptake, air pore complexes or stomata that permit air exchange, and a defense system to cope with oxidative stress that occurs frequently in a terrestrial habitat. To understand how meristem is determined during land plant evolution, we characterized the function of the closest PLETHORA homolog in the liverwort Marchantia polymorpha, which we named MpPLT. Through transgenic approach, we showed that MpPLT is expressed not only in the stem cells at the apical notch but also in the proliferation zone of the meristem, as well as cells that form the air-pore complex and rhizoids. Using the CRISPR method we then created mutants for MpPLT and found that the mutants are not only defective in meristem maintenance but also compromised in air-pore complex and rhizoid development. Strikingly, at later developmental stages, numerous gemma-like structures were formed in Mpplt mutants, suggesting developmental arrest. Further experiments indicate that MpPLT promotes plant growth by regulating MpWOX, which shared a similar expression pattern as MpPLT, and genes involved in auxin and cytokinin signaling pathways. Through transcriptome analyses, we found that MpPLT also has a role in redox homeostasis and that this role is essential to plant growth. Together, these results suggest that MpPLT has a crucial role in liverwort growth and development and hence may have played a crucial role in early land plant evolution.","PeriodicalId":502140,"journal":{"name":"Plant & Cell Physiology","volume":"77 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140964489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A GDSL-motif Esterase/Lipase Affects Wax and Cutin Deposition and Controls Hull-Caryopsis Attachment in Barley. GDSL-motif酯酶/脂酶影响蜡质和角质沉积并控制大麦的颖壳-颖果附着。

Plant & Cell Physiology Pub Date : 2024-04-26 DOI: 10.1093/pcp/pcae041

Chiara Campoli, Mhmoud Eskan, Trisha McAllister, Linsan Liu, Jennifer R. Shoesmith, Alan Prescott, Luke Ramsay, Robbie Waugh, Sarah M. McKim

{"title":"A GDSL-motif Esterase/Lipase Affects Wax and Cutin Deposition and Controls Hull-Caryopsis Attachment in Barley.","authors":"Chiara Campoli, Mhmoud Eskan, Trisha McAllister, Linsan Liu, Jennifer R. Shoesmith, Alan Prescott, Luke Ramsay, Robbie Waugh, Sarah M. McKim","doi":"10.1093/pcp/pcae041","DOIUrl":"https://doi.org/10.1093/pcp/pcae041","url":null,"abstract":"The cuticle covering aerial organs of land plants is well known to protect against desiccation. Cuticles also play diverse and specialised functions, including organ separation, depending on plant and tissue. Barley shows a distinctive cuticular wax bloom enriched in beta-diketones on leaf sheaths, stem nodes and internodes, and inflorescences. Barley also develops a sticky surface on the outer pericarp layer of its grain fruit leading to strongly adhered hulls, 'covered grain', important for embryo protection and seed dispersal. While the transcription factor-encoding gene HvNUDUM (HvNUD) appears essential for adherent hulls, little is understood about how the pericarp cuticle changes during adhesion or whether changes in pericarp cuticles contribute to another phenotype where hulls partially shed, called 'skinning'. To that end, we screened barley lines for hull adhesion defects, focussing on the Eceriferum (= waxless, cer) mutants. Here, we show that the cer-xd allele causes defective wax blooms and compromised hull adhesion, and results from a mutation removing the last ten amino acids of the GDSL-motif esterase/lipase HvGDSL1. We used severe and moderate HvGDSL1 alleles to show that complete HvGDSL1 function is essential for leaf blade cuticular integrity, wax bloom deposition over inflorescences and leaf sheaths, and pericarp cuticular ridge formation. Expression data suggests that HvGDSL1 may regulate hull adhesion independently of HvNUD. We found high conservation of HvGDSL1 among barley germplasm, so variation in HvGDSL1 unlikely leads to grain skinning in cultivated barley. Taken together, we reveal a single locus which controls adaptive cuticular properties across different organs in barley.","PeriodicalId":502140,"journal":{"name":"Plant & Cell Physiology","volume":"9 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140652609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Orchestration Of Photosynthesis-associated Gene Expression And Galactolipid Biosynthesis During Chloroplast Differentiation In Plants. 植物叶绿体分化过程中光合作用相关基因表达和半乳糖脂生物合成的协调性

Plant & Cell Physiology Pub Date : 2024-04-26 DOI: 10.1093/pcp/pcae049

Sho Fujii, Hajime Wada, Koichi Kobayashi

{"title":"Orchestration Of Photosynthesis-associated Gene Expression And Galactolipid Biosynthesis During Chloroplast Differentiation In Plants.","authors":"Sho Fujii, Hajime Wada, Koichi Kobayashi","doi":"10.1093/pcp/pcae049","DOIUrl":"https://doi.org/10.1093/pcp/pcae049","url":null,"abstract":"The chloroplast thylakoid membrane is composed of membrane lipids and photosynthetic protein complexes, and orchestration of thylakoid lipid biosynthesis and photosynthesis-associated protein accumulation is considered important for thylakoid development. Galactolipids consist of ~80% of the thylakoid lipids and their biosynthesis is fundamental for chloroplast development. We previously reported that the suppression of galactolipid biosynthesis decreased the expression of photosynthesis-associated nuclear- and plastid-encoded genes (PhANGs and PhAPGs). However, the mechanism for coordinative regulation between galactolipid biosynthesis in plastids and expression of PhANGs and PhAPGs remains largely unknown. To elucidate this mechanism, we investigated the gene expression patterns in galactolipid-deficient Arabidopsis seedlings during the deetiolation process. We found that galactolipids are crucial for inducing both the transcript accumulation of PhANGs and PhAPGs and the accumulation of plastid-encoded photosynthesis-associated proteins in developing chloroplasts. Genetic analysis indicates the contribution of GENOMES UNCOUPLED1 (GUN1)-mediated plastid-to-nucleus signaling pathway for PhANG regulation in response to galactolipid levels. Previous studies suggested that the accumulation of GUN1 reflects the state of protein homeostasis in plastids and alters the PhANG expression level. Thus we propose a model that galactolipid biosynthesis determines the protein homeostasis in plastids at the initial phase of deetiolation and optimizes the GUN1-dependent signaling to regulate the PhANG expression. This mechanism might contribute to orchestrating the biosynthesis of lipids and proteins for the biogenesis of functional chloroplasts in plants.","PeriodicalId":502140,"journal":{"name":"Plant & Cell Physiology","volume":"10 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140652531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sex on steroids: how brassinosteroids shape reproductive development in plants. 类固醇的性作用：黄铜类固醇如何影响植物的生殖发育。

Plant & Cell Physiology Pub Date : 2024-04-26 DOI: 10.1093/pcp/pcae050

R B Lima, D. Figueiredo

引用次数: 0

VND genes redundantly regulate cell wall thickening during parasitic nematode infection. VND 基因在寄生线虫感染过程中冗余调控细胞壁增厚。

Plant & Cell Physiology Pub Date : 2024-04-25 DOI: 10.1093/pcp/pcae048

Saki Gushino, A. Tsai, Misato Otani, T. Demura, S. Sawa

引用次数: 0

JOINTLESS Maintains Inflorescence Meristem Identity in Tomato JOINTLESS 可保持番茄花序分生组织的特性

Plant & Cell Physiology Pub Date : 2024-04-17 DOI: 10.1093/pcp/pcae046

Samuel Huerga-Fernández, Nathalie Detry, Beata Orman-Ligeza, Frédéric Bouché, Marc Hanikenne, Claire Périlleux

{"title":"JOINTLESS Maintains Inflorescence Meristem Identity in Tomato","authors":"Samuel Huerga-Fernández, Nathalie Detry, Beata Orman-Ligeza, Frédéric Bouché, Marc Hanikenne, Claire Périlleux","doi":"10.1093/pcp/pcae046","DOIUrl":"https://doi.org/10.1093/pcp/pcae046","url":null,"abstract":"JOINTLESS (J) was isolated in tomato (Solanum lycopersicum) from mutants lacking a flower pedicel abscission zone (AZ), and encodes a MADS-box protein of the SVP/AGL24 sub-family. The loss of J function also causes the return to leaf initiation in the inflorescences, indicating a pivotal role in inflorescence meristem identity. Here, we compared j mutants in different accessions that exhibit either an indeterminate shoot growth, producing regular sympodial segments, or a determinate shoot growth, due to the reduction of sympodial segments and causal mutation of the SELF PRUNING (SP) gene. We observed that the inflorescence phenotype of j mutants is stronger in indeterminate (SP) accessions such as Ailsa Craig (AC), than in determinate (sp) ones, such as Heinz (Hz). Moreover, RNA-seq analysis revealed that the return to vegetative fate in j mutants is accompanied by expression of SP, which supports conversion of the inflorescence meristem to sympodial shoot meristem in j inflorescences. Other markers of vegetative meristems such as APETALA2c, and branching genes such as BRANCHED 1 (BRC1a/b) were differentially expressed in the inflorescences of j(AC) mutants. We also found in the indeterminate AC accession that J represses homeotic genes of B- and C-classes, and that its overexpression causes an oversized leafy calyx phenotype and has a dominant negative effect on AZ formation. A model is therefore proposed where J, by repressing shoot fate and influencing reproductive organ formation, acts as a key determinant of inflorescence meristems.","PeriodicalId":502140,"journal":{"name":"Plant & Cell Physiology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140627122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Response and Adaptive Mechanism of Flavonoids in Pigmented Potatoes to Different Altitudes 色素马铃薯中黄酮类化合物对不同海拔高度的反应和适应机制

Plant & Cell Physiology Pub Date : 2024-04-16 DOI: 10.1093/pcp/pcae045

Xiaojie Wu, Jiping Xiao

引用次数: 0

Functions and Mechanisms of Brassinosteroids in Regulating Crop Agronomic Traits 芸苔素甾类化合物调节作物农艺性状的功能和机制

Plant & Cell Physiology Pub Date : 2024-04-15 DOI: 10.1093/pcp/pcae044

Xu Chen, Xiaotong Hu, Jianjun Jiang, Xuelu Wang

引用次数: 0

The role of FtsH complexes in the response to abiotic stress in cyanobacteria FtsH 复合物在蓝藻应对非生物胁迫中的作用

Plant & Cell Physiology Pub Date : 2024-04-15 DOI: 10.1093/pcp/pcae042

Vendula Krynická, Josef Komenda

{"title":"The role of FtsH complexes in the response to abiotic stress in cyanobacteria","authors":"Vendula Krynická, Josef Komenda","doi":"10.1093/pcp/pcae042","DOIUrl":"https://doi.org/10.1093/pcp/pcae042","url":null,"abstract":"FtsH proteases (FtsHs) belong to intramembrane ATP-dependent metalloproteases which are widely distributed in eubacteria, mitochondria, and chloroplasts. The best studied role of FtsH in Escherichia coli includes quality control of membrane proteins, regulation of response to heat shock, superoxide stress and viral infection, and control of lipopolysaccharide biosynthesis. While heterotrophic bacteria mostly contain a single indispensable FtsH complex, the photosynthetic cyanobacteria usually contain three FtsH complexes: two heterocomplexes and one homocomplex. The essential cytoplasmic FtsH1/3 most probably fulfils a role similar to other bacterial FtsHs whereas the thylakoid FtsH2/3 heterocomplex and FtsH4 homocomplex appear to maintain the photosynthetic apparatus of cyanobacteria and optimize its functionality. Moreover, recent studies suggested involvement of all FtsH proteases in a complex response to nutrient stresses. In this review, we aim to comprehensively review the functions of the cyanobacterial FtsH complexes specifically under stress conditions with emphasis on nutrient deficiency and high irradiance. We also point to various unresolved issues concerning the FtsH functions, which deserve further attention.","PeriodicalId":502140,"journal":{"name":"Plant & Cell Physiology","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140588903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analytical Methods for Brassinosteroid Analysis: Recent Advances and Applications 芸苔素类固醇分析方法：最新进展与应用

Plant & Cell Physiology Pub Date : 2024-04-15 DOI: 10.1093/pcp/pcae038

Jana Oklestkova, Miroslav Kvasnica, Miroslav Strnad

引用次数: 0