Journal of Experimental Botany最新文献_第9页

Inverting the lady's slipper orchid: development and active-passive mechanisms in a 'living machine'. 颠倒女士拖鞋兰花：“活机器”的发展和主动被动机制。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae444

Nick Rowe

引用次数: 0

WOX out, those teeth are sharp! 哇，那些牙齿好锋利！

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae485

Hannah Drieberg

引用次数: 0

No free entry: stomatal state as decision maker in defining stress response strategies. 不能自由进入：气孔状态是定义胁迫反应策略的决策者。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae447

Łukasz P Tarkowski, Santiago Signorelli

引用次数: 0

Plant cell wall structure and dynamics in plant-pathogen interactions and pathogen defence. 植物与病原体相互作用和病原体防御中的植物细胞壁结构和动力学。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae442

Kristina S Munzert, Timo Engelsdorf

{"title":"Plant cell wall structure and dynamics in plant-pathogen interactions and pathogen defence.","authors":"Kristina S Munzert, Timo Engelsdorf","doi":"10.1093/jxb/erae442","DOIUrl":"10.1093/jxb/erae442","url":null,"abstract":"Plant cell walls delimit cells from their environment and provide mechanical stability to withstand internal turgor pressure as well as external influences. Environmental factors can be beneficial or harmful for plants and vary substantially depending on prevailing combinations of climate conditions and stress exposure. Consequently, the physicochemical properties of plant cell walls need to be adaptive, and their functional integrity needs to be monitored by the plant. One major threat to plants is posed by phytopathogens, which employ a diversity of infection strategies and lifestyles to colonize host tissues. During these interactions, the plant cell wall represents a barrier that impedes the colonization of host tissues and pathogen spread. In a competition for maintenance and breakdown, plant cell walls can be rapidly and efficiently remodelled by enzymatic activities of plant and pathogen origin, heavily influencing the outcome of plant-pathogen interactions. We review the role of locally and systemically induced cell wall remodelling and the importance of tissue-dependent cell wall properties for the interaction with pathogens. Furthermore, we discuss the importance of cell wall-dependent signalling for defence response induction and the influence of abiotic factors on cell wall integrity and cell wall-associated pathogen resistance mechanisms.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"228-242"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521992","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

The MADS-box gene XAANTAL1 participates in Arabidopsis thaliana primary root growth and columella stem cell patterns in response to ROS, via direct regulation of PEROXIDASE 28 and RETINOBLASTOMA-RELATED genes. MADS-box 基因 XAANTAL1 通过直接调控 PEROXIDASE 28 和 RETINOBLASTOMA RELATED 参与拟南芥主根生长和结肠干细胞模式对 ROS 的响应。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae415

Estephania Zluhan-Martínez, Claudio A Castañón-Suárez, Mario A Gutiérrez-Rodríguez, Fernando Lledías, Tao Zhang, Jesús T Peng, Jazz Dickinson, Diana Belén Sánchez Rodríguez, María de la Paz Sánchez, Berenice García-Ponce, Elena R Álvarez-Buylla, Adriana Garay-Arroyo

{"title":"The MADS-box gene XAANTAL1 participates in Arabidopsis thaliana primary root growth and columella stem cell patterns in response to ROS, via direct regulation of PEROXIDASE 28 and RETINOBLASTOMA-RELATED genes.","authors":"Estephania Zluhan-Martínez, Claudio A Castañón-Suárez, Mario A Gutiérrez-Rodríguez, Fernando Lledías, Tao Zhang, Jesús T Peng, Jazz Dickinson, Diana Belén Sánchez Rodríguez, María de la Paz Sánchez, Berenice García-Ponce, Elena R Álvarez-Buylla, Adriana Garay-Arroyo","doi":"10.1093/jxb/erae415","DOIUrl":"10.1093/jxb/erae415","url":null,"abstract":"The balance between cell growth, proliferation, and differentiation emerges from gene regulatory networks coupled to various signal transduction pathways, including reactive oxygen species (ROS) and transcription factors (TFs), enabling developmental responses to environmental cues. The primary root of Arabidopsis thaliana has become a valuable system for unravelling such networks. Recently, the role of TFs that mediate ROS inhibition of primary root growth has begun to be characterized. This study demonstrates that the MADS-box TF gene XAANTAL1 (XAL1) is an essential regulator of hydrogen peroxide (H2O2) in primary root growth and root stem cell niche identity. Interestingly, our findings indicated that XAL1 acts as a positive regulator of H2O2 concentration in the root meristem by directly regulating genes involved in oxidative stress response, such as PEROXIDASE 28 (PER28). Moreover, we found that XAL1 is necessary for the H2O2-induced inhibition of primary root growth through the negative regulation of peroxidase and catalase activities. Furthermore, XAL1, in conjunction with RETINOBLASTOMA-RELATED (RBR), is essential for positively regulating the differentiation of columella stem cells and for participating in primary root growth inhibition in response to oxidative stress induced by H2O2 treatment.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"411-432"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11714753/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142390994","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

Flowers meet Newton: testing the role of gravitational pull in resupination of orchid flowers. 花朵与牛顿相遇：测试引力在兰花复壮中的作用。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae413

João C F Cardoso, Steven D Johnson, Paulo E Oliveira

{"title":"Flowers meet Newton: testing the role of gravitational pull in resupination of orchid flowers.","authors":"João C F Cardoso, Steven D Johnson, Paulo E Oliveira","doi":"10.1093/jxb/erae413","DOIUrl":"10.1093/jxb/erae413","url":null,"abstract":"Resupination refers to the developmental orientation changes of flowers through ~180°, leaving them effectively upside-down. It is a widespread trait present in 14 angiosperm families, including the Orchidaceae, where it is a gravitropic phenomenon actively controlled by auxins. Here, we demonstrate that the passive gravitational pull on flower parts can have an additional influence on resupination. We studied a lady's slipper orchid in which some flowers naturally fail to resupinate. We conducted a manipulative experiment removing floral parts and showed that both the probability of complete resupination and the degree of flower vertical movement (from 0° to 180°) are related to the mass of floral organs. During flower development, the tip of the ovary slightly curves actively (14.75°) due to gravitropism. This promotes a lever arm effect so that the gravitational pull acting on flower mass creates a torque that bends the ovary, orienting the flower into a resupinate position that is accessible to pollinators. The role of the mass of floral organs in resupination provides new insights into flower development and its role in pollination mechanisms.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"433-444"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142372032","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

Two critical membranes: how does the chloroplast envelope affect plant acclimation properties? 两个关键膜。叶绿体包膜如何影响植物的适应性？

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae436

Annalisa John, Isabel Keller, Katharina W Ebel, H Ekkehard Neuhaus

引用次数: 0

Multi-scale phenotyping of senescence-related changes in roots of rapeseed in response to nitrate limitation. 针对硝酸盐限制对油菜根系衰老相关变化的多尺度表型分析。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae417

Maxence James, Céline Masclaux-Daubresse, Thierry Balliau, Anne Marmagne, Fabien Chardon, Jacques Trouverie, Philippe Etienne

{"title":"Multi-scale phenotyping of senescence-related changes in roots of rapeseed in response to nitrate limitation.","authors":"Maxence James, Céline Masclaux-Daubresse, Thierry Balliau, Anne Marmagne, Fabien Chardon, Jacques Trouverie, Philippe Etienne","doi":"10.1093/jxb/erae417","DOIUrl":"10.1093/jxb/erae417","url":null,"abstract":"Root senescence remains largely unexplored. In this study, the time-course of the morphological, metabolic, and proteomic changes occurring with root aging were investigated, providing a comprehensive picture of the root senescence program. We found novel senescence-related markers for the characterization of the developmental stage of root tissues. The rapeseed root system is unique in that it consists of the taproot and lateral roots. Our study confirmed that the taproot, which transiently accumulates large quantities of starch and proteins, is specifically dedicated to nutrient storage and remobilization, while the lateral roots are mainly dedicated to nutrient uptake. Proteomic data from the taproot and lateral roots highlighted the different senescence-related events that control nutrient remobilization and nutrient uptake capacities. Both the proteome and enzyme activities revealed senescence-induced proteases and nucleotide catabolic enzymes that deserve attention as they may play important roles in nutrient remobilization efficiency in rapeseed roots. Taking advantage of publicly available transcriptomic and proteomic data on senescent Arabidopsis leaves, we provide a novel lists of senescence-related proteins specific or common to root organs and/or leaves.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"312-330"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11714756/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142390992","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

Genome-wide association study of image-based trait reveals the genetic architecture of dark-induced leaf senescence in rice. 基于图像性状的全基因组关联研究揭示了水稻暗诱导叶片衰老的遗传结构。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae391

Chao Li, Xiaoyuan Wu, Pengna Wang, Hongru Wang, Lidong Wang, Fang Sun, Cheng Lu, Huaiqing Hao, Chengcai Chu, Hai-Chun Jing

{"title":"Genome-wide association study of image-based trait reveals the genetic architecture of dark-induced leaf senescence in rice.","authors":"Chao Li, Xiaoyuan Wu, Pengna Wang, Hongru Wang, Lidong Wang, Fang Sun, Cheng Lu, Huaiqing Hao, Chengcai Chu, Hai-Chun Jing","doi":"10.1093/jxb/erae391","DOIUrl":"10.1093/jxb/erae391","url":null,"abstract":"Darkness is often used as an effective measure to induce leaf senescence. Although many senescence-related genes in rice have been reported, the genome-wide genetic architecture underlying leaf senescence remains poorly understood. In our study, indica and japonica rice showed contrasting responses to dark-induced leaf senescence (DILS). Genome-wide association studies (GWAS) combined with transcriptomic analyses revealed 57, 97, and 48 loci involved in the regulation of the onset, progression, and ending of DILS, respectively. Haplotype analyses showed that the senescence-related loci differentially accumulated in indica and japonica accessions and functioned additively to regulate DILS. A total of 357 candidate genes were identified that are involved in various senescence-related processes such as lipid and amino acid catabolism, photosynthesis, response to reactive oxygen species, and regulation of defence response. In addition, functional analyses of candidate genes revealed that OsMYB21 positively regulates the onset of DILS, while OsSUB1B negatively regulates its progression. Thus, our results provide new insights into the genetic regulation of DILS in rice.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"331-345"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289024","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

Genetic architecture of phosphorus use efficiency across diverse environmental conditions: insights from maize elite and landrace lines. 不同环境条件下磷利用效率的遗传结构：玉米精英品系和陆地品系的启示。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae431

Sandra Roller, Tobias Würschum

{"title":"Genetic architecture of phosphorus use efficiency across diverse environmental conditions: insights from maize elite and landrace lines.","authors":"Sandra Roller, Tobias Würschum","doi":"10.1093/jxb/erae431","DOIUrl":"10.1093/jxb/erae431","url":null,"abstract":"Phosphorus is an essential nutrient for all crops. Thus, a better understanding of the genetic control of phosphorus use efficiency evident in physiological, developmental, and morphological traits and its environmental plasticity is required to establish the basis for maintaining or enhancing yield while making agriculture more sustainable. In this study, we utilized a diverse panel of maize (Zea mays L.), including 398 elite and landrace lines, phenotyped across three environments and two phosphorus fertilization treatments. We performed genome-wide association mapping for 13 traits, including phosphorus uptake and allocation, that showed a strong environment dependency in their expression. Our results highlight the complex genetic architecture of phosphorus use efficiency as well as the substantial differences between the evaluated genetic backgrounds. Despite harboring more of the identified quantitative trait loci, almost all of the favorable alleles from landraces were found to be present in at least one of the two elite heterotic groups. Notably, we also observed trait-specific genetic control even among biologically related characteristics, as well as a substantial plasticity of the genetic architecture of several traits in response to the environment and phosphorus fertilization. Collectively, our work illustrates the difficulties in improving phosphorus use efficiency, but also presents possible solutions for the future contribution of plant breeding to improve the phosphorus cycle.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"363-380"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467316","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