Journal of Experimental Botany最新文献_第8页

Correction to: Invasion of the stigma by oomycete pathogenic hyphae or pollen tubes: striking similarities and differences. 更正：卵菌致病菌丝或花粉管入侵柱头：惊人的相似之处和不同之处。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-12-03 DOI: 10.1093/jxb/erae478

引用次数: 0

Apomixis at a high resolution: unravelling diplospory in Asteraceae. Apomixis at a high resolution: unravelling diplospory in Asteraceae.

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-12-03 DOI: 10.1093/jxb/erae477

Letizia Cornaro, Camilla Banfi, Alex Cavalleri, Peter J van Dijk, Tatyana Radoeva, Mara Cucinotta, Lucia Colombo

引用次数: 0

Linking phenology, harvest index and genetics to improve chickpea grain yield.

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-29 DOI: 10.1093/jxb/erae487

R Gimenez, L Lake, M C Cossani, R Ortega Martinez, J E Hayes, M F Dreccer, R French, J L Weller, V O Sadras

{"title":"Linking phenology, harvest index and genetics to improve chickpea grain yield.","authors":"R Gimenez, L Lake, M C Cossani, R Ortega Martinez, J E Hayes, M F Dreccer, R French, J L Weller, V O Sadras","doi":"10.1093/jxb/erae487","DOIUrl":"https://doi.org/10.1093/jxb/erae487","url":null,"abstract":"Understanding phenology and its regulation is central for the agronomic adaptation of chickpea. We grew 24 chickpea genotypes in 12 environments to analyse: the environmental and genotypic drivers of phenology; associations between phenology and yield; and phenotypes associated with allelic variants of three flowering related candidate loci: CaELF3a; a cluster of three FT genes on chromosome 3; and an orthologue of the floral promoter GIGANTEA on chromosome 4. A simple model with 3 genotype-specific parameters explained the differences in flowering response to daylength. Environmental factors causing flower abortion, such as low temperature and radiation and high humidity, led to a longer flowering-to-podding interval. Late podding associated with poor partition to grain, limiting yield in favourable environments. Sonali, carrying the early allele of Caelf3a (elf3a), was generally the earliest to set pod, had low biomass but the highest harvest index. Genotypes combining the early variants of GIGANTEA and FT orthologues featured early reproduction and high harvest index, returning high yield in favourable environments. Our results emphasise the importance of pod set, rather than flowering, as a target for breeding, agronomic, and modelling applications.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142769502","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

Multiple gating steps in pollination lock the species specificity. 授粉过程中的多个门控步骤锁定了物种特异性。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-29 DOI: 10.1093/jxb/erae488

Yong-Jun He, Shuo Xu, Kai-Mei Zhang, Yang Zhang, Xiang-Jian Liu, Chen Liu

{"title":"Multiple gating steps in pollination lock the species specificity.","authors":"Yong-Jun He, Shuo Xu, Kai-Mei Zhang, Yang Zhang, Xiang-Jian Liu, Chen Liu","doi":"10.1093/jxb/erae488","DOIUrl":"https://doi.org/10.1093/jxb/erae488","url":null,"abstract":"In flowering plants, pollen grain must undergo a series of critical processes, including adhesion, hydration, and germination, which are dependent on the stigma, to develop a pollen tube. This pollen tube then penetrates the stigma to reach the internal tissues of pistil, facilitating the transport of non-motile sperm cells to the embryo sac for fertilization. However, the dry stigma, characterized by the absence of an exudate that typically envelops the wet stigma, functions as a multi-layered filter in adhesion, hydration, germination and penetration that permits the acceptance of compatible pollen or tubes while rejecting incompatible ones, thereby protecting the embryo sac from ineffective fertilization and maintaining species specificity. Given the significance of these selective events, related research has consistently been at the forefront of reproductive studies, with notable advancements being made in recent times. In this review, we systematically synthesize the selective events and provide comprehensive, up-to-date summaries of occurrences on dry stigmas with a particular focus on the Brassicaceae family, following the chronological sequence of these events. Our objective is to update and elucidate the critical checkpoints within the pollination, identify unresolved questions, and propose potential avenues for future research in other plant families.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823914","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 role of RNA polymerase II transcript elongation factors in plant stress responses.

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-29 DOI: 10.1093/jxb/erae472

Klaus D Grasser

引用次数: 0

Catalytically inactive subgroup VIII receptor-like cytoplasmic kinases regulate the immune-triggered oxidative burst in Arabidopsis thaliana. 催化不活跃的第八亚群受体样细胞质激酶调控拟南芥中免疫触发的氧化猝灭。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-29 DOI: 10.1093/jxb/erae486

Márcia Gonçalves Dias, Thakshila Dharmasena, Carmen Gonzalez-Ferrer, Jan Eric Maika, Virginia Natali Miguel, Ruoqi Dou, Maria Camila Rodriguez Gallo, Melissa Bredow, Kristen Rose Siegel, R Glen Uhrig, Rüdiger Simon, Jacqueline Monaghan

{"title":"Catalytically inactive subgroup VIII receptor-like cytoplasmic kinases regulate the immune-triggered oxidative burst in Arabidopsis thaliana.","authors":"Márcia Gonçalves Dias, Thakshila Dharmasena, Carmen Gonzalez-Ferrer, Jan Eric Maika, Virginia Natali Miguel, Ruoqi Dou, Maria Camila Rodriguez Gallo, Melissa Bredow, Kristen Rose Siegel, R Glen Uhrig, Rüdiger Simon, Jacqueline Monaghan","doi":"10.1093/jxb/erae486","DOIUrl":"https://doi.org/10.1093/jxb/erae486","url":null,"abstract":"Protein kinases are key components of multiple cell signaling pathways. Several receptor-like cytoplasmic kinases (RLCKs) have demonstrated roles in immune and developmental signaling across various plant species, making them of interest in the study of phosphorylation-based signal relay. Here, we present our investigation of a subgroup of RLCKs in Arabidopsis thaliana. Specifically, we focus on subgroup VIII RLCKs: MAZ and its paralog CARK6, as well as CARK7 and its paralog CARK9. We found that both MAZ and CARK7 associate with the calcium-dependent protein kinase CPK28 in planta, and furthermore that CPK28 phosphorylates both MAZ and CARK7 on multiple residues in areas that are known to be critical for protein kinase activation. Genetic analysis suggests redundant roles for MAZ and CARK6 as negative regulators of the immune-triggered oxidative burst. We find evidence that supports homo- and hetero-dimerization between CARK7 and MAZ, which may be a general feature of this subgroup. Multiple biochemical experiments suggest that neither MAZ nor CARK7 demonstrate catalytic protein kinase activity in vitro. Interestingly, we find that a mutant variant of MAZ incapable of protein kinase activity can complement maz-1 mutants, suggesting noncatalytic roles of MAZ in planta. Overall, our study identifies subgroup VIII RLCKs as new players in Arabidopsis immune signaling and highlights the importance of noncatalytic functions of protein kinases.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823832","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

Toward understanding grapevine responses to climate change: a multistress and holistic approach. 了解葡萄对气候变化的反应：多胁迫和整体方法。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-26 DOI: 10.1093/jxb/erae482

Johann Martínez-Lüscher, José Tomás Matus, Eric Gomès, Inmaculada Pascual

{"title":"Toward understanding grapevine responses to climate change: a multistress and holistic approach.","authors":"Johann Martínez-Lüscher, José Tomás Matus, Eric Gomès, Inmaculada Pascual","doi":"10.1093/jxb/erae482","DOIUrl":"https://doi.org/10.1093/jxb/erae482","url":null,"abstract":"Recent research has extensively covered the effects of climate change factors, such as elevated CO2, rising temperatures and water deficit, on grapevine (Vitis spp.) biology. However, the assessment of the impacts of multiple climate change-related stresses on this crop remains complex due to the large number of interactive effects among environmental factors and the regulatory mechanisms that underlie these effects. Consequently, there is a substantial discrepancy between the number of studies conducted with a single or two factors simultaneously, and those with a more holistic approach. This review focuses on how climate change factors will coexist across the viticultural areas of the globe and summarises the main interactive mechanisms affecting crop performance. We highlight how the rise in temperatures will be enhanced when dealing with specific periods, such as the ripening months. Changes in crop phenology in response to temperature have been a major focus of most studies. However, how these physiological shifts may result in deleterious effects on yield and quality deserves further research. Rising temperatures will most certainly continue to represent the most imminent threat to viticulture due to its effects on grape phenology, composition and crop water requirements. Nevertheless, elevated CO2 may offer some relief through increased water use efficiency, as recent studies have shown. Within the repertoire of regulatory mechanisms that plants possess, hormones play a major role explaining the effects of combined stresses due to their crosstalk. In fact, growth regulators fine tune stress responses depending on the multiple stresses present. The paper focuses on the multistress responses mediated by ABA and jasmonate, and on the intricate interconnections of signalling among the different plant hormones.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716129","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

Ethylene modulates wheat response to phosphate deficiency. 乙烯调节小麦对磷酸盐缺乏的反应。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-25 DOI: 10.1093/jxb/erae483

Ruonan Wang, Andrew F Bowerman, Yinglong Chen, Lu Zheng, Renfang Shen, Barry Pogson, Ping Lan

{"title":"Ethylene modulates wheat response to phosphate deficiency.","authors":"Ruonan Wang, Andrew F Bowerman, Yinglong Chen, Lu Zheng, Renfang Shen, Barry Pogson, Ping Lan","doi":"10.1093/jxb/erae483","DOIUrl":"https://doi.org/10.1093/jxb/erae483","url":null,"abstract":"Ethylene involves in the response to P deficiency in some model plants, but its relevance to wheat remains limited. Following our recent study demonstrating the role of differentially expressed genes (DEGs) encoding ethylene response factors (ERFs) in response to P starvation in wheat, this study aims to investigate the remodelling of ethylene pathway and the physiological roles of ethylene in wheat under P deficiency using transcriptome analysis and the addition of exogenous ethylene analogue ethephon or ethylene inhibitors. ERFs with at least a two-fold change upon P deficiency were biasedly enriched on chromosome 4 B. A group of genes encoding ACC synthase and ACC oxidase were upregulated under P starvation, indicating an increase in ACC and ethylene content, which was verified by biochemical measurements and gas chromatography-mass spectrometry analysis. Under P deficiency, both root and shoot biomass decreased with the application of exogenous ethephon or ethylene inhibitors, while root fork numbers and root surface area decreased upon ethephon treatment. The phosphate (Pi) concentrations in roots and old leaves increased with ethephon treatment, and it's redistribution in roots and younger leaves was altered under Pi starvation. Our findings could serve as a guideline for breeding germplasm with high Pi efficiency.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":""},"PeriodicalIF":5.6,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142710378","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

Photoperiodic control of growth and reproduction in non-flowering plants. 光周期控制非开花植物的生长和繁殖。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-22 DOI: 10.1093/jxb/erae471

Durga Prasad Biswal, Kishore Chandra Sekhar Panigrahi

引用次数: 0

Gibberellins: Extending the Green Revolution. 赤霉素：扩展绿色革命。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2024-11-21 DOI: 10.1093/jxb/erae476

Janlo M Robil, Prameela Awale, Paula McSteen, Norman B Best

引用次数: 0