Current opinion in plant biology最新文献_第5页

The natural history of transposons in plant pangenomes and panepigenomes 植物泛基因组和泛表观基因组中转座子的自然历史。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-10-27 DOI: 10.1016/j.pbi.2025.102818

Leandro Quadrana , Ian R. Henderson

引用次数: 0

Deciphering plastid retrograde signals and their roles in plant development 解读质体逆行信号及其在植物发育中的作用。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-10-18 DOI: 10.1016/j.pbi.2025.102813

Patricia León , Julio Sierra , Ryan P. McQuinn

{"title":"Deciphering plastid retrograde signals and their roles in plant development","authors":"Patricia León , Julio Sierra , Ryan P. McQuinn","doi":"10.1016/j.pbi.2025.102813","DOIUrl":"10.1016/j.pbi.2025.102813","url":null,"abstract":"<div><div>Plastids are multifunctional plant organelles, acting as crucial environmental sensors and metabolic hubs that influence plant development and responses to environmental cues. This integration depends on bidirectional communication between plastids and the nucleus. While anterograde regulation is extensively characterized, biogenic retrograde signaling arising during plastid differentiation, remains incompletely understood. Traditionally focused on chloroplasts, studies have identified tetrapyrroles such as heme as key signals. However, recent findings support carotenoid-derived apocarotenoids, particularly those from acyclic <em>cis</em>-carotenes, as emerging retrograde signals. These signals function not only under stress but also during normal chloroplast developmental transitions, such as de-etiolation, and can act as either positive or negative regulators depending on the context. Evidence from grasses suggests that chloroplast differentiation proceeds through sequential, stage-specific signals serving as developmental checkpoints. Moreover, biogenic signaling tunes nuclear gene expression through transcription factors, chromatin remodeling and posttranslational regulation. This review synthesizes current knowledge on biogenic retrograde signaling, highlighting its role in plastid differentiation, development and adaptation. We emphasize the emerging roles of apocarotenoids, highly sensitive to metabolic and environmental conditions, as potential retrograde signals. We highlight that broader studies on different plastid types, novel metabolites and regulatory networks are essential to unravel the complexity of plastid-to-nucleus communication and its key roles in plant morphogenesis and adaptation to environmental changes.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"88 ","pages":"Article 102813"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145328226","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

Arabinogalactan proteins: Decoding the multifaceted roles in plant reproduction 阿拉伯半乳聚糖蛋白：解码植物繁殖中的多方面作用

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-09-25 DOI: 10.1016/j.pbi.2025.102800

Jessy Silva , Diana Moreira , Maria João Ferreira , Ana Marta Pereira , Luís Gustavo Pereira , Sílvia Coimbra

{"title":"Arabinogalactan proteins: Decoding the multifaceted roles in plant reproduction","authors":"Jessy Silva , Diana Moreira , Maria João Ferreira , Ana Marta Pereira , Luís Gustavo Pereira , Sílvia Coimbra","doi":"10.1016/j.pbi.2025.102800","DOIUrl":"10.1016/j.pbi.2025.102800","url":null,"abstract":"<div><div>Arabinogalactan proteins (AGPs) are highly glycosylated cell wall proteins essential for plant growth and reproduction. AGPs are extensively decorated with arabinogalactan polysaccharides, composed primarily of arabinose and galactose, along with minor sugars such as glucuronic acid, fucose, and rhamnose. Their glycosylation patterns and glycosylphosphatidylinositol anchor enable interactions with receptors, modulating signal transduction pathways critical for reproduction. AGPs also associate with cell wall components like pectin and hemicellulose, impacting cellulose deposition and cell wall integrity. Recent research highlights AGPs' role as calcium (Ca<sup>2+</sup>) capacitors, regulating Ca<sup>2+</sup> storage and release during crucial reproductive stages. Despite significant progress, their precise molecular mechanisms remain elusive. In this review, we explore the multifaceted roles of AGPs in plant reproduction, shedding light on the recent progress in their involvement in signalling pathways, cell wall interactions, and Ca<sup>2+</sup> homeostasis, while highlighting the ongoing research needed to fully understand their mechanisms in reproductive success.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"88 ","pages":"Article 102800"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154902","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

Fortifying the frontier: cell wall modifications during plant immunity 强化边界：植物免疫过程中细胞壁的修饰

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-10-24 DOI: 10.1016/j.pbi.2025.102816

Deepak D. Bhandari , Sang-Jin Kim , Federica Brandizzi

{"title":"Fortifying the frontier: cell wall modifications during plant immunity","authors":"Deepak D. Bhandari , Sang-Jin Kim , Federica Brandizzi","doi":"10.1016/j.pbi.2025.102816","DOIUrl":"10.1016/j.pbi.2025.102816","url":null,"abstract":"<div><div>The plant cell wall (CW) was long thought to be a rigid barrier encasing the plant cell and protecting it against biotic and abiotic stressors. Different CW polysaccharides interact with each other, and modifications of either the components or organization of these polysaccharides result in impaired growth or immunity. Emerging evidence suggests that the CW is dynamically modified and reorganized based on internal and external cues. Thus, the CW is both the first barrier that pathogens encounter and the critical final step in defense signaling that leads to fortification of the CW. Here, we review recent findings on how CW components are remodeled to fortify the CW upon pathogen attack and propose a novel concept: layered CW remodeling as an immune strategy. Within this framework, we categorize three interconnected layers of CW remodeling upon pathogen attack: (i) rapid and reversible CW depositions that provide immediate but transient protection; (ii) flexible modifications with plausible signaling functions that integrate defense and surveillance; and (iii) irreversible fortifications that encase pathogen, delimiting infected cells from uninfected cells. This layered framework provides a cohesive view of how different CW modifications are integrated into, and contribute to, plant defense. We also discuss the challenges in studying CW modifications during biotic stresses and highlight important questions that remain unanswered.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"88 ","pages":"Article 102816"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358129","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

Cell-surface pattern recognition receptors: Emerging players in plant–oomycete interactions 细胞表面模式识别受体：植物与卵菌相互作用中的新兴参与者。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-10-28 DOI: 10.1016/j.pbi.2025.102819

Biying Sun , Chongyuan Zhang , Tian Wang, Suomeng Dong, Liang Kong

{"title":"Cell-surface pattern recognition receptors: Emerging players in plant–oomycete interactions","authors":"Biying Sun , Chongyuan Zhang , Tian Wang, Suomeng Dong, Liang Kong","doi":"10.1016/j.pbi.2025.102819","DOIUrl":"10.1016/j.pbi.2025.102819","url":null,"abstract":"<div><div>Plants rely on a two-tiered innate immune system to detect and fend off microorganism infections. This system comprises cell-surface pattern recognition receptors (PRRs) and intracellular nucleotide-binding leucine-rich repeat receptors (NLRs), both of which have been extensively characterized in the model plant <em>Arabidopsis thaliana</em> (hereafter Arabidopsis) and various crop species. Historically, NLR-mediated immunity has been more intensively studied in the context of plant–oomycete interactions compared to PRR-mediated immunity, primarily due to conferring stronger resistance. Recently, however, the identification of novel PRRs and elucidation of their underlying molecular mechanisms in crops have significantly heightened interest in PRR-mediated immunity against oomycetes. Meanwhile, recent advances reveal that oomycete PRRs can perceive host-derived molecules that contribute to virulence. Therefore, this review provides an overview of recent notable advances in understanding PRR-mediated immunity and signal perception during plant–oomycete interactions, with a specific emphasis on the receptor identification, signaling cascades, and molecular mechanisms governing PRR responses to oomycete infection.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"88 ","pages":"Article 102819"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145399820","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

Variations on a theme: Non-canonical mechanisms of effector-triggered immunity 主题变奏曲：效应触发免疫的非规范机制。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-10-15 DOI: 10.1016/j.pbi.2025.102812

Hee-Kyung Ahn , Jonathan D.G. Jones , Guanghao Guo

{"title":"Variations on a theme: Non-canonical mechanisms of effector-triggered immunity","authors":"Hee-Kyung Ahn , Jonathan D.G. Jones , Guanghao Guo","doi":"10.1016/j.pbi.2025.102812","DOIUrl":"10.1016/j.pbi.2025.102812","url":null,"abstract":"<div><div>Effector-triggered immunity (ETI) can be defined as immune responses activated upon specific recognition of a pathogen effector protein by its cognate plant immune receptor protein. This classic gene-for-gene model of the interaction of one pathogen effector, also known as an <em>Avirulence</em> (<em>Avr</em>) gene, with one plant immune receptor gene, known as a <em>Resistance</em> (<em>R</em>) gene has been documented since the 1950s. Since then, different types of recognition that deviate from the gene-for-gene model, for example, immune receptor pairs and immune receptor networks, have been identified. In addition, while many <em>R</em> genes encode NLR (nucleotide binding, leucine rich repeat) proteins, <em>R</em> genes that encode only parts of NLR domains, and non-NLR encoding <em>R</em> genes such as tandem kinases have been identified, broadening the immune receptor repertoire in plants. In recent years, there have been significant advances in understanding the molecular mechanisms of NLR intracellular immune receptors in plants, including how they are inhibited, activated, and regulated. This review covers recent developments in ETI initiation mechanisms and in plant NLR biology.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"88 ","pages":"Article 102812"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145307187","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

Long noncoding RNAs in plant chromatin 3D conformation dynamics 植物染色质三维构象动力学中的长链非编码rna。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-10-28 DOI: 10.1016/j.pbi.2025.102817

Emilia Feuerstein , Pablo Manavella , Martin Crespi , Lucia Ferrero , Federico Ariel

引用次数: 0

Molecular puppeteering: Roles of Ustilago maydis effectors 分子操纵：黑穗病菌效应物的作用

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-09-20 DOI: 10.1016/j.pbi.2025.102792

Chibbhi Bhaskar , Neelima Chandrasekharan , Minh-Quang Chau , Lay-Sun Ma

引用次数: 0

Building resilience by cultivating difference: A role for noise in development 通过培养差异来建立弹性：噪音在发展中的作用。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-10-08 DOI: 10.1016/j.pbi.2025.102809

Cassandra Maranas, Jennifer L. Nemhauser

引用次数: 0

Hydathodes at the forefront of plant immunity against vascular pathogens 水蛭在植物免疫对抗血管病原体方面处于领先地位。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-12-01 Epub Date: 2025-11-03 DOI: 10.1016/j.pbi.2025.102822

Sebastian Pfeilmeier , Misha Paauw , Nanne W. Taks , Harrold A. van den Burg

{"title":"Hydathodes at the forefront of plant immunity against vascular pathogens","authors":"Sebastian Pfeilmeier , Misha Paauw , Nanne W. Taks , Harrold A. van den Burg","doi":"10.1016/j.pbi.2025.102822","DOIUrl":"10.1016/j.pbi.2025.102822","url":null,"abstract":"<div><div>Hydathodes are tiny plant organs that form an interface between the leaf surface and xylem vasculature. They facilitate excretion of xylem fluid under conditions when leaf transpiration is low and root pressure high—a process known as guttation. Guttation fluid facilitates the entry of (opportunistic) bacterial pathogens into hydathodes. The notorious vascular pathogens of the bacterial genera <em>Xanthomonas</em> and <em>Clavibacter</em> have evolved unique mechanisms to colonize hydathodes and gain access to xylem and then spread systemically throughout the plant causing disease. For a long time, hydathodes were overlooked as plant immune barrier. Recent studies found that plants mount a defense response in hydathodes via known plant immune signaling hubs indicating that hydathode immunity involves both cell surface and intracellular immune receptors to restrict bacterial colonization. In hydathode-adapted <em>Xanthomonas</em> pathovars, the type III secretion system (T3SS) is critical for hydathode colonization. Through the T3SS, bacteria inject effector proteins into plant cells, indicating a role for type III-secreted effectors of <em>Xanthomonas</em> in promoting hydathode colonization. In addition, the type II secretion system (T2SS) and plant cell wall degrading enzymes secreted by <em>Xanthomonas</em> are required for bacterial translocation from the hydathode to the xylem, which indicates the presence of a physical barrier between these tissues. Future research using advanced molecular techniques give now the opportunity to deepen our understanding of hydathode colonization and hydathode immunity in order to develop novel breeding strategies against these devastating vascular bacterial pathogens.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"88 ","pages":"Article 102822"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145444250","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