Current opinion in plant biology最新文献_第2页

Conserved, yet distinct: revisiting the roles of C core vacuole/endosome tethering (CORVET) and homotypic fusion and vacuole protein sorting (HOPS) complexes in plants 保守，但独特：重新审视C核液泡/核内体系聚（CORVET）和同型融合和液泡蛋白分选（HOPS）复合物在植物中的作用

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2025-11-27 DOI: 10.1016/j.pbi.2025.102827

Graciela Veronica Castro, Cecilia Rodriguez-Furlan

{"title":"Conserved, yet distinct: revisiting the roles of C core vacuole/endosome tethering (CORVET) and homotypic fusion and vacuole protein sorting (HOPS) complexes in plants","authors":"Graciela Veronica Castro, Cecilia Rodriguez-Furlan","doi":"10.1016/j.pbi.2025.102827","DOIUrl":"10.1016/j.pbi.2025.102827","url":null,"abstract":"<div><div>The spatially constrained nature of plant cells makes them highly reliant on targeted membrane vesicle trafficking, which sustains proper cellular function, tissue organization, and overall plant growth and development. These mechanisms are regulated by small GTPases, which function assembling tethering complexes and later serve as their effectors. Tethering factors facilitate the initial contact between the target membrane and incoming vesicles, thereby playing a pivotal role in vesicle targeting and fusion. This review focuses on two tethering complexes, the class C core vacuole/endosome tethering (CORVET) and the homotypic fusion and vacuole protein sorting (HOPS) tethering complex, which have been best studied in the model plant <em>Arabidopsis thaliana</em>. The activity of these complexes has been linked to the regulation of multivesicular endosomes with the vacuole membrane. However, recent reports propose additional functions for specific HOPS subunits regulating other fusion events. Despite these advances, our understanding of HOPS/CORVET function and regulation, including the input of small GTPases, remains incomplete. Thus, in this review, we emphasize the essential role of the HOPS/CORVET tethering complex in plant growth and development while identifying key gaps for future research.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"89 ","pages":"Article 102827"},"PeriodicalIF":7.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145616606","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

Blinded by the lights? Re-examining the adaptive role of transposable elements in plants with population genomics 被灯光弄瞎了眼睛？用群体基因组学重新审视转座因子在植物中的适应性作用。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2025-12-20 DOI: 10.1016/j.pbi.2025.102846

Anne C. Roulin

{"title":"Blinded by the lights? Re-examining the adaptive role of transposable elements in plants with population genomics","authors":"Anne C. Roulin","doi":"10.1016/j.pbi.2025.102846","DOIUrl":"10.1016/j.pbi.2025.102846","url":null,"abstract":"<div><div>Transposable elements (TEs) are ubiquitous components of the genome whose mobility can be triggered by environmental stress and influenced by genotype–environment interactions. In plants, TEs constitute a substantial proportion of the genome and frequently cause large-effect mutations that impact gene regulation, methylation, and phenotype expression. These characteristics have recently positioned TEs as potential drivers of rapid local adaptation. However, this perspective is not always integrated with the broader understanding of fitness effects and neutral processes. Despite numerous associations between TEs and fitness-related traits, clear cases directly linking TE insertion, phenotype, and fitness in natural populations—i.e., genuine examples of local adaptation—remain rare in plants. Emerging population-genomic evidence presents a more complex picture: while some TE insertions may facilitate adaptation or rapid responses to environmental change, most are selected against and act as deleterious, selfish elements. The evolutionary dynamics of TEs are further modulated by genome architecture, reproductive system, and ecological context, underscoring their system-specific behavior. In this opinion piece, I argue that generalizing about the significance of TEs in local adaptation in plants is fraught with complexity and risks oversimplification. As sequencing technologies advance, integrating theoretical population genetics with large-scale comparative analyses and simulations across a wider range of species will be essential to more fully characterize the dynamics of TEs.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"89 ","pages":"Article 102846"},"PeriodicalIF":7.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145803139","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

Histone variants: Distinct building blocks of the chromatin acting at the core 组蛋白变体：核心染色质的不同组成部分

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2025-12-04 DOI: 10.1016/j.pbi.2025.102829

Vivek Hari-Sundar Gandhivel , P.V. Shivaprasad

引用次数: 0

Every step you take: How pathogens hijack host proteostasis from transcription, through translation, to degradation 你走的每一步：病原体如何劫持宿主的蛋白质平衡，从转录，到翻译，再到降解

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2025-11-22 DOI: 10.1016/j.pbi.2025.102826

Manuel González-Fuente, Margot Raffeiner, Suayib Üstün

{"title":"Every step you take: How pathogens hijack host proteostasis from transcription, through translation, to degradation","authors":"Manuel González-Fuente, Margot Raffeiner, Suayib Üstün","doi":"10.1016/j.pbi.2025.102826","DOIUrl":"10.1016/j.pbi.2025.102826","url":null,"abstract":"<div><div>Proteostasis, the regulated balance between protein synthesis and degradation, is crucial for the cellular function and survival. Disruptions in this balance caused by different internal cues and environmental stresses, including pathogen infection, lead to proteotoxicity, which can be highly detrimental or even lethal to the organisms. Pathogens, in their efforts to modulate the host physiology to accommodate their own needs, target and manipulate host proteostasis processes. The extent of pathogen-mediated manipulation of host proteostasis spans every step in the life cycle of a protein: from the transcription and maturation of its coding mRNA, to the protein turnover via the ubiquitin-proteasome system or vacuolar degradation. These diverse sophisticated strategies to manipulate the host proteostasis ultimately lead to the overaccumulation of unfunctional and misfolded proteins, causing proteotoxic stress and facilitating in most cases the pathogen colonization. In turn, plants try to cope with this pathogen-induced proteotoxicity by attenuating translation, promoting chaperon-assisted protein folding and increasing the activity of different proteolytic pathways. Here, we discuss recent advances in understanding the global picture of how pathogens modulate plant proteostasis as well as how plants counter this, which will be crucial for the future development of more tolerant crops to mitigate emerging food security threats.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"89 ","pages":"Article 102826"},"PeriodicalIF":7.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145571095","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

Divergent routes to specialization: Guard cells, myrosin cells, and beyond 分化途径：保卫细胞、黑素细胞等

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2026-01-09 DOI: 10.1016/j.pbi.2025.102853

Yuta Horiuchi, Makoto Shirakawa

{"title":"Divergent routes to specialization: Guard cells, myrosin cells, and beyond","authors":"Yuta Horiuchi, Makoto Shirakawa","doi":"10.1016/j.pbi.2025.102853","DOIUrl":"10.1016/j.pbi.2025.102853","url":null,"abstract":"<div><div>Plant cell type diversity often arises from transcriptional regulatory programs that co-opt conserved transcription factors (TFs) involved in other developmental programs. For example, the basic helix-loop-helix (bHLH) TF FAMA directs the differentiation of guard cells (GCs), and part of the FAMA regulatory network was co-opted to direct the differentiation of Brassicales-specific idioblasts known as myrosin cells (MCs). In this review, we explore how new cell types and lineage-specific innovations can be specified by the same conserved bHLH TFs through different sets of downstream targets. We discuss how two direct targets of FAMA, <em>WASABI MAKER</em> (<em>WSB</em>) and <em>STOMATAL CARPENTER 1</em> (<em>SCAP1</em>), have different effects on cell differentiation: sequential WSB–SCAP1 activation ensures GC maturation, whereas sustained WSB activity suppresses GC identity and establishes MC identity by activating the WSB target gene <em>CELL CYCLE SWITCH PROTEIN 52 A1</em>. We summarize the results of a single-cell transcriptome deep sequencing analysis that uncovered unexpected MCs in <em>Arabidopsis thaliana</em> roots that appear to be derived from phloem lineages rather than ground meristem in a process potentially regulated by the FAMA–<em>WSB</em> module, highlighting the developmental flexibility of these cell types. We discuss the finding that a FAMA-like regulator in the liverwort <em>Marchantia polymorpha</em> was co-opted for seta development, suggesting that FAMA-like factors were independently recruited multiple times across land plants. These examples collectively illustrate how conserved TFs diversify cell fates through co-option, providing a framework for addressing broader questions about cellular specialization in plants.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"89 ","pages":"Article 102853"},"PeriodicalIF":7.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145920657","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

Signaling at the interface: The cell wall, peptides, and extracellular vesicles mediate partner communication during arbuscular mycorrhizal symbiosis 界面信号：细胞壁、多肽和细胞外囊泡在丛枝菌根共生过程中介导伙伴通讯

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2025-12-26 DOI: 10.1016/j.pbi.2025.102849

Diana R. Rodriguez-Garcia , Lena Maria Müller

{"title":"Signaling at the interface: The cell wall, peptides, and extracellular vesicles mediate partner communication during arbuscular mycorrhizal symbiosis","authors":"Diana R. Rodriguez-Garcia , Lena Maria Müller","doi":"10.1016/j.pbi.2025.102849","DOIUrl":"10.1016/j.pbi.2025.102849","url":null,"abstract":"<div><div>Arbuscular mycorrhizal (AM) associations of plants and Glomeromycotina soil fungi play a crucial role in all terrestrial ecosystems. In this mutually beneficial interaction, obligate biotrophic fungi acquire photosynthetically fixed carbon from the plant, while the mutualistic fungi enhance plant access to soil nutrients. AM fungi colonize the inner tissues of host roots, where they form specialized symbiotic structures (arbuscules) within fully differentiated cortex cells that are reprogrammed to host the microbe. Given the intimate nature of the interaction, extensive partner communication at the interface of plant and fungal cells is crucial for the development and functioning of AM symbiosis. The peri-arbuscular space, a specialized apoplast compartment surrounding the arbuscules, supports not only nutrient exchange between the symbiotic partners but is also the site of extensive partner crosstalk mediated by cell wall components, receptors, signaling peptides, and extracellular vesicles. Such signaling processes in the apoplast modulate plant immune responses to enable colonization by beneficial fungi, making this compartment a key player for the establishment and maintenance of AM symbiosis. In this review, we discuss recent discoveries related to the role of partner communication in the apoplast, with a focus on peptide and cell wall signaling, as well as extracellular vesicles.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"89 ","pages":"Article 102849"},"PeriodicalIF":7.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836625","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

Some assembly required: Modularity and programmability as keys to decoupling growth-defence trade-offs in plants 一些组装要求：模块化和可编程性是解耦植物生长-防御权衡的关键。

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2026-01-14 DOI: 10.1016/j.pbi.2025.102811

Rachelle R.Q. Lee , Donghui Hu , Eunyoung Chae

{"title":"Some assembly required: Modularity and programmability as keys to decoupling growth-defence trade-offs in plants","authors":"Rachelle R.Q. Lee , Donghui Hu , Eunyoung Chae","doi":"10.1016/j.pbi.2025.102811","DOIUrl":"10.1016/j.pbi.2025.102811","url":null,"abstract":"<div><div>Growth-defence trade-off has long been considered an inevitable consequence of resource competition in plants. However, emerging evidence from autoimmune mutants and helper NLR studies reveals this paradigm to be fundamentally incomplete. Rather than simple resource limitation, plants coordinate growth-defence balance through programmable transcriptional networks centred on regulatory hubs such as the EDS1-PAD4-ADR1 (EPA) complex. Meta-analysis across diverse immune contexts demonstrates that defence and growth genes exhibit a remarkably consistent relationship, operating through segregated yet coordinated molecular modules. The discovery that ADR1 helper NLRs simultaneously enhance immune responses whilst actively suppressing growth-related genes—rather than competing passively for shared resources—exposes the coordinated nature of this trade-off. Networks downstream of ADR1 also exhibit remarkable regulatory exclusivity, and this modular organisation, combined with proof-of-concept successes in decoupling immunity from growth penalties through targeted genetic interventions, challenges the zero-sum assumption underlying current crop improvement strategies. Understanding these conserved regulatory circuits opens unprecedented opportunities for engineering optimised plant immunity without yield penalties, transforming agriculture from accepting inevitable trade-offs to programming flexible resource allocation.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"89 ","pages":"Article 102811"},"PeriodicalIF":7.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145988800","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

Multilayered regulatory control of compound leaf development 复叶发育的多层调控

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2025-12-31 DOI: 10.1016/j.pbi.2025.102847

Liangliang He , Liling Yang , Weiyue Zhao , Jianghua Chen

引用次数: 0

Metabolic mediators at the Nexus: How SAM, Acetyl-CoA, and NAD+ bridge phytohormone signaling and epigenetic regulation 代谢介质在Nexus: SAM，乙酰辅酶a和NAD+如何桥接植物激素信号和表观遗传调节

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2025-12-11 DOI: 10.1016/j.pbi.2025.102832

Yue Yu, Kai Jiang

引用次数: 0

Stretching the boundaries: Expansion microscopy a game changer in super-resolution imaging 延伸边界：扩展显微镜是超分辨率成像的游戏规则改变者

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2026-02-01 Epub Date: 2026-01-07 DOI: 10.1016/j.pbi.2025.102848

Emmanuelle M. Bayer, Magali S. Grison

{"title":"Stretching the boundaries: Expansion microscopy a game changer in super-resolution imaging","authors":"Emmanuelle M. Bayer, Magali S. Grison","doi":"10.1016/j.pbi.2025.102848","DOIUrl":"10.1016/j.pbi.2025.102848","url":null,"abstract":"<div><div>Super-resolution microscopy (SRM) has transformed the study of cellular structures, enabling imaging beyond the diffraction limit. Yet, the need for costly instrumentation has limited its accessibility. Expansion Microscopy microscopy (ExM), pioneered by Ed Boyden’s laboratory, offers an alternative by physically enlarging samples embedded within a swellable hydrogel. This simple principle makes nanoscale resolution achievable with conventional fluorescence microscopy. Since its introduction in 2015, ExM has rapidly diversified. Iterative ExM (iExM) increases resolution through repetitive expansion, chemical gel innovation enables single-step 10- to 20-fold expansion, and hybrid strategies combining ExM and SRM techniques have pushed resolution below 15 nm. ExM has now been applied to diverse biological models but its adaptation to complex plant tissues poses unique challenges due to their rigid cell walls. Recent advances in the field of plant science have started to address these obstacles, opening access to nanoscale imaging of plant cellular structures such as plasmodesmata and the mitotic spindle. In this review, we trace the development of ExM from its pioneering stages to current refinements, discuss methodological advances and hybrid approaches, examine technical limitations, and highlight emerging applications across biological models, with a particular focus on recent progress and future perspectives in plant biology.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"89 ","pages":"Article 102848"},"PeriodicalIF":7.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921185","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