Current opinion in plant biology最新文献_第3页

Rapid origin and turnover of genomic imprinting by transposable elements 转座因子基因组印记的快速起源和周转

IF 7.5 2区生物学

Current opinion in plant biology Pub Date : 2025-07-30 DOI: 10.1016/j.pbi.2025.102764

Gerardo Del Toro-De León, Claudia Köhler

引用次数: 0

The histone crosstalk code in plants: Deciphering epigenetic complexity 植物组蛋白串扰密码：解读表观遗传复杂性

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-07-26 DOI: 10.1016/j.pbi.2025.102763

Koki Nakamura, Nobutoshi Yamaguchi , Toshiro Ito

{"title":"The histone crosstalk code in plants: Deciphering epigenetic complexity","authors":"Koki Nakamura, Nobutoshi Yamaguchi , Toshiro Ito","doi":"10.1016/j.pbi.2025.102763","DOIUrl":"10.1016/j.pbi.2025.102763","url":null,"abstract":"<div><div>Histone modifications are essential regulators of chromatin architecture and gene expression in plants. Traditionally, each modification was viewed as an independent signal marking specific chromatin states. However, recent advances in epigenome profiling, genome editing, and proteomics have revealed that histone marks often function in combination, engaging in hierarchical, cooperative, and antagonistic relationships. In particular, studies in <em>Arabidopsis thaliana</em> have uncovered dynamic interactions between activating and repressive modifications, as well as their coordination with DNA methylation, histone variants, and RNA modifications. Among these, H3K4 and H3K36 methylation have emerged as key regulatory hubs that integrate developmental and environmental signals into context-dependent transcriptional responses. This growing body of evidence suggests that chromatin regulation involves not isolated modifications but rather a complex network of interdependent marks. In this review, we discuss recent examples of crosstalk between histone modifications and other regulatory layers to highlight how combinatorial chromatin regulation and its underlying molecular mechanisms contribute to transcriptional control and epigenetic responsiveness in plants. Such key insights expand our understanding of the diverse and context-dependent roles of histone modifications in plant biology.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"87 ","pages":"Article 102763"},"PeriodicalIF":8.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711006","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

Genomic balance effects on gene expression and the organism 基因组平衡对基因表达和机体的影响

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-07-22 DOI: 10.1016/j.pbi.2025.102761

James A. Birchler, Hua Yang

{"title":"Genomic balance effects on gene expression and the organism","authors":"James A. Birchler, Hua Yang","doi":"10.1016/j.pbi.2025.102761","DOIUrl":"10.1016/j.pbi.2025.102761","url":null,"abstract":"<div><div>Changes in dosage of individual chromosomes have long been known to have detrimental effects on the phenotype. Molecular analyses have revealed that aneuploidy affects gene expression across the genome with the major effects being direct and inverse correlations with the varied dosage. The inverse effect is typically more prevalent especially in aneuploids with an increased chromosomal dosage. Small heterozygous deletions removing one of the two copies of a gene typically exhibit a gene dosage effect for the included genes, but larger aneuploids exhibit the global modulations. When the inverse effect also operates on the target genes being varied in an aneuploid, dosage compensation results with expression levels similar to the corresponding genomically balanced control. Most substantial aneuploids alter the total transcriptome size but with subsets of genes deviating from the general trend. The greatest reductions in transcriptome size are associated with the most detrimental phenotypic effects on the organism. Aneuploidy effects in the endosperm involve a maternal to zygotic balance or a cumulative effect typical of other tissues. Genomic balance analyses reveal the stoichiometric effects on gene regulation, the trajectory of duplicated genes in evolution, and the eventual consequences for the organism.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"87 ","pages":"Article 102761"},"PeriodicalIF":8.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680268","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

Plant galls induced by insects: Coordinated developmental reprogramming and defence manipulation 昆虫诱导的植物瘿：协调的发育重编程和防御操作

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-07-16 DOI: 10.1016/j.pbi.2025.102757

Yan Ma , Zeynep Begüm Şen , Hing Pan Ng

引用次数: 0

Asymmetrical cell division in brown algae: How far can we take the paradigm? 褐藻的不对称细胞分裂：我们能在多大程度上采用这种范式？

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-07-15 DOI: 10.1016/j.pbi.2025.102758

Bénédicte Charrier

引用次数: 0

Asymmetry in the bryophyte, Physcomitrium patens 苔藓植物的不对称性

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-07-15 DOI: 10.1016/j.pbi.2025.102760

Prerna Singh , Chiyo Jinno , Haolin Zong , Tomomichi Fujita

{"title":"Asymmetry in the bryophyte, Physcomitrium patens","authors":"Prerna Singh , Chiyo Jinno , Haolin Zong , Tomomichi Fujita","doi":"10.1016/j.pbi.2025.102760","DOIUrl":"10.1016/j.pbi.2025.102760","url":null,"abstract":"<div><div>Cell polarity and asymmetric division are fundamental to plant development, governing growth, differentiation, and stress responses. The filamentous tissues of the moss <em>Physcomitrium patens</em> provide an excellent system to investigate these processes, as their exposed cells facilitate direct observation of cellular and intracellular dynamics. This review explores recent advances in understanding how <em>P. patens</em> maintains juvenile protonemal filaments and transitions to mature gametophores, highlighting the roles of Rho-related GTPases of plant (ROP signaling, auxin transport, and cytoskeletal dynamics in tip growth and division plane orientation. Key regulators, including transcriptional corepressors and peptide signaling components, orchestrate cell fate determination and gametophore formation. Additionally, the study of stem cell regeneration and stress-resistant brood cells provides insights into dedifferentiation and plasticity mechanisms, which involve the re-establishment and disruption of cell polarity, respectively. Our current knowledge suggests that these mechanisms collectively determine the identity and developmental trajectory of daughter cells, guiding them toward differentiation into a specific tissue or organ.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"86 ","pages":"Article 102760"},"PeriodicalIF":8.3,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633301","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

From stress to growth: Mechanical tissue interactions in developing organs 从压力到生长：器官发育中的机械组织相互作用

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-07-12 DOI: 10.1016/j.pbi.2025.102759

Benjamin P. Lapointe , Neha Sharma Kaur , Anne-Lise Routier-Kierzkowska , Agata Burian

引用次数: 0

Vacuolar signaling, biogenesis, and quality control in plants 植物液泡信号、生物发生和质量控制

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-07-01 DOI: 10.1016/j.pbi.2025.102756

Jose Julian , Yasin Dagdas

引用次数: 0

From roots to nodules: regulation of organogenesis in nitrogen-fixing symbiosis 从根到根瘤：固氮共生中器官发生的调控

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-06-28 DOI: 10.1016/j.pbi.2025.102755

Katharina Schiessl , Min-Yao Jhu

{"title":"From roots to nodules: regulation of organogenesis in nitrogen-fixing symbiosis","authors":"Katharina Schiessl , Min-Yao Jhu","doi":"10.1016/j.pbi.2025.102755","DOIUrl":"10.1016/j.pbi.2025.102755","url":null,"abstract":"<div><div>Plants in the nitrogen-fixing clade have evolved symbiotic root nodules to overcome nitrogen limitations in the soil. These nodules host nitrogen-fixing bacteria that convert atmospheric nitrogen into ammonia, supplying essential nutrients to the plant. Nodule formation is triggered by plant–bacteria interactions and relies on genetic adaptations, including the recruitment of existing regulatory pathways. The transcription factor <em>NODULE INCEPTION</em> (<em>NIN</em>) is a key regulator required for bacterial infection, nodule initiation, and organ differentiation. Nodule development shares key features with lateral root formation, particularly in organ initiation and early growth stages, as both arise from the same root tissue layers. This overlap raises intriguing questions about how nodules evolved distinct forms and functions. This review highlights recent discoveries in the molecular and cellular mechanisms of nodule development, especially in the <em>Papilionoideae</em> clade. By comparing nodules and lateral roots, we explore the regulatory changes that led to their evolutionary divergence. We highlight emerging tools—single-cell and spatial transcriptomics, and advanced imaging—that are deepening insights into nodulation, alongside phylogenomics revealing its evolutionary history.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"86 ","pages":"Article 102755"},"PeriodicalIF":8.3,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501934","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

Dynamic and spatial control of cellular activity during seed germination 种子萌发过程中细胞活动的动态和空间控制

IF 8.3 2区生物学

Current opinion in plant biology Pub Date : 2025-06-23 DOI: 10.1016/j.pbi.2025.102754

Mathew G. Lewsey , George W. Bassel , James Whelan

{"title":"Dynamic and spatial control of cellular activity during seed germination","authors":"Mathew G. Lewsey , George W. Bassel , James Whelan","doi":"10.1016/j.pbi.2025.102754","DOIUrl":"10.1016/j.pbi.2025.102754","url":null,"abstract":"<div><div>Germination is the process through which a seed activates cellular metabolism and growth. This enables the embryo to initiate the seed to seedling transition and begin to establish itself in its environment. A wide range of cellular systems are recruited during germination. Stored energy resources are consumed by heterotrophic metabolism to power cell activity, as the embryo is not yet photosynthetic, and mitochondria are assembled. The mRNAs that were transcribed and stored during seed development are translated to yield mature proteins. There is also a broad-scale structural reconfiguration of the genome and <em>de novo</em> transcription. This is achieved by the loss of repressive histone marks and DNA methylation, enabling chromatin to transition from a closed and physically protected state to an accessible state necessary for gene transcription. Signalling through the gibberellin hormone pathway, initiated in the vasculature of the radicle, drives cell expansion and thereby embryo growth. In this review, we summarise recent advances that illustrate the spatiotemporally dynamic nature of events during germination, which gives rise to the cell and tissue-specific activity that underpins germination.</div></div>","PeriodicalId":11003,"journal":{"name":"Current opinion in plant biology","volume":"86 ","pages":"Article 102754"},"PeriodicalIF":8.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144364423","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