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Plant cell size: Links to cell cycle, differentiation and ploidy Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2024-03-13 Sara C Pinto, Boris Stojilković, Xinyu Zhang, Robert Sablowski
Cell size affects many processes, including exchange of nutrients and external signals, cell division and tissue mechanics. Across eukaryotes, cells have evolved mechanisms that assess their own size to inform processes such as cell cycle progression or gene expression. Here, we review recent progress in understanding plant cell size regulation and its implications, relating these findings to work
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Studying plant vascular development using single-cell approaches Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2024-03-12 Claudia von der Mark, Max Minne, Bert De Rybel
Vascular cells form a highly complex and heterogeneous tissue. Its composition, function, shape, and arrangement vary with the developmental stage and between organs and species. Understanding the transcriptional regulation underpinning this complexity thus requires a high-resolution technique that is capable of capturing rapid events during vascular cell formation. Single-cell and single-nucleus RNA
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Tipping the balance: The dynamics of stem cell maintenance and stress responses in plant meristems Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2024-01-23 Jian Zeng, Xin Geng, Zhong Zhao, Wenkun Zhou
Plant meristems contain pools of dividing stem cells that produce new organs for plant growth and development. Environmental factors, including biotic and abiotic stresses and nutrient availability, affect meristem activity and thus the architecture of roots and shoots; understanding how meristems react to changing environmental conditions will shed light on how plants optimize nutrient acquisition
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The Ferroptosis landscape of biotic interactions in plants Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-12-23 Qing Shen, Naweed I. Naqvi
Ferroptosis is a cell death pathway that relies on iron- and reactive oxygen species-dependent lethal accumulation of lipid peroxides in the cytosol and/or plasma membrane. Interestingly, Ferroptosis is widely involved in modulating such regulated fatality in the host plant as well as the pathogen albeit with different outcome, dynamics, and interesting metabolic adaptations. Although the basic mechanism
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Shared infection strategy of a fungal pathogen across diverse lineages of land plants, the Fusarium example Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-12-23 Avinash Kamble, Santiago Michavila, Selena Gimenez-Ibanez, Amey Redkar
Plants engage with a wide variety of microorganisms either in parasitic or mutualistic relationships, which have helped them to adapt to terrestrial ecosystems. Microbial interactions have driven plant evolution and led to the emergence of complex interaction outcomes via suppression of host defenses by evolving pathogens. The evolution of plant-microbe interactions is shaped by conserved host and
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R we there yet? Advances in cloning resistance genes for engineering immunity in crop plants Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-12-20 Renjie Chen, Karthick Gajendiran, Brande B.H. Wulff
Over the past three decades, significant progress has been made in the field of resistance (R) gene cloning. Advances in recombinant DNA technology, genome sequencing, bioinformatics, plant transformation and plant husbandry have facilitated the transition from cloning R genes in model species to crop plants and their wild relatives. To date, researchers have isolated more than 450 R genes that play
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The core microbiota across the green lineage Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-12-05 Paloma Durán
The study of plant–microbe interactions and the characterization of plant-associated microbiota has been the focus of plant researchers in the last decades due to its importance for plant health in natural conditions. Here, I explore the persistent core microbiota associated with different plant species and across different environments by performing a meta-analysis of publicly available datasets.
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Calcium homeostasis and signaling in plant immunity Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-12-02 Chao Wang, Sheng Luan
Calcium (Ca2+) signaling consists of three steps: (1) initiation of a change in cellular Ca2+ concentration in response to a stimulus, (2) recognition of the change through direct binding of Ca2+ by its sensors, (3) transduction of the signal to elicit downstream responses. Recent studies have uncovered a central role for Ca2+ signaling in both layers of immune responses initiated by plasma membrane
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Hormonal and genetic control of pluripotency in bryophyte model systems Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-12-02 Eduardo Flores-Sandoval, Ryuichi Nishihama, John L. Bowman
Land plant meristems are reservoirs of pluripotent stem cells where new tissues emerge, grow and eventually differentiate into specific cell identities. Compared to algae, where cells are produced in two-dimensional tissues via tip or marginal growth, land plants have meristems that allow three-dimensional growth for successful exploration of the terrestrial environment. In land plants, meristem maintenance
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Plant and microbial features governing an endophytic lifestyle Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-11-06 Kathrin Wippel
Beneficial microorganisms colonizing internal plant tissues, the endophytes, support their host through plant growth promotion, pathogen protection, and abiotic stress alleviation. Their efficient application in agriculture requires the understanding of the molecular mechanisms and environmental conditions that facilitate in planta accommodation. Accumulating evidence reveals that commensal microorganisms
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Bryo-FIGHTs: Emerging insights and principles acquired from non-vascular plant-pathogen interactions Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-11-04 Hyeon-Min Jeong, Henrietta Patterson, Philip Carella
Since the dawn of land plant evolution, pathogenic microbes have impacted plant health and threatened their survival. Though much of our knowledge on plant-pathogen interactions is derived from flowering plants, emerging research leveraging evolutionarily divergent non-vascular/non-seed bryophytes is beginning to shed light on the history and diversity of plant immune and infection processes. Here
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The exocyst complex is an evolutionary battleground in plant-microbe interactions Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-11-03 Juan Carlos De la Concepcion
Exocytosis is a conserved trafficking pathway that transports secretory vesicles to the extracellular space, replenishes the plasma membrane and is essential for establishing cell polarity. Its spatiotemporal regulation is mediated by an evolutionary conserved octameric tethering complex, the exocyst. In plants, certain subunits of this complex have diversified and acquired multiple functions, including
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Functional diversity of Toll/interleukin-1 receptor domains in flowering plants and its translational potential Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-27 Sam C. Ogden, Marc T. Nishimura, Dmitry Lapin
Across the Tree of Life, innate immunity and cell death mechanisms protect hosts from potential pathogens. In prokaryotes, animals, and flowering plants, these functions are often mediated by Toll/interleukin-1 receptor (TIR) domain proteins. Here, we discuss recent analyses of TIR biology in flowering plants, revealing (i) TIR functions beyond pathogen recognition, e.g. in the spatial control of immunity
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Tunable recurrent priming of lateral roots in Arabidopsis: More than just a clock? Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-17 Blanca Jazmin Reyes-Hernández, Alexis Maizel
Lateral root (LR) formation in Arabidopsis is a continuous, repetitive, post-embryonic process regulated by a series of coordinated events and tuned by the environment. It shapes the root system, enabling plants to efficiently explore soil resources and adapt to changing environmental conditions. Although the auxin-regulated modules responsible for LR morphogenesis and emergence are well documented
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Cellular and molecular basis of symbiotic nodule development Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-17 Zhenpeng Luo, Haiyue Liu, Fang Xie
Root nodule development plays a vital role in establishing the mutualistic relationship between legumes and nitrogen-fixing rhizobia. Two primary processes are involved in nodule development: formative cell divisions in the root cortex and the subsequent differentiation of nodule cells. The first process involves the mitotic reactivation of differentiated root cortex cells to form nodule primordium
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Unlocking nature's (sub)cellular symphony: Phase separation in plant meristems Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-18 Ali Eljebbawi, Anika Dolata, Vivien I. Strotmann, Yvonne Stahl
Plant development is based on the balance of stem cell maintenance and differentiation in the shoot and root meristems. The necessary cell fate decisions are regulated by intricate networks of proteins and biomolecules within plant cells and require robust and dynamic compartmentalization strategies, including liquid-liquid phase separation (LLPS), which allows the formation of membrane-less compartments
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Till death do us pair: Co-evolution of plant–necrotroph interactions Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-17 Mark C. Derbyshire, Sylvain Raffaele
Plants use programmed cell death as a potent defense response against biotrophic pathogens that require living host cells to thrive. However, cell death can promote infection by necrotrophic pathogens. This discrepancy creates specific co-evolutionary dynamics in the interaction between plants and necrotrophs. Necrotrophic pathogens produce diverse cell death-inducing effectors that act redundantly
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Developing for nutrient uptake: Induced organogenesis in parasitic plants and root nodule symbiosis Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-11 Songkui Cui, Shoko Inaba, Takuya Suzaki, Satoko Yoshida
Plants have evolved diverse strategies to meet their nutritional needs. Parasitic plants employ haustoria, specialized structures that facilitate invasion of host plants and nutrient acquisition. Legumes have adapted to nitrogen-limited conditions by developing nodules that accommodate nitrogen-fixing rhizobia. The formation of both haustoria and nodules is induced by signals originating from the interacting
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Editorial overview: Delving into organizational principles of plant genomes Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-11 Hidetoshi Saze, Nathan Springer
Abstract not available
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How to utilize comparative transcriptomics to dissect morphological diversity in plants Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-05 Siyu Li, Hokuto Nakayama, Neelima R. Sinha
Comparative transcriptomics has emerged as a powerful approach that allows us to unravel the genetic basis of organ morphogenesis and its diversification processes during evolution. However, the application of comparative transcriptomics in studying plant morphological diversity addresses challenges such as identifying homologous gene pairs, selecting appropriate developmental stages for comparison
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Jasmonates and salicylic acid: Evolution of defense hormones in land plants Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-10-04 Isabel Monte
The emergence of plant hormone signaling pathways is deeply intertwined with land plant evolution. In angiosperms, two plant hormones, salicylic Acid (SA) and Jasmonates (JAs), play a key role in plant defense, where JAs-mediated defenses are typically activated in response to herbivores and necrotrophic pathogens, whereas SA is prioritized against hemi/biotrophic pathogens. Thus, studying the evolution
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EVO-MPMI: From fundamental science to practical applications Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-30 Sebastian Schornack, Sophien Kamoun
In the unending coevolutionary dance between plants and microbes, each player impacts the evolution of the other. Here, we provide an overview of the burgeoning field of evolutionary molecular plant–microbe interactions (EVO-MPMI)—the study of mechanisms of plant–microbe interactions in the context of their evolutionary history—tracing its progression from foundational science to practical implementation
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Editorial overview: Dynamics underlying plasticity and robustness Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-28 Bert De Rybel, Juan Dong
Abstract not available
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Pick a side: Integrating gene expression and mechanical forces to polarize aerial organs Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-27 Sarah G. Choudury, Aman Y. Husbands
How organs acquire their shapes is a central question in developmental biology. In plants, aerial lateral organs such as leaves initiate at the flanks of the growing meristem as dome-shaped primordia. These simple structures then grow out along multiple polarity axes to achieve a dizzying array of final shapes. Many of the hormone signaling pathways and genetic interactions that influence growth along
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At the root of plant symbioses: Untangling the genetic mechanisms behind mutualistic associations Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-26 Lebreton A, Keller J
Mutualistic interactions between plants and microorganisms shape the continuous evolution and adaptation of plants such as to the terrestrial environment that was a founding event of subsequent life on land. Such interactions also play a central role in the natural and agricultural ecosystems and are of primary importance for a sustainable future. To boost plant's productivity and resistance to biotic
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Connecting emerging with existing vasculature above and below ground Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-27 Noel Blanco-Touriñán, Christian S. Hardtke
The vascular system was essential for plants to colonize land by facilitating the transport of water, nutrients, and minerals throughout the body. Our current knowledge on the molecular-genetic control of vascular tissue specification and differentiation is mostly based on studies in the Arabidopsis primary root. To what degree these regulatory mechanisms in the root meristem can be extrapolated to
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Specificity and breadth of plant specialized metabolite–microbe interactions Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-22 Daniel J. Kliebenstein
Plant specialized metabolites shape plant interactions with the environment including plant–microbe interactions. While we often group compounds into generic classes, it is the precise structure of a compound that creates a specific role in plant–microbe or–pathogen interactions. Critically, the structure guides definitive targets in individual interactions, yet single compounds are not limited to
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C4 leaf development and evolution Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-22 Chi-Fa Huang, Wen-Yu Liu, Chun-Ping Yu, Shu-Hsing Wu, Maurice S.B. Ku, Wen-Hsiung Li
C4 photosynthesis is more efficient than C3 photosynthesis for two reasons. First, C4 plants have evolved efficient C4 enzymes to suppress wasteful photorespiration and enhance CO2 fixation. Second, C4 leaves have Kranz anatomy in which the veins are surrounded by one layer of bundle sheath (BS) cells and one layer of mesophyll (M) cells. The BS and M cells are functionally well differentiated and
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Whispers in the dark: Signals regulating underground plant–plant interactions Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-21 Kaori Yoneyama, Tom Bennett
Plants are able to actively detect and respond to the presence in neighboring plants, in order to optimize their physiology to promote survival and reproduction despite the presence of competing organisms. A key but still poorly understood mechanism for neighbor detection is through the perception of root exudates. In this review, we explore recent findings on the role of root exudates in plant–plant
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Hormonal regulation of inflorescence and intercalary meristems in grasses Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-20 Prameela Awale, Paula McSteen
Hormones played a fundamental role in improvement of yield in cereal grasses. Natural variants affecting gibberellic acid (GA) and auxin pathways were used to breed semi-dwarf varieties of rice, wheat, and sorghum, during the “Green Revolution” in the 20th century. Since then, variants with altered GA and cytokinin homeostasis have been used to breed cereals with increased grain number. These yield
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Structural insights of cell wall integrity signaling during development and immunity Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-20 Hyun Kyung Lee, Julia Santiago
A communication system between plant cells and their surrounding cell wall is required to coordinate development, immunity, and the integration of environmental cues. This communication network is facilitated by a large pool of membrane- and cell-wall-anchored proteins that can potentially interact with the matrix or its fragments, promoting cell wall patterning or eliciting cellular responses that
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Regulation of PIN polarity in response to abiotic stress Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-14 Manvi Sharma, Petra Marhava
Plants have evolved robust adaptive mechanisms to withstand the ever-changing environment. Tightly regulated distribution of the hormone auxin throughout the plant body controls an impressive variety of developmental processes that tailor plant growth and morphology to environmental conditions. The proper flow and directionality of auxin between cells is mainly governed by asymmetrically localized
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The stomatal fates: Understanding initiation and enforcement of stomatal cell fate transitions Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-13 Margot E. Smit, Dominique C. Bergmann
In the stomatal lineage, repeated arcs of initiation, stem-cell proliferation, and terminal cell fate commitment are displayed on the surface of aerial organs. Over the past two decades, the core transcription and signaling elements that guide cell divisions, patterning, and fate transitions were defined. Here we highlight recent work that extends the core using a variety of cutting-edge techniques
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Illuminating the path to shoot meristem regeneration: Molecular insights into reprogramming cells into stem cells Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-13 Yetkin Çaka Ince, Keiko Sugimoto
Plant cells possess the ability to dedifferentiate and reprogram into stem cell-like populations, enabling the regeneration of new organs. However, the maintenance of stem cells relies on specialized microenvironments composed of distinct cell populations with specific functions. Consequently, the regeneration process necessitates the orchestrated regulation of multiple pathways across diverse cellular
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Evolution of immunity networks across embryophytes Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-11 Inés Ponce de León
Land plants (embryophytes), including vascular (tracheophytes) and non-vascular plants (bryophytes), co-evolved with microorganisms since descendants of an algal ancestor colonized terrestrial habitats around 500 million years ago. To cope with microbial pathogen infections, embryophytes evolved a complex immune system for pathogen perception and activation of defenses. With the growing number of sequenced
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Resolving plant development in space and time with single-cell genomics Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-09 Trevor M. Nolan, Rachel Shahan
Single-cell genomics technologies are ushering in a new research era. In this review, we summarize the benefits and current challenges of using these technologies to probe the transcriptional regulation of plant development. In addition to profiling cells at a single snapshot in time, researchers have recently produced time-resolved datasets to map cell responses to stimuli. Live-imaging and spatial
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Innovations in two genes kickstarted the evolution of nitrogen-fixing nodules Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-09 Rene Geurts, Rik Huisman
The root nodule symbiosis between plants and nitrogen-fixing bacteria is a fascinating trait limited to several plant species. Given the agronomic potential of transferring this symbiosis to nonleguminous crops, the symbiosis has attracted researchers’ attention for over a century. The origins of this symbiosis can be traced back to a single ancestor, around 110 million years ago. Recent findings have
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Improving RNA-based crop protection through nanotechnology and insights from cross-kingdom RNA trafficking Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-09 Angela Chen, Lida Halilovic, Jia-Hong Shay, Aline Koch, Neena Mitter, Hailing Jin
Spray-induced gene silencing (SIGS) is a powerful and eco-friendly method for crop protection. Based off the discovery of RNA uptake ability in many fungal pathogens, the application of exogenous RNAs targeting pathogen/pest genes results in gene silencing and infection inhibition. However, SIGS remains hindered by the rapid degradation of RNA in the environment. As extracellular vesicles are used
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SERKs and NIKs: Coreceptors or signaling hubs in a complex crosstalk between growth and defense? Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-08 Elizabeth P.B. Fontes
SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASES (SERKs) and NUCLEAR SHUTTLE PROTEIN-INTERACTING KINASES (NIKs) belong to superfamily II of leucine-rich repeat receptor-like kinases, which share cytosolic kinase conservation and a similar ectodomain configuration. SERKs have been extensively demonstrated to function as coreceptors of receptor-like kinases, which sense biotic or developmental signals to
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Complex peptide hormone signaling in plant stem cells Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-04 Reid Selby, Daniel S. Jones
Peptide hormones influence diverse aspects of plant development through highly coordinated cell-cell signaling pathways. Many peptide hormone families play key roles in stem cell maintenance across land plants. In this review, we focus on recent work in two conserved peptide hormone families, CLAVATA3/EMBRYO-SURROUNDING REGION (CLEs) and ROOT MERISTEM GROWTH FACTOR (RGFs), and their roles in regulating
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Rapid auxin signaling: Unknowns old and new Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-09-02 Lukáš Fiedler, Jiří Friml
To respond to auxin, the chief orchestrator of their multicellularity, plants evolved multiple receptor systems and signal transduction cascades. Despite decades of research, however, we are still lacking a satisfactory synthesis of various auxin signaling mechanisms. The chief discrepancy and historical controversy of the field is that of rapid and slow auxin effects on plant physiology and development
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Editorial overview: Tapping into the secret life of small molecules: Addressing the “dark matter” of metabolomes Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-08-29 Aleksandra Skirycz, Alexandra Jazz Dickinson
Abstract not available
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Organogenic events during gynoecium and fruit development in Arabidopsis Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-08-24 Juan Ramos-Pulido, Stefan de Folter
Angiosperms are the most successful group of land plants. This success is mainly due to the gynoecium, the innermost whorl of the flower. In Arabidopsis, the gynoecium is a syncarpic structure formed by two congenitally fused carpels. At the fusion edges of the carpels, the carpel margin meristem forms. This quasi-meristem is important for medial-tissue development, including the ovules. After the
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Post-transcriptional and translational regulation of plant gene expression by transposons Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-08-22 Qiuxin Kan, Qing Li
Transposons are mobile DNA sequences that can move within the genome and integrate in new genomic locations. They are widespread in eukaryotes and prokaryotes and can influence gene expression when landing within or nearby a gene. Although transposon-induced regulation of gene expression at the transcriptional level has been extensively studied, there has been less focus on regulation at the post-transcriptional
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Insights into the role of phytohormones in plant female germline cell specification Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-08-19 Hanyang Cai, Liping Liu, Suzhuo Ma, Mohammad Aslam, Yuan Qin
Germline specification is a fundamental process in plant reproduction, and the Megaspore Mother Cell (MMC), is a critical cell that differentiates and develops into the female gametophyte. While numerous studies have investigated the molecular mechanisms underlying female germline specification, previous reviews have mainly focused on gene regulatory networks, epigenetic pathways, and small RNAs, neglecting
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Stochasticity in gene body methylation Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-08-17 Constantin Goeldel, Frank Johannes
Gene body methylation (gbM) is a widely conserved epigenetic feature of plant genomes. Efforts to delineate the mechanisms by which gbM contributes to transcriptional regulation remain largely inconclusive, and its evolutionary significance continues to be debated. Curiously, although steady-state gbM levels are remarkably stable across mitotic and meiotic cell divisions, the methylation status of
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Chromatin dynamics and subnuclear gene positioning for transcriptional regulation Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-08-08 Takuya Sakamoto, Sachihiro Matsunaga
Plants have been found to exhibit diverse characteristics and functions of chromatin organization, showing both similarities and differences to animals. It is becoming clear how chromatin organization is linked to transcriptional regulation in response to environmental stresses. Regulation of specific chromatin positions in the nuclear space is important for transcription, and the mechanisms that enable
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Towards integrative plant pathology Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-08-04 Tatiana Ruiz-Bedoya, Kathryn J. McTavish, Tamar V. Av-Shalom, Darrell Desveaux, David S. Guttman
The field of plant pathology has revealed many of the mechanisms underlying the arms race, providing crucial knowledge and genetic resources for improving plant health. Although the host–microbe interaction seemingly favors rapidly evolving pathogens, it has also generated a vast evolutionary history of largely unexplored plant immunodiversity. We review studies that characterize the scope and distribution
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Epigenetic processes in plant stress priming: Open questions and new approaches Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-29 C. Jake Harris, Anna Amtmann, Jurriaan Ton
Priming reflects the capacity of plants to memorise environmental stress experience and improve their response to recurring stress. Epigenetic modifications in DNA and associated histone proteins may carry short-term and long-term memory in the same plant or mediate transgenerational effects, but the evidence is still largely circumstantial. New experimental tools now enable scientists to perform targeted
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Species-specific ‘specialized’ genomic region provides the new insights into the functional genomics characterizing metabolic polymorphisms in plants Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-28 Mutsumi Watanabe, Takayuki Tohge
Functional genomics approaches with comparative omics analyses of wild-accessions and cultivars/wild species, as well as comparative genomic analyses in plant species focusing on gene clusters, have successfully detected key metabolic polymorphisms in plant specialized metabolism. In recent decades, (i) intra-species specific metabolic polymorphisms, (ii) new functionalization of tandem duplicated
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How will I recognize you? Insights into endocytic cargo recognition in plants Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-29 Andreas De Meyer, Peter Grones, Daniel Van Damme
The plasma membrane (PM) houses a wide variety of proteins, facilitating interactions between the cell and its surroundings. Perception of external stimuli leads to selective internalization of membrane proteins via endocytosis. A multitude of endocytic signals affect protein internalization; however, their coordination and the exact mechanism of their recognition still remain elusive. In this review
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How transposable elements are recognized and epigenetically silenced in plants? Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-21 Beibei Liu, Meixia Zhao
Plant genomes are littered with transposable elements (TEs). Because TEs are potentially highly mutagenic, host organisms have evolved a set of defense mechanisms to recognize and epigenetically silence them. Although the maintenance of TE silencing is well studied, our understanding of the initiation of TE silencing is limited, but it clearly involves small RNAs and DNA methylation. Once TEs are silent
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Epigenetic control of transposons during plant reproduction: From meiosis to hybrid seeds Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-20
The regulation of transposable elements (TEs) requires overlapping epigenetic modifications that must be reinforced every cell division and generation. In plants, this is achieved by multiple pathways including small RNAs, DNA methylation, and repressive histone marks that act together to control TE expression and activity throughout the entire life cycle. However, transient TE activation is observed
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Transposable element evolution in plant genome ecosystems Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-15
The relationship of transposable elements (TEs) with their host genomes has usually been seen as an arms race between TEs and their host genomes. Consequently, TEs are supposed to amplify by bursts of transposition, when the TE escapes host surveillance, followed by long periods of TE quiescence and efficient host control. Recent data obtained from an increasing number of assembled plant genomes and
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HD-Zip IV transcription factors: Drivers of epidermal cell fate integrate metabolic signals Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-11
The leaf epidermis comprises the outermost layer of cells that protect plants against environmental stresses such as drought, ultraviolet radiation, and pathogen attack. Research over the past decades highlights the role of class IV homeodomain leucine-zipper (HD-Zip IV) transcription factors (TFs) in driving differentiation of various epidermal cell types, such as trichomes, guard cells, and pavement
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The genetic basis of epigenetic variation and its consequences for adaptation Curr. Opin. Plant Biol. (IF 9.5) Pub Date : 2023-07-12
Recent population genomic studies in plants have shed new light on natural epigenetic variation by identifying key genetic determinants, “trans modifiers,” that influence epigenetic states genome-wide and their interplay with environmental factors. Here, we review this progress by focusing on the epigenetic control of transposition and life-cycle transitions to highlight the ecological consequences