New Phytologist最新文献

筛选
英文 中文
Operationalizing soil persistence in soil and ecosystem ecology 在土壤和生态系统生态学中实施土壤持久性。
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-08-02 DOI: 10.1111/nph.71492
Matthias C. Rillig, Laurent Philippot, Johannes Lehmann
{"title":"Operationalizing soil persistence in soil and ecosystem ecology","authors":"Matthias C. Rillig,&nbsp;Laurent Philippot,&nbsp;Johannes Lehmann","doi":"10.1111/nph.71492","DOIUrl":"10.1111/nph.71492","url":null,"abstract":"<p>Trade-offs between soil persistence and the provision of certain soil services and activity/functions.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1372-1375"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.71492","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148664723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Poisonous plants weaken plant–microbe–fauna trait networks across temperature and precipitation gradients 有毒植物削弱了跨越温度和降水梯度的植物-微生物-动物群特征网络
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-09-15 DOI: 10.1111/nph.71564
Anning Zhang, Shuyan Chen, Rentao Liu, Miao Zhang, Lizhe An, Sa Xiao, Marcelo Sternberg, Josep Penuelas
{"title":"Poisonous plants weaken plant–microbe–fauna trait networks across temperature and precipitation gradients","authors":"Anning Zhang,&nbsp;Shuyan Chen,&nbsp;Rentao Liu,&nbsp;Miao Zhang,&nbsp;Lizhe An,&nbsp;Sa Xiao,&nbsp;Marcelo Sternberg,&nbsp;Josep Penuelas","doi":"10.1111/nph.71564","DOIUrl":"10.1111/nph.71564","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>Trait-based ecology provides a mechanistic framework for predicting how species and trophic interactions respond to environmental change, yet cross-trophic trait linkages remain poorly understood. We investigated how the expansion of poisonous plants reshapes functional traits of plants, soil microbes, and soil fauna along climatic gradients on the Qinghai–Tibet Plateau, and how these shifts affect multitrophic trait networks and ecosystem complexity.</li>\u0000 \u0000 \u0000 <li>To address this, we quantified 36 functional traits covering plants, bacteria, fungi, nematodes, and mites from 150 plots at 15 sites spanning a large climatic gradient.</li>\u0000 \u0000 \u0000 <li>We found that poisonous plants induced coordinated shifts in trait values toward an acquisitive strategy in plants (thinner and softer leaves) and microbes (faster C and N cycling), but toward a conservative strategy in soil fauna (larger body size). Temperature weakened the poisonous plant–induced shift of plant trait values toward acquisitive strategies, whereas precipitation amplified the poisonous plant–induced shift of soil fauna trait values toward conservative strategies. Network analyses revealed that poisonous plants diminished connectivity and complexity among plant–microbe–fauna trait modules.</li>\u0000 \u0000 \u0000 <li>By integrating trait-based and network approaches across plants, microbes, and soil fauna, our study provides the first empirical evidence that poisonous plants can generate cross-trophic trait mismatches and weaken the connectivity of plant–microbe–fauna trait networks across temperature and precipitation gradients. These findings advance trait-based ecology by showing how poisonous plants can reorganize above- and belowground functional relationships, with implications for understanding biodiversity change in alpine grasslands.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1445-1456"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148973283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 immune-related, TGA1 redox-switch: to be or not to be? 与免疫相关的 TGA1 氧化还原开关:是还是不是?
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2020-07-29 DOI: 10.1111/nph.16785
Yuan Li, Gary J. Loake
{"title":"The immune-related, TGA1 redox-switch: to be or not to be?","authors":"Yuan Li,&nbsp;Gary J. Loake","doi":"10.1111/nph.16785","DOIUrl":"10.1111/nph.16785","url":null,"abstract":"&lt;p&gt;In the context of cellular signalling, redox-switches embedded within target proteins enable pathogen-triggered ROI/RNI to regulate protein function, for example, by modulating enzyme activity, DNA/RNA binding, ion translocation, protein localization and especially pertinent here, protein–protein interactions (Spadaro &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2010&lt;/span&gt;; Chi &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2013&lt;/span&gt;). While this regulatory circuitry is currently rather under-appreciated within the plant–microbe field, the future manipulation of these redox-switches will provide unique opportunities to reconfigure plant immune responses.&lt;/p&gt;&lt;p&gt;The plant immune activator, salicylic acid (SA), which accumulates in response to attempted pathogen ingress, drives the expression of an extensive suite of immune-related genes (Durrant &amp; Dong, &lt;span&gt;2004&lt;/span&gt;). Key players in the induction of these SA-dependent genes are the transcriptional co-activator, NON-EXPRESSOR OF PR GENES (NPR1) (Fu &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2012&lt;/span&gt;; Ding &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2018&lt;/span&gt;) and the basic domain leucine zipper (bZip) transcription factors TGACG-BINDING FACTOR 1/4 (TGA1/TGA4) (Zhang &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2003&lt;/span&gt;), together with closely related paralogs of both of these molecular components. Nuclear localized NPR1 is thought to physically interact with TGA1/TGA4 to promote binding at cognate &lt;i&gt;cis&lt;/i&gt;-elements located within the promoters of target genes, in an SA-dependent fashion (Zhang &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;1999&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;Previous findings have suggested the presence of an intramolecular disulphide (S–S) bond between cysteines (Cys) 260 and Cys266 and Cys172 and Cys287 of TGA1 (Després &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2003&lt;/span&gt;; Lindermayr &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2010&lt;/span&gt;). SA has been proposed to induce reduction and associated breakage of these disulphide bonds, reconstituting thiol (–SH) formation at each relevant Cys residue (Fig. 1), enabling TGA1 to interact with NPR1. This embedded redox-switch therefore regulates the interaction of TGA1 with NPR1 and by extension the expression of SA-, NPR1-, and TGA1/4-dependent genes, presumably through modulating a change in the structural confirmation of TGA1. The existing evidence therefore placed a redox-switch at the heart of TGA1 function.&lt;/p&gt;&lt;p&gt;In contrast to previous reports, Budimir &lt;i&gt;et al&lt;/i&gt;. (&lt;span&gt;2020&lt;/span&gt;; doi: 10.1111/nph.16614), in an article published in &lt;i&gt;New Phytologist,&lt;/i&gt; now claim redox active Cys residues do not function in SA- or pathogen-induced expression of TGA1-regulated genes. To provide a platform to explore whether the redox-modulated, NPR1-dependent, DNA-binding activity of TGA1 influences the expression of SA-dependent target genes, Budimir &lt;i&gt;et al&lt;/i&gt;. first elegantly identified a suite of SA-induced TGA1/TGA4-dependent genes employing RNAseq-based approaches. This careful analysis identified that 193 out of 2090 SA-inducible genes required TGA1/TGA4 function for maximal expression post-exogenous SA appli","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1357-1359"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.16785","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38213952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Variety is the spice of life under stress: revealing the hidden heterogeneity of abiotic stress responses across cell types and developmental states 多样性是压力下生活的调味品:揭示非生物应激反应在细胞类型和发育状态中的隐藏异质性
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-08-18 DOI: 10.1111/nph.71526
Juan Murillo, Daniel Conde
{"title":"Variety is the spice of life under stress: revealing the hidden heterogeneity of abiotic stress responses across cell types and developmental states","authors":"Juan Murillo,&nbsp;Daniel Conde","doi":"10.1111/nph.71526","DOIUrl":"10.1111/nph.71526","url":null,"abstract":"&lt;p&gt;Drought and salinity share an osmotic component, whereas salinity also causes sodium-ion toxicity. Remarkably, these stressors do not affect all cell types equally, with each exhibiting distinct phenotypic and molecular responses. In this context, single-cell and single-nucleus RNA sequencing have recently provided the resolution needed to dissect stress responses. In an article published in this issue of &lt;i&gt;New Phytologist&lt;/i&gt;, Robertson &lt;i&gt;et al&lt;/i&gt;. (&lt;span&gt;2026&lt;/span&gt;; pp. 1376–1395) generated a single-nucleus atlas of developing rice leaves exposed to drought and salinity and showed that stress responses emerge from a complex interplay between cell identity, developmental stage, and stress severity. ‘Variety is the spice of life’ may be an old proverb, but deciphering stress responses across cell types and developmental stages may hold the key to the next-generation of crop engineering.&lt;/p&gt;&lt;p&gt;For decades, plant stress biology has largely relied on bulk analyses that average signals across heterogeneous cell populations. These approaches have been instrumental in identifying key signaling pathways, but they provide only a partial view of how environmental information is integrated with developmental programs. Robertson &lt;i&gt;et al&lt;/i&gt;. reveal that drought and saline stress responses are shaped by two interconnected layers of biological context: cell identity and developmental state. This work highlighted that cells sharing a common lineage can exhibit markedly different responses depending on their position along developmental trajectories, indicating that stress sensitivity is dynamically reconfigured during cell differentiation. Generally, this work indicates that mild drought and salinity stresses primarily perturbed differentiated tissues, whereas more severe stresses elicited the strongest transcriptional responses in meristematic cells. This is a particularly important contribution of this study, as it demonstrates that mild and moderate stressors did not simply elicit different magnitudes of the same response. On the contrary, increasing stress led to distinct changes in the transcriptome. A closer examination of the developmental trajectory of mesophyll differentiation revealed stressor-specific patterns of transcriptional perturbation. Drought primarily altered gene expression in cells undergoing differentiation, whereas salinity continued to perturb mature mesophyll cells later in development. These findings suggest that different stressors target distinct stages of the same developmental trajectory. Moreover, this study identified cell type-specific responses that enable plants to cope with osmotic stress (Fig. 1). Mild salinity induces regulatory changes that enhance light capture in large parenchyma and bundle sheath cells, suggesting a compensatory adjustment of photosynthetic function. By contrast, moderate salinity shifts the response toward ion management, promoting sodium compartmentalization in vascular fibers and bundle she","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1351-1353"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.71526","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148767562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New FLU mutant alleles point to new insights into singlet oxygen-mediated signal transduction 新的流感突变等位基因为单线态氧介导的信号转导提供了新的见解
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-08-11 DOI: 10.1111/nph.71499
Bernhard Grimm
{"title":"New FLU mutant alleles point to new insights into singlet oxygen-mediated signal transduction","authors":"Bernhard Grimm","doi":"10.1111/nph.71499","DOIUrl":"10.1111/nph.71499","url":null,"abstract":"&lt;p&gt;Over the course of evolution, angiosperms have developed distinct developmental programmes depending on whether they are exposed to light or grown in the dark (known as photomorphogenesis and scotomorphogenesis). Under the influence of light, cellular plastids evolved into the primary energy sources. The light-dependent processes in the plastids were optimised to the plant's morphology and anatomy for photosynthesis and the associated metabolic pathways. Chlorophyll synthesis, a branch of tetrapyrrole metabolism, also became a light-dependent process in angiosperms thanks to an enzyme that is active exclusively in the presence of light (Vedalankar &amp; Tripathy, &lt;span&gt;2019&lt;/span&gt;). The unusual light-dependent protochlorophyllide oxidoreductase (POR), which is only activated by light excitation of protochlorophyllide (Pchlide), the catalytic substrate – which thus also functions as a chromophore – differs structurally, catalytically and regulatorily from the light-independent POR found in the other photosynthetic organisms.&lt;/p&gt;&lt;p&gt;It was rather obvious to the scientists who first analysed plastid-localized photodynamic processes that the massive disruption caused by reactive oxygen species (ROS) would lead directly to massive membrane damage both inside and outside the chloroplasts, and to the immediate death of the cells and leaf necrotic phenotype. However, it became apparent that in the course of evolutionary adaptation to the negative consequences of light exposure, plants have learnt to defend themselves against the effects of photo-oxidative stress at an early stage, even in the presence of much more moderate accumulations of &lt;sup&gt;1&lt;/sup&gt;O&lt;sub&gt;2&lt;/sub&gt;, by triggering modified gene expression with regulatory molecular responses.&lt;/p&gt;&lt;p&gt;The identification of a tetrapyrrole, &lt;sup&gt;1&lt;/sup&gt;O&lt;sub&gt;2&lt;/sub&gt;-mediated signalling pathway between the plastids and the cell nucleus (retrograde signalling) was, in fact, aided by a fortunate coincidence during the work of Klaus Apel and his group after identification of the &lt;i&gt;Fluorescent in blue light&lt;/i&gt; (&lt;i&gt;flu&lt;/i&gt;) mutant 25 years ago. Using a forward-genetic approach, seedlings grown in the dark (etiolement) were identified in a collection of Arabidopsis ethyl methanesulfonate mutants; these seedlings exhibited high red fluorescence and subsequently died after exposure to light (Meskauskiene &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2001&lt;/span&gt;). The mutated &lt;i&gt;FLU&lt;/i&gt; gene, encoding a noncanonical tetratricopeptide repeat (TPR) protein, was identified as a negative regulator of Chl biosynthesis. This first posttranslational regulatory protein of Chl synthesis remained one of the important, if not the most important, regulators of the metabolic pathway.&lt;/p&gt;&lt;p&gt;Since FLU could not be detected immunologically by anti-FLU antibodies in the &lt;i&gt;flu&lt;/i&gt; mutant, the scientific community was led to believe that &lt;i&gt;flu&lt;/i&gt; was a knockout mutant. Klaus Apel and his research group primarily used the &lt;i&gt;flu&lt;/i&gt; mutant to further elucida","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1354-1356"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.71499","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insights into plant-part-specific N2O production in roots and shoots of chicory (Cichorium intybus) using stable isotope labelling 利用稳定同位素标记研究菊苣根和芽中植物部分特异性氮氧生成
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-09-15 DOI: 10.1111/nph.71565
Moritz Schroll, Maurice Maas, Steffen Greiner, Thomas Klintzsch, Frank Keppler
{"title":"Insights into plant-part-specific N2O production in roots and shoots of chicory (Cichorium intybus) using stable isotope labelling","authors":"Moritz Schroll,&nbsp;Maurice Maas,&nbsp;Steffen Greiner,&nbsp;Thomas Klintzsch,&nbsp;Frank Keppler","doi":"10.1111/nph.71565","DOIUrl":"10.1111/nph.71565","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1432-1444"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.71565","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148973285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nodulation does not alter root hydraulic conductance in pea 结瘤不改变豌豆根系的水力导度
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-09-01 DOI: 10.1111/nph.71528
Jiacan Sun, 孙嘉灿, Timothy J. Brodribb, Ibrahim Bourbia, Eloise Foo
{"title":"Nodulation does not alter root hydraulic conductance in pea","authors":"Jiacan Sun,&nbsp;孙嘉灿,&nbsp;Timothy J. Brodribb,&nbsp;Ibrahim Bourbia,&nbsp;Eloise Foo","doi":"10.1111/nph.71528","DOIUrl":"10.1111/nph.71528","url":null,"abstract":"<p>Root hydraulic conductance (<i>K</i><sub>r</sub>) normalised by root dry mass (including nodules) under hydrated and drought conditions in <i>Pisum sativum</i> wild-type (Frisson, Nod+), non-nodulator (sym19, Nod−), and supernodulator (Psrdn1, Nod++).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1360-1365"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.71528","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148861054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functional memory of drought affects leaf chemical defenses and microbial interactions in aspen 干旱功能记忆影响杨树叶片化学防御和微生物相互作用
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-09-13 DOI: 10.1111/nph.71561
Aubrey M. Hawks, Jaycie C. Fickle, Kelly L. Kerr, Dale L. Forrister, Allison M. Perkins, Efthymia Symeonidi, Madelyn Allen, Cannon Fehrenbach, Hsiao-Nung Chen, Richard L. Lindroth, William R. L. Anderegg, Talia L. Karasov
{"title":"Functional memory of drought affects leaf chemical defenses and microbial interactions in aspen","authors":"Aubrey M. Hawks,&nbsp;Jaycie C. Fickle,&nbsp;Kelly L. Kerr,&nbsp;Dale L. Forrister,&nbsp;Allison M. Perkins,&nbsp;Efthymia Symeonidi,&nbsp;Madelyn Allen,&nbsp;Cannon Fehrenbach,&nbsp;Hsiao-Nung Chen,&nbsp;Richard L. Lindroth,&nbsp;William R. L. Anderegg,&nbsp;Talia L. Karasov","doi":"10.1111/nph.71561","DOIUrl":"10.1111/nph.71561","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1413-1431"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.71561","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148946746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Linking genomic variation to floral trait adaptation across species boundaries 将基因组变异与跨物种的花性状适应联系起来
IF 8.7 1区 生物学
New Phytologist Pub Date : 2026-10-14 Epub Date: 2026-09-29 DOI: 10.1111/nph.71605
Samson Acoca-Pidolle, Carolyn A. Wessinger, Lena C. Hileman
{"title":"Linking genomic variation to floral trait adaptation across species boundaries","authors":"Samson Acoca-Pidolle,&nbsp;Carolyn A. Wessinger,&nbsp;Lena C. Hileman","doi":"10.1111/nph.71605","DOIUrl":"10.1111/nph.71605","url":null,"abstract":"<p>Flowers are highly diverse in shape, scent, and colour and may differ strikingly even among closely related species. Floral traits experience correlational selection favouring trait combinations that maximise plant reproduction, leading to outstanding questions on how floral trait divergence evolves in closely related species. In this review, we take a quantitative genetic perspective and ask whether and how the genetic architecture of floral trait divergence depends on adaptation to specific pollination systems and how it informs on the dynamics of the assembly of floral traits during divergence. After reviewing results from studies mapping divergent floral traits in closely related species, we emphasise the value of combining trait mapping approaches with approaches that identify genomic variation differentiating species boundaries. We show how the combination of these approaches has been successful in recent studies and how it could improve our understanding of floral diversification.</p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"252 4","pages":"1399-1412"},"PeriodicalIF":8.7,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.71605","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149077638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PnMYB4a , a R2R3 transcription factor, modulates coumarin biosynthesis during melanization in the culms of Phyllostachys nigra PnMYB4a是一种R2R3转录因子,在黑毛竹茎黑化过程中调节香豆素的生物合成
IF 9.4 1区 生物学
New Phytologist Pub Date : 2026-10-14 DOI: 10.1111/nph.71642
Dan Hou, Yadan Cao, Shawn D. Mansfield, Haojie Wang, Jiayang Bu, Qian Hua, Jingyue Hu, Xinchun Lin
{"title":"PnMYB4a , a R2R3 transcription factor, modulates coumarin biosynthesis during melanization in the culms of Phyllostachys nigra","authors":"Dan Hou, Yadan Cao, Shawn D. Mansfield, Haojie Wang, Jiayang Bu, Qian Hua, Jingyue Hu, Xinchun Lin","doi":"10.1111/nph.71642","DOIUrl":"https://doi.org/10.1111/nph.71642","url":null,"abstract":"Summary <jats:list list-type=\"bullet\"> <jats:list-item> Culm colour is one of the primary traits determining the ornamental value of bamboos. The black pigment shown to accumulate in <jats:italic>Phyllostachys nigra</jats:italic> was previously characterized as melanin, but the underlying regulatory mechanism for its deposition remains elusive. </jats:list-item> <jats:list-item> Herein, metabolomics data show that coumarins serve as precursor substrates for melanization in <jats:italic>P. nigra</jats:italic> , and RNA‐seq and weighted gene correlation network analysis (WGCNA) revealed that the transcription factor PnMYB4a is integral to coumarin biosynthesis. </jats:list-item> <jats:list-item> Overexpression of <jats:italic>PnMYB4a</jats:italic> promotes coumarin production in both <jats:italic>Oryza sativa</jats:italic> and <jats:italic>Arabidopsis thaliana</jats:italic> . <jats:italic>Pn4CL4‐2</jats:italic> , a biosynthetic gene involved in coumarin biosynthesis, was identified as a direct target gene of PnMYB4a. Additionally, PnWRKY8 and PnWRKY72‐2 were found to interact with PnMYB4a both <jats:italic>in vivo</jats:italic> and <jats:italic>in vitro</jats:italic> . Both PnWRKY8 and PnWRKY72‐2 positively promoted coumarin accumulation in transgenic rice, but they repressed the expression of <jats:italic>Pn4CL4‐2</jats:italic> by directly binding to W‐box elements within its promoter. Interestingly, PnMYB4a was found to alleviate the inhibitory effect on <jats:italic>Pn4CL4‐2</jats:italic> by forming complexes with both PnWRKY8 and PnWRKY72‐2. </jats:list-item> <jats:list-item> Collectively, these findings revealed a PnMYB4a‐PnWRKY8/PnWRKY72‐2 regulatory module involved in the coumarin biosynthetic pathway in <jats:italic>P. nigra</jats:italic> and provide new insights into the mechanisms of melanization and coloration in bamboo species. </jats:list-item> </jats:list>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"139 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书