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Corrigendum to 'Off-target drift of the herbicide dicamba disrupts plant-pollinator interactions via novel pathways'. “除草剂麦草畏的脱靶漂移通过新途径破坏植物与传粉者的相互作用”的勘误。
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-14 DOI: 10.1111/nph.70906
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引用次数: 0
Parallel evolution of plant alkaloid biosynthesis from bacterial‐like decarboxylases 细菌类脱羧酶合成植物生物碱的平行进化
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-14 DOI: 10.1111/nph.70884
Catharine X. Wood, Zhouqian Jiang, Inesh Amarnath, Lachlan J. N. Waddell, Uma Sophia Batey, Oriana Serna Daza, Katherine Newling, Sally James, Gideon Grogan, William P. Unsworth, Benjamin R. Lichman
Summary The basic amino acids lysine and ornithine are precursors to bioactive alkaloids including nicotine, hyoscyamine, and securinine. The amino acids can be incorporated into alkaloids in a symmetric or nonsymmetric manner. Here, we report the discovery of enzymes responsible for the nonsymmetric pathway. We used transcriptomics and enzyme characterisation, including mutagenesis and isotope labelling, to identify the enzyme catalysing the nonsymmetric lysine incorporation step of securinine biosynthesis in Flueggea suffruticosa . We then used phylogenetics to expand the investigation across plants and identified orthologs from Nicotiana tabacum and Artemisia annua . We report the ornithine/lysine/arginine decarboxy‐oxidases (OLADOs), pyridoxal phosphate (PLP)‐dependent enzymes responsible for the nonsymmetric pathway, catalysing the single‐step decarboxylative oxidative deamination of lysine, ornithine, or arginine. These enzymes are part of the group III ornithine/lysine/arginine decarboxylase‐like family (OLADLs), previously associated with prokaryotes. We show that OLADLs are widespread in plants and that OLADOs have repeatedly emerged from OLADLs through parallel evolution. This investigation introduces a new class of eukaryotic decarboxylases and describes enzymes involved in multiple alkaloid biosynthesis pathways. It furthermore demonstrates how the principle of parallel evolution at a genomic and enzymatic level can be leveraged for gene discovery across multiple lineages.
碱性氨基酸赖氨酸和鸟氨酸是生物活性生物碱的前体,包括尼古丁、山莨菪碱和securinine。氨基酸可以对称或非对称方式并入生物碱中。在这里,我们报告了负责非对称途径的酶的发现。我们利用转录组学和酶特性,包括诱变和同位素标记,鉴定了催化氟草碱生物合成非对称赖氨酸结合步骤的酶。然后,我们利用系统发育学扩展了跨植物的研究,并从烟草和黄花蒿中鉴定了直系同源物。我们报道了鸟氨酸/赖氨酸/精氨酸脱羧氧化酶(OLADOs),磷酸吡哆醛(PLP)依赖性酶负责非对称途径,催化赖氨酸,鸟氨酸或精氨酸的单步脱羧氧化脱胺。这些酶是III类鸟氨酸/赖氨酸/精氨酸脱羧酶家族(OLADLs)的一部分,以前与原核生物有关。我们发现oladl在植物中广泛存在,oladl通过平行进化反复从oladl中出现。本研究介绍了一类新的真核生物脱羧酶,并描述了参与多种生物碱生物合成途径的酶。它进一步证明了如何在基因组和酶水平上平行进化的原则可以用于跨多个谱系的基因发现。
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引用次数: 0
ZmMPK5-mediated ZmOCL1 phosphorylation positively regulates drought tolerance by promoting the induction of ZmDHN2 in maize. zmmpk5介导的ZmOCL1磷酸化通过促进ZmDHN2的诱导而正向调节玉米的抗旱性。
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-12 DOI: 10.1111/nph.70898
Xinxin Yang,Jinkui Cheng,Feier Wang,Aifang Ma,Yu Wang,Zhizhong Gong
Transcription factors (TFs) play a critical role in regulating the expression of drought-responsive genes. Elucidating how TFs are modulated by stress signals will contribute to deciphering the impacts of drought on transcriptional regulation. We discovered that the mutation of an HD-Zip IV TF ZmOCL1 (OUTER CELL LAYER1) enhances susceptibility to water deficit. Transcriptome analysis and biochemical evidence demonstrated that a dehydrin gene ZmDHN2 is one of the direct target genes of ZmOCL1. Overexpression of ZmDHN2 in maize confers drought resistance by regulating stomatal closure, elevating peroxidase activity, and reducing hydrogen peroxide accumulation. Screening for an upstream kinase of ZmOCL1 identified a mitogen-activated protein kinase (MAPK) ZmMPK5, which is activated by dehydration. ZmMPK5 phosphorylates ZmOCL1 at the Ser283 residue and increases its binding affinity to the ZmDHN2 promoter, leading to full induction of ZmDHN2. Overexpression of ZmMPK5 improves drought tolerance and raises the transcription of ZmDHN2 compared to wild-type maize, while knockout of ZmMPK5 results in sensitivity to drought and a decrease in ZmDHN2 transcription. Our work reveals a transcriptional regulatory module in which ZmOCL1 promotes the expression of ZmDHN2 after being phosphorylated by ZmMPK5 in response to drought stress, finally resulting in better adaptation to water scarcity.
转录因子在调控干旱响应基因表达中起着至关重要的作用。阐明tf是如何被胁迫信号调节的,将有助于破译干旱对转录调控的影响。我们发现HD-Zip IV TF ZmOCL1 (OUTER CELL LAYER1)的突变增强了对水分亏缺的敏感性。转录组分析和生化证据表明脱氢基因ZmDHN2是ZmOCL1的直接靶基因之一。ZmDHN2在玉米中的过表达通过调节气孔关闭、提高过氧化物酶活性和减少过氧化氢积累来获得抗旱性。筛选ZmOCL1的上游激酶,鉴定出丝裂原活化蛋白激酶(MAPK) ZmMPK5,该激酶可通过脱水激活。ZmMPK5磷酸化ZmOCL1的Ser283残基,并增加其与ZmDHN2启动子的结合亲和力,导致ZmDHN2的完全诱导。与野生型玉米相比,过表达ZmMPK5提高了玉米的耐旱性,ZmDHN2的转录水平提高,而敲除ZmMPK5导致玉米对干旱敏感,ZmDHN2的转录水平降低。我们的研究揭示了一个转录调控模块,其中ZmOCL1在被ZmMPK5磷酸化后促进ZmDHN2的表达,以应对干旱胁迫,最终导致更好的适应缺水。
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引用次数: 0
Fungal ecology in the age of 'omics. 组学时代的真菌生态学。
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-11 DOI: 10.1111/nph.70900
Brontë R Shelton,Joana Larrere,Diego Yusta Belsham,Marina Omacini,Andrés Argüelles-Moyao,Erika Buscardo,Danielle Karla Alves da Silva,Xiaoyan Zhao,Naoto Nakamura,Rodolfo Ángeles-Argáiz,Claudia Paz,Noemí Matías-Ferrer,Miranda Mistaya Hart
The advancement of technology in recent decades has given us an unprecedented ability to observe the natural world. With modern sequencing and bioinformatics technologies, we can obtain more information about the microscopic world, and its interactions with the macroscopic world, than ever before. However, fungal studies that use meta'omic technologies have been sparse compared with bacterial and plant-focused studies. In this review, we highlight the ways that meta'omics can help to address pressing questions in belowground plant-fungal ecology, show consistencies that are emerging - and discrepancies that still exist - among analysis pipelines, and advocate for reporting standards that will allow meta'omic research to more fully benefit fungal ecology.
近几十年来科技的进步使我们有了前所未有的观察自然世界的能力。随着现代测序和生物信息学技术的发展,我们可以获得比以往更多的关于微观世界及其与宏观世界相互作用的信息。然而,与以细菌和植物为中心的研究相比,使用元组学技术的真菌研究很少。在这篇综述中,我们强调了元组学可以帮助解决地下植物-真菌生态学中的紧迫问题的方式,展示了分析管道之间正在出现的一致性-以及仍然存在的差异,并倡导报告标准,使元组学研究更充分地受益于真菌生态学。
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引用次数: 0
Stems and leaves of angiosperms follow a convex trade-off to optimise hydraulic safety and efficiency. 被子植物的茎和叶遵循一个凸权衡,以优化水力安全和效率。
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-11 DOI: 10.1111/nph.70895
Swetlana Kreinert,Luciano Pereira,Lucian Kaack,Marcela T Miranda,Rafael V Ribeiro,Steven Jansen
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引用次数: 0
Asymmetry in leaf phosphorus concentration of woody plants and its divergent drivers in the Northern and Southern Hemispheres. 南北半球木本植物叶片磷浓度的不对称性及其不同驱动因素。
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-11 DOI: 10.1111/nph.70911
Qingquan Meng,Jia Wang,Zhijuan Shi,Hans Lambers,Jiashu Chen,Jingyun Fang,Wenxuan Han
Leaf phosphorus (P) concentration has traditionally been assumed to increase from the equator to the poles. However, whether there exists a uniform or symmetrical latitudinal pattern across both hemispheres has never been examined due to variation in the geological histories, land-sea distribution, and climate of the hemispheres. We analyzed global latitudinal trends in woody plant leaf P concentrations across hemispheres to evaluate four hypotheses underlying these patterns. We show that leaf P concentration was significantly higher in the Northern Hemisphere than in the Southern Hemisphere, increasing with latitude in the former but decreasing in the latter. Key drivers of leaf P concentration differed between hemispheres: temperature dominated Northern Hemisphere variations, supporting the Temperature-Plant Physiology Hypothesis, while soil available P (indicative of substrate age) primarily influenced Southern Hemisphere trends, supporting the Soil Substrate Age Hypothesis. Temperature and precipitation play opposite roles in forming the leaf P latitudinal patterns in the two hemispheres. Our findings challenge the notion of a traditional latitudinal P gradient and emphasize incorporating hemisphere-specific climatic and edaphic drivers into forest productivity and global P-cycling models. Resolving these asymmetries will improve predictions of vegetation responses to environmental change and enhance Earth system model accuracy.
传统上认为,叶磷浓度从赤道到两极呈增加趋势。然而,由于两个半球的地质历史、陆海分布和气候的变化,是否存在均匀或对称的纬度分布模式从未得到检验。我们分析了木本植物叶片磷浓度在全球南北半球的纬度变化趋势,以评估这些模式背后的四种假设。结果表明,叶片磷浓度在北半球显著高于南半球,且北半球随纬度增加而增加,南半球随纬度降低。叶片磷浓度的主要驱动因素在半球之间存在差异:温度主导北半球的变化,支持温度-植物生理假说,而土壤有效磷(指示基质年龄)主要影响南半球的趋势,支持土壤基质年龄假说。温度和降水对两个半球叶片P纬向格局的形成起相反的作用。我们的研究结果挑战了传统的纬度P梯度的概念,并强调将半球特定的气候和土壤驱动因素纳入森林生产力和全球P循环模型。解决这些不对称性将改善植被对环境变化响应的预测,并提高地球系统模型的准确性。
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引用次数: 0
Canalized to heat, plastic to cold: adaptive coordination of leaf and seed strategies in populations spanning an elevational gradient. 对热的适应,对冷的可塑性:跨越海拔梯度的种群中叶片和种子策略的适应性协调。
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-11 DOI: 10.1111/nph.70912
Cleber J N Chaves,Danilo U Tavares,Isabella V Lemos-Silva,João P S P Bento,Henrique Vilela-Bianchini,Paulo Aecyo,Tami C Cacossi,Marília M Tavares,Gabriel P Sabino,Vitor de A Kamimura,Wagner L Dos Santos,Lucas N Gonçalves,Karina T Silva,Juliana L S Mayer,Rafael V Ribeiro,Diego Escobar-Escobar,Kenneth J Feeley,Clarisse Palma-Silva
In tropical mountains, surviving temperature extremes demands finely tuned strategies. We investigated how populations of the bromeliad Pitcairnia flammea across a 2200 m elevational gradient balance genetic canalization and plasticity, and whether thermal strategies are coordinated between seeds and leaves. Seven populations (n ≥ 20 per site) were studied in the field and in a > 2-yr common-garden experiment. Leaf traits (mass per area, area, succulence, stomatal, and trichome densities) and thermal tolerance (T50 for heat and cold) were measured, and germination assays (10-35°C) quantified seed thermal performances. Multivariate analyses linked leaf and seed traits to elevation and local thermal conditions. Heat tolerance and leaf traits were maintained in the common garden, indicating strong canalization, whereas cold tolerance was highly plastic, decreasing by up to 17.9°C. Seeds from high elevations germinated faster, with higher cardinal temperatures and c. 230 fewer growing degree days than lowland seeds. Thermal niche differentiation in P. flammea arises from canalized heat resistance and plastic cold responses, coordinated across leaves and seeds. Considering thermal traits across life stages improves predictions of population resilience under climate warming.
在热带山区,要在极端温度下生存需要精心调整的策略。研究了海拔2200 m的山梨科植物Pitcairnia flammea种群如何平衡遗传渠道化和可塑性,以及种子和叶片之间的热策略是否协调。在野外和2年的普通花园试验中研究了7个种群(n≥20个/点)。测定了叶片性状(单位面积质量、面积、多肉质、气孔和毛状体密度)和耐热性(冷热T50),萌发试验(10-35°C)量化了种子的热性能。多变量分析将叶片和种子性状与海拔和当地热条件联系起来。普通园林的耐热性和叶片性状基本保持不变,表现出较强的渠化,而耐寒性则表现出较强的可塑性,最高可降低17.9°C。高海拔地区的种子萌发速度更快,基本温度更高,生长日数比低海拔地区的种子少。红杨热生态位分化源于叶片和种子间协调的耐热性和塑性冷响应。考虑整个生命阶段的热特性可以改善气候变暖下人口恢复力的预测。
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引用次数: 0
Parallel evolution in the biosynthesis of a juvenile hormone compound reveals metabolic convergence in plants and insects. 一种幼年激素化合物的生物合成的平行进化揭示了植物和昆虫的代谢趋同。
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-11 DOI: 10.1111/nph.70896
Weijiao Wang 王威姣,Chi Zhang,Xinlu Chen,Minta Chaiprasongsuk,Pradeep Paudel,Aijun Zhang,Feng Chen
Plants have evolved diverse defenses against herbivores, and some species produce juvenile hormone III (JH III) that disrupts insect growth and reproduction. While the insect JH III biosynthetic pathway is well-established, its occurrence and basis in plants remain unresolved. We investigated the molecular and biochemical basis of JH III biosynthesis in the model sedge Cyperus iria. Comparative genomics, expression profiling, metabolic analyses, and in vitro enzyme assays were combined with transient pathway reconstruction in Nicotiana benthamiana. Cyperus iria harbors members of the same enzyme families of four insect JH III pathway enzymes but lacks a canonical farnesoic acid methyltransferase (FAMT). A pair of SABATH methyltransferases was identified as functional FAMTs (CiFAMT) in C. iria. Functional validation in N. benthamiana transient assay demonstrated that CiFAMT can replace the insect farnesoic acid methyltransferase within an otherwise insect-based pathway, confirming its role in methyl farnesoate biosynthesis. Our results demonstrate that plants and insects have independently evolved the capacity to biosynthesize structurally identical JH III through recruitment of non-homologous enzymes. This provides compelling evidence for structural convergent evolution of a specialized metabolite with ecological implications for plant-insect interactions.
植物已经进化出多种防御食草动物的能力,一些物种产生幼体激素III (JH III),破坏昆虫的生长和繁殖。虽然昆虫的jhiii生物合成途径已经确定,但其在植物中的发生和基础仍未确定。研究了模型莎草中jhiii生物合成的分子生化基础。比较基因组学、表达谱分析、代谢分析和体外酶分析与瞬时途径重建相结合。鸢尾草含有四种昆虫jhiii途径酶的相同酶家族成员,但缺乏典型的法脂酸甲基转移酶(FAMT)。一对SABATH甲基转移酶被鉴定为C. iria的功能性famt (CiFAMT)。在N. benthamiana的瞬时实验中功能验证表明,CiFAMT可以在昆虫为基础的途径中取代昆虫法尼索酸甲基转移酶,证实其在法尼索酸甲酯生物合成中的作用。我们的研究结果表明,植物和昆虫通过招募非同源酶独立地进化出了生物合成结构相同的JH III的能力。这为植物与昆虫相互作用的特殊代谢物的结构趋同进化提供了令人信服的证据。
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引用次数: 0
Sheng Luan 盛的菜肴
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-10 DOI: 10.1111/nph.70878
{"title":"Sheng Luan","authors":"","doi":"10.1111/nph.70878","DOIUrl":"https://doi.org/10.1111/nph.70878","url":null,"abstract":"","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"4 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145937989","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
CRK2 modulates flowering in Arabidopsis together with GLYCINE‐RICH RNA ‐ BINDING PROTEIN 7 CRK2与富含甘氨酸的RNA结合蛋白7一起调节拟南芥的开花
IF 9.4 1区 生物学 Q1 PLANT SCIENCES Pub Date : 2026-01-10 DOI: 10.1111/nph.70901
Francisco J. Colina, Julia Krasensky‐Wrzaczek, Alegría Pérez‐Guillén, Michael Wrzaczek
{"title":"CRK2 modulates flowering in Arabidopsis together with GLYCINE‐RICH RNA ‐ BINDING PROTEIN 7","authors":"Francisco J. Colina, Julia Krasensky‐Wrzaczek, Alegría Pérez‐Guillén, Michael Wrzaczek","doi":"10.1111/nph.70901","DOIUrl":"https://doi.org/10.1111/nph.70901","url":null,"abstract":"","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"48 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145937990","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
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New Phytologist
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