Nature Plants最新文献_第3页

Guard cells on the adaxial and abaxial leaf surfaces use different compositions of potassium ion channels to drive light-induced stomatal opening 叶片正面和背面的保护细胞利用不同组成的钾离子通道来驱动光诱导的气孔打开

IF 18 1区生物学

Nature Plants Pub Date : 2025-07-09 DOI: 10.1038/s41477-025-02026-5

Jian Wei, Kunshen Hu, Menglong Liu, Yali Liu, Wang Tian, Yue Zhou, Liu-Min Fan, Yizhou Wang, Yin Wang

{"title":"Guard cells on the adaxial and abaxial leaf surfaces use different compositions of potassium ion channels to drive light-induced stomatal opening","authors":"Jian Wei, Kunshen Hu, Menglong Liu, Yali Liu, Wang Tian, Yue Zhou, Liu-Min Fan, Yizhou Wang, Yin Wang","doi":"10.1038/s41477-025-02026-5","DOIUrl":"https://doi.org/10.1038/s41477-025-02026-5","url":null,"abstract":"In the leaves of most herbaceous plants, stomata exist in both the adaxial (upper) and abaxial (lower) surfaces1,2. Many previous studies have reported that stomata on the abaxial surface are more responsive to light than those on the adaxial surface3,4,5,6,7,8,9. However, the underlying molecular mechanism is still unclear. Here, by examining the model plants Arabidopsis and tobacco, we confirmed that the distinct feature occurred at the guard cell level. Next, with both single-cell RNA sequencing and transcriptome sequencing, we compared gene expression patterns of adaxial and abaxial guard cells and highlighted the possibility of different utilization of potassium ion (K+) channels. Via in silico OnGuard simulation and genetic modifications, we found that adaxial and abaxial guard cells rely on different K+in channels, which control K+ influx for stomatal opening. The present study provides insights into understanding the distinct stomatal light response of different leaf surfaces.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"37 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144586948","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

Structural snapshots show the roles of TEF30 in repairing the broken photosystem II 结构快照显示TEF30在修复受损光系统II中的作用

IF 18 1区生物学

Nature Plants Pub Date : 2025-07-08 DOI: 10.1038/s41477-025-02062-1

引用次数: 0

When and where soil dryness matters to ecosystem photosynthesis 何时何地土壤干燥对生态系统光合作用有影响

IF 18 1区生物学

Nature Plants Pub Date : 2025-07-07 DOI: 10.1038/s41477-025-02024-7

Jiangong Liu, Qiren Wang, Weiwei Zhan, Xu Lian, Pierre Gentine

{"title":"When and where soil dryness matters to ecosystem photosynthesis","authors":"Jiangong Liu, Qiren Wang, Weiwei Zhan, Xu Lian, Pierre Gentine","doi":"10.1038/s41477-025-02024-7","DOIUrl":"https://doi.org/10.1038/s41477-025-02024-7","url":null,"abstract":"Projected increases in the intensity and frequency of droughts in the twenty-first century are expected to cause a substantial negative impact on terrestrial gross primary productivity (GPP). Yet, the relative role of soil water supply (indicated by soil moisture) and atmospheric water demand (indicated by vapour pressure deficit, VPD) on GPP remains debated, primarily due to their strong covariations, the presence of confounding factors and unresolved causal relationships among the interconnected hydrometeorological drivers of GPP. Here using a causality-guided explainable artificial intelligence framework, we show that soil moisture is the dominant regulator of water stress, surpassing the role of VPD, when and where soil water supply limits ecosystem functions. Temporally, we use in situ flux tower data to demonstrate that soil moisture dominates the GPP response during periods of insufficient soil water supply. Spatially, we assess the global spatial patterns of satellite sun-induced chlorophyll fluorescence (a proxy for GPP) in water-limited regions and demonstrate that they are mostly dominated by soil moisture. Conversely, VPD plays a greater role in controlling the temporal and spatial variations in GPP than soil moisture when and where soil water supply is not limited. The relative role of soil moisture and VPD is modulated by plant adaptation to long-term climatological aridity. Our findings advance the understanding of the impacts of soil and atmospheric dryness on ecosystem photosynthesis. They provide crucial insights into how terrestrial ecosystems respond to increasing aridity and more frequent droughts, particularly given the potential ecosystem shifts from energy to water limitation.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"72 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144568773","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

Global evidence for a positive relationship between tree species richness and ecosystem photosynthesis 树种丰富度与生态系统光合作用正相关的全球证据

IF 18 1区生物学

Nature Plants Pub Date : 2025-07-03 DOI: 10.1038/s41477-025-02046-1

Ruochen Cao, Yongguang Zhang, Marcos Fernández-Martínez, Zhaoying Zhang, Gengke Lai, Weimin Ju, Josep Peñuelas

{"title":"Global evidence for a positive relationship between tree species richness and ecosystem photosynthesis","authors":"Ruochen Cao, Yongguang Zhang, Marcos Fernández-Martínez, Zhaoying Zhang, Gengke Lai, Weimin Ju, Josep Peñuelas","doi":"10.1038/s41477-025-02046-1","DOIUrl":"https://doi.org/10.1038/s41477-025-02046-1","url":null,"abstract":"Forest biodiversity plays a critical role in sustaining ecosystem functioning and buffering the effects of increased extreme weather events on forests. A global assessment of the relationship between biodiversity and photosynthesis in natural forest ecosystems, however, remains elusive. We used a large dataset of the richness of tree species from a large number of globally distributed forest plots combined with satellite retrievals of sun-induced chlorophyll fluorescence, a novel proxy for photosynthesis, to evaluate the relationship between forest biodiversity and photosynthesis and its biological mechanisms at the global scale. We found that species richness and photosynthesis were often positively correlated at the global scale, with stronger relationships in tropical forests but weaker associations in high-latitude regions. This positive relationship was mainly driven by a larger role of species richness in increasing maximal photosynthesis than in prolonging the growing season. We also found that higher light capture by increasing the complexity of community structure was the basis of this increase in forest photosynthesis. Forests with high species richness also showed higher foliar nitrogen concentrations and the maximum rate of ribulose 1,5-bisphosphate carboxylase/oxygenase carboxylation, which are two crucial traits determining photosynthetic capacity. Our observation-based findings of ecosystem carbon uptake responses to changes in biodiversity suggest that the loss of biodiversity may jeopardize ecosystem carbon uptake and the terrestrial carbon sink, and will provide important constraints to Earth-system models.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"69 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547550","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

Poltergeist-Like 2 (PLL2)-dependent activation of herbivore defence distinguishes systemin from other immune signalling pathways. poltergeist -样2 （PLL2）依赖的草食动物防御激活将systemin与其他免疫信号通路区分开来。

IF 15.8 1区生物学

Nature Plants Pub Date : 2025-07-01 Epub Date: 2025-07-04 DOI: 10.1038/s41477-025-02040-7

Rong Li, Xu Wang, Fatima Haj Ahmad, Anja Thoe Fuglsang, Anke Steppuhn, Annick Stintzi, Andreas Schaller

{"title":"Poltergeist-Like 2 (PLL2)-dependent activation of herbivore defence distinguishes systemin from other immune signalling pathways.","authors":"Rong Li, Xu Wang, Fatima Haj Ahmad, Anja Thoe Fuglsang, Anke Steppuhn, Annick Stintzi, Andreas Schaller","doi":"10.1038/s41477-025-02040-7","DOIUrl":"10.1038/s41477-025-02040-7","url":null,"abstract":"Systemin, the first signalling peptide identified in plants, mediates induced resistance against insect herbivores and necrotrophic pathogens in tomato1-3. Initially, systemin was conceived as a hormone-like, long-distance messenger that triggers systemic defence responses far from the site of insect attack. It was later found to rather act as a phytocytokine, amplifying the local wound response for the production of downstream signals that activate defence gene expression in distant tissues4. Systemin perception and signalling rely on the systemin receptor SYR15. However, the specifics of SYR1-dependent signalling and how systemin signalling differs from other immune signalling pathways remain largely unknown. Here we report that systemin activates the poltergeist-like phosphatase PLL2 in a SYR1-dependent manner. PLL2, in turn, regulates early systemin responses at the plasma membrane, including the rapid inhibition of proton pumps through dephosphorylation of their regulatory C-termini. PLL2 was found to be essential for downstream defence gene induction, ultimately contributing to insect resistance.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":" ","pages":"1270-1281"},"PeriodicalIF":15.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12283378/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564973","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

Water availability positions auxin response maxima to determine plant regeneration fates. 水分有效性使生长素反应最大化，从而决定植物的再生命运。

IF 15.8 1区生物学

Nature Plants Pub Date : 2025-07-01 Epub Date: 2025-07-04 DOI: 10.1038/s41477-025-02029-2

Abdul Kareem, Anna K van Wüllen, Ai Zhang, Gabriel Walckiers, Ellen Fasth, Charles W Melnyk

{"title":"Water availability positions auxin response maxima to determine plant regeneration fates.","authors":"Abdul Kareem, Anna K van Wüllen, Ai Zhang, Gabriel Walckiers, Ellen Fasth, Charles W Melnyk","doi":"10.1038/s41477-025-02029-2","DOIUrl":"10.1038/s41477-025-02029-2","url":null,"abstract":"Wounding and hormones serve as diverse triggers for regeneration in animals and plants. Despite important advances in understanding various types of regeneration, the mechanism by which plants determine regeneration outcomes remains largely unknown. Here we demonstrate in Arabidopsis that a trade-off between two regeneration fates, wound-induced callus and root regeneration, was driven by distinct molecular pathways related to cambium and root development, respectively. We discovered that local water availability near the wound site determined the early stages of regeneration fates in Arabidopsis and tomato, with high water triggering root fate and low water initiating callus fate. Distinct spatial distributions of auxin response maxima around the wound, shaped by water availability, were critical for determining root or callus fates. We found that, by perturbing auxin response or auxin transport dynamics, we could change regeneration outcomes. Moreover, high water availability enhanced ethylene and jasmonic acid responses, whereas treatments with these hormones could modify auxin transport dynamics or the location of auxin response maxima, thus influencing regeneration fates. We propose that, through stress hormones, water availability modifies the auxin response distribution to control regeneration outcomes, thus allowing environmental control of regeneration and providing a means to improve in vitro regeneration by changing the water potential.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":" ","pages":"1367-1379"},"PeriodicalIF":15.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12283381/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564974","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

A conserved Phytophthora apoplastic trypsin-like serine protease targets the receptor-like kinase BAK1 to dampen plant immunity 一个保守的疫霉胞外胰蛋白酶样丝氨酸蛋白酶靶向受体样激酶BAK1来抑制植物免疫

IF 18 1区生物学

Nature Plants Pub Date : 2025-07-01 DOI: 10.1038/s41477-025-02039-0

Sicong Zhang, Liyuan Wang, Haibin Jiang, Guangzheng Sun, Yeqiang Xia, Jinbin Wu, Xue Chen, Lei Wang, Tengfei Liu, Haibing Ouyang, Xi Chen, Yuanchao Wang, Yan Wang

{"title":"A conserved Phytophthora apoplastic trypsin-like serine protease targets the receptor-like kinase BAK1 to dampen plant immunity","authors":"Sicong Zhang, Liyuan Wang, Haibin Jiang, Guangzheng Sun, Yeqiang Xia, Jinbin Wu, Xue Chen, Lei Wang, Tengfei Liu, Haibing Ouyang, Xi Chen, Yuanchao Wang, Yan Wang","doi":"10.1038/s41477-025-02039-0","DOIUrl":"https://doi.org/10.1038/s41477-025-02039-0","url":null,"abstract":"Perception of microbial pathogens by plant cell-surface pattern recognition receptors (PRRs) activates pattern-triggered immunity (PTI) in plants. The receptor-like kinase BAK1 functions as co-receptor of many PRRs and is a central immune regulator in PTI signal transduction. However, the molecular mechanism by which microbial pathogens manipulate BAK1 in the apoplast to overcome this layer of immunity remains largely unknown. In this study, we performed a large-scale screening of Phytophthora apoplastic effectors suppressing cell death triggered by Phytophthora elicitin INF1 and identified an apoplastic trypsin-like serine protease PsTry1. PsTry1 associates with BAK1 in soybean and N. benthamiana, and widely suppresses immune response triggered by different MAMPs. Further study revealed that PsTry1 cleaves the extracellular domain of soybean GmBAK1 and the ability of PsTry1 to suppress plant immunity depends on its proteolysis activity. An extensive Ala substitution mutagenesis screen revealed that Leu163 of GmBAK1 is a key residue essential for PsTry1 cleavage. Furthermore, PsTry1 is highly conserved among Phytophthora pathogens and multiple homologues are capable of suppressing PTI through cleavage of BAK1. Collectively, this study reveals a novel strategy exploited by phytopathogens to suppress plant apoplastic immunity.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"214 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520786","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

High-temperature-induced FKF1 accumulation promotes flowering through the dispersion of GI and degradation of SVP. 高温诱导的FKF1积累通过GI的分散和SVP的降解促进开花。

IF 15.8 1区生物学

Nature Plants Pub Date : 2025-07-01 Epub Date: 2025-07-04 DOI: 10.1038/s41477-025-02019-4

Hong Gil Lee, Jinkwang Kim, Kyung-Ho Park, Hongwoo Lee, Sol-Bi Kim, Ji-Yul Jung, Eunha Gwak, Ji Hoon Ahn, Jae-Hoon Jung, Jong-Chan Lee, Pil Joon Seo

{"title":"High-temperature-induced FKF1 accumulation promotes flowering through the dispersion of GI and degradation of SVP.","authors":"Hong Gil Lee, Jinkwang Kim, Kyung-Ho Park, Hongwoo Lee, Sol-Bi Kim, Ji-Yul Jung, Eunha Gwak, Ji Hoon Ahn, Jae-Hoon Jung, Jong-Chan Lee, Pil Joon Seo","doi":"10.1038/s41477-025-02019-4","DOIUrl":"10.1038/s41477-025-02019-4","url":null,"abstract":"Floral transition is influenced by photoperiod and ambient temperature, which are integrated to modulate development via a molecular mechanism that remains to be elucidated. Here we demonstrate that the F-box protein FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 (FKF1) and its interacting partner GIGANTEA (GI), central regulators of photoperiodic flowering, target SHORT VEGETATIVE PHASE (SVP) for 26S-proteasome-dependent degradation to regulate the temperature-responsive developmental transition to flowering. At low temperatures, GI is sequestered in liquid-like nuclear condensates. By contrast, FKF1 accumulates at high temperatures and releases GI from condensates to form a nuclear-dispersed FKF1-GI complex, leading to SVP degradation under short-day conditions. Temperature sensitivity is significantly reduced in fkf1-t, gi-2 and fkf1-2 gi-2 mutants. We propose that the FKF1-GI complex mediates the proteolysis of a floral repressor via reversible liquid-liquid phase separation to accelerate floral transition at high temperatures.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":" ","pages":"1282-1297"},"PeriodicalIF":15.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564972","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

Mechanism of RNA primer removal in plastid DNA replication 质体DNA复制中RNA引物去除的机制

IF 18 1区生物学

Nature Plants Pub Date : 2025-06-30 DOI: 10.1038/s41477-025-02038-1

引用次数: 0

The synaptonemal complex central element SCEP3 interlinks synapsis initiation and crossover formation in Arabidopsis thaliana 拟南芥突触复合体中心元件SCEP3连接突触起始和交叉形成

IF 18 1区生物学

Nature Plants Pub Date : 2025-06-27 DOI: 10.1038/s41477-025-02030-9

Chao Feng, Jana Lorenz, Steven Dreissig, Veit Schubert, Baicui Wang, Franziska Hartmann, Maria Cuacos, Nadia Fernández-Jiménez, Ziliang Zhao, Christian Eggeling, Amanda Souza Câmara, Axel Himmelbach, Stefan Heckmann

{"title":"The synaptonemal complex central element SCEP3 interlinks synapsis initiation and crossover formation in Arabidopsis thaliana","authors":"Chao Feng, Jana Lorenz, Steven Dreissig, Veit Schubert, Baicui Wang, Franziska Hartmann, Maria Cuacos, Nadia Fernández-Jiménez, Ziliang Zhao, Christian Eggeling, Amanda Souza Câmara, Axel Himmelbach, Stefan Heckmann","doi":"10.1038/s41477-025-02030-9","DOIUrl":"https://doi.org/10.1038/s41477-025-02030-9","url":null,"abstract":"The synaptonemal complex (SC) forms between homologous chromosomes during meiosis. In Arabidopsis thaliana, its central region (CR) is composed of the transverse filament protein ZYP1 and the central element proteins SCEP1 and SCEP2. Here we identify SCEP3 as a CR protein that is evolutionarily conserved across plant species. SCEP3 spatiotemporally overlaps with other CR proteins and localizes to the SC CR. The loss of SCEP3 prevents SC assembly, abolishes crossover (CO) assurance and interference, and eliminates sex-specific differences in CO rates (heterochiasmy) through increased CO in females. SCEP3 is required for a subset of COs in SC-deficient mutants, such as zyp1. Although SCEP3 physically interacts with ZYP1, it loads independently of other CR proteins. We propose that SCEP3 may associate with certain recombination intermediates, stabilizing them and/or recruiting additional factors, such as ZYP1, to a subset of these intermediates, thereby promoting and interlinking SC assembly and CO formation.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":"26 1","pages":""},"PeriodicalIF":18.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144500544","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