Plant, Cell & Environment最新文献

{"title":"The Nuclear Effector MiISE23 From Meloidogyne incognita Targets JAZ Proteins and Suppresses Jasmonate Signalling, Increasing Host Susceptibility","authors":"Qianqian Shi,&nbsp;Rui Liu,&nbsp;Lijun Jiang,&nbsp;Shasha Gao,&nbsp;Juan Ma,&nbsp;Xiaoxuan Tian,&nbsp;Chunyu Jiang,&nbsp;Chen Liang,&nbsp;Honghai Zhao,&nbsp;Wenwen Song,&nbsp;Bingyan Xie","doi":"10.1111/pce.15461","DOIUrl":"10.1111/pce.15461","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Meloidogyne incognita</i> is an economically important plant-parasitic nematode that can infect thousands of different plant species. During its interaction with host plants, <i>M. incognita</i> synthesises numerous effectors in oesophageal glands, which are then secreted into plant tissues. Here, we characterised the effector MiISE23 and found that it could suppress plant immune responses. In situ hybridisation showed that <i>MiISE23</i> was expressed in the subventral glands. Transgenic <i>Arabidopsis</i> plants expressing <i>MiISE23</i> were more susceptible to <i>M. incognita</i>, whereas host-derived RNAi of <i>MiISE23</i> was found to decrease <i>M. incognita</i> infection in <i>Arabidopsis</i>. In vitro and in vivo experiments showed that MiISE23 repressed jasmonate (JA) signalling by directly interacting with and suppressing jasmonoyl-isoleucine (JA-Ile)-induced degradation of jasmonate ZIM-domain proteins by COI1. The expression of MiISE23 in <i>Arabidopsis</i> repressed the expression of JA-responsive genes and reduced the levels of endogenous JA-Ile. <i>AtJAZ6</i> transgenic lines of <i>Arabidopsis</i> showed increased susceptibility to <i>M. incognita</i> infection. Collectively, our results show that MiISE23 stabilises JAZ proteins and interferes with JA signalling, revealing a novel mechanism utilised by root-knot nematodes to hijack phytohormone signalling and promote parasitism.</p></div>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 6","pages":"4611-4624"},"PeriodicalIF":6.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565729","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}

{"title":"Viruses Facilitate Energy Acquisition Potential by Their Bacterial Hosts in Rhizosphere of Grafted Plants","authors":"He Zhang,&nbsp;Yang Ruan,&nbsp;Yakov Kuzyakov,&nbsp;Hong Sun,&nbsp;Qiwei Huang,&nbsp;Shiwei Guo,&nbsp;Qirong Shen,&nbsp;Ning Ling","doi":"10.1111/pce.15458","DOIUrl":"10.1111/pce.15458","url":null,"abstract":"<div>\u0000 \u0000 <p>Viruses alter the ecological and evolutionary trajectories of bacterial host communities. Plant grafting is a technique that integrates two species or varietiies and have consequences on the rhizosphere functioning. The grafting effects on the taxonomic and functional assembly of viruses and their bacterial host in the plant rhizosphere remain largely elusive. Using shotgun metagenome sequencing, we recover a total of 1441 viral operational taxonomic units from the rhizosphere of grafted and ungrafted plants after 8-year continuous monoculture. In the grafted and ungrafted rhizosphere, the <i>Myoviridae</i>, <i>Zobellviridae</i> and <i>Kyanoviridae</i> emerged as the predominant viral families, collectively representing around 40% of the viral community in each respective environment. Grafting enriched the members in viral family <i>Kyanoviridae</i>, <i>Tectiviridae</i>, <i>Peduoviridae</i> and <i>Suoliviridae</i>, and auxiliary metabolic genes related to pyruvate metabolism and energy acquisition (e.g., <i>gloB</i>, <i>DNMT1</i> and <i>dcyD</i>). The virus–bacterial interactions increased the rapid growth potential of bacteria, which explains the strong increase in abundance of specific bacterial hosts (i.e., Chitinophagaceae, Cyclobacteriaceae and Spirosomaceae) in the grafted-plant rhizosphere. Overall, these results deepen our understanding of microbial community assembly and ecological services from the perspective of virus–host interactions.</p></div>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 6","pages":"4599-4610"},"PeriodicalIF":6.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555495","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}

{"title":"Transcriptomic and Metabolomic Evidence Reveal the Vital Role of Lactose in the Acquisition of Rapid Desiccation Tolerance in Boea hygrometrica","authors":"Run-Ze Sun,&nbsp;Yuan-Yuan Wang,&nbsp;Xiu-Xiu Chen,&nbsp;Xin Deng","doi":"10.1111/pce.15454","DOIUrl":"10.1111/pce.15454","url":null,"abstract":"<div>\u0000 \u0000 <p>Prior exposure of plants to a triggering factor can enhance their tolerance to more severe stressful events. Transcriptome reprogramming of metabolism and hormonal modulation processes in the resurrection plant <i>Boea hygrometrica</i> was observed during drought acclimation. However, the metabolic dynamics and underlying regulatory networks that modulate drought acclimation-induced rapid desiccation tolerance (RDT) remain unexplored. Here, we performed an integrated transcriptome and metabolome analysis to investigate the phytohormone profiles and metabolic landscapes of <i>B</i>. <i>hygrometrica</i> during drought acclimation and dehydration stress. We identified a set of RDT acquisition-associated biomarkers, including <i>trans</i>-zeatin and some disaccharides (lactose, trehalose, sucrose, and isomaltulose). Exogenous application of lactose effectively enhanced the RDT of <i>B</i>. <i>hygrometrica</i> seedlings and improved drought tolerance in <i>Arabidopsis</i>, tobacco, maize, and wheat. In addition, transient overexpression of lactose-associated transcription factors MYB330 and APETALA2 in <i>B</i>. <i>hygrometrica</i> can promote the RDT and transcription of drought acclimation-inducible genes involved in calcium and ABA signalling and autophagy. In summary, our findings demonstrate that drought acclimation-induced lactose accumulation facilitates the establishment of an “acclimated state”, leading to transcriptome reprogramming in response to rapid desiccation. These results will also pave the way for using RDT biomarkers to improve crop drought tolerance in an environmentally sustainable manner.</p></div>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 6","pages":"4564-4584"},"PeriodicalIF":6.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539608","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}

{"title":"Spatial Variation and Adaptive Responses of Tall-Type Field Peas (Pisum sativum L.) Across Indian Subcontinent.","authors":"Ashok Kumar Parihar, Kali Krishna Hazra, Amrit Lamichaney, Debjyoti Sen Gupta, Jitendra Kumar, Anil Kumar Singh, Raj Kumar Mishra, Sankar Prasad Das, Parvez Ahmad Sofi, Ajaz Ahmad Lone, Geeta Rai, Hironya Kumar Borah, Chandra Shekhar Mahto, Khajan Singh, Smita Tiwari, Ashok Kumar Saxena, Sunil Kumar Nair, Mangala Parikh, Vijay Sharma, Sudhakar Prasad Mishra, Rajesh Kumar Yadav, Deepak Singh, Sanjeev Gupta, Shailesh Tripathi, Girish Prasad Dixit","doi":"10.1111/pce.15450","DOIUrl":"https://doi.org/10.1111/pce.15450","url":null,"abstract":"<p><p>Understanding crop performance across diverse agro-ecologies is crucial for developing region-specific breeding strategies. This multi-location study examined the impact of diverse environments on crop eco-phenology and genotype-by-environment interactions (GEI) of tall-type field pea breeding lines. Empirical methods were employed to identify strategic locations that support higher yields and unique genotypic traits. The results revealed significant variations across locations, with coefficients of variation for key traits as follows: days to flowering (31%), days to maturity (20%), reproductive period (19%), yield (35%), and seed weight (31%). Environmental component accounted for the largest yield variation (78%), followed by GEI (13%). Correlation analysis indicated a significant influence of both temperature extremes, particularly maximum temperature during flowering, on crop yields. Higher minimum temperatures during flowering and reproductive period were associated with reduced yields, while extended crop duration in cooler regions also negatively impacted yields. A significant quadratic relationship between seed weight and yield underscored the importance of seed weight as a yield-stabilising trait. GGE-biplot analysis identified four mega-environments, and designated Faizabad, Pantnagar, Varanasi, and Kota as ideal testing sites for selecting genotypes with broader adaptability. These findings provide valuable insights for redesigning field pea breeding programmes at the national level.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555494","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}

{"title":"Developmental Mechanisms of Fruit Diversification in Angiosperms and the Evolutionary Implications","authors":"Jeonghwan Ahn,&nbsp;Feng Gao,&nbsp;Yang Dong","doi":"10.1111/pce.15453","DOIUrl":"10.1111/pce.15453","url":null,"abstract":"<div>\u0000 \u0000 <p>The evolutionary origin of fruits played a pivotal role in promoting the dominance of angiosperms on the Earth as the fruits protect and nourish seeds and facilitate their dispersal through diverse mechanisms. Understanding the molecular networks underlying fruit development is a prerequisite for elucidating evolutionary mechanisms shaping fruit diversification, and particularly improving crop yield and quality of fruit in response to the rapid climate change in modern agricultural systems. In this article, we offer a comprehensive analysis of fruit classification, emphasising the intrinsic characteristics and their adaptive dispersal strategies in specific environments. Based on the studies in the model systems such as <i>Arabidopsis thaliana</i> and <i>Solanum lycopersicum</i>, we highlight recent advances in identifying novel components of the molecular networks involved in fruit development. We further discuss the evolutionary mechanisms that contribute to fruit diversification in the context of well-established phylogenetic frameworks, with examples from the Brassicaceae and Solanaceae families. A comparison between Brassicaceae and Solanaceae indicates the key module of fruit development is largely conserved in evolution. We propose the future research that integrates multidisciplinary evidence could help to better understand the mechanisms of fruit development and diversification, which ultimately contribute to improving crop yield and quality in practice.</p></div>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 6","pages":"4585-4598"},"PeriodicalIF":6.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555493","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}

{"title":"Leaf Nutrient Resorption of Vascular Epiphytes Is Regulated by Stoichiometry and Nutrient Limitation Control Strategies","authors":"Yan Liu,&nbsp;Wei Sun,&nbsp;Tao Jia,&nbsp;Tian-Hao Su,&nbsp;Shan-Shan Wu,&nbsp;Chun-Yan Zhou,&nbsp;Yu-Xuan Mo,&nbsp;Jin-Hua Qi,&nbsp;Zhi-Yun Lu,&nbsp;Su Li","doi":"10.1111/pce.15455","DOIUrl":"10.1111/pce.15455","url":null,"abstract":"<div>\u0000 \u0000 <p>Nitrogen (N) and phosphorus (P) resorption are assumed to be crucial for epiphyte growth in nutrient-poor canopies, yet remain poorly understood due to unique habitats and limited access. We examined the N, P and ¹⁵N natural abundance in mature and senesced leaves of 10 vascular epiphyte species in southwest subtropical China, integrating data from a previous study in tropical lowland forest. We found that subtropical epiphytes experienced N-limitation, likely because of the high P availability, making N relatively scarce. The mean N and P resorption efficiencies per leaf unit were 63.1% and 67.7%, with 14.7% and 12% higher than those on leaf mass, and 3.9% and 3.8% higher than those on leaf area. The combination of strategy analysis, generalized linear models and variance decomposition revealed that the N and P resorption in tropical epiphytes were combinedly regulated by stoichiometry and nutrient limitation control strategies, while subtropical epiphytes employed either the combined strategies or stoichiometry strategy alone. Notably, functional group type strongly influenced N resorption. Leaf δ¹⁵N reflected nutrient resorption with species-specific variation, driven by functional traits. Epiphytes and terrestrial plants exhibit similar nutrient resorption patterns, which help alleviate the N and P deficiencies and support high biodiversity in forest canopies.</p></div>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 6","pages":"4550-4563"},"PeriodicalIF":6.0,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539553","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}

{"title":"Can We Secure Food and Nutrition Through Crop Innovation?","authors":"Ashwani Pareek,&nbsp;Kapuganti Jagadis Gupta,&nbsp;Sneh L. Singla-Pareek,&nbsp;Christine H. Foyer","doi":"10.1111/pce.15451","DOIUrl":"10.1111/pce.15451","url":null,"abstract":"&lt;p&gt;Several studies in this issue focus on climate adaptation strategies. Verma et al. (&lt;span&gt;2024&lt;/span&gt;) provide a comprehensive review of the challenges posed by climate change to agricultural sustainability, outlining key adaptation measures necessary for ensuring food security. Similarly, Lohani et al. (&lt;span&gt;2024&lt;/span&gt;) discuss the impact of heat stress on pollen development and its implications for crop yields, emphasizing genetic and molecular strategies to enhance heat tolerance. Furthermore, Manna et al. (&lt;span&gt;2024&lt;/span&gt;) explore how nutrient and water availability influence rice physiology, root architecture, and ionomic balance through auxin signalling.&lt;/p&gt;&lt;p&gt;The rewilding of cultivated crops is increasingly being recognized as a viable approach for enhancing stress tolerance and productivity. The review by Bhupenchandra et al. (&lt;span&gt;2024&lt;/span&gt;) investigates the potential of weedy rice as a valuable genetic resource for improving cultivated rice, highlighting its genetic constitution, nutritional value, and resilience mechanisms. This approach underscores the significance of genetic diversity in breeding programs aimed at improving stress tolerance, nutritional quality, and adaptability in cultivated rice.&lt;/p&gt;&lt;p&gt;Beyond genetic rewilding, microbial communities are emerging as key players in agricultural resilience. Srivastava et al. (&lt;span&gt;2024&lt;/span&gt;) review the molecular interactions between beneficial microbes and plants, emphasizing their roles in plant health, nutrient uptake, and ecosystem sustainability. This review highlights the importance of the regulated production, perception and processing of reactive oxygen species (ROS) in the communication network that operates between plants and microbes. Harnessing plant-microbe symbioses presents a promising avenue for enhancing crop survival and fitness under extreme environmental conditions.&lt;/p&gt;&lt;p&gt;Agronomic interventions such as early sowing (ES) have shown significant potential in improving crop yields. Leconte et al. (&lt;span&gt;2024&lt;/span&gt;) demonstrate that ES enhances sunflower seed and oil yield by 80% compared to normal sowing, primarily by extending the vegetative phase, allowing greater accumulation and remobilization of photo-assimilates into seeds. Similarly, Zeng et al. (&lt;span&gt;2025&lt;/span&gt;) explore phenotypic plasticity in &lt;i&gt;Brassica napus&lt;/i&gt; as a strategy for enhancing seed oil content under climate change. Their study, based on multi-environment trials over 4 years, integrates climate records and genomic data to develop predictive models for seed oil content estimation, identifying optimal haplotypes for sustainable production.&lt;/p&gt;&lt;p&gt;Recent advances in genomics have facilitated the identification of key genes governing stress tolerance, yield potential, and nutrient use efficiency (NUE). Jain et al. (&lt;span&gt;2024&lt;/span&gt;) analyze temporal gene expression profiles in sorghum from pollination to seed maturity, identifying candidate genes for engineering grain development an","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 4","pages":"2495-2497"},"PeriodicalIF":6.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/pce.15451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539549","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}

{"title":"Comparative Metabolomics Analysis of Seed Composition Accumulation in Soybean (Glycine max L.) Differing in Protein and Oil Content.","authors":"Yifan Cui, Zhiyang Wang, Mingyang Li, Xin Li, Sihui Wang, Chunyan Liu, Dawei Xin, Zhaoming Qi, Qingshan Chen, Mingliang Yang, Ying Zhao","doi":"10.1111/pce.15448","DOIUrl":"https://doi.org/10.1111/pce.15448","url":null,"abstract":"<p><p>Efforts to enhance protein and oil contents in soybean seeds are significant; however, a negative correlation usually exists between protein and oil levels. This observation emphasizes the need to understand the spatiotemporal dynamics and interactions in protein and oil accumulation during soybean seed development. The current study used LC-MS/MS methodology to conduct high-throughput metabolomic analyses, aiming to understand metabolite compositions and spatial distributions in soybean varieties with extreme protein and oil content phenotypes including HPHO, HPLO, LPHO and LPLO lines. Comparative investigations revealed distinct variances in the metabolic characteristics of these four lines. Key metabolites associated with oil and protein synthesis were screened out using these data and included glucose, citric acid, α-ketoglutaric acid, glycerate 3-phosphate, glyceraldehyde 3-phosphate, succinic acid, cis-aconitic acid. Pathway analyses of differentially abundant metabolites indicated significant increases in the activity of the Calvin cycle, TCA cycle, glycolysis, and shikimic acid pathways. Simultaneously, reductions were observed in pathways related to the conversion of glucose into pentose, ascorbate and aldarate. This modification supports incorporating carbon sources into amino and fatty acid synthesis pathways in protein- and oil-rich soybean seeds. These results provide a basis for future initiatives to develop soybean cultivars with enhanced protein and oil yields.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":" ","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536171","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}

{"title":"Viewing Stomata in Action: Autonomous in Planta Imaging of Individual Stomatal Movement","authors":"Tomas E. van den Berg,&nbsp;Remco G. P. Sanders,&nbsp;Elias Kaiser,&nbsp;Jurriaan Schmitz","doi":"10.1111/pce.15436","DOIUrl":"10.1111/pce.15436","url":null,"abstract":"<p>Stomata regulate plant gas exchange under changing environments, but observations of single stomata dynamics in planta are sparse. We developed a compact microscope system that can measure the kinetics of tens of stomata in planta simultaneously, with sub-minute time resolution. Darkfield imaging with green light was used to create 3D stacks from which 2D surface projections were constructed to resolve stomatal apertures. Stomatal dynamics of <i>Chrysanthemum morifolium</i> (Chrysanthemum) and <i>Zea mays</i> (Maize) under changing light intensity were categorized, and a kinetic model was fitted to the data for quantitative comparison. Maize stomata transitioned frequently between open and closed states under constant growth light and these ‘opening and closing’ stomata, when closed, responded faster to a change to saturating light than steady-state closed stomata under the constant growth light. The faster opening response benefits CO₂ uptake under saturating light. The slow closure of Chrysanthemum stomata reduced water use efficiency (WUE). Over 50% showed delayed or partial closure, leading to unnecessarily large apertures after reduced light. Stomata with larger apertures had more lag and similar closure speeds compared to those with smaller apertures and lag, further reducing WUE. In contrast, maize stomata with larger apertures closed faster, with no lag.</p>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 6","pages":"4533-4549"},"PeriodicalIF":6.0,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/pce.15436","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536182","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}

{"title":"Seasonal Shifts in Tree Water Use and Non-Structural Carbohydrate Storage in a Tropical Dry Forest","authors":"Maria Medeiros,&nbsp;André Luiz Alves de Lima,&nbsp;José Raliuson Inácio Silva,&nbsp;Angela Lucena Nascimento de Jesus,&nbsp;Cynthia L. Wright,&nbsp;Eduardo Soares de Souza,&nbsp;Mauro Guida Santos","doi":"10.1111/pce.15449","DOIUrl":"10.1111/pce.15449","url":null,"abstract":"<div>\u0000 \u0000 <p>Predictions of increased drought frequency and intensity have the potential to threaten to forest globally. The key to trees response to drought is an understanding of tree water use and carbohydrate storage. Our objective was to evaluate sap velocity and dynamics of non-structural carbohydrates (NSC) in native trees of a dry tropical forest, during rainy and drought periods. We evaluated six key species of the Caatinga: three deciduous species with low wood density (WD), two deciduous species with high WD and one evergreen species during the rainy and dry periods. We measured sap velocity, xylem water potential, stomatal conductance, phenology and NSC. We found that the evergreen specie had higher sap velocity and frequent NSC production. While the low deciduous WD species showed low sap velocity, store water and NSC mainly in the stem and roots, and have leaf sprouting and flowering at the end of the dry period. The deciduous high WD also showed low sap velocity, however, with low stored NSC. These results suggest that under longer dry seasons and an irregular rainy seasons, species with low WD that use part of the stored NSC to resprout still during dry season may be the most affected.</p></div>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 6","pages":"4518-4532"},"PeriodicalIF":6.0,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536173","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}