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Integrative approaches to enhance reproductive resilience of crops for climate-proof agriculture
IF 6.8
Plant Stress Pub Date : 2025-03-01 DOI: 10.1016/j.stress.2024.100704
RECROP COST
{"title":"Integrative approaches to enhance reproductive resilience of crops for climate-proof agriculture","authors":"RECROP COST","doi":"10.1016/j.stress.2024.100704","DOIUrl":"10.1016/j.stress.2024.100704","url":null,"abstract":"<div><div>Worldwide agricultural systems are threatened by rising temperatures, extreme weather events, and shifting climate zones. Climate change-driven failure in sexual reproduction is a major cause for yield reduction in horticultural and grain crops. Consequently, understanding how climate change affects reproductive processes in crops is crucial for global food security and prosperity. The development of climate-proof crops, including maize, wheat, barley, rice, and tomato, requires new genetic material and novel management practices to ensure high productivity under less favorable conditions. Safeguarding successful plant reproduction is challenging due to the complex nature of this biological process, and therefore, a multifaceted approach is the key to success. In this review, we provide an overview of the processes underlying plant reproduction and how they are affected by different abiotic stresses related to climate change. We discuss how genetics, advanced breeding technologies, biotechnological innovations, and sustainable agronomic practices can collectively contribute to the development of resilient crop varieties. We also highlight the potential of artificial intelligence (AI) in optimizing breeding strategies, predicting climate impacts, and improving crop management practices to enhance reproductive resilience and ensure food security. Lastly, we discuss the vision of a new era in agriculture where diverse actors and stakeholders cooperate to create climate-proof crops.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100704"},"PeriodicalIF":6.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rhizobacteria mitigate salinity stress in maize by modulating photosynthesis, antioxidant defense, and rhizosphere microbial diversity
IF 6.8
Plant Stress Pub Date : 2025-03-01 DOI: 10.1016/j.stress.2025.100781
Letian Xu , Caiyun Xin , Fasih Ullah Haider , Hui Li , Shuxin Li , Hua Zhang , Peng Zhang , Xiangnan Li
{"title":"Rhizobacteria mitigate salinity stress in maize by modulating photosynthesis, antioxidant defense, and rhizosphere microbial diversity","authors":"Letian Xu ,&nbsp;Caiyun Xin ,&nbsp;Fasih Ullah Haider ,&nbsp;Hui Li ,&nbsp;Shuxin Li ,&nbsp;Hua Zhang ,&nbsp;Peng Zhang ,&nbsp;Xiangnan Li","doi":"10.1016/j.stress.2025.100781","DOIUrl":"10.1016/j.stress.2025.100781","url":null,"abstract":"<div><div>Soil salinization poses challenges to agricultural growth; nonetheless, plant growth-promoting rhizobacteria (PGPR) can enhance the potential of plants to withstand salt stress. However, further investigation is needed to understand the specific mechanisms through which PGPR influence rhizosphere microbial diversity and root exudates in improving maize (<em>Zea mays</em>) salt tolerance under field conditions. This study utilized four treatments under field conditions: normal soil (NN), normal soil with PGPR (NP), salt-stressed soil (SN), and salt-stressed soil with PGPR (SP) to explore the influence of PGPR on maize rhizosphere microbial diversity and root exudates. The results showed that salt stress reduced maize's net photosynthetic rate (<em>Pn</em>), leaf area index (LAI), leaf K<sup>+</sup> concentration, and yield while increasing Na<sup>+</sup> concentration and Na<sup>+</sup>/K<sup>+</sup> ratio. PGPR alleviated these effects, improving <em>Pn</em>, K<sup>+</sup> levels, and yield while reducing Na<sup>+</sup> and Na<sup>+</sup>/K<sup>+</sup> ratios. Under salinity, <em>Pn</em>, stomatal conductance, transpiration rate, LAI, and chlorophyll content dropped by 52.71 %, 37.14 %, 29.53 %, 14.66 %, and 60.20 %, respectively, but PGPR increased them by 60.75 %, 37.14 %, 69.60 %, 13.20 %, and 27.17 %. Salt stress disrupted carbohydrate metabolism and antioxidant enzyme activities, reducing sucrose synthase and ADP-glucose pyrophosphorylase activities. PGPR restored these and boosted antioxidant defenses. PGPR minimized Na+ uptake, improved ion balance, and mitigated yield losses, achieving a maximum yield of 21,852.43 kg ha<sup>-1</sup> (NP treatment) versus 15,859.95 kg ha<sup>-1</sup> under SN. Additionally, SN decreased bacterial Shannon and Chao1 indices, whereas PGPR resulted in higher indices than SN. The SN treatment enriched salt-tolerant and pathogenic microorganisms (e.g., <em>Rhodanobacter, Alternaria, Tausonia</em>), while PGPR-enriched beneficial microorganisms that mitigate salt stress effects (e.g., <em>Streptomyces, Sphingomonas, MND1</em>). Additionally, root exudates from PGPR were enriched with metabolites classified as benzenoids, which positively correlated with <em>Streptomyces</em> and <em>Sphingomonas</em>. The study shows that adding PGPR reduces Na<sup>+</sup> absorption in maize roots, lowers leaf Na<sup>+</sup>/K<sup>+</sup> ratios, and mitigates yield loss under salt stress. Further research is needed to apply these findings in agriculture and evaluate their long-term impacts on soil quality and crop yields.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100781"},"PeriodicalIF":6.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exogenous EBR enhanced heat tolerance in mini Chinese cabbage by regulating ABA accumulation
IF 6.8
Plant Stress Pub Date : 2025-03-01 DOI: 10.1016/j.stress.2025.100784
Jiaojiao Yang , Guangzheng Wang , Yongmei He , Wenxu Chen , Xuehua Wang , Jizhong Ma , Xueqing Gao , Jihua Yu , Linli Hu
{"title":"Exogenous EBR enhanced heat tolerance in mini Chinese cabbage by regulating ABA accumulation","authors":"Jiaojiao Yang ,&nbsp;Guangzheng Wang ,&nbsp;Yongmei He ,&nbsp;Wenxu Chen ,&nbsp;Xuehua Wang ,&nbsp;Jizhong Ma ,&nbsp;Xueqing Gao ,&nbsp;Jihua Yu ,&nbsp;Linli Hu","doi":"10.1016/j.stress.2025.100784","DOIUrl":"10.1016/j.stress.2025.100784","url":null,"abstract":"<div><div>It is unclear whether 24-epibrassinolide (EBR) can improve the heat resistance of mini Chinese cabbage (<em>Brassica pekinensis</em>). Whether abscisic acid (ABA) can be involved in EBR to improve the heat tolerance of mini Chinese cabbage is not clear. Therefore, in this study, mini Chinese cabbage was used as experimental material, and the effects of EBR/ABA and its synthetic inhibitors were studied by applying pharmacological methods to explore the effects of EBR and ABA on improving the heat resistance of mini Chinese cabbage. Our experimental results revealed that EBR pretreatment can reduce reactive oxygen species (ROS) under heat stress, protect the photosynthetic system, and maintain stomatal function, improving the heat resistance of mini Chinese cabbage. It is noteworthy that the application of fluriddone (FDT) or brassinazole (Brz) to EBR or ABA treated mini Chinese cabbage significantly reduced the stability of the membrane system and photosynthetic system. Based on these observations, we speculated that EBR and ABA may have a synergistic effect to jointly promote the heat resistance of mini Chinese cabbage. Transcriptome result showed that EBR pretreatment significantly increased the relative expression levels of <em>BrNCED3</em> and <em>BrPYL</em> genes, and decreased the relative expression levels of <em>BrCYP707A1</em> genes. These results suggested that EBR activates downstream signaling pathways by promoting ABA accumulation under heat stress. In conclusion, exogenous EBR can improve the heat resistance of mini Chinese cabbage by regulating ABA accumulation. This study provides new insights into the potential mechanism of EBR alleviating heat stress in mini Chinese cabbage.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100784"},"PeriodicalIF":6.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overexpression of MRE11 from the moss Physcomitrium patens enhances resistance to genotoxic DNA strand breaks by stimulating homologous recombination
IF 6.8
Plant Stress Pub Date : 2025-03-01 DOI: 10.1016/j.stress.2025.100786
Arup Das, Sudipta Ray
{"title":"Overexpression of MRE11 from the moss Physcomitrium patens enhances resistance to genotoxic DNA strand breaks by stimulating homologous recombination","authors":"Arup Das,&nbsp;Sudipta Ray","doi":"10.1016/j.stress.2025.100786","DOIUrl":"10.1016/j.stress.2025.100786","url":null,"abstract":"<div><div>Homology-directed repair (HDR) plays a crucial role in maintaining genetic integrity by facilitating error-free repair of DNA double-strand breaks (DSBs). The meiotic recombination 11 (MRE11) nuclease, the structural center of the MRE11-RAD50-NBS1 (MRN) complex, critically senses DSBs and initiates DNA end resection to commence the HDR process. Here, we report the functional role of MRE11 from the moss <em>Physcomitrium patens</em> (PpMRE11) in enhancing DNA damage tolerance. Our results demonstrate that the overexpression of PpMRE11 confers resistance to genotoxic DSBs in both bacterial and plant systems. Quantitative real-time analysis of the <em>PpMRE11</em> transcript revealed elevated expression in response to diverse stress stimuli. Furthermore, the increased survival in response to genotoxic stress facilitated by PpMRE11 overexpression is directly linked to the higher homologous recombination (HR) frequency - a correlation not observed in bacterial mutant lines lacking HR capability. Moreover, ectopic expression of PpMRE11 in transgenic rice plants improved resistance to genotoxic stress, as evidenced by reduced accumulation of DNA lesions and decreased cellular damage. These findings provide compelling evidence that the overexpression of PpMRE11 promotes HDR and enhances DNA damage tolerance, highlighting its potential as a target for genetic engineering strategies aimed at improving stress resistance in crops.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100786"},"PeriodicalIF":6.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143527260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chloroplast positioning affects Hexokinase 1-mediated plant immunity under combined low temperature and high light
IF 6.8
Plant Stress Pub Date : 2025-03-01 DOI: 10.1016/j.stress.2025.100791
Sophia Bianca Bagshaw , Anastasia Kitashova , Beyza Özmen , Chun Kwan Yip , Bianca Emily Süling , Laura Schröder , Tatjana Kleine , Thomas Nägele
{"title":"Chloroplast positioning affects Hexokinase 1-mediated plant immunity under combined low temperature and high light","authors":"Sophia Bianca Bagshaw ,&nbsp;Anastasia Kitashova ,&nbsp;Beyza Özmen ,&nbsp;Chun Kwan Yip ,&nbsp;Bianca Emily Süling ,&nbsp;Laura Schröder ,&nbsp;Tatjana Kleine ,&nbsp;Thomas Nägele","doi":"10.1016/j.stress.2025.100791","DOIUrl":"10.1016/j.stress.2025.100791","url":null,"abstract":"<div><div>Molecular networks involved in the responses of plants towards environmental changes are multifaceted and affect diverse metabolic and signalling pathways. Under challenging environmental conditions, such as low temperatures and high light intensities, plants need to immediately adjust their metabolism to prevent irreversible tissue damage. Regulation of photosynthesis and carbohydrate metabolism plays a crucial role in this stress response. Here, we analysed mutants of <em>Arabidopsis thaliana</em>, which were affected in either central enzymatic activities of carbohydrate metabolism, in chloroplast positioning or in a combination of both. Plants were exposed to a treatment of combined cold and elevated light. While mutants with deficiencies in sucrose or starch metabolism showed affected metabolic pathway regulation under abiotic stress, Hexokinase 1 mutants (<em>hxk1</em>) showed a severe growth phenotype with lesions and pale areas on leaf tissue. In a double mutant, combining deficiencies in Chloroplast Unusual Positioning 1 (CHUP1)-mediated chloroplast positioning and HXK1 (<em>hxk1 x chup1</em>), this growth phenotype vanished resulting in wild type-like plants. Transcriptome analysis revealed a significantly affected immune response of <em>hxk1</em> plants, which was suppressed in the double mutants. Our results support previous findings which suggested that HXK1 acts as a positive regulator of the plant immune response. Finally, we suggest that, due to its potential role as a negative regulator of plant immunity, CHUP1 deficiency counteracted the reduced immunity of <em>hxk1</em> in the double mutant which rescued the plants. Future studies might now reveal whether deficiencies in CHUP1 function and/or transcription represent a conserved strategy to increase plant immunity under abiotic stress.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100791"},"PeriodicalIF":6.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancing saline-alkali tolerance in cucumber seedlings: The role of exogenous melatonin in redox homeostasis and stomatal function
IF 6.8
Plant Stress Pub Date : 2025-03-01 DOI: 10.1016/j.stress.2025.100789
Shuchao Huang , Peng Wu , Xiting Yang , Wei Li , Wenhao Zhou , Yandong Xie , Xin Meng , Zhaozhuang Li , Zhiqi Xu , Ning Jin , Li Jin , Shuya Wang , Jian Lyu , Jihua Yu
{"title":"Enhancing saline-alkali tolerance in cucumber seedlings: The role of exogenous melatonin in redox homeostasis and stomatal function","authors":"Shuchao Huang ,&nbsp;Peng Wu ,&nbsp;Xiting Yang ,&nbsp;Wei Li ,&nbsp;Wenhao Zhou ,&nbsp;Yandong Xie ,&nbsp;Xin Meng ,&nbsp;Zhaozhuang Li ,&nbsp;Zhiqi Xu ,&nbsp;Ning Jin ,&nbsp;Li Jin ,&nbsp;Shuya Wang ,&nbsp;Jian Lyu ,&nbsp;Jihua Yu","doi":"10.1016/j.stress.2025.100789","DOIUrl":"10.1016/j.stress.2025.100789","url":null,"abstract":"<div><div>Cucumbers, cultivated globally on 3.7 million hectares, face yield losses due to salinity, highlighting the need for effective mitigation strategies for degraded soils. Melatonin (MT) has gained significant interest for its ability to relieve plant stress. To explore the regulatory role of exogenous MT in maintaining redox homeostasis in cucumber seedlings under saline-alkali stress (SA), this study employed the cucumber cultivar 'Xinchun No. 4′. Simulated saline-alkali conditions were applied, and the effects of exogenous MT on seedling growth, reactive oxygen species (ROS) production, the ascorbate-glutathione (AsA-GSH) cycle, and changes in leaf anatomy were systematically assessed. The findings reveal that exposure to 40 mmol·L<sup>-1</sup> saline-alkali stress significantly impaired cucumber seedling growth, reduced biomass, and led to excessive accumulation of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) and superoxide anions (O<sub>2</sub>·⁻) in the leaves. This, resulted in increased lipid peroxidation (indicated by elevated malondialdehyde (MDA) levels), whichi further compromised the cell membrane. Application of 10 μmol·L<sup>-1</sup> MT effectively reduced ROS levels, lowered MDA content, and mitigated electrolyte leakage. MT also enhanced AsA and GSH levels, improved AsA/DHA and GSH/GSSG ratios, and upregulated key AsA-GSH cycle genes (<em>CsAPX, CsAAO, CsMDAR, CsDHAR, CsGR</em>), leading to a significant increase in enzymatic activity. In addition, MT alleviated stress-induced stomatal closure, thereby restoring normal stomatal function. These findings suggest that MT enhances saline-alkali tolerance by mitigating oxidative damage, promoting antioxidant defenses, and effectively preserving stomatal function. Thus, our study points to a sustainable strategy to improve crop resilience in salinized environments via MT application.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100789"},"PeriodicalIF":6.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recover and surpass: The mechanisms of plants transition upon rehydration from drought 恢复和超越:植物从干旱中恢复水分后的过渡机制
IF 6.8
Plant Stress Pub Date : 2025-03-01 DOI: 10.1016/j.stress.2025.100782
Xubo Ke , Jia Yao , Zhihan Jiang, Xinyue Gu, Pei Xu
{"title":"Recover and surpass: The mechanisms of plants transition upon rehydration from drought","authors":"Xubo Ke ,&nbsp;Jia Yao ,&nbsp;Zhihan Jiang,&nbsp;Xinyue Gu,&nbsp;Pei Xu","doi":"10.1016/j.stress.2025.100782","DOIUrl":"10.1016/j.stress.2025.100782","url":null,"abstract":"<div><div>As the global climate shifts and precipitation patterns evolve, the drought resistance of plants is being increasingly tested. There is a notable variation in the post-drought rehydration recovery capabilities among different plant species, which significantly influences both plant growth and the regulation of ecological environments. Researchers have achieved considerable advancements in the field of drought resistance; however, our comprehension of the processes involved in post-drought rehydration remains limited. Rehydration following a drought event is crucial not only for compensating plant growth but also for facilitating the recovery of terrestrial ecosystems. This paper begins by reviewing the current state of research on plant drought resistance and then delves into the progress and associated strategies for post-drought rehydration. Identifying the existing gaps in research, we propose potential directions for future studies to provide insights into how plants respond to drought and rehydration under changing climatic conditions. This collection of information is valuable to enhance our understanding of the rehydration mechanisms post-drought and to lay a theoretical foundation for the mining of rehydration genes and the improvement of drought-resistant plant varieties in the future.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100782"},"PeriodicalIF":6.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antifungal and plant-growth promoting potency of Streptomyces rochei against biotic stress caused by Race 4 Fusarium wilt on banana
IF 6.8
Plant Stress Pub Date : 2025-02-26 DOI: 10.1016/j.stress.2025.100779
Periakaruppan Jegan , Saraswathy Sethurathinam , Muthuvel Iyyamperumal , Rajangam Jacob , Angappan Kathithachalam , Jayakanthan Mannu , Soman Padmanabhan , Manimaran Gajendiran
{"title":"Antifungal and plant-growth promoting potency of Streptomyces rochei against biotic stress caused by Race 4 Fusarium wilt on banana","authors":"Periakaruppan Jegan ,&nbsp;Saraswathy Sethurathinam ,&nbsp;Muthuvel Iyyamperumal ,&nbsp;Rajangam Jacob ,&nbsp;Angappan Kathithachalam ,&nbsp;Jayakanthan Mannu ,&nbsp;Soman Padmanabhan ,&nbsp;Manimaran Gajendiran","doi":"10.1016/j.stress.2025.100779","DOIUrl":"10.1016/j.stress.2025.100779","url":null,"abstract":"<div><div>Banana is a staple food for millions of individuals, especially in regions with tropical and subtropical climates. Nevertheless, the cultivation of banana is under significant threat from <em>Fusarium</em> wilt, a harmful biotic stress transmitted through the soil and caused by <em>Fusarium oxysporum</em> f. sp. <em>cubense</em> (<em>Foc</em>). This disease has the potential to devastate and infect almost all the varieties of bananas, especially with the emergence of <em>Foc</em> race 4. This study investigates the possibility of <em>Streptomyces rochei</em> AMBEAROOT2, isolated from the banana, used as a biocontrol agent against <em>Fusarium</em> wilt in banana. The molecular characterization of ten <em>Foc</em> isolates identified <em>Fusarium oxysporum</em> f. sp. <em>cubense</em> TFOC6 as the most virulent and confirmed as race 4. <em>S. rochei</em> AMBEAROOT2 exhibited significant mycelial inhibition (62.3%) of <em>F. oxysporum</em> f. sp. <em>cubense</em> TFOC6 and plant growth-promoting characteristics, including indole-3-acetic acid, biofilm formation, and exopolysaccharide synthesis. Gas Chromatography-Mass Spectroscopy analysis identified metabolites produced by <em>S. rochei</em> AMBEAROOT2, with molecular docking investigations revealed strong binding affinities of compounds <em>viz.,</em> 3-phenyl-3-p-tolyl-1-(2,4,6-trimethyl-phenyl)-propane-1-one, 19-acetoxy-4,4-dimethyl-, oxime, Androst-5-en-3-one, and Pyrano [4,3] benzopyran-1,9-dione to key virulence proteins (Catalase-peroxidase, Kynureninase, Penta functional AROM polypeptide, and Ribose phosphate pyrophosphokinase) of <em>Foc</em>. In greenhouse conditions, micro-propagated banana plantlets treated with <em>S. rochei</em> AMBEAROOT2 demonstrated enhanced growth, improved physiological traits, and higher levels of defense enzymes compared to those inoculated with <em>F. oxysporum</em> f. sp. <em>cubense</em> TFOC6 alone. It also induced systemic resistance and a 100% decrease in the incidence of <em>Fusarium</em> wilt. In conclusion, <em>S. rochei</em> AMBEAROOT2 showed potential antifungal activities, promoted plant growth, and could be used to manage wilt disease in banana after field evaluation.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100779"},"PeriodicalIF":6.8,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Harnessing macroalgal cell walls to trigger immunity in Arabidopsis thaliana
IF 6.8
Plant Stress Pub Date : 2025-02-24 DOI: 10.1016/j.stress.2025.100783
Jorge Peláez , Carlos Frey , Diego Rebaque , Francisco Vilaplana , Antonio Encina , Hugo Mélida
{"title":"Harnessing macroalgal cell walls to trigger immunity in Arabidopsis thaliana","authors":"Jorge Peláez ,&nbsp;Carlos Frey ,&nbsp;Diego Rebaque ,&nbsp;Francisco Vilaplana ,&nbsp;Antonio Encina ,&nbsp;Hugo Mélida","doi":"10.1016/j.stress.2025.100783","DOIUrl":"10.1016/j.stress.2025.100783","url":null,"abstract":"<div><div>There is an increasing need to find sustainable alternatives to conventional agrochemicals to reduce biotic stress in crops. One possible strategy is based on promoting the innate defences of plants by stimulating their immune system. The plant immune system relies on the perception of molecules, which trigger a cascade of biochemical responses known as pattern-triggered immunity (PTI). This study investigated the potential of marine macroalgal cell wall components to be perceived by plants, act as elicitors of plant immune responses and induce disease resistance.</div><div>Cell walls of green, red, and brown algae species were chemically fractionated, and the research focused on testing their ability to induce immune responses in <em>Arabidopsis thaliana</em>. Different PTI hallmarks were tested, including H<sub>2</sub>O<sub>2</sub> production, mitogen-activated protein kinases (MAPKs) phosphorylation, and defence gene expression analysis. The results showed that the CaCl<sub>2</sub>-extracted fraction was particularly efficacious in inducing H<sub>2</sub>O<sub>2</sub> production. As the CaCl<sub>2</sub> fraction of all phylogenetic groups also triggered additional immune responses, its ability to protect Arabidopsis against the bacterial pathogen <em>Pseudomonas syringae</em> was evaluated, confirming that certain CaCl<sub>2</sub> fractions successfully provided resistance to the pathogen. The monosaccharide and glycosidic linkage analysis of these fractions pointed to some specific algal cell wall glycans (e.g. porphyrans and fucoidans) that could contribute to the immunostimulatory capacity, thereby paving the way for the identification of distinct structures with potential agrobiological applications.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100783"},"PeriodicalIF":6.8,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advancing lodging resistance in maize: Integrating genetic, hormonal, and agronomic insights for sustainable crop productivity
IF 6.8
Plant Stress Pub Date : 2025-02-22 DOI: 10.1016/j.stress.2025.100777
Shumila Ishfaq , Yi Ding , Xiaoyan Liang , Wei Guo
{"title":"Advancing lodging resistance in maize: Integrating genetic, hormonal, and agronomic insights for sustainable crop productivity","authors":"Shumila Ishfaq ,&nbsp;Yi Ding ,&nbsp;Xiaoyan Liang ,&nbsp;Wei Guo","doi":"10.1016/j.stress.2025.100777","DOIUrl":"10.1016/j.stress.2025.100777","url":null,"abstract":"<div><div>Crop lodging, characterized by the bending or breaking of plant stems, poses a significant challenge to global food security by reducing crop yields and complicating harvesting processes. This review explores the factors influencing lodging susceptibility, including environmental conditions, genetic traits, fertilizer management, pathogens, and hormonal regulation. Recent advancements in maize research have uncovered critical genetic traits and elucidated the roles of key hormonal pathways—such as gibberellin (GA), strigolactone (SL), auxin, and ethylene—in modulating stem elongation, tillering angles, and root system architecture. These pathways collectively shape crop architecture, with GA and SL contributing to stalk strength, and auxin and ethylene enhancing root development and plant stability. Concurrently, agronomic interventions, such as optimized planting density and nutrient management, have improved stem integrity and mitigated lodging risk. By integrating genetic, hormonal, and agronomic knowledge, researchers have made remarkable progress in developing maize varieties that resist lodging, enhancing crop resilience and yield stability under various environmental conditions. Future research should focus on unraveling the molecular and genetic mechanisms underlying lodging resistance, addressing technical limitations in implementation, and advancing sustainable agricultural practices to secure global food production and ensure long-term productivity.</div></div>","PeriodicalId":34736,"journal":{"name":"Plant Stress","volume":"15 ","pages":"Article 100777"},"PeriodicalIF":6.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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