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Trichoderma asperellum benefits nitrogen acquisition and K+/Na+ homeostasis in wolfberry under salt stress via activation of root plasma membrane H+-ATPase

文献类型：期刊论文

作者Yan, Kun1; Chi, Guangyu2; Zhu, Mingye1; Sun, Haoyu3; Yu, Shunyang4; Li, Yuxin1; Wang, Ziyu1; Hu, Junyuan1; Chen, Xin2
刊名TREE PHYSIOLOGY
出版日期2025-12-01
卷号45期号:12页码:13
关键词ionic balance nitrogen absorption non-invasive micro-test photosynthesis salt adaptability
ISSN号0829-318X
DOI10.1093/treephys/tpaf139
通讯作者Yan, Kun(kyan@ldu.edu.cn) ; Chen, Xin(chenxin@iae.ac.cn)
英文摘要Trichoderma is reported to enhance plant salt adaptability, but the mechanisms still need in-depth investigation. This study sought to dissect how Trichoderma asperellum manipulates root ions exchange in salt-stressed wolfberry (Lycium chinense) to satisfy nitrogen acquisition and preserve K+/Na+ homeostasis. Trichoderma agent (TA) was supplemented around the roots of potted plants, and salt stress was conducted by watering with NaCl solution. Salt adaptability of wolfberry was enhanced by T. asperellum, as TA supplement protected photosynthesis, alleviated biomass reduction and increased tissue N accumulation and K+/Na+ under salt stress. Consistently, T. asperellum enhanced root Na+ extrusion and K+ retention in salt-stressed wolfberry, which was related to Na+/H+ antiporter and K+ outward-rectifying channels, as pretreatments with their inhibitors depressed root Na+ efflux but caused K+ efflux. Considering inhibited plasma membrane (PM) H+-ATPase synchronously dampened root Na+ extrusion and K+ retention under salt stress, T. asperellum was inferred to enhance root Na+ extrusion and K+ retention in salt-stressed wolfberry by inducing PM H+-ATPase. Elevated root plasma membrane H+-ATPase activity by T. asperellum was actually observed in salt-stressed wolfberry and had nothing with constitutive transcript expression. The activated H+-ATPase by T. asperellum also provided more driving force for H+/NO3- symporter and increased root NO3- absorption. Trichoderma asperellum prevented salt-induced great root NH4+ efflux and retained mild NH4+ influx likely because NH4+ efflux was not required for restricting Na+ entry. Overall, T. asperellum activated root plasma membrane H+-ATPase to optimizing root ions exchange and then improved nitrogen acquisition and K+/Na+ homeostasis in wolfberry under salt stress. According to the structural equation model analysis, PM H+-ATPase had a positive effect on photosynthesis, root sugar content, root respiration and itself sequentially, highlighting that the activated root PM H+-ATPase by TA supplement enhanced wolfberry salt adaptability by driving a favorable cooperation between roots and aerial part.
WOS关键词LONICERA-JAPONICA THUNB. ; POPULUS X CANESCENS ; ION HOMEOSTASIS ; SALINITY TOLERANCE ; NITRATE UPTAKE ; GROWTH ; FLUXES ; SOIL ; ACCUMULATION ; INVOLVEMENT
WOS研究方向Forestry
语种英语
WOS记录号WOS:001638552300001
资助机构Joint Funds of the National Natural Science Foundation of China ; Fund of Central Guidance for the Local ; Shandong Provincial Natural Science Foundation
源URL[http://ir.yic.ac.cn/handle/133337/41937]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Yan, Kun; Chen, Xin
作者单位1.Ludong Univ, Sch Hort, Yantai Key Lab Mol Breeding High Yield & Stress Re, Yantai 264025, Peoples R China
2.Chinese Acad Sci, Shenyang Inst Appl Ecol, Shenyang 110016, Peoples R China
3.Ludong Univ, Sch Resources & Environm Engn, Yantai, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714		 Yan, Kun,Chi, Guangyu,Zhu, Mingye,et al. Trichoderma asperellum benefits nitrogen acquisition and K+/Na+ homeostasis in wolfberry under salt stress via activation of root plasma membrane H+-ATPase[J]. TREE PHYSIOLOGY,2025,45(12):13.
APA Yan, Kun.,Chi, Guangyu.,Zhu, Mingye.,Sun, Haoyu.,Yu, Shunyang.,...&Chen, Xin.(2025).Trichoderma asperellum benefits nitrogen acquisition and K+/Na+ homeostasis in wolfberry under salt stress via activation of root plasma membrane H+-ATPase.TREE PHYSIOLOGY,45(12),13.
MLA Yan, Kun,et al."Trichoderma asperellum benefits nitrogen acquisition and K+/Na+ homeostasis in wolfberry under salt stress via activation of root plasma membrane H+-ATPase".TREE PHYSIOLOGY 45.12(2025):13.

入库方式： OAI收割

来源：烟台海岸带研究所

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