Arbuscular mycorrhizal fungi decrease soil nitrate by accelerating mulberry uptake and dissimilatory nitrate reduction to ammonium
文献类型： 外文期刊
作者： Xing, Dan 1 ; Zhang, Huirong 1 ; Cheng, Hongguang 3 ; Zhang, Fang 1 ; Shi, Yanjin 1 ; Peng, Shiqing 1 ; Luo, Chaobin 1 ; Twagirayezu, Gratien 3 ;
作者机构： 1.Guizhou Acad Agr Sci, Inst Sericulture, Guiyang 550006, Peoples R China
2.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710000, Peoples R China
3.Chinese Acad Sci, Inst Geochem, Guiyang 550081, Peoples R China
关键词： Soil Nitrate; Arbuscular Mycorrhizal Fungi; Plants; Nitrogen Cycle; Microorganisms
期刊名称：ENVIRONMENTAL TECHNOLOGY & INNOVATION （ 影响因子：7.1； 五年影响因子：7.1 ）
ISSN： 2352-1864
年卷期： 2025 年 38 卷
页码：
收录情况： SCI
摘要： Karst landforms, characterized by their shallow and nutrient-poor soils, are susceptible to nitrate leaching loss, leading to environmental pollution and health risks. This study investigates the role of arbuscular mycorrhizal fungi (AMF) in mitigating deep soil nitrate accumulation through enhanced mulberry uptake and dissimilatory nitrate reduction to ammonium (DNRA). A 4-month symbiotic experiment with mulberry (Morus alba L.) and two AMF species (Funneliformis mosseae and Rhizophagus intraradices) was conducted. We found that AMF treatments significantly reduced soil nitrate levels by 10.5 %-58.9 %, while increased soil ammonium by 35.9 %-63.3 %, and enhanced mulberry nitrogen accumulation by 5.2 %-17.8 %. Microbial community analysis revealed significant shifts in nitrogen-cycling microorganisms, with Proteobacteria, Acidobacteria, and Actinobacteria as dominant phyla. AMF inoculation slowed nitrification and denitrification in deeper soil layers while accelerating DNRA, as evidenced by changes in the abundance of nirK/ nirS and nrfA/nrfH genes. Structural equation modeling underscored the significant feedback effects of plants and soil nitrogen-cycling microorganisms under AMF influence. This study provides novel insights into the ecological benefits of mycorrhizal symbiosis in managing soil nitrogen dynamics.
- 相关文献
作者其他论文 更多>>
-
Effect of Phosphate Amendment on Cadmium Accumulation in Pepper (Capsicum annuum L.) Grown in Geogenic Cd-Rich Soil from the Karst Region
作者：Li, Yuyang;Zhou, Wangwang;Zhang, Yongxiang;Liu, Yizhang;Xing, Dan;Wen, Rong;Wen, Rong;Zhou, Wangwang;Zhang, Yongxiang
关键词：soil pollution; heavy metal; Cd accumulation; phosphorus; food crops
-
Preparation and characterization of novel acylated chitosan/carboxymethyl konjac glucomannan nanogels for the encapsulation of polyphenols
作者：Long, Mingxiu;Chen, Zhaojun;Zeng, Zhilong;Liu, Xiong;Long, Mingxiu;Li, Yongfu;Tian, Zhuxi;Zhang, Fang;Wang, Hui;Chen, Zhaojun;Luo, Jingwen
关键词：Acylated chitosan; Carboxymethyl konjac polysaccharide; Nanogel; Polyphenols
-
A comprehensive evaluation of appearance stability during rice storage based on analytic hierarchy process
作者：Tian, Jinyu;Jiang, Mingjin;Ji, Guangmei;Zhang, Jiafeng;Luo, Danqiu;Zhang, Fang;Li, Lijiang;Li, Min
关键词：Rice grain; Appearance; Storage stability; Hierarchical analyses; Comprehensive evaluation
-
Evaluation of Rice Quality Storage Stability: From Variety Screening to Trait Identification
作者：Tian, Jinyu;Ji, Guangmei;Zhang, Jiafeng;Luo, Danqiu;Zhang, Fang;Li, Lijiang;Jiang, Mingjin;Li, Min;Zhu, Dawei
关键词：rice; grain quality; storage stability; variety screening; characterization analysis
-
Physiological and biochemical responses of pepper (Capsicum annuum) to cadmium stress: The mitigating effects of exogenous abscisic acid
作者：Tu, Dehui;Tian, Xiao;Liang, Chuangjing;Zhou, Peng;Wang, Yongping;Xing, Dan;Liu, Yizhang
关键词：Cell wall; Abscisic acid; Oxidative stress; Cd stress; Subcellular distribution
-
Dietary Sodium Butyrate Supplementation Enhances Silkworm Silk Yield by Simultaneously Promoting Larval Growth and Silk Gland Development
作者：Ren, Xiaoxiao;Ye, Zhanfeng;Qing, Zhuo;Yang, Wanjun;Luo, Chaobin;Xing, Dan;He, Xingjiang
关键词：silkworm; sodium butyrate; silk yield; body growth; silk gland development
-
Effects of fungicide application on susceptible pepper cultivar under southern blight stress
作者：Wen, Rong;Xing, Dan;Wen, Rong;Liang, Chuanjing;Wang, Yongping;Tu, Dehui;Luo, Zhenyi;Xing, Dan;Song, Dandan;Wu, Zhibing;Twagirayezu, Gratien;Zhang, Shicai;Wu, Kangyun
关键词：Sclerotium rolfsii sacc; Pepper southern blight; Susceptible cultivar; Fungicide; Root system
