Arbuscular mycorrhizal fungi (AMF) species and abundance exhibit different effects on saline-alkaline tolerance in Leymus chinensis

Journal of plant interactions

article

Yaping Cao¹  Xuefeng Wu¹  Anastasiia Zhukova¹  Zhanhui Tang¹  Yue Weng¹  Zhenxin Li¹  Yurong Yang¹ 

[1] a State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Key Laboratory for Vegetation Ecology, Ministry of Education, Jilin Provincial Key Laboratory of Ecological Restoration and Ecosystem Management, School of Environment, Northeast Normal University;Peoples’ Friendship University of Russia

关键词: Arbuscular mycorrhizal fungi;    Leymus chinensis;    salinealkaline tolerance;    AMF species;    AMF abundance;   

DOI  :  10.1080/17429145.2020.1802524

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

Arbuscular mycorrhizal fungi (AMF) was considered as a biotechnological tool for plant stress tolerance improvement and degraded ecosystem restoration. However, the variations in the effects of AMF species and abundance on plant performance under stress condition have to be still investigated. The study was conducted to evaluate the mechanisms of five AMF species, single or mixture, on Leymus chinensis stress tolerance along a saline-alkaline gradient. The results showed that AMF enhanced plant stress tolerance by promoting plant growth, enhancing nutrient absorption, maintaining ion balance, and improving photosynthetic efficiency. Funneliformis mosseae, Rhizophagus intraradices and the mixture treatments had more beneficial effects than Diversispora versiformis and Acaulospora scrobiculata inoculations. Plant grown under high stress level exhibited more benefits from AMF symbiosis. Our study suggests that not only presence of AMF, but also the species and abundance should be considered to reveal the exact effects of AMF on plant saline-alkaline tolerance and degraded grassland restoration.

【 授权许可】

CC BY|CC BY-NC