Synergy of arbuscular mycorrhizal symbiosis and exogenous Ca²⁺ benefits peanut (Arachis hypogaea L.) growth through the shared hormone and flavonoid pathway.

ABSTRACT: Peanut yield is severely affected by exchangeable calcium ion (Ca²⁺) deficiency in the soil. Arbuscular mycorrhizal (AM) symbiosis increases the absorption of Ca²⁺ for host plants. Here, we analyzed the physiological and transcriptional changes in the roots of Arachis hypogaea L. colonized by Funneliformis mosseae under Ca²⁺-deficient and -sufficient conditions. The results showed that exogenous Ca²⁺ application increased arbuscular mycorrhizal fungi (AMF) colonization, plant dry weight, and Ca content of AM plants. Simultaneously, transcriptome analysis showed that Ca²⁺ application further induced 74.5% of differentially expressed gene transcripts in roots of AM peanut seedlings. These genes are involved in AM symbiosis development, h

SUBMITTER: Cui L 

PROVIDER: S-EPMC6838158 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature