Complex regulatory network allows Myriophyllum aquaticum to thrive under high-concentration ammonia toxicity.

ABSTRACT: Plants easily experience ammonia (NH₄⁺) toxicity, especially aquatic plants. However, a unique wetland plant species, Myriophyllum aquaticum, can survive in livestock wastewater with more than 26 mM NH₄⁺. In this study, the mechanisms of the M. aquaticum response to NH₄⁺ toxicity were analysed with RNA-seq. Preliminary analysis of enzyme activities indicated that key enzymes involved in nitrogen metabolism were activated to assimilate toxic NH₄⁺ into amino acids and proteins. In response to photosystem damage, M. aquaticum seemed to remobilize starch and cellulose for greater carbon and energy supplies to resist NH₄⁺ toxicity. Antioxidative enzyme activity and the secondary metabol

SUBMITTER: Wang R 

PROVIDER: S-EPMC6423053 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature