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- Title
Effect of inoculation with arbuscular mycorrhizal fungi on the energy metabolism of selenite‐rich amaranth.
- Authors
Mu, Mao; Lu, Yunmei; Liao, Haolin; Huang, Renhua
- Abstract
A series of pot trials were undertaken to examine the impact of four arbuscular mycorrhizal fungi (AMF), namely Glomus mosseae (G.m), Glomus etunicatum (G.e), Corymbiglomus tortuosum (C.t), and the combined application of Glomus etunicatum and Corymbiglomus tortuosum (G.e + C.t), on the energy metabolism of amaranth plants grown in soil enriched with selenite at a concentration of 0.5 mg kg−1. The inoculation of four AMFs resulted in an increase in both amaranth biomass and selenium (Se) content in leaves. The activities of phosphoglucose isomerase (PGI) and glucose‐6‐phosphate dehydrogenase + 6‐phosphogluconate dehydrogenase were observed to decrease when AMFs were inoculated, as compared with the absence of AMF inoculation. The inoculation with G.m, C.t, and G.e + C.t resulted in an increase in succinate dehydrogenase activity; however, the inoculation with G.m, G.e, and G.e + C.t led to an increase in ascorbate oxidase activity. Furthermore, the inoculation of all four AMFs resulted in an increase in cytochrome c oxidase activity and the concentrations of oxidized coenzyme I (NAD) and reduced coenzyme I (NADH). The polyphenol oxidase activity of amaranth plants increased when inoculated with G.m and G.e, whereas it decreased when inoculated with C.t and G.e + C.t. Furthermore, the application of all four AMF treatments resulted in a reduction in adenosine triphosphate (ATP) levels and energy charge. It was worth mentioning that there was a clear inverse relationship between the energy charge and the biomass, Se concentration in the leaves. The findings presented in this research indicated that AMF may have an impact on energy metabolism and ultimately the biomass of amaranth by influencing the uptake of Se.
- Subjects
VESICULAR-arbuscular mycorrhizas; FUNGAL metabolism; ENERGY metabolism; NAD (Coenzyme); NADH dehydrogenase; CYTOCHROME oxidase; SELENOPROTEINS; AMARANTHUS palmeri; AMARANTHS
- Publication
Journal of Basic Microbiology, 2024, Vol 64, Issue 3, p1
- ISSN
0233-111X
- Publication type
Article
- DOI
10.1002/jobm.202300424