Salt adaptability in a halophytic soybean (Glycine soja) involves photosystems coordination.

ABSTRACT:

Background

Glycine soja is a halophytic soybean native to saline soil in Yellow River Delta, China. Photosystem I (PSI) performance and the interaction between photosystem II (PSII) and PSI remain unclear in Glycine soja under salt stress. This study aimed to explore salt adaptability in Glycine soja in terms of photosystems coordination.

Results

Potted Glycine soja was exposed to 300 mM NaCl for 9 days with a cultivated soybean, Glycine max, as control. Under salt stress, the maximal photochemical efficiency of PSII (Fv/Fm) and PSI (△MR/MR₀) were significantly decreased with the loss of PSI and PSII reaction center proteins in Glycine max, and greater PSI vulnerability was suggested by earlier decrease in △MR/MR₀ than Fv/Fm and depressed PSI oxidation

SUBMITTER: Yan K 

PROVIDER: S-EPMC7149873 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature