Contrasting Responses of Plastid Terminal Oxidase Activity Under Salt Stress in Two C₄ Species With Different Salt Tolerance.

ABSTRACT: The present study reveals contrasting responses of photosynthesis to salt stress in two C₄ species: a glycophyte Setaria viridis (SV) and a halophyte Spartina alterniflora (SA). Specifically, the effect of short-term salt stress treatment on the photosynthetic CO₂ uptake and electron transport were investigated in SV and its salt-tolerant close relative SA. In this experiment, at the beginning, plants were grown in soil then were exposed to salt stress under hydroponic conditions for two weeks. SV demonstrated a much higher susceptibility to salt stress than SA; while, SV was incapable to survive subjected to about 100 mM, SA can tolerate salt concentrations up to 550 mM with slight effect on photos

SUBMITTER: Essemine J 

PROVIDER: S-EPMC7359412 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature