Sulphur metabolism: The backbone of plant system

Abstract

The sulphate (SO42-) assimilation pathway provides the essential nutrient sulphur for plants with a tightly regulated and coordinated pathway with the demand for reduced sulphur (S). The responses of enzyme activities, mRNA levels and metabolite concentrations against numerous environmental cues and signals have been established for this pathway. In this review, different regulation mechanisms will be attended by identifying major gaps along with S-containing defence compounds (SDCs) in possible ways.