Secondary sulfur metabolism in cellular signalling and oxidative stress responses.

摘要: The sulfur metabolism pathway in plants produces a variety of compounds that are central to the acclimation response oxidative stresses such as drought and high light. Primary assimilation provides amino acid cysteine, which is utilized protein synthesis precursor for cellular redox buffer glutathione. In contrast, secondary sulfated glucosinolates peptides, well corresponding by-product 3'-phosphoadenosine 5'-phosphate (PAP). Emerging evidence over past decade has shown also crucial engagement during stress. This occurs across various cellular, tissue, organismal levels including chloroplast-to-nucleus retrograde signalling events mediated by PAP, modulation hormonal control physiological responses stomatal closure, potential regulation plant growth. this review, we examine contribution different components stress homeostasis, how metabolically regulated. We further outline key outstanding questions field necessary understand why 'specialized' metabolic plays significant roles tolerance.