The role of amino acid metabolism in signaling and metabolic adaptation to stress-induced energy deficiency in plants

Abstract The adaptation of plant metabolism to stress-induced energy deficiency involves profound changes in amino acid metabolism. Anabolic reactions are suppressed, whereas respiratory pathways that use acids as alternative substrates activated. This review highlights recent progress unraveling the oxidation pathways, their regulation, and role signaling molecules. We present an updated map degradation for lysine branched-chain acids. regulation during deprivation, including coordinated induction several catabolic is mediated by balance between TOR SnRK signaling. Recent findings indicate some might act nutrient signals activation thus promote a shift from anabolic pathways. sulfur-containing cysteine highly interconnected with Mechanistic details have recently been elucidated abscisic acid-dependent drought response. Local synthesis triggers production and, addition, produces gaseous messenger hydrogen sulfide, which promotes stomatal closure via protein persulfidation. Amino plants still emerging topic potential fundamental discoveries.