Biosynthesis and role of isoflavonoids in legumes under different environmental conditions
2023
Kristina Trush | Peter Pal'ove-Balang
Isoflavonoids represent an important group of phenolic compounds in legumes that have significant health benefits for humans. In plants, they play crucial roles in adaptation to the biological environment both as defensive compounds and signaling molecules in symbiotic nitrogen fixation and rhizobia. Moreover, increasing evidence is available about the accumulation of isoflavonoids upon abiotic stress. The present review focuses on the induction of isoflavonoid biosynthesis under different types of abiotic stress factors. Isoflavonoids are likely involved in antioxidant defence, UV-radiation absorbence and metal chelation. Emphasis is put on their possible functions and cross-reactions between biotic and abiotic stress responses. The variety of functions of isoflavonoids predestines them for use in improving the defence capacity of legume species in changing climatic conditions.
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