Editorial: Physiological Aspects of Non-proteinogenic Amino Acids in Plants

Abstract

In addition to the canonical 20 amino acids that constitute the essential building blocks of proteins, plants produce a wide variety of non-proteinogenic amino acids (NPAAs; Some of these plant metabolites are components of central metabolism, serving as intermediates in biosynthetic pathways or as signaling molecules during plant stress responses. NPAAs such as ornithine, citrulline, arginosuccinate, homoserine, homocysteine, and cystathionine, are well-studied metabolic intermediates and are likely to be present in all plant species. Other commonly encountered plant NPAAs, for instance pipecolic acid with its derivatives, can function as signaling molecules that influence plant development, physiology, and defense responses

Topics & Concepts