Linking Compost Residue to ABAGE in Plants - a Short Note

Authors:

DOI: 10.23880/oajar-16000359

Volume 9, Issue 2

Abstract

Compost residue refers to legacy compost present in the soil from what remains after microbial and plant utilization and losses. These losses may be nutrients and other non-nutrients that migrate out of the soil or vaporize. Compost is a brown to dark-brown humic material derived from the biological decomposition of organic matter. Compost contains humic and nonsubstances, which include fulvic acid, humic acid and humin, nutrient elements, and macromolecules such as nucleic acids, carbohydrates, proteins, fats and lipids, and various beneficial microbiome communities. Following soil amendments with compost, some of these substances remain as residues at the end of the growing season and form complexes with the soil organic matter. Abscisic acid glucose ester (ABAGE) is one of the catabolites of ABA formed by conjugation of small molecules such as glucose and catalyzed by the ABA O-glycosyl transferase enzyme. ABAGE is proposed to be the storage or transport forms of ABA. ABAGE is hydrolyzed by BGLU18 to free ABA under stress conditions.

Keywords: Organic Farming; Sustainable Farming; Soil Health; Organic Carbon

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