Genome-wide identification and expression analysis of proline synthesis and catabolism genes in kiwifruit: exploring the role of <i>AcP5CS1</i> in salt tolerance.

ABSTRACT: The regulation of proline metabolism is critical for enhancing plant stress tolerance by promoting proline accumulation under abiotic stress conditions. Key enzymes in this pathway include Δ1-pyrroline-5-carboxylate synthase (P5CS), pyrroline-5-carboxylate reductase (P5CR), ornithine δ-aminotransferase (δ-OAT), proline dehydrogenase (PDH), and pyrroline-5-carboxylate dehydrogenase (P5CDH). Despite their importance, comprehensive identification and characterization of these gene families in kiwifruit (Actinidia chinensis) remain unexplored. This study identified two AcP5CSs, one AcP5CR, one AcOAT, three AcPDHs, and one AcP5CDH within the kiwifruit genome. This research comprehensively examined phylogenetic tree, gene structure, motif analysis, cis-r

SUBMITTER: Yang J 

PROVIDER: S-EPMC12441012 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature