Phenoloxidases: catechol oxidase - the temporary employer and laccase - the rising star of vascular plants.

ABSTRACT: Phenolics are vital for the adaptation of plants to terrestrial habitats and for species diversity. Phenoloxidases (catechol oxidases, COs, and laccases, LACs) are responsible for the oxidation and polymerization of phenolics. However, their origin, evolution, and differential roles during plant development and land colonization are unclear. We performed the phylogeny, domain, amino acids, compositional biases, and intron analyses to clarify the origin and evolution of COs and LACs, and analysed the structure, selective pressure, and chloroplast targeting to understand the species-dependent distribution of COs. We found that Streptophyta COs were not homologous to the Chlorophyta tyrosinases (TYRs), and might have been acquired by horizontal gene transfer from bacteria. COs expanded in bry

SUBMITTER: Liao J 

PROVIDER: S-EPMC10541563 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature