Peroxisomal Localization of Benzyl Alcohol O-Benzoyltransferase HSR201 is Mediated by a Non-canonical Peroxisomal Targeting Signal and Required for Salicylic Acid Biosynthesis.

ABSTRACT: The phytohormone salicylic acid (SA) regulates plant responses to various types of environmental stress, particularly pathogen infections. We previously revealed that the benzyl alcohol O-benzoyltransferase HSR201 was required for pathogen signal-induced SA synthesis, and its overexpression together with NtCNL, encoding a cinnamate-coenzyme A ligase, was sufficient for the production of significant amounts of SA in tobacco. We herein examined the subcellular localization of HSR201 and found that it fused to a yellow fluorescent protein localized in peroxisomes. Most peroxisomal matrix proteins possess peroxisomal targeting signal type-1 (PTS1) located at the extreme C-terminus or PTS2 located at the N-terminus; however, a bioinformatics analysis failed to identify similar signals for HSR20

SUBMITTER: Kotera Y 

PROVIDER: S-EPMC11662444 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature