Identification and functional characterization of AsWRKY9, a WRKY transcription factor modulating alliin biosynthesis in garlic (Allium sativum L.).

ABSTRACT:

Background

The variations in alliin content are a crucial criterion for evaluating garlic quality and is the sole precursor for allicin biosynthesis, which is significant for the growth, development, and stress response of garlic. WRKY transcription factors are essential for enhancing stress resistance by regulating the synthesis of plant secondary metabolites. However, the molecular mechanisms regulating alliin biosynthesis remain unexplored. Here, we report for the first time that a WRKY family transcription factor regulates the expression of a key enzyme gene in the alliin biosynthesis pathway, enhancing the accumulation of alliin.

Results

AsWRKY9 was most highly expressed in garlic leaves, and its expression was significantly upregulated at various time points following

SUBMITTER: Wu J 

PROVIDER: S-EPMC11731438 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature