Functional Studies and Expression Characteristics of the Vacuolar Sugar Transporter CoSWEET2a in <i>Camellia oleifera</i>.

ABSTRACT: Sugar transporters of the SWEET family are essential for plant growth, development, yield formation, and stress responses by regulating sugar transport and distribution. This study characterizes the function and expression characteristics of CoSWEET2a, a Clade I SWEET gene in Camellia oleifera. We conducted subcellular localization, functional complementation in Arabidopsis, sugar response assays, drought tolerance tests, and hormone induction analysis. A key finding is CoSWEET2a, which that is localized on the vacuolar membrane in Camellia oleifera. Heterologous expression in Arabidopsis atsweet2 mutants revealed sugar-specific effects on root growth. Moreover, expression of CoSWEET2a increased soluble sugar content in Arabidopsis seeds. Ad

SUBMITTER: Zou X 

PROVIDER: S-EPMC12430227 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature