Sugar import mediated by sugar transporters and cell wall invertases for seed development in Camellia oleifera.

ABSTRACT: Seed development and yield depend on the transport and supply of sugar. However, an insufficient supply of nutrients from maternal tissues to embryos results in seed abortion and yield reduction in Camellia oleifera. In this study, we systematically examined the route and regulatory mechanisms of sugar import into developing C. oleifera seeds using a combination of histological observations, transcriptome profiling, and functional analysis. Labelling with the tracer carboxyfluorescein revealed a symplasmic route in the integument and an apoplasmic route for postphloem transport at the maternal-filial interface. Enzymatic activity and histological observation showed that at early stages [180-220 days after pollination (DAP)] of embryo differentiation, the high hexose/sucrose r

SUBMITTER: Du B 

PROVIDER: S-EPMC11226869 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature