Integrative analysis of the late maturation programme and desiccation tolerance mechanisms in intermediate coffee seeds.

ABSTRACT: The 'intermediate seed' category was defined in the early 1990s using coffee (Coffea arabica) as a model. In contrast to orthodox seeds, intermediate seeds cannot survive complete drying, which is a major constraint for seed storage and has implications for both biodiversity conservation and agricultural purposes. However, intermediate seeds are considerably more tolerant to drying than recalcitrant seeds, which are highly sensitive to desiccation. To gain insight into the mechanisms governing such differences, changes in desiccation tolerance (DT), hormone contents, and the transcriptome were analysed in developing coffee seeds. Acquisition of DT coincided with a dramatic transcriptional switch characterised by the repression of primary metabolism, photosynthesis, and respiration, and the

SUBMITTER: Dussert S 

PROVIDER: S-EPMC5888931 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature