What role does the seed coat play during symbiotic seed germination in orchids: an experimental approach with Dendrobium officinale.

ABSTRACT:

Background

Orchids require specific mycorrhizal associations for seed germination. During symbiotic germination, the seed coat is the first point of fungal attachment, and whether the seed coat plays a role in the identification of compatible and incompatible fungi is unclear. Here, we compared the effects of compatible and incompatible fungi on seed germination, protocorm formation, seedling development, and colonization patterns in Dendrobium officinale; additionally, two experimental approaches, seeds pretreated with NaClO to change the permeability of the seed coat and fungi incubated with in vitro-produced protocorms, were used to assess the role of seed coat played during symbiotic seed germination.

Results

The two compatible fungi, Tulasnella sp. TPYD-2 and Serendipit

SUBMITTER: Chen XG 

PROVIDER: S-EPMC9336064 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature