Mechanism of floral scent production in Osmanthus fragrans and the production and regulation of its key floral constituents, β-ionone and linalool.

ABSTRACT: Sweet osmanthus (Osmanthus fragrans Lour.) is among the top ten most well-known flowers in China and is recognized as both an aromatic plant and ornamental flower. Here, manual sectioning, scanning electron microscopy, and transmission electron microscopy of sweet osmanthus petals revealed that large amounts of lipids are present inside the petal cells and on the cell surfaces. However, no secretory structures were observed. Instead, the petal cells protrude slightly outward, and the surfaces of the cells are adorned with highly regular brush-shaped hairs. The surfaces of the 'Yingui' petals possessed mostly curled and more numerous hairs, whereas the 'Dangui' petals possessed fewer brush-shaped and more sparsely arranged hairs. In addition, many granular substances were attached to

SUBMITTER: Han Y 

PROVIDER: S-EPMC6804851 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature