Osmophores of the fragrant orchid Gymnadenia conopsea L. (Orchidaceae)

Małgorzata Stpiczyńska

Abstract


Osmophores of Gymnadenia conopsea are located on the adaxial surface of labellum and on distal parts of two lateral sepals. Osmophore cells are characterised with a large nucleus, and dense, granular cytoplasm, which contains numerous membranes of ER and large lipid droplets. Plastids are probably involved in the synthesis of fragrant substances and, contrary to the most of investigated orchid species, they do not contain starch. Numerous secretory vesicles take part in the secretion. Secreted fragrant substance migrates across the cell wall and through the pores in the cuticle. It is not accumulated on the osmophore cell surface.

Keywords


Gynmudenia canopies L.; Orchidaceae; osmophore; anatomy; ultrastructure

Full Text:

PDF


DOI: https://doi.org/10.5586/asbp.2001.012

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
This is an Open Access journal, which distributes its content under the terms of the Creative Commons Attribution License, which permits redistribution, commercial and non-commercial, provided that the content is properly cited.
The journal is a member of the Committee on Publication Ethics (COPE) and aims to follow the COPE’s principles.
The journal publisher is a member of the Open Access Scholarly Publishers Association.
The journal content is indexed in Similarity Check, the Crossref initiative to prevent scholarly and professional plagiarism.
Publisher
Polish Botanical Society