Open AccessAnatomy and ultrastructure of osmophores of Cymbidium tracyanum Rolfe (Orchidaceae)
Author(s) -
Małgorzata Stpiczyńska
Publication year - 2014
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.1993.001
Subject(s) - orchidaceae , biology , ultrastructure , cymbidium , anatomy , petal , plastid , botany , endoplasmic reticulum , microbiology and biotechnology , chloroplast , biochemistry , gene
The intense smell secreted by flowers of Cymbidium tracyanum Rolfe (Orchidaceae) derives from osmophores situated on the axipetal surface, mainly at the petals' base and the margin of labellum. The epiderm in those places created vesicular or somewhat elongated glandular cells, particularly on the labellum. In the production of smell 2-3 layers of subepidermal cells also take part. Submicroscopic examinations showed that those cells were characterized by the presence of a big nucleus. There were also numerous granules of starch and plastoglobules in plastids, a great amount of mitochondria and smooth-surfaced endoplasmic reticula. The traces of secretion products are visible on the surface of glandular cells. The above mentioned features are typical for osmophore cells