Floral features of two species of Bulbophyllum section Lepidorhiza Schltr.: B. levanae Ames and B. nymphopolitanum Kraenzl. (Bulbophyllinae Schltr., Orchidaceae)
Natalia Wiśniewska , Agnieszka Kowalkowska , Małgorzata Kozieradzka-Kiszkurno , Agnieszka T. Krawczyńska , Jerzy Bohdanowicz
AbstractTwo representatives of section Lepidorhiza, previously sometimes considered conspecific, Bulbophyllum levanae and Bulbophyllum nymphopolitanum, demonstrated both similarities and differences in floral features. There were significant differences in the length of sepals and micromorphological features of the labellum. In both species, osmophores are located on the extended apices of sepals and possibly on petals. An abundance of proteins in tepals is probably associated with the unpleasant scent of the flowers, whereas the thin wax layers on the epidermis are probably involved in the maintenance of the brilliance of floral tepals, which strongly attracts flies. In all tepals of both species, we noted the presence of dihydroxyphenolic globules in the cytoplasm after staining with FeCl3. Comparison with ultrastructure results revealed that they were associated with plastids containing plastoglobuli. The most remarkable feature was the presence of a prominent periplasmic space in the epidermal cells of both investigated species. Furthermore, in the labellum of B. levanae, the cuticle contained microchannels. The combination of periplasmic space and microchannels has not previously been recorded.
|Journal series||Protoplasma, ISSN 0033-183X, (A 30 pkt)|
|Publication size in sheets||0.70|
|Keywords in English||Bulbophyllum, Bulbophyllum levanae, Bulbophyllum nymphopolitanum, histochemistry, Lepidorhiza, micromorphology, Orchidaceae, ultrastructure|
|ASJC Classification||; ;|
|Score||= 30.0, 28-01-2020, ArticleFromJournal|
|Publication indicators||= 4.000; : 2016 = 0.962; : 2018 = 2.633 (2) - 2018=2.583 (5)|
|Citation count*||9 (2020-08-04)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.