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Histological and ultrastructural features of the peculiar seta and stem of Leucodon canariensis (Leucodontaceae).
- Source :
-
Plant Biosystems . Feb2024, Vol. 158 Issue 1, p190-200. 11p. - Publication Year :
- 2024
-
Abstract
- The seta and stem in Leucodon canariensis are examined by means of light microscopy, transmission and scanning electron microscopy. Their anatomies reveal relevant differences although both show a remarkable structural complexity, as their conducting tissues are equally effective in carrying out essential processes. Five types of cells have been recognized in the transverse sections: in both seta and stem: (i) stereids in the external region with a peripheral cuticle; in the stem only: (ii) parenchymatous cells with plasmodesmata underlying the stereids; in the seta only: (iii) an unusual area of nacreous-walled cells without live protoplasm, surrounding (iv) the food-conducting cells (leptoid-like), and again both in seta and stem: (v) hydroids in the internal region. The seta in this species has a peculiar organization and shares some characteristics with polytrichaceous mosses; the ultrastructural similarities and differences and functional significance of these cells are discussed, both systematically and in relation to the habit of the moss itself. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11263504
- Volume :
- 158
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Plant Biosystems
- Publication Type :
- Academic Journal
- Accession number :
- 176072445
- Full Text :
- https://doi.org/10.1080/11263504.2023.2293041