Mucilage cells in the flower of Rosales species: reflections on morphological diversity, classification, and functions.
Floral anatomy
Mucilage idioblasts
Mucilage reservoirs
Special mucilage cells
Unspecified mucilage cells
Journal
Protoplasma
ISSN: 1615-6102
Titre abrégé: Protoplasma
Pays: Austria
ID NLM: 9806853
Informations de publication
Date de publication:
Jul 2023
Jul 2023
Historique:
received:
26
08
2022
accepted:
01
01
2023
medline:
8
6
2023
pubmed:
13
1
2023
entrez:
12
1
2023
Statut:
ppublish
Résumé
The presence of mucilage cells in plants, studied mainly in vegetative organs, is a condition shared by several taxonomic groups and aspects related to their diversity have been discussed with systematic purposes. This study explores the flower distribution and classification of mucilage cells in Rosales species, with inferences about flower functions. Floral buds from fifty-seven species representing seven of nine families recognized in the Rosales were sampled and processed for light and transmission electron microscopy. Mucilage cells were found in about 40% of the studied species of Cannabaceae, Rhamnaceae, Ulmaceae, and Urticaceae families, whereas no floral mucilage cells were found in species of Elaeagnaceae, Moraceae, and Rosaceae. Mucilage cells were found in the epidermis and internal tissues of many organs of different floral morph types. There is a great diversity of forms of presentation of mucilage in cells, from smaller individualized single cells to very bulky cells and to completely filled mucilage reservoirs. In some cases, cells with mucilage apparently in the cell wall and others with mucilage in the vacuole seem to occur side by side. This diversity challenges the existing classifications of mucilage cells and reinforces the importance of ontogenetic and ultrastructural studies following the path of mucilage in cells in order to propose a more natural classification and to elucidate the evolution of mucilage cells in plants.
Identifiants
pubmed: 36635609
doi: 10.1007/s00709-023-01836-8
pii: 10.1007/s00709-023-01836-8
doi:
Substances chimiques
Polysaccharides
0
Plant Mucilage
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1135-1147Subventions
Organisme : Fapesp
ID : 2018/03691-8
Organisme : Capes
ID : 001
Organisme : CNPq
ID : 302806/2019-9
Informations de copyright
© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.
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