Padua Research Archive, l’archivio istituzionale della produzione scientifica dell’Università degli Studi di Padova, ha lo scopo di raccogliere, documentare, conservare e pubblicare, anche ad accesso aperto, i prodotti della ricerca dell’Ateneo. Padua Research Archive utilizza la piattaforma IRIS (Institutional Research Information System) sviluppata da Cineca.
EnglishCell wall ultrastructure was compared in mature thalli of Cystoseira barbata (Goodenough et Woodward) J. Agardh (Phaeophyta), Gracilaria verrucosa (Hudson) Papenfuss (Rhodophyta) and Enteromorpha intestinalis (Linnaeus) Link (Chlorophyta), providing a structural basis for the study of cation localization (through the K antimonate precipitation technique). These species showed different amounts of antimonate precipitates and different patterns of cation localization in the apoplast. SEM X-ray microanalyses allowed the localization of sulphated polysaccharides through the Speak and identification of the cations present in the cell walls. The results suggest that in different species the cation-binding properties of the cell wall polysaccharides may have varying importance in cellular ionic regulation.
| Titolo: | CELL-WALL ULTRASTRUCTURE AND CATION LOCALIZATION IN SOME BENTHIC MARINE-ALGAE |
| Autori: | |
| Data di pubblicazione: | 1990 |
| Rivista: | |
| Abstract: | Cell wall ultrastructure was compared in mature thalli of Cystoseira barbata (Goodenough et Woodward) J. Agardh (Phaeophyta), Gracilaria verrucosa (Hudson) Papenfuss (Rhodophyta) and Enteromorpha intestinalis (Linnaeus) Link (Chlorophyta), providing a structural basis for the study of cation localization (through the K antimonate precipitation technique). These species showed different amounts of antimonate precipitates and different patterns of cation localization in the apoplast. SEM X-ray microanalyses allowed the localization of sulphated polysaccharides through the Speak and identification of the cations present in the cell walls. The results suggest that in different species the cation-binding properties of the cell wall polysaccharides may have varying importance in cellular ionic regulation. |
| Handle: | http://hdl.handle.net/11577/154383 |
| Appare nelle tipologie: | 01.01 - Articolo in rivista |
File in questo prodotto:
Copyright © 2020