Publication
Title
Dehydroascorbate and glutathione regulate the cellular development of **Nicotiana tabacum** L. SR-1 protoplasts
Author
Abstract
A Nicotiana tabacum L. SR-1 leaf protoplast system was used to study the effects of dehydroascorbate and glutathione on cellular development. We found that dehydroascorbate is readily taken up by protoplasts and internally reduced to ascorbate. Concomitantly, cell division was inhibited and cell expansion stimulated. In this respect, dehydroascorbate counteracted auxin-mediated leaf protoplast development. In contrast to the effects of dehydroascorbate, glutathione-induced cell dedifferentiation, and this effect is similar to that mediated by high auxin concentrations. We conclude that dehydroascorbate and glutathione affect the auxin-mediated regulation of cellular development. Therefore, the biological role of these compounds extends beyond stress tolerance and defense.
Language
English
Source (journal)
In vitro : cellular and developmental biology : plant / Tissue Culture Association [Rockville, Md] - Gaithersburg, Md, 1991, currens
Publication
Gaithersburg, Md : 2010
ISSN
1054-5476 [print]
1475-2689 [online]
Volume/pages
46:3(2010), p. 289-297
ISI
000278179600009
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 22.06.2010
Last edited 18.09.2017
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