Plant donor tissue and isolation procedure effect on early formation of embryoids from protoplasts of Helianthus annuus L.
Identifieur interne : 000276 ( France/Analysis ); précédent : 000275; suivant : 000277Plant donor tissue and isolation procedure effect on early formation of embryoids from protoplasts of Helianthus annuus L.
Auteurs : M. Dupuis [France] ; M. Péan [France] ; P. Chagvardieff [France]Source :
- Plant Cell, Tissue and Organ Culture [ 0167-6857 ] ; 1990-09-01.
Abstract
Abstract: The effects of factors influencing sunflower protoplast isolation yield, plating efficiency (PE) and the early differentiation into embryoids (embryogenic capacity, EC) have been studied. Only hypocotyl-derived protoplasts divided. The variations of PE and EC in the various treatments did not seem to be linked to the protoplast yields. From statistical analysis of the data, we concluded that, the sunflower genotype, the age and height of seedlings, the part of hypocotyl used, the incubation time (from 6 to 16 hours) in enzymes of explants or of protoplasts alone, influenced PE but large variations were detected for EC. A comparison of the factors effecting EC suggested an origin, inside the hypocotyl, of cells able to give rise, after induction, to embryogenic protoplasts.
Url:
DOI: 10.1007/BF00033634
Affiliations:
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Only hypocotyl-derived protoplasts divided. The variations of PE and EC in the various treatments did not seem to be linked to the protoplast yields. From statistical analysis of the data, we concluded that, the sunflower genotype, the age and height of seedlings, the part of hypocotyl used, the incubation time (from 6 to 16 hours) in enzymes of explants or of protoplasts alone, influenced PE but large variations were detected for EC. A comparison of the factors effecting EC suggested an origin, inside the hypocotyl, of cells able to give rise, after induction, to embryogenic protoplasts.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Provence-Alpes-Côte d'Azur</li></region><settlement><li>Saint-Paul-Lez-Durance</li><li>Saint-Paul-lez-Durance</li></settlement></list><tree><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Dupuis, M" sort="Dupuis, M" uniqKey="Dupuis M" first="M." last="Dupuis">M. 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