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Title

Somatic embryogenesis and plant regeneration from barley cultivars grown in Spain

AuthorsCastillo Alonso, Ana María ; Egaña Querejeta, Beatriz ; Sanz Madoz, José Miguel ; Cistué Sola, Luis
KeywordsBarley
Somatic embryogenesis
Plant regeneration
Issue DateAug-1998
PublisherSpringer
CitationPlant Cell Reports 17 (11): 902-906 (1998)
AbstractThirty-two barley cultivars grown in Spain, 18 of the two-row type and 14 of the six-row type, were screened for plant regeneration from cultured immature embryos. Although there was much variation in regeneration capacity among the cultivars, plants were obtained from all cultivars except Almunia. No statistical differences were found in the percentage of regeneration between two- and six-row types. The influence of the auxins 2,4-dichlorophenoxyacetic acid, dicamba, and picloram on the induction and maintenance of embryogenesis and regeneration capacity after 3–4 months in culture, were evaluated for cultivars Cobra, Hop and Reinette. Hop had the highest rates of maintenance of embryogenic capacity and plant regeneration. The medium containing dicamba gave the best embryogenic callus induction, maintenance and regeneration. Five regeneration media, differing in growth regulators and micronutrient composition, as well as partial desiccation of the calli before regeneration, were tested. The regeneration medium containing 10 μm copper sulfate gave the best results. Regeneration frequencies after 3–4 months in culture of cultivar Hop were raised from 59.5 to 93.7% in this medium. Silver nitrate and partial desiccation of the calli also enhanced plant regeneration, but the medium containing 10 μm of silver nitrate reduced root formation.
Description5 Pags.- 2 Tabls.- 1 Fig.
Publisher version (URL)http://dx.doi.org/10.1007/s002990050506
URIhttp://hdl.handle.net/10261/122101
DOI10.1007/s002990050506
ISSN0721-7714
E-ISSN1432-203X
Appears in Collections:(EEAD) Artículos
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