Serveur d'exploration sur l'oranger

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Plant regeneration of sweet orange (Citrus sinensis) from thin sections of mature stem segments

Identifieur interne : 002B33 ( Main/Exploration ); précédent : 002B32; suivant : 002B34

Plant regeneration of sweet orange (Citrus sinensis) from thin sections of mature stem segments

Auteurs : A. K. Kobayashi [Brésil] ; J. C. Bespalhok [Brésil] ; L. F. P. Pereira [Brésil] ; L. G. E. Vieira [Brésil]

Source :

RBID : Pascal:03-0479314

Abstract

An efficient system for in vitro plant regeneration from thin transversal stem sections explants (1-2 mm) using mature tissues of sweet orange cv. Pera was developed. Explants were cultured in different media to evaluate the frequency of regeneration and size of buds. A high percentage of explants (54% with 3.1 buds/explant) producing large buds (1-4 mm) was observed when the explants were cultivated for 2 weeks on Murashige and Skoog medium and then transferred to Woody Plant medium (WPM). Both media were supplemented with 1.8 μM 6-benzylaminopurine and 0.7 μM gibberellic acid. Adventitious buds were regenerated into whole plants by in vitro shoot-tip grafting. Regenerated plants started to flower after 12 months in the greenhouse, confirming their mature nature.


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Le document en format XML

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<div type="abstract" xml:lang="en">An efficient system for in vitro plant regeneration from thin transversal stem sections explants (1-2 mm) using mature tissues of sweet orange cv. Pera was developed. Explants were cultured in different media to evaluate the frequency of regeneration and size of buds. A high percentage of explants (54% with 3.1 buds/explant) producing large buds (1-4 mm) was observed when the explants were cultivated for 2 weeks on Murashige and Skoog medium and then transferred to Woody Plant medium (WPM). Both media were supplemented with 1.8 μM 6-benzylaminopurine and 0.7 μM gibberellic acid. Adventitious buds were regenerated into whole plants by in vitro shoot-tip grafting. Regenerated plants started to flower after 12 months in the greenhouse, confirming their mature nature.</div>
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