Vegetative Propagation of Eucalyptus

Durand-Cresswell, R.; Boulay, M.; Franclet, A.

doi:10.1007/978-94-017-3538-4_6

Cited by 51 publications

(19 citation statements)

References 30 publications

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“…The abscising leaves of Corymbia cuttings appear green and healthy with high chlorophyll fluorescence (F V /F M ), indicating that auxin does not cause photosystem down-regulation or damage (Trueman and Richardson, 2008). Leaf abscission has not been widely reported during Eucalyptus propagation, although there are early reports of senescence and abscission associated with callus formation on leaves and petioles in vitro (Durand-Cresswell et al, 1982;Le Roux and van Staden, 1991). In the current study, leaf abscission occurred on many untreated cuttings of both C. torelliana × C. citriodora (Fig.…”

Section: Resultsmentioning

confidence: 98%

Effect of aminoethoxyvinylglycine and 1-methylcyclopropene on leaf abscission and root formation in Corymbia and Eucalyptus cuttings

Trueman

Adkins²

2013

Scientia Horticulturae

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Section: Resultsmentioning

confidence: 98%

Effect of aminoethoxyvinylglycine and 1-methylcyclopropene on leaf abscission and root formation in Corymbia and Eucalyptus cuttings

Trueman

Adkins²

2013

Scientia Horticulturae

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“…Durand-Cresswell [40] cited by Durand-Cresswell et al [42] reported two types of exudates in E. grands organ cultures. One, which appeared within one hour of excision of the explants (wounding effect), was aggravated by constituents of the culture medium such as high concentrations of sucrose, serine, chlorogenic acid or cytokinins [40], high boron concentrations [55] and light [42]. Creasy [20] reported that the activity of enzymes catalyzing the oxidation of phenolics is increased by light.…”

Section: Establishing Culturesmentioning

confidence: 99%

Micropropagation and tissue culture of Eucalyptus--a review

Roux¹,

Staden²

1991

Tree Physiology

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Micropropagation has the potential to provide very high multiplication rates of selected tree genotypes, with resulting short-term silvicultural gains. Aseptic cultures have been established from seeds, seedlings, shoots, flowers and lignotubers. Callus cultures have been established from a wide range of tissue sources for at least 30 species of Eucalyptus. Plant regeneration from callus was successful for 12 of these species. Micropropagation through axillary proliferation, or adventitious shoot proliferation on nodal explants, or both, has been successful. An agar-based medium of Murashige and Skoog with a low auxin/cytokinin ratio is most commonly used for shoot multiplication. Vitrification and shoot senescence remain problems. Gibberellic acid was added in some media to stimulate shoot elongation. Various media are used for in vitro root initiation. Suspension and protoplast cultures have been achieved and plants have been regenerated from protoplasts. In vitro techniques are presently being applied to Eucalyptus to achieve genetic transformations.

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“…Esto se corrobora en la combinación 1-0,1 mg L -1 (BAP-ANA) al alcanzar valores más altos de caulogénesis. Según Durand-Cresswell et al (1982) y Ahuja (1993), el desencadenamiento de la caulogénesis in vitro resulta de la interacción entre las citoquininas y auxinas, pero esto siempre depende de la especie, el tipo de explanto y su edad fisiológica. Dicho proceso exige una relación citoquinina/auxina elevada; de esta manera, el aumento en la concentración de auxina puede necesitar igualmente el aumento de concentración en citoquinina, por lo cual la caulogénesis dependería de una relación óptima entre las concentraciones totales de citoquininas y de auxinas exógenas y endógenas (Margara 1988, Pierik 1990).…”

Section: Discussionunclassified

Inducción de caulogénesis indirecta en Eucalyptus globulus

Larson¹,

Gómez²,

Sánchez‐Olate³

et al. 2006

Bosque (Valdivia)

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SUMMARYCaulogenic induction was studied using mature seeds as initial explants. Four concentrations of BAP (0, 3, 5 and 7 mg L -1 ) in the mediums MS, B5 and SP were evaluated for the callus formation. The callus formed in the previous stage was used for the caulogenesis, evaluating the effect of two concentrations of ANA (0.1 and 0.5 mg L -1 ), maintaining constant the BAP (1.0 mg L -1 ) and the nutritious media from which they came. In the callus formation, the best results were obtained with 7 mg L -1 of BAP (73%) when using the medium B5; differing significantly from MS. For the caulogenesis, the medium SP produced the highest values in formation of shoots (78%) differing significantly from the media B5 and MS. BAP-ANA's combination (1.0-0.1 mg L -1 ) was more appropriate for the formation of shoots (62%), although without statistically differing from the other combination. In conclusion, the callus formation is directly related with the concentration of BAP and the nutritious media used. Also, the concentration of BAP from which the callus and the combinations of BAP and ANA come, for the caulogenesis, do not influence significantly in the formation of adventitious shoots, contrary to the used nutritious media.Key words: Eucalyptus globulus, caulogenesis, callugenesis, auxins, citokinins. RESUMENSe estudió la inducción caulogénica utilizando semillas maduras como explantos iniciales. Para la callogénesis se evaluaron cuatro concentraciones de BAP (0, 3, 5 y 7 mg L -1 ) en los medios MS, B5 y SP. Para la caulogénesis se utilizaron los callos formados en la etapa anterior, evaluando el efecto de dos concentraciones de ANA (0,1 y 0,5 mg L -1 ), manteniendo constante el BAP (1,0 mg L -1 ) y el medio nutritivo del cual provenían. En la callogénesis los mejores resultados se obtuvieron con 7 mg L -1 de BAP (73%) al utilizar el medio B5, difiriendo significativamente de MS. Para la caulogénesis, con el medio SP se obtuvieron los valores más altos de formación de brotes (78%) difiriendo significativamente de los medios B5 y MS. La combinación de BAP-ANA (1,0-0,1 mg L -1 ) resultó más apropiada para la formación de brotes (62%), aunque sin diferir estadísticamente de la otra combinación. Se concluye que la callogénesis está directamente relacionada con la concentración de BAP y el medio nutritivo utilizado. Además, la concentración de BAP del cual provienen los callos y las combinaciones de BAP y ANA para la caulogénesis, no influyen significativamente en la formación de brotes adventicios, a diferencia del medio nutritivo utilizado.

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Vegetative Propagation of Eucalyptus

Cited by 51 publications

References 30 publications

Effect of aminoethoxyvinylglycine and 1-methylcyclopropene on leaf abscission and root formation in Corymbia and Eucalyptus cuttings

Effect of aminoethoxyvinylglycine and 1-methylcyclopropene on leaf abscission and root formation in Corymbia and Eucalyptus cuttings

Micropropagation and tissue culture of Eucalyptus--a review

Inducción de caulogénesis indirecta en Eucalyptus globulus

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