EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Anatomy of adventitious root formation in microcuttings of Malus domestica Borkh. 'Gala'



Anatomy of adventitious root formation in microcuttings of Malus domestica Borkh. 'Gala'



Journal of the American Society for Horticultural Science 118(5): 680-688



Anatomical events of adventitious root formation in response to root induction medium, observing changes during induction and post-induction stages, were made with microcuttings of 'Gala' apples. Shoot explants on root induction medium containing water, 1.5 micromolars IBA, 44 mM sucrose, or 1.5 micromolars IBA + 44 mM sucrose after 4 days of treatment averaged 0, 0.2, 2.2, and 11.9 meristemoids per microcutting, respectively. Meristemoids formed in response to sucrose were confined to leaf gaps and traces. Time-course analysis of root induction with 1.5 micromolars IBA + 44 mM sucrose over 4 days revealed that some phloem parenchyma cells became densely cytoplasmic, having nuclei with prominent nucleoli within 1 day; meristematic activity in the phloem was widespread by 2 days; continued division of phloem parenchyma cells advanced into the cortex by 3 days; and that identifiable root primordia were present by 4 days. Cell division of pith, vascular cambium, and cortex did not lead to primordia formation. Meristematic activity was confined to the basal 1 mm of microcuttings. Time-course analysis of post-induction treatment revealed differentiation of distinct cell layers at the distal end of primordia by 1 day; primordia with a conical shape and several cell layers at the distal end by 2 to 3 days; roots with organized tissue systems emerging from the stem by 4 days; and numerous emerged roots by 6 days. Root initiation was detectable within 24 hours and completed by day 4 of the root induction treatment and involved only phloem parenchyma cells.

(PDF emailed within 1 workday: $29.90)

Accession: 002301305

Download citation: RISBibTeXText



Related references

Anatomical observations of adventitious root formation in malus domestica microcuttings. Hortscience 26(6): 776, 1991

Study of the adventitious root histogenesis on Malus domestica Borkh. Saussurea 0(29): 77-96, 1998

Comparison of fruit quality, maturity, and storability of 'Gala' and red-coloured 'Gala' mutants (Malus domestica Borkh). Folia Horticulturae 13(2): 83-87, 2001

Assessment of tissue culture-derived 'Gala' and 'Royal Gala' apples (Malus x domestica Borkh.) for somaclonal variation. Euphytica 103(2): 251-257, 1998

Factors affecting adventitious root formation in microcuttings of Malus. Agronomie (Paris) 12(10): 747-755, 1992

Pomological description: apple (Malus x domestica Borkh.). Gala BrookfieldReg. Baigent (c.o.v.). Informatore Agrario 56(38): 47, 2000

Chemical thinning in apple (Malus domestica Borkh) cultivars Gala and Fuji. Anais do VII Congresso Brasileiro de Fruticultura (Volume 3): 891-902, 1984

Effects of promalin (6BA+GA4+7) on growth and development of the fruits of apple (Malus domestica, Borkh.) cv. Gala. 2006

Distribution and metabolism of ascorbic acid in apple fruits (Malus domestica Borkh cv. Gala). Plant Science 174(6): 0-612, 2008

Evaluation of different over-grafting techniques to replace 'Gala' for 'Princesa' apple trees (Malus domestica Borkh.). Acta Scientiarum Agronomy 28(4): 493-498, 2006

New strategies for the chemical thinning of apple (Malus domestica Borkh.) cultivars Queen Cox and Royal Gala. Journal of Horticultural Science and Biotechnology 74(3): 337-346, 1999

Quality of 'Gala' apples (Malus domestica Borkh.) subjected to different cooling rates and ethylene concentrations. Revista Brasileira de Fruticultura 22(special): 1-5, 2000

Influence of rootstock on drought response in young 'Gale Gala' apple (Malus domestica Borkh.) trees. Journal of the Science of Food and Agriculture 92(12): 2421-2427, 2012

Effect of carbaryl on russeting of apple (Malus domestica Borkh.), cultivars 'Gala', 'Fuji' and 'Golden Delicious'. Revista Brasileira de Fruticultura 23(3): 580-583, 2001

Chemical thinning of apple (Malus domestica L. Borkh) cultivars Gala and Red Top Spur in Meknes area of Morocco. Biotechnologie, Agronomie, Societe et Environnement 11(1): 59-67, 2007