Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative

28-Homocastasterone (28-HCTS), a brassinosteroid, was used to treat in vitro-grown shoots of a hybrid between Eucalyptus grandis and E. urophylla. Treated shoots showed enhanced elongation and formation of new main shoots (the shoots originating directly from the initial explant) at low doses. Coinc...

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Detalles Bibliográficos
Publicado: 2006
Materias:
28-HCTS
28-homocastasterone
5F-HCTS
Apical dominance
Shoot elongation
Biotechnology
Growth kinetics
Hormones
Forestry
Growth
Trees
Eucalyptus
Eucalyptus grandis
Eucalyptus urophylla
Magnoliophyta
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01676857_v86_n3_p329_PereiraNetto
http://hdl.handle.net/20.500.12110/paper_01676857_v86_n3_p329_PereiraNetto
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01676857_v86_n3_p329_PereiraNetto
record_format dspace
spelling paper:paper_01676857_v86_n3_p329_PereiraNetto2023-06-08T15:16:46Z Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative 28-HCTS 28-homocastasterone 5F-HCTS Apical dominance Shoot elongation Biotechnology Growth kinetics Hormones 28-HCTS 28-homocastasterone 5F-HCTS Apical dominance Shoot elongation Forestry Biotechnology Growth Hormones Trees Eucalyptus Eucalyptus grandis Eucalyptus urophylla Magnoliophyta 28-Homocastasterone (28-HCTS), a brassinosteroid, was used to treat in vitro-grown shoots of a hybrid between Eucalyptus grandis and E. urophylla. Treated shoots showed enhanced elongation and formation of new main shoots (the shoots originating directly from the initial explant) at low doses. Coincidently, there was reduced elongation and formation of primary lateral shoots (shoots originating from the main shoot). However, a 5α-monofluoro derivative of 28-HCTS (5F-HCTS) was unable to either stimulate elongation or formation of new main shoots, although it did stimulate elongation of primary lateral shoots. In conclusion, it is quite apparent that exogenously supplied brassinosteroids are able to change shooting patterns in Eucalyptus. These findings have practical biotechnological applications, for example on the improvement of micropropagation techniques for clonal propagation of woody angiosperms. © Springer Science+Business Media B.V. 2006. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01676857_v86_n3_p329_PereiraNetto http://hdl.handle.net/20.500.12110/paper_01676857_v86_n3_p329_PereiraNetto
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 28-HCTS
28-homocastasterone
5F-HCTS
Apical dominance
Shoot elongation
Biotechnology
Growth kinetics
Hormones
28-HCTS
28-homocastasterone
5F-HCTS
Apical dominance
Shoot elongation
Forestry
Biotechnology
Growth
Hormones
Trees
Eucalyptus
Eucalyptus grandis
Eucalyptus urophylla
Magnoliophyta
spellingShingle 28-HCTS
28-homocastasterone
5F-HCTS
Apical dominance
Shoot elongation
Biotechnology
Growth kinetics
Hormones
28-HCTS
28-homocastasterone
5F-HCTS
Apical dominance
Shoot elongation
Forestry
Biotechnology
Growth
Hormones
Trees
Eucalyptus
Eucalyptus grandis
Eucalyptus urophylla
Magnoliophyta
Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative
topic_facet 28-HCTS
28-homocastasterone
5F-HCTS
Apical dominance
Shoot elongation
Biotechnology
Growth kinetics
Hormones
28-HCTS
28-homocastasterone
5F-HCTS
Apical dominance
Shoot elongation
Forestry
Biotechnology
Growth
Hormones
Trees
Eucalyptus
Eucalyptus grandis
Eucalyptus urophylla
Magnoliophyta
description 28-Homocastasterone (28-HCTS), a brassinosteroid, was used to treat in vitro-grown shoots of a hybrid between Eucalyptus grandis and E. urophylla. Treated shoots showed enhanced elongation and formation of new main shoots (the shoots originating directly from the initial explant) at low doses. Coincidently, there was reduced elongation and formation of primary lateral shoots (shoots originating from the main shoot). However, a 5α-monofluoro derivative of 28-HCTS (5F-HCTS) was unable to either stimulate elongation or formation of new main shoots, although it did stimulate elongation of primary lateral shoots. In conclusion, it is quite apparent that exogenously supplied brassinosteroids are able to change shooting patterns in Eucalyptus. These findings have practical biotechnological applications, for example on the improvement of micropropagation techniques for clonal propagation of woody angiosperms. © Springer Science+Business Media B.V. 2006.
title Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative
title_short Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative
title_full Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative
title_fullStr Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative
title_full_unstemmed Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative
title_sort shooting control in eucalyptus grandis x e. urophylla hybrid: comparative effects of 28-homocastasterone and a 5α-monofluoro derivative
publishDate 2006
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01676857_v86_n3_p329_PereiraNetto
http://hdl.handle.net/20.500.12110/paper_01676857_v86_n3_p329_PereiraNetto
_version_ 1768545369816301568

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