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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Autores principales:	Pereira-Netto, A.B., Carvalho-Oliveira, M.M.C., Ramírez, J.A., Galagovsky, L.R.
Formato:	JOUR
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:	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

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spelling	todo:paper_01676857_v86_n3_p329_PereiraNetto2023-10-03T15:05:08Z Shooting control in Eucalyptus Grandis x E. urophylla hybrid: Comparative effects of 28-homocastasterone and a 5α-monofluoro derivative Pereira-Netto, A.B. Carvalho-Oliveira, M.M.C. Ramírez, J.A. Galagovsky, L.R. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Pereira-Netto, A.B. Carvalho-Oliveira, M.M.C. Ramírez, J.A. Galagovsky, L.R. 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.
format	JOUR
author	Pereira-Netto, A.B. Carvalho-Oliveira, M.M.C. Ramírez, J.A. Galagovsky, L.R.
author_facet	Pereira-Netto, A.B. Carvalho-Oliveira, M.M.C. Ramírez, J.A. Galagovsky, L.R.
author_sort	Pereira-Netto, A.B.
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
url	http://hdl.handle.net/20.500.12110/paper_01676857_v86_n3_p329_PereiraNetto
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_version_	1807324005469782016

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

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