Artículo

Pereira-Netto, A.B.; Cruz-Silva, C.T.A.; Schaefer, S.; Ramírez, J.A.; Galagovsky, L.R. "Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock" (2006) Trees - Structure and Function. 20(3):286-291
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Abstract:

Brassinosteroids (BRs) comprise a specific class of low-abundance plant steroids now recognized as a new class of phytohormones. In this paper, we demonstrate that a fluoro derivative of 28-homocastasterone (5F-HCTS) stimulates branch elongation in in vitro-grown shoots of Malus prunifolia, the marubakaido apple rootstock. In addition to that, we show that this BR-stimulated branch elongation is paralleled by an increase in ethylene release. However, either the presence of 1-amino-cyclopropane-1-carboxylic acid (ACC), the immediate precursor of ethylene in higher plants, in the culture medium or an ethylene-enriched atmosphere resulted in inhibition of branch elongation, indicating that the stimulation of branch elongation observed for 5F-HCTS-treated shoots in this study was not, at least directly, related to the BR-induced enhancement in ethylene release rate. Besides its positive effect on the marubakaido shoot growth, i.e. branch elongation, the 5F-HCTS-driven enhancement of branch elongation found in this study is potentially useful to improve micropropagation techniques for other plant species as well, especially woody species, in which branch elongation is typically a constraint for efficient micropropagation. © Springer-Verlag 2005.

Registro:

Documento: Artículo
Título:Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock
Autor:Pereira-Netto, A.B.; Cruz-Silva, C.T.A.; Schaefer, S.; Ramírez, J.A.; Galagovsky, L.R.
Filiación:Department of Botany-SCB, Centro Politecnico-UFPR, C.P. 19031, Curitiba, PR 81531-970, Brazil
Department of Organic Chemistry, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:28-Homocastasterone; 5F-HCTS; Ethylene; Malus prunifolia; Carboxylic acids; Ethylene; Hormones; Wood; Brassinosteroids; Homocastasterone; Malus prunifolia; Micropropagation techniques; Rootstock; Plants (botany); Branches; Brass; Carboxylic Acids; Elongation; Malus; Plants; Wood; Embryophyta; Malus prunifolia; Malus x domestica
Año:2006
Volumen:20
Número:3
Página de inicio:286
Página de fin:291
DOI: http://dx.doi.org/10.1007/s00468-005-0041-3
Título revista:Trees - Structure and Function
Título revista abreviado:Trees Struct. Funct.
ISSN:09311890
CODEN:TRESE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09311890_v20_n3_p286_PereiraNetto

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Citas:

---------- APA ----------
Pereira-Netto, A.B., Cruz-Silva, C.T.A., Schaefer, S., Ramírez, J.A. & Galagovsky, L.R. (2006) . Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock. Trees - Structure and Function, 20(3), 286-291.
http://dx.doi.org/10.1007/s00468-005-0041-3
---------- CHICAGO ----------
Pereira-Netto, A.B., Cruz-Silva, C.T.A., Schaefer, S., Ramírez, J.A., Galagovsky, L.R. "Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock" . Trees - Structure and Function 20, no. 3 (2006) : 286-291.
http://dx.doi.org/10.1007/s00468-005-0041-3
---------- MLA ----------
Pereira-Netto, A.B., Cruz-Silva, C.T.A., Schaefer, S., Ramírez, J.A., Galagovsky, L.R. "Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock" . Trees - Structure and Function, vol. 20, no. 3, 2006, pp. 286-291.
http://dx.doi.org/10.1007/s00468-005-0041-3
---------- VANCOUVER ----------
Pereira-Netto, A.B., Cruz-Silva, C.T.A., Schaefer, S., Ramírez, J.A., Galagovsky, L.R. Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock. Trees Struct. Funct. 2006;20(3):286-291.
http://dx.doi.org/10.1007/s00468-005-0041-3