Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock

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 maru...

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Autor principal: Pereira-Netto, A.B
Otros Autores: Cruz-Silva, C.T.A, Schaefer, S., Ramírez, Javier Alberto, Galagovsky, L.R
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2006
Acceso en línea:Registro en Scopus
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100 1 |a Pereira-Netto, A.B. 
245 1 0 |a Brassinosteroid-stimulated branch elongation in the marubakaido apple rootstock 
260 |c 2006 
270 1 0 |m Pereira-Netto, A.B.; Department of Botany-SCB, Centro Politecnico-UFPR, C.P. 19031, Curitiba, PR 81531-970, Brazil; email: apereira@ufpr.br 
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504 |a Bishop, G.J., Yokota, T., Plants steroid hormones, brassinosteroids: Current highlights of molecular aspects on their synthesis/metabolism, transport, perception and response (2001) Plant Cell Physiol, 42, pp. 114-120 
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504 |a Clouse, S.D., Molecular genetic studies confirm the role of brassinosteroids in plant growth and development (1996) Plant J, 10, pp. 1-8 
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504 |a Flores, R., Lessa, A.O., Peters, J.A., Fortes, G.R.L., Efeito da sacarose e do benomyl na multiplicação in vitro da macieira (1999) Pesqui Agropecu Bras, 34, pp. 2363-2368 
504 |a Fujioka, S., Natural occurrence of brassinosteroids in the plant kingdom (1999) Brassinosteroids: Steroidal Plant Hormones, pp. 21-45. , Sakurai A, Yokota T, Clouse SD (eds) Springer-Verlag, Tokyo 
504 |a Fujioka, S., Sakurai, A., Biosynthesis and metabolism of brassinosteroids (1997) Physiol Plant, 100, pp. 710-715 
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504 |a Koka, C.V., Cerny, R.E., Gardner, R.G., Noguchi, T., Fujioka, S., Takatsuto, S., Yoshida, S., Clouse, S.D., A putative role for the tomato genes DUMPY and CURL-3 in brassinosteroid biosynthesis and response (2000) Plant Physiol, 122, pp. 85-98 
504 |a Lim, S.H., Chang, S.C., Lee, J.S., Kim, S.K., Kim, S.Y., Brassinosteroids affect ethylene production in the primary roots of maize (Zea mays L.) (2002) J Plant Biol, 45, pp. 148-153 
504 |a Losso, M., Mondin, V.P., (1991) Sistema de Produção para a Cultura Da Macieira (Sistemas de Produção No 19), , DID/EMPASC, Florianópolis 
504 |a Mandava, N.B., Plant growth-promoting brassinosteroids (1988) Annu Rev Plant Physiol Plant Mol Biol, 39, pp. 23-52 
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504 |a Nunes, J.C.O., Barpp, A., Silva, F.C., Pedrotti, E.L., Micropropagation of rootstocks "marubakaido" (Malus prunifolia) through meristem culture (1999) Rev Bras Frutic, 21, pp. 191-195 
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504 |a Ramirez, J.A., Gros, E.G., Galagovsky, L.R., Effects on bioactivity due to C-5 heteroatom substituents on synthetic 28-homobrassinosteroid analogs (2000) Tetrahedron, 56, pp. 6171-6180 
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504 |a Schaefer, S., Medeiro, S.A., Ramirez, J.A., Galagovsky, L.R., Pereira-Netto, A.B., Brassinosteroid-driven enhancement of the in vitro multiplication rate for the marubakaido apple rootstock [Malus prunifolia (Willd.) Borkh] (2002) Plant Cell Rep, 20, pp. 1093-1097 
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506 |2 openaire  |e Política editorial 
520 3 |a 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.  |l eng 
593 |a Department of Botany-SCB, Centro Politecnico-UFPR, C.P. 19031, Curitiba, PR 81531-970, Brazil 
593 |a Department of Organic Chemistry, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina 
690 1 0 |a 28-HOMOCASTASTERONE 
690 1 0 |a 5F-HCTS 
690 1 0 |a ETHYLENE 
690 1 0 |a MALUS PRUNIFOLIA 
690 1 0 |a CARBOXYLIC ACIDS 
690 1 0 |a ETHYLENE 
690 1 0 |a HORMONES 
690 1 0 |a WOOD 
690 1 0 |a BRASSINOSTEROIDS 
690 1 0 |a HOMOCASTASTERONE 
690 1 0 |a MALUS PRUNIFOLIA 
690 1 0 |a MICROPROPAGATION TECHNIQUES 
690 1 0 |a ROOTSTOCK 
690 1 0 |a PLANTS (BOTANY) 
690 1 0 |a BRANCHES 
690 1 0 |a BRASS 
690 1 0 |a CARBOXYLIC ACIDS 
690 1 0 |a ELONGATION 
690 1 0 |a MALUS 
690 1 0 |a PLANTS 
690 1 0 |a WOOD 
690 1 0 |a EMBRYOPHYTA 
690 1 0 |a MALUS PRUNIFOLIA 
690 1 0 |a MALUS X DOMESTICA 
700 1 |a Cruz-Silva, C.T.A. 
700 1 |a Schaefer, S. 
700 1 |a Ramírez, Javier Alberto 
700 1 |a Galagovsky, L.R. 
773 0 |d 2006  |g v. 20  |h pp. 286-291  |k n. 3  |p Trees Struct. Funct.  |x 09311890  |t Trees - Structure and Function 
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