2000
DOI: 10.1590/s0100-204x2000001000013
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Protocolo para a embriogênese somática do mamoeiro

Abstract: RESUMO -O presente trabalho teve por objetivo estabelecer um protocolo de embriogênese somática para o mamoeiro (Carica papaya L.) cv. Baixinho de Santa Amália, grupo Solo. Foram utilizados quatro tipos de explantes e duas condições de cultivo, sendo as fases de indução de calos, indução e maturação de embriões somáticos, alongamento e enraizamento das plântulas avaliadas em diferentes meios de cultura. A combinação explante hipocótilo com folhas cotiledonares e meio de cultura ½MS + 10 mg L -1 de 2,4-D, sob c… Show more

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Cited by 2 publications
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“…Also, the use of 2,4-D in the induction of somatic embryogenesis may have a direct or indirect effect in the occurrence of somaclonal variation (Gesteira et al 2002;Rakoczy-Trojanowska 2002;Pontaroli and Camadro 2005), due to its mutagenic potential (Pontaroli and Camadro 2005). Likewise the present work, this growth regulator has been widely used for papaya tissue culture (Fitch and Manshardt 1990;Chen and Chen 1992;Fitch 1993;Castillo et al 1998a, b;Almeida et al 2000Almeida et al , 2001Koehler 2004). In spite of that, so far no cytometric-based works have been reported to assess DNA ploidy level in the recovered papaya plantlets.…”
Section: Resultsmentioning
confidence: 68%
See 1 more Smart Citation
“…Also, the use of 2,4-D in the induction of somatic embryogenesis may have a direct or indirect effect in the occurrence of somaclonal variation (Gesteira et al 2002;Rakoczy-Trojanowska 2002;Pontaroli and Camadro 2005), due to its mutagenic potential (Pontaroli and Camadro 2005). Likewise the present work, this growth regulator has been widely used for papaya tissue culture (Fitch and Manshardt 1990;Chen and Chen 1992;Fitch 1993;Castillo et al 1998a, b;Almeida et al 2000Almeida et al , 2001Koehler 2004). In spite of that, so far no cytometric-based works have been reported to assess DNA ploidy level in the recovered papaya plantlets.…”
Section: Resultsmentioning
confidence: 68%
“…Ten immature zygotic embryos (Fig. 1a) were placed in 60 9 15 mm Petri dishes (J. Prolab 1 , Brazil) with embryogenic induction medium containing halfstrength MS basal salts supplemented with MS vitamins (Murashige and Skoog 1962), 9.05 lM 2,4-D, 0.55 mM myo-inositol, 2.75 mM L-glutamine, 6% (w/v) sucrose and 0.28% (w/v) Phytagel (Sigma 1 , USA), as recommended by Castillo et al (1998a, b), Almeida et al (2000Almeida et al ( , 2001 and Koehler (2004). The pH of this medium was adjusted to 5.7 prior autoclaving.…”
Section: Methodsmentioning
confidence: 99%