Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Planta Daninha (3) Autor TAHA,R.M. (3) ELIAS,H. (2) MOHAMED,N. (2) RAZAK,U.N.A.A. (2) HAMID,H.A.A. (1) MAHMAD,N. (1) SALEH,A. (1) Mais... Palavra-chave Flowering response (2) Gibberellic acid (2) Agronomic parameters (1) Cellular behavior and acclimatization (1) Glutathione (1) Histology (1) In vitro regeneration (1) Mitotic index (1) Oryza sativa L. cv. MRQ 74 (1) Plant growth hormones (1) Ploidy level (1) Regeneration (1) Survival rate (1) Ultrastructural (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2019 (2) 2018 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Detection of Somaclonal Variation in Micropropagated and Acclimatized Plantlets of Oryza sativa MRQ 74 from Stem Explants Planta Daninha SALEH,A.; TAHA,R.M.; MAHMAD,N.; ELIAS,H.; HAMID,H.A.A.. ABSTRACT: In plant tissue culture system, the excessive supply of plant growth hormones may inhibit further growth and development of the regenerants and sometimes it may induce somaclonal variation. In this study, the optimum concentration of plant growth hormones for in vitro regeneration of Oryza sativa L. cv. MRQ 74 was identified and subsequently the occurrence of somaclonal variation of regenerated plantlets was determined through cytological analysis of in vivo and in vitro grown plantlets. MS media supplemented with 0.1 mg L-1 BAP in combination with 0.1 mg L-1 NAA was found to be the optimum concentration for shoots and roots induction of Oryza sativa L. cv. MRQ 74. Plantlets derived from MS media supplemented with 0.5 mg L-1 2,4-D showed higher... Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant growth hormones; Oryza sativa L. cv. MRQ 74; Survival rate; Agronomic parameters; Mitotic index; Ploidy level. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100212 Micropropagation and Cellular Behaviour Changes During in vitro Flowering of Impatiens balsamina Planta Daninha MOHAMED,N.; TAHA,R.M.; RAZAK,U.N.A.A.. ABSTRACT: In this study, the micropropagation of Impatiens balsamina was established from stem and shoot explants. The effects of GA3 and glutathione on the morphogenesis of this species were also investigated, in order to induce in vitro flowering. It was found that the optimum in vitro plant regeneration was achieved on MS medium supplemented with 1.0 mg L-1 GA3 and in vitro flowering was also obtained from the same medium after 4 weeks of culture. To understand cellular behavior during in vitro flowering, Mitotic Index (MI), chromosome counts, measurement of mean cell and nuclear areas, DNA measurements and ploidy levels were analyzed from in vivo plants, in vitro grown plants and plantlets that flowered in vitro. The chromosome count was the same for... Tipo: Info:eu-repo/semantics/article Palavras-chave: Regeneration; Gibberellic acid; Glutathione; Flowering response; Cellular behavior and acclimatization. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100236 The Role of Plant Growth Regulators in the Development of in vitro Flowering, Histology and Ultrastructural Studies in Impatiens balsamina cv. Dwarf Bush Planta Daninha MOHAMED,N.; TAHA,R.M.; RAZAK,U.N.A.A.; ELIAS,H.. ABSTRACT: An efficient protocol for in vitro flowering was successfully established for Impatiens balsamina cv Dwarf Bush, an important medicinal plant, through tissue culture techniques. Shoot, stem and petiole explants obtained from 4 week-old aseptic seedlings cultured on MS medium supplemented with different concentrations of plant growth regulator (PGR) were used for in vitro flower induction. Gibberellic acid (GA3), benzylaminopurine (BAP) and kinetin (Kin) treatment singly applied in MS media (pH 5.8), could all stimulate flowering at 23-26 oC with photoperiod of 16 hours light and 8 hours dark. It was observed that shoot explants were more responsive than stem explants in floral formation. Regeneration was achieved via direct organogenesis. For... Tipo: Info:eu-repo/semantics/article Palavras-chave: In vitro regeneration; Ultrastructural; Histology; Gibberellic acid; Flowering response. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100211 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco