Data/hora: 11/06/2024 07:20:55

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Influence of calcium content of tissue on hyperhydricity and shoot-tip necrosis of in vitro regenerated shoots of Lavandula angustifolia Mill.	
Autores: 	Machado,Marília Pereira; Silva,André Luís Lopes da; Biasi,Luiz Antonio; Deschamps,Cícero; Bespalhok Filho,João Carlos; Zanette,Flávio.	
Data: 	2014-10-01	
Ano: 	2014	
Palavras-chave: 	True lavender Micropropagation CaCl2.2H2O; Leaf anatomy Ultrastructure Trichome.	
Resumo: 	In the present study, the effects of two CaCl2.2H2O levels (440 and 1320 mg L-1) and two subcultures were evaluated on in vitro shoots of Lavandula angustifolia cv. Provence Blue. Ca2+ content of the apical, middle and basal portion of shoots was determined. Increasing CaCl2.2H2O level in the culture medium increased tissue Ca2+ content and decreased hyperhydricity. Shoot-tip necrosis also decreased with 1320 mg L-1 CaCl2.2H2O, but it did not occur in the second subculture. The middle and basal portion had higher Ca2+ content than apical portion. In non-hyperhydric tissues, there were smaller and more juxtaposed cells. Scanning electron microscopy of the leaves demonstrated that trichomes from in vitro leaf surface occurred in smaller quantities.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500636	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-8913201402165	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.57 n.5 2014	
Fonte: 	info:eu-repo/semantics/openAccess