Data/hora: 10/06/2024 03:47:31

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	28/08/1995	
Data da última atualização: 	28/08/1995	
Autoria: 	SRIVASTAVA, H. S.; ASTHANA, J. S.; JAIN, A.	
Afiliação: 	Department of Life Sciences, Vigyan Bhawan, Khandwa Road, University of Indore, (M.P.) India.	
Título: 	Induction of nitrate redactase and peroxidase activity in the seedlings of normal and high lysine maize.	
Ano de publicação: 	1979	
Fonte/Imprenta: 	Physiol. Plant., v.47, p.119-123, 1979.	
Idioma: 	Inglês	
Conteúdo: 	Steady state levels oin vivo nitrate reductase activity in the endosperm, scutella, roots and shoots of maize seedlings were higher in normal maize than those in high lysine maize. Activity of peroxidase in the roots, however, was higher in the high lysine cultivar. The nitrate reductase activity increased with the supply of nitrate in all parts of the seedlings of both cultivars, although the rates of increment in the endosperm were lower than those in scutella, roots and shoots. In relation to substrate concentration, a saturation was achieved at 5 to 10 mM of nitrate except in the endo-sperm, where activity increased slowly up to 100 mM at least. Final levels of enzyme activity were significantly higher in the scutella of normal than in that high lysine seedlings. In vitro enzyme activity in the roots also increased with the supply of nitrate in both cultivars, reaching maximum at 5 to 10 mM nitrate.	
Palavras-Chave: 	Enzyme induction; Maize seedling.	
Thesagro: 	Peroxidase.	
Thesaurus Nal: 	nitrate reductase.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
Exemplares: 	CNPMF - (15916-1) - ADC - SP - -- - S3054 -  - S3054 - DIS