Data/hora: 12/06/2024 16:22:14

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 18/09/1995
Data da última atualização: | 18/09/1995
Autoria: | HACKETTE, S. L.; SKYE, G. E.; BURTON, C.; SEGEL, I. H.
Afiliação: | From the Departament of Biochemistry and Biophysics, University of California, Davis, California.
Título: | Characterization of an anmonium transport system in filamentous fungi with methylammonium- C as the substrate.
Ano de publicação: | 1970
Fonte/Imprenta: | The Journal of Biological Chemistry, v.245, n.17, p.4241-4250, 1970.
Idioma: | Inglês
Conteúdo: | Penicillium chrysogenum will grow on methylamine (methylammonium chloride) as its sole nitrogen source. The amine enters the mycelium by means of a transport system (permease) that satisfies several criteria for its identity as an ammonia (or ammonium ion) permease. Transport is temperature-dependent (Q10 of 2.1 between 20graus and 30graus), pH-dependent (optimum between pH 4.5 and pH 8.5), and ionic strenght-dependent (optimum and relatively constant between 0 and 10-3 M KCI). Methylamine transpot by nitrogen-sufficient mycelium is extremely low and obeys first order kinetics up to 10 -3 M external substrate.
Palavras-Chave: | Cromotografia; Cultivo de nucleo.
Thesagro: | Eletroforese; Química.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (16158-1) - ADC - SP - -- - S112 -  - S112 - DIS