INVESTIGADORES
BRECCIA Javier Dario
artículos
Título:
Quantitative relationship between maximum growth rates and the intracellular pattern of α-esterase and β-esterase activity of leguminous infecting bacteria
Autor/es:
GRASSANO AE; RONCHI AL; GARCIA PG; MAZZAFERRO L; BRECCIA JD
Revista:
NEW BIOTECHNOLOGY
Editorial:
Elsevier (European Federation of Biotechnology)
Referencias:
Lugar: The Nederlands; Año: 2009 vol. 26 p. 234 - 238
ISSN:
1871-6784
Resumen:
Sixteen strains belonging to three families of the Rhizobiales order (Bradyrhizobiaceae, Phyllobacteriaceae and Rhizobiaceae) were evaluated according their specific growth rates (m) and the activity of intracellular a-esterase and b-esterase isoenzymes. The average esterase activity of 48 isoenzymes assayed belonging to five strains with low (mmax = 0.08?0.12 h1), four medium (mmax = 0.13?0.22 h1) and seven high (mmax = 0.24?0.28 h1) growth rate values were 22.1 4.3; 8.7 2.2 and 3.9 1.7 U g1 respectively. An inversely proportional relationship between the activity of the whole pattern of esterases and mmax was found. Our results illustrate a feature of intracellular esterases, ascribable in a variety of cellular functions, which might be related to characteristics mmax of legume infecting bacteria.