Listar Facultades por autor "Ball Vargas, María Mercedes"
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Characterization of the mineral phosphate-solubilizing activity of pantoea aglomerans MMB051 isolated from an Iron-Rich soil in southeastern Venezuela (Bolívar State)
Pérez P., Elizabeth M.; Sulbarán Mora, Miguel; Ball Vargas, María Mercedes; Yarzábal R., Luis A.; Bahsas B., Alí H. (Current Microbiology 2009 Apr;58(4):378-83, 2008-12-09)The mineral phosphate-solubilizing (MPS) activity of a Pantoea agglomerans strain, namely MMB051, isolated from an iron-rich, acidic soil near Ciudad Piar (Bolý´var State, Venezuela), was characterized on a chemically ... -
Información Investigador: Ball Vargas, María Mercedes
Ball Vargas, María Mercedes (2008-09-19)Resumen Curricular Estudios de Lic. en Biología en la Universidad de Los Andes, Mérida, Venezuela. Postgrado en Inmunología en el Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela. ... -
Isolation and characterization of mineral phosphate-solubilizing bacteria naturally colonizing a limonitic crust in the south-eastern Venezuelan region
Pérez P., Elizabeth M.; Sulbarán Mora, Miguel; Ball Vargas, María Mercedes; Yarzábal R., Luis A. (Soil Biology & Biochemistry 39 (2007) 2905–2914, 2007-11)With the aim to explore the possible role of mineral phosphate-solubilizing bacteria (PSB) in phosphorus (P) cycling in iron-rich, acidic soils, we conducted a survey of PSB naturally colonizing a limonitic crust in the ... -
Mercury resistance in bacterial strains isolated from tailing ponds in a gold mining area near El Callao (Bolívar State, Venezuela)
Ball Vargas, María Mercedes; Yarzábal R., Luis A.; Carrero M., Pablo E.; Castro, David (Current Microbiology 2007 Feb;54(2):149-54, 2007-02-01)Bacterial resistance to mercury (Hg) was investigated in strains isolated from Hg-contaminated tailing ponds located in the gold mining area of El Callao (Bolívar State, Venezuela). High frequencies of resistance were ...