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Mannosylglucosylglycerate biosynthesis in the deep-branching phylum Planctomyce...
Cunha, Sofia; Avó, Ana Filipa d’; Mingote, Ana; Lamarosa, Pedro; Costa, M. S. da; Costa, J.The biosynthetic pathway for the rare compatible solute mannosylglucosylglycerate (MGG) accumulated by Rhodopirellula baltica, a marine member of the phylumPlanctomycetes, has been elucidated. Like one of the pathways used in the thermophilic bacterium Petrotoga mobilis, it has genes coding for glucosyl-3-phosphoglycerate synthase (GpgS) and mannosylglucosyl-3-phosphoglycerate (MGPG) synthase (MggA). However, u...
Computer-aided comparison of protein electrophoretic patterns for grouping and ...
Ferreira, A. C.; Morais, P. V.; Gomes, C.; Costa, M. S. daThe microflora of a natural mineral water was studied immediately after bottling (T0) and after 7 d storage (T7) during 6 months, and isolates were clustered by SDS-PAGE of wholecell protein profiles. Isolates from each cluster were further characterized by API 20NE, fatty acid composition and quinone profiles. The numerical analysis of the electrophoregrams of all bacteria isolated from the mineral water forme...
Survival of allochthonous bacteria in still mineral water bottled in polyvinyl ...
Moreira, Leonilde; Agostinho, Paula; Morals, Paula Vasconcellos; Costa, M. S. daThe mortality of Escherichia coli, Enterobacter cloacae, Klebsiella pneumoniae and Pseudomonas aeruginosa, based on the culturability of these bacteria, was assessed in non-carbonated mineral water, bottled in polyvinyl chloride (PVC) containing the indigenous flora, sterile mineral water bottled in PVC, sterile mineral water in glass containers, and sterile tap water in glass containers. There was a general de...
Heterotrophic plate counts and the isolation of bacteria from mineral waters on...
Manaia, Célia M.; Nunes, Olga C.; Morais, Paula V.; Costa, M.S. DaManaia, C.M., Nunes, O.C., Morais, P.V. & da Costa, M.S. 1990. Heterotrophic plate counts and the isolation of bacteria from mineral waters on selective and enrichment media. Journal of Applied Bacteriology69, 8712013876. The heterotrophic plate counts of 15 brands of bottled non-carbonated mineral waters were examined and found to be generally high and variable. Four selective or enrichment media for the enume...
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