Data/hora: 01/06/2024 14:26:52

Provedor de dados: | 5
País: | France
Título: | Methods for microbial biomass, community structure and metabolic activities on surfaces.
Autores: | White, D.
Data: | 1984-10
Ano: | 1984
Palavras-chave: | Bacteria; Fouling; Bioassays; Metabolism; Surfaces; Bacteria collecting devices; Culture media; Microbiological analysis.
Resumo: | Microbes in nature are often concentrated on surfaces where they exist in microcolonies of mixed composition. The assay of these mixed microbial consortia by utilizing biochemical components eliminates the problems associated with cultural selectivity of viable counts or the requirement for quantitative release from surfaces required in some microscopic techniques. The assay of cellular components restricted to subsets of the microbial community gives insights into the community structure of the biofilm whereas assay of cellular components common to all cells can be used for biomass estimations. Formation of endogenous storage materials can be utilized as measures of nutritional status and rates of formation or turnover of specific "signatures" from labeled precursors can give insight into metabolic activities. Extracellular polymers involved in adhesion are also important components of biofilms. These analyses are destructive. They can now be correlated with non-destructive analyses by Fourier transforming infrared spectrometry which may provide real-time analyses of biofilm dynamics.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/1984/acte-963.pdf
Editor: | Actes de colloques. Ifremer Brest [ACTES COLLOQ. IFREMER.]. 1986
Relação: | http://archimer.ifremer.fr/doc/00000/963/
Formato: | application/pdf