Light and Electron Microscopic Studies of Microorganisms Growing in Rotating Biological Contactor Biofilms
AUTOR(ES)
Kinner, Nancy E.
RESUMO
The biofilms growing in the first compartments of two rotating biological contactors used to treat municipal wastewater were examined by light and electron microscopy. The biofilms were found to contain a complex and varied microbial community that included filamentous and unicellular bacteria, protozoa, metazoa, and (possibly) bacteriophage. The predominant microorganism among these appeared to be a filamentous bacterium that was identical to Sphaerotilus in both morphological and ultrastructural characteristics. It was possible to isolate a Sphaerotilus-like bacterium from each contactor. Both the Sphaerotilus filaments and the wide variety of unicellular bacteria present tended to contain poly-β-hydroxybutyrate inclusions, a probable indication that these organisms were removing carbon from the wastewater and storing it. The microbial population of the biofilms appeared to be metabolically active, as evidenced by the presence of microcolonies and dividing cells.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=242513Documentos Relacionados
- Light and Electron Microscopic Examinations of Methane-Producing Biofilms from Anaerobic Fixed-Bed Reactors †
- Juvenile rheumatoid arthritis with rice bodies: light and electron microscopic studies.
- Hereditary motor end-plate disease in the mouse: light and electron microscopic studies.
- STUDIES OF THE FINE STRUCTURE OF MICROORGANISMS II. Clostridium sporogenes: Electron Microscopic Studies on Sporulation of
- Light microscopic and electron microscopic histopathology of an iris microhaemangioma.