Accession Number : AD0778687

Title :   Petroleum Degradation in Low Temperature Marine and Estuarine Environments.

Descriptive Note : Annual rept. no. 1, 1 May 73-30 Apr 74,


Personal Author(s) : Traxler,Richard W.

Report Date : MAY 1974

Pagination or Media Count : 63

Abstract : Bacterial isolates have been obtained by enrichment culture techniques from Narragansett Bay, R. I. and Chedabucto Bay, Nova Scotia. Hydrocarbon utilization profiles demonstrate some isolates able to utilize aromatic, cyclic and aliphatic hydrocarbons, some isolates able to utilize only cyclic and aliphatic hydrocarbons and other isolates only able to utilize aliphatic hydrocarbons. The isolates have been tentatively assigned to a number of different genera. Temperature studies demonstrated that the isolates are psychro-tolerant and hydrocarbons are metabolized at temperatures as low as 0C. Gas chromatographic analyses show a decrease in sediment hydrocarbons which correlates with the bacterial enrichment. Electron micrographs show increased differentiation of the cytoplasm, distortion and elongation of the cell shape, loss of slime material, formation of large inclusions, multiple nuclear areas and the presence of oxisomes in cells found in the hydrocarbon layer. (Modified author abstract)

Descriptors :   *Biodeterioration, *Microorganisms, *Hydrocarbons, Cultures(Biology), Enrichment, Rhode Island, Gas chromatography, Electron microscopy, Nova Scotia, Low temperature, Estuaries, Oceanography, Response(Biology), Metabolism, Bacteria, Aromatic hydrocarbons

Subject Categories : Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE