EFFECT OF SEWAGE SLUDGE APPLICATION ON CADMIUM RESISTANCE IN SOIL BACTERIAL POPULATIONS.

Tamar Barkay, Sue Tripp, Betty H. Olson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Soil bacterial populations were isolated from six sites, of which five had previously been amended with sewage sludge. The total heterotrophic aerobic bacterial population and the heterotrophic aerobic soil populations resistant to 10 ug/gm or 100 ug/gm cadmium were isolated from these soils. The isolated strains were identified to the genus level and the genera composition of these three populations was related to the cadmium concentration of the soils by a species diversity index. Gram-negative bacteria, specifically Flavobacterium spp. and Pseudomonas spp. showed higher tolerance to cadmium than Gram-positive genera. However, Pseudomonads were abundant only in cadmium resistant populations isolated from soils which had been exposed to sewage sludge for extended periods of time.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherCEP Consultants Ltd
Pages309-313
Number of pages5
ISBN (Print)0905941071
StatePublished - Dec 1 1983
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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