Effect of hybrid poplar trees on microbial populations important to hazardous waste bioremediation
Journal Article
·
· Environmental Toxicology and Chemistry
- Univ. of Iowa, Iowa City, IA (United States). Dept. of Civil and Environmental Engineering
Microbial concentrations of denitrifiers, pseudomonads, and monoaromatic petroleum hydrocarbon (BTX) degraders were significantly higher (p < 0.1) in soil samples from the rhizosphere of poplar trees than in adjacent agricultural soils, and atrazine degraders were found only in one rhizosphere sample. The relative abundance of these phenotypes (as a fraction of total heterotrophs) was not significantly different between rhizosphere and surrounding soils. Therefore, the poplar rhizosphere enhanced the growth of microbial populations that participate in natural bioremediation without exerting selective pressure for them.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 514611
- Journal Information:
- Environmental Toxicology and Chemistry, Vol. 16, Issue 6; Other Information: PBD: Jun 1997
- Country of Publication:
- United States
- Language:
- English
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