옥수수 근권토양으로부터 N2O 환원 근권세균 Pseudomonas sp. M23의 분리 및 특성
Isolation and Characterization of a N2O-Reducing Rhizobacterium, Pseudomonas sp. M23 from Maize Rhizosphere Soil
Kim Ji-Yoon(Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea); 이수연(Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea); 조경숙(Department of Environmental Science and Engineering, Ewha Womans University, Seoul 03760, Republic of Korea)
51권 2호, 203~207쪽
초록
The N2O-reducing rhizobacterium, Pseudomonas sp. M23, was isolated from maize rhizosphere soil. The maximum N2O reduction rate of the strain M23 was 15.6 mmol·g-dry cell weight-1·h-1. Its N2O reduction activity was not inhibited by diesel contaminant, and it was enhanced by the addition of the root exudates of maize and tall fescue. The remediation efficiency of diesel-contaminated soil planted with maize or tall fescue was not inhibited by inoculating with the strain M23. Root weights in the soil inoculated with the strain M23 were greater than those in the non-inoculated soil. These results suggest that Pseudomonas sp. M23 is a promising bacterium to mitigate N2O emissions during the remediation of diesel-contaminated soil.
Abstract
The N2O-reducing rhizobacterium, Pseudomonas sp. M23, was isolated from maize rhizosphere soil. The maximum N2O reduction rate of the strain M23 was 15.6 mmol·g-dry cell weight-1·h-1. Its N2O reduction activity was not inhibited by diesel contaminant, and it was enhanced by the addition of the root exudates of maize and tall fescue. The remediation efficiency of diesel-contaminated soil planted with maize or tall fescue was not inhibited by inoculating with the strain M23. Root weights in the soil inoculated with the strain M23 were greater than those in the non-inoculated soil. These results suggest that Pseudomonas sp. M23 is a promising bacterium to mitigate N2O emissions during the remediation of diesel-contaminated soil.
- 발행기관:
- 한국미생물·생명공학회
- 분류:
- 생물학