자성 박테리아 Magnetospirillum sp. AMB-1 의 1 차원적, 2차원적 운동성을 이용한 새로운 수질 독성 측정 방법

미생물을 이용한 새로운 독성 측정 방법으로서, 본 연구에서는 자성 박테리아 Magnetospirillum sp. AMB-1 세포들의 유영 속력 측정을 통한 독성 측정의 가능성과, 발광 박테리아를 이용한 기존의 $Microtox^{circledR}$ 시스템에 견줄 수 있는 새로운 독성 측정 방법이라는 사실을 확인하였다. 또한, AMB-1 세포들의 주기성 관찰을 통해 또 다른 독성 측정 방법의 가능성을 확인하였다.

In order to dovelop a novel toxicity measurement system using the persistent swimming property of magnetic bacteria along an externally applied magnetic field, certain characteristics of Magnetospirillum sp. AMB-1 cells were examined including their growth pattern, motility, magnetosensitivity, swimming speed. Plus, the effect of toxic compounds on the swimming speed was assessed relative to application as a toxicity sensor. The relative sensitivity of the proposed system was comparable to $Microtox^{circledR}$, which is commercially available. And the aerotactic behavior of AMB-1 cells was also examined with a viewpoint of another method of toxicity measurement.