Hyun, M.-S. Chang, I.-S. Park, H.-S. Kim, B.-H. Kim, H.-J. Lee, H.K. Kwon, K.K. 2024-01-21T16:13:21Z 2024-01-21T16:13:21Z 2021-09-02 1999-01 0257-2389 https://pubs.kist.re.kr/handle/201004/142638 Anoxic sediments collected from Shiwha-ho area were used to find the relationship between the heavy-metal, organic content and anaerobic respiration bacteria by most probable number (MPN) method. Analysis of the sediments showed that COD content was higher in the sediments collected from Ansan-cheon and Shiwha-ho than those collected from sea area nearby. Particularly noticeable was the fact that heavy metal concentration was much higher in the sediments of Shiwha-ho than those of the other areas. Fe(III)- reducing bacteria were low in the sediments collected from Shiwha-ho area contaminated by heavy-metal, although they were rich in electron donor and electron acceptor for Fe(III)-reducing bacteria. The number of Fe(III)- reducing bacteria using lactate as an electron donor was in the range of 1.1 x 106-4.6 x 107 MPNs/ml in the sediments collected from the sea-side of the lake, which were lower in heavy-metal concentration and higher in Fe-Mn content than those from other region. The number of Fe(III)-reducing bacteria using acetate as an electron donor was in the range of 4.3 x 102-8.1 x 105 MPNs/ml in the same sediments. Chromate-reducing bacteria were more populated (4.6 X 104-8.1 x 105 MPNs/ml) in the sediments contaminated by heavy metals. The number of sulfate-reducing bacteria was 1.49 x 107 MPNs/ml in the sediments with higher COD. Higher sulfate-reducing bacteria were counted in the sediments collected from the more contaminated inner-side than those from the sea-side of the lake. Korean chromic acid heavy metal iron sulfate anaerobic bacterium article bacterium contamination bacterium identification Korea nonhuman sediment sulfate reducing bacterium Relationship between the organic content, heavy metal concentration and anaerobic respiration bacteria in the sediments of Shiwha-ho Article 1 Korean Journal of Applied Microbiology and Biotechnology, v.27, no.3, pp.252 - 259 Korean Journal of Applied Microbiology and Biotechnology 27 3 252 259 scopus 2-s2.0-0032788538 Article chromic acid heavy metal iron sulfate anaerobic bacterium article bacterium contamination bacterium identification Korea nonhuman sediment sulfate reducing bacterium Anaerobic respiration bacteria Chromate-reducing bacteria Fe(III)-reducing bacteria Sulfate-reducing bacteria