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. 1994 Dec;60(12):4596-9.
doi: 10.1128/aem.60.12.4596-4599.1994.

Molecular analysis of mercury-resistant Bacillus isolates from sediment of Minamata Bay, Japan

K Nakamura  1 , S Silver
Affiliations

Molecular analysis of mercury-resistant Bacillus isolates from sediment of Minamata Bay, Japan

K Nakamura et al. Appl Environ Microbiol. 1994 Dec.

Abstract

Bacillus isolates from Minamata Bay sediment were selected for the ability to volatilize mercury from a range of organomercurials (including methylmercury). Chromosomal DNA from 74 of 78 such strains hybridized with the mer mercury resistance operon DNA from marine Bacillus sp. strain RC607 (Y. Wang, M. Moore, H. S. Levinson, S. Silver, C. Walsh, and I. Mahler, J. Bacteriol. 171:83-92, 1989). The most frequent classes with regard to restriction nuclease site maps of the mer operon for the new isolates were identical to or closely related to the mer determinant of strain RC607. PCR amplification analysis with primers designed from the strain RC607 mer operon gave products of precisely the predicted size with the 74 Minamata Bay isolates.

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