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Applied and Environmental Microbiology, May 2000, p. 2208-2210, Vol. 66, No. 5
Biotechnology, Idaho National Engineering and
Environmental Laboratory, Idaho Falls, Idaho 83415
Received 18 October 1999/Accepted 17 January 2000
A fluorescence-labeled wheat germ agglutinin staining technique
(R. K. Sizemore et al., Appl. Environ. Microbiol. 56:2245-2247, 1990) was modified and found to be effective for staining
gram-positive, acidophilic mining bacteria. Bacteria identified by
others as being gram positive through 16S rRNA sequence analyses, yet
clustering near the divergence of that group, stained weakly.
Gram-negative bacteria did not stain. Background staining of
environmental samples was negligible, and pyrite and soil particles in
the samples did not interfere with the staining procedure.
0099-2240/00/$04.00+0
Evaluation of a Fluorescent Lectin-Based Staining
Technique for Some Acidophilic Mining Bacteria
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Corresponding author. Mailing address: Biotechnology,
Idaho National Engineering and Environmental Laboratory, P.O. Box 1625, MS 2203, 2351 North Blvd., Idaho Falls, ID 83415. Phone: (208) 526-8786. Fax: (208) 526-0828. E-mail: dstoner{at}inel.gov.
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