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Wiley InterScience

Letters in Applied Microbiology

Letters in Applied Microbiology

Volume 34 Issue 2, Pages 86 - 90

Published Online: 21 Jan 2002

Journal compilation © 2010 The Society for Applied Microbiology



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A rapid staining technique for the detection of the initiation of germination of bacterial spores
T. Hamouda , A.Y. Shih & J.R. Baker, Jr
  1 Division of Allergy, Department of Medicine, and Center for Biological Nanotechnology, University of Michigan Medical School, Ann Arbor, Michigan, USA,   2 Current affiliation: NanoBio Corporation, Ann Arbor, Michigan, USA
Correspondence to: Dr James R. Baker Jr., University of Michigan Medical School, 9220 MSRB-III, 1150 West Medical Center Dr, Ann Arbor, Michigan 48109–0648 (e-mail: jbakerjr@umich.edu).
Copyright Society for Applied Microbiology

ABSTRACT

Aims: We propose to apply the Wirtz-Conklin staining technique to evaluate spore germination.

Methods and Results: Spores at different stages of germination were stained with modified spore stain (Wirtz-Conklin) and evaluated for staining properties. Bacillus spores suspended in deionized water, which does not support germination, stained greenish-blue. Spores suspended in germination enhancers that did not form bacilli stained pink, indicating the initiation of germination. Spores suspended in culture media, which promotes bacterial outgrowth, formed bacilli and were also stained pink.

Conclusions: Modified spore stain (Wirtz-Conklin) was found to be useful to detect the initiation of spore germination as early as 30 min following incubation in a germination environment.

Significance and Impact of the Study: This simple staining procedure is useful in detecting the initiation of germination of bacterial spores.


DIGITAL OBJECT IDENTIFIER (DOI)
10.1046/j.1472-765x.2002.01047.x About DOI

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