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Applied and Environmental Microbiology, March 2009, p. 1445-1449, Vol. 75, No. 5
0099-2240/09/$08.00+0     doi:10.1128/AEM.02039-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Simultaneous Interferometric Measurement of Corrosive or Demineralizing Bacteria and Their Mineral Interfaces{triangledown} ,{dagger}

M. S. Waters,1 M. Y. El-Naggar,2 L. Hsu,3 C. A. Sturm,4 A. Luttge,4 F. E. Udwadia,5 D. G. Cvitkovitch,6 S. D. Goodman,7 and K. H. Nealson2*

University of Southern California, Department of Molecular and Computational Biology, 1050 Childs Way MCB 201B, Los Angeles, California 90089-2910,1 University of Southern California, Department of Geobiology, 835 W. 37th St. SHS 562, Los Angeles, California 90089,2 University of Southern California, Department of Environmental Engineering, 835 W. 37th St. SHS 562, Los Angeles, California 90089,3 Rice University, Department of Earth Science, MS-126, 6100 S. Main St., Houston, Texas 77005,4 University of Southern California, Department of Aerospace and Mechanical Engineering, Viterbi School of Engineering, OHE 430K, Los Angeles, California 90089-1453,5 University of Toronto, Faculty of Dentistry, Department of Oral Microbiology, 124 Edward St., Rm. 449A, Toronto, Ontario, Canada M5G 1G6,6 University of Southern California, Norris School of Dentistry, Division of Diagnostic Sciences, 925 W. 34th St. DEN 4108, Los Angeles, California 90089-06417

Received 2 September 2008/ Accepted 26 December 2008

Here, we report simultaneous surface profile measurements of several bacterial species involved in microbially influenced corrosion and their solid-surface interfaces by using vertical scanning interferometry. The capacity to nondestructively quantify microscale topographic changes beneath a single bacterium without its removal offers a unique opportunity to examine in vivo microbe-surface interactions.

* Corresponding author. Mailing address: University of Southern California, Department of Geobiology, 835 W. 37th St. SHS 562, Los Angeles, CA 90089. Phone: (213) 821-2511. Fax: (213) 740-8801. E-mail: knealson{at}usc.edu

{triangledown} Published ahead of print on 5 January 2009.

{dagger} Supplemental material for this article may be found at http://aem.asm.org/.

Applied and Environmental Microbiology, March 2009, p. 1445-1449, Vol. 75, No. 5
0099-2240/09/$08.00+0     doi:10.1128/AEM.02039-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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