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Applied and Environmental Microbiology, July 2006, p. 5093-5096, Vol. 72, No. 7
0099-2240/06/$08.00+0     doi:10.1128/AEM.00333-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Simulating the Contribution of Coaggregation to Interspecies Hydrogen Fluxes in Syntrophic Methanogenic Consortia{dagger}

Shun'ichi Ishii,1* Tomoyuki Kosaka,1 Yasuaki Hotta,2 and Kazuya Watanabe1

Marine Biotechnology Institute, Heita, Kamaishi, Iwate 026-0001,1 Central Research Institute of Oral Science, School of Dentistry, Asahi University, Hozumi, Mizuho, Gifu 501-0296, Japan2

Received 10 February 2006/ Accepted 28 April 2006

A simple model (termed the syntrophy model) for simulating the contribution of coaggregation to interspecies hydrogen fluxes between syntrophic bacteria and methanogenic archaea is described. We applied it to analyzing partially aggregated syntrophic cocultures with various substrates, revealing that large fractions of hydrogen molecules were fluxed in aggregates.

* Corresponding author. Mailing address: Marine Biotechnology Institute, Heita, Kamaishi, Iwate 026-0001, Japan. Phone: 81-193-26-6581. Fax: 81-193-26-6592. E-mail: shunichi.ishii{at}mbio.jp.

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

Applied and Environmental Microbiology, July 2006, p. 5093-5096, Vol. 72, No. 7
0099-2240/06/$08.00+0     doi:10.1128/AEM.00333-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



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