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Applied and Environmental Microbiology, April 2007, p. 2631-2634, Vol. 73, No. 8
0099-2240/07/$08.00+0     doi:10.1128/AEM.02061-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Effects of Bacterial Prey Species and Their Concentration on Growth of the Amoebae Acanthamoeba castellanii and Hartmannella vermiformis{triangledown}

Zoë L. Pickup,1 Roger Pickup,2 and Jacqueline D. Parry1*

Department of Biological Sciences, The Lancaster Environment Centre, Faculty of Science and Technology, Lancaster University, Lancaster LA1 4YQ, United Kingdom,1 Centre for Ecology and Hydrology, The Lancaster Environment Centre, Library Avenue, Lancaster University, Lancaster LA1 4AP, United Kingdom2

Received 31 August 2006/ Accepted 1 February 2007

Two amoebae were presented with six bacterial prey at a range of concentrations, and the growth parameters of the amoebae were deduced. All but one bacterium (Synechococcus) resulted in a positive growth response, but the gram-positive bacterium Staphylococcus aureus proved to be difficult to digest and the heavily pigmented bacterium Klebsiella ozaenae induced unusual amoebic behavior prior to ingestion.

* Corresponding author. Mailing address: Department of Biological Sciences, The Lancaster Environment Centre, Faculty of Science and Technology, Lancaster University, Lancaster LA1 4YQ, United Kingdom. Phone: 44 1524 593489. Fax: 44 1524 593192. E-mail: j.parry{at}lancaster.ac.uk

{triangledown} Published ahead of print on 9 February 2007.

Applied and Environmental Microbiology, April 2007, p. 2631-2634, Vol. 73, No. 8
0099-2240/07/$08.00+0     doi:10.1128/AEM.02061-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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