Water Science & Technology Vol 46 No 1-2 pp 511518 © IWA Publishing 2002
Fighting foam with phages?
J.A. Thomas*, J.A. Soddell** and D.I. Kurtböke***
*Biotechnology Research Centre, La Trobe University, Bendigo, Victoria, 3550, Australia
**Biotechnology Research Centre, La Trobe University, Bendigo, Victoria, 3550, Australia
***Faculty of Science, University of the Sunshine Coast, Maroochydoore DC, Queensland, 4558, Australia
Seventeen (17) phages infective for the mycolata were isolated from six samples of activated sludge using 21 prospective hosts from the genera Dietzia, Gordonia, Nocardia, Rhodococcus, Tsukamurella and Mycobacterium. Their morphology indicated that they were all members of the viral family Siphoviridae, but they varied in the size of the icosahedral head and length of non-contractile tail, suggesting they were different. This was confirmed by host-range studies with 47 strains of mycolata, which showed that each phage had a unique host-range, and this was polyvalent in the majority (15/17) of cases, with 12 phages infective for hosts representing two or three of the genera Gordonia, Nocardia and Rhodococcus. The potential for use of these phages in the control of foaming and other applications is discussed.
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