Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2011 Nov;77(21):7864-7.
doi: 10.1128/AEM.05692-11. Epub 2011 Sep 16.

Prevention of Gordonia and Nocardia stabilized foam formation by using bacteriophage GTE7

Steve Petrovski  1 , Robert J Seviour, Daniel Tillett
Affiliations

Prevention of Gordonia and Nocardia stabilized foam formation by using bacteriophage GTE7

Steve Petrovski et al. Appl Environ Microbiol. 2011 Nov.

Abstract

Most activated sludge treatment plants suffer from the presence of foams on the surfaces of their aeration reactors. These are often stabilized by hydrophobic mycolic acid-synthesizing actinobacterial species. A polyvalent Siphoviridae phage, GTE7, which lysed several Gordonia and Nocardia species, is described here. Its genome has a modular structure similar to that described for Rhodococcus phage ReqiDocB7. In laboratory-scale experiments, we showed that GTE7 prevents stabilization of foams by these Gordonia and Nocardia species.

PubMed Disclaimer

Figures

Fig. 1.
Fig. 1.
Electron micrograph of GTE7. Bar = 70 nm.
Fig. 2.
Fig. 2.
Circular map of the GTE7 genome. Arrows represent the putative genes and the direction in which they are transcribed. Modules are shaded in similar colors, and the inner circle indicates the genes encoded within the modules.
See this image and copyright information in PMC

References

    1. Brüssow H., Desiere F. 2001. Comparative phage genomics and the evolution of Siphovirdae: insights from dairy phages. Mol. Microbiol. 39:213–222 - PubMed
    1. Cheng X., Zhang X., Pflugrath J. W., Studier F. W. 1994. The structure of bacteriophage T7 lysozyme, a zinc amidase and an inhibitor of T7 RNA polymerase. Proc. Natl. Acad. Sci. U. S. A. 91:4034–4038 - PMC - PubMed
    1. de los Reyes F. L. 2010. Foaming, p. 215–259 In Seviour R. J., Nielsen P. H. (ed.), Microbial ecology of activated sludge. IWA Publishing, London, United Kingdom
    1. Eisen J. A., Kevis S., Hanawait P. C. 1995. Evolution of the SNF2 family of proteins: subfamilies with distinct sequences and functions. Nucleic Acids Res. 23:2715–2723 - PMC - PubMed
    1. Goodfellow M., Maldonado L. A. 2006. The families Dietziaceae, Gordoniaceae, Nocardiaceae and Tsukamurellaceae, p. 843–888 In Dworkin M., Flakow S., Rosenberg E., Schleifer K.-H., Stackebrandt E. (ed.), The prokaryotes: archaea. Bacteria: firmicutes, actinomycetes. Springer, New York, NY

Publication types

Associated data

LinkOut - more resources