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Serological Typing and Chlorination Resistance of Wastewater Cyanophages

James L. Stanley and Robert E. Cannon
Journal (Water Pollution Control Federation)
Vol. 49, No. 9, Fiftieth Annual Conference (Sep., 1977), pp. 1993-1999
Stable URL: http://www.jstor.org/stable/25039391
Page Count: 7
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Serological Typing and Chlorination Resistance of Wastewater Cyanophages
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Abstract

No viral monitoring systems are currently used at wastewater treatment facilities because of the expense and difficulty of isolating animal viruses. However, cyanophages are easily isolated from wastewater and can be assayed quantitatively by most probable number procedure. A serological survey of Lyngbya-Phormidium-Plectonema attacking cyanophages at the North Buffalo Creek Sewage Treatment Plant in Greensboro, North Carolina, showed Lyngbya-Phormidium-Plectonema-2 predominated 9:1 over Lyngbya-Phormidium-Plectonema-1 cyanophage. The chlorine resistance of cyanophanges isolated at the wastewater treatment plant was substantially higher than laboratory strains of Lyngbya-Phormidium-Plectonema-1 and Lyngbya-Phormidium-Plectonema-2. Stock strains of both Lyngbya-Phormidium-Plectonema-1 and Lyngbya-Phormidium-Plectonema-2 were 99 percent inactivated in 15 minutes when exposed to a combined chlorine residual of 2.5 mg/l.

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