People >Dr. Bala Ramaswami
Post-doctoral Research Associate
Completed her work in May 2005.
Research: Using bacteriophages to elucidate the sources of phosphorus
pollution for Table Rock Lake.
We studied the use of bacteriophages as biological tracers in surface
waters and waste waters. Bacteriophages are neither toxic nor pathogenic
for other living organisms as they penetrate only a specific bacterial
host. Specific bacteriophages are shed by bacteria in the human gut
and can be used as markers for phosphate pollution in lakes. The bacteriophages
of Bacteroides fragilis have been proven to be specifically
present in human faeces. Such bacteriophages are very specific and finding
these bacteriophages together with phosphate in a lake indicates that
phosphate pollution is due to human activity rather than, for example,
wildlife. Understanding the source of pollution is of utmost importance
to improve the water quality of lakes in the USA.
