Dhakephalkar Anita Prashant PCR Based DNA Fingerprinting of Iron- and Sulfur - Oxidizers and Assocaiated Bcteria from Mining Ecosystem : A thesis submitted for award of the degree of Ph D in Microbiology under the guidance of KM Paknikar - Agharkar Res Inst, Pune, India Dewey Class. No.: G P08/DHAKEPHALKAR ANI/b26144