Title Characterization of azomonas agilis PY101, a cadmium-resistant strain isolated from anyang stream
Author You, Kyung Man¹ · Lee, Ji Hyun¹ · Kim, Jeong Kook¹ · Hah, Nam Ju³ · Lee, Yung Nok¹ · Park, Yong Keun¹'² *
Address ¹Department of Biology, ²Graduate school of Biotechnology, Korea University; ³Department of Pharmacy, Sacmyook University
Bibliography Journal of Microbiology, 34(3),289-293, 1996,
DOI
Key Words cadmium-resistant strain, Axomonas agilis PY101, green-fluorescent pigment
Abstract A cadimium-resistant strain isolated from Anyang stream, Azomonas agilis PY101 exhibited strong resistance to 1000 ppm of cadmium ion (Cd^2+). A agilis PY101 also exhibited resistance to various antibiotics, such as amoxicillin, amplicilin, bacitracin, cefazolin, erythromycin, penicilin, tetracycline, and vancomycin. In the presence of Cd^2+, the growth of A. aglis PY101 started after an extended lag phase and produced a green-fluorescent pigment induced by cadmium. The dramatic decrease (approximately 400ppm) of concentration of cd^2+ in the culture medium during the growth phase of A. agilis PY101 was confirmed by the inductively coupled plasma-atomic emission spectrophotometer. Transmission electron microscopic analysis revealed that A. agilis PY 101 actively accumulated Cd^2+ in the cytoplasm.
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