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Environmental Conditions of Psychrophilic Pseudomonas spp. in Antarctic Lake at Stornes Peninsula, Larsemann Hills, East Antarctica
Current Issue
Volume 2, 2015
Issue 3 (June)
Pages: 27-30   |   Vol. 2, No. 3, June 2015   |   Follow on         
Paper in PDF Downloads: 14   Since Aug. 28, 2015 Views: 2015   Since Aug. 28, 2015
Authors
[1]
Pawan Kumar Bharti, Antarctica Laboratory, R & D Division, Shriram Institute for Industrial Research, Delhi, India.
[2]
Utpal Kumar Niyogi, Antarctica Laboratory, R & D Division, Shriram Institute for Industrial Research, Delhi, India.
Abstract
Environmental monitoring and assessment was carried out during the 30th Indian Scientific Expedition to Antarctica (ISEA) at Larsemann Hills area in Ingrid Christenson coast. Surface water samples were collected from two lakes on Stornes Peninsula in mid-January 2011 and analysed for the physico-chemical parameters, major elements and trace metals. Lake waters were slightly acid, free from any colour, odour and turbidity, with dissolved oxygen close to saturation. Total dissolved solids were rather similar in both lakes, up to 71 mg/l and the dominant elements were Cl and Ca. Several minor and trace elements were very low or under detection limits. Total organic carbon was ca 0.7 mg C/l in both lakes and PO4 was at 0.002 mg/level in one lake. Total bacterial count was 1.6×103 cfu/ml in lake ST-2 and lower in other lake while psychrophilic bacterial count was 1.6×102 cfu in the former lake. Also a Pseudomonas spp. was detected in the ST-2 lake sample. Ecological studies of aquatic ecosystem of freshwater lakes indicated the suitable condition for the growth and survival of Pseudomonas species in a lake at Stornes Peninsula, Larsemann Hills over east Antarctica. The present study shows that the selected site may be an ideal habitat for the discovery of new species of Pseudomonas bacteria.
Keywords
Antarctic Lake, Pseudomonas, Psychrophillic Bacteria, Stornes Peninsula, Aquatic Ecology
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