742d3ab4-dba9-4b57-b391-1d386e0d5573 English UTF-8 Dataset Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Point of contact 2020-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Microbiological Studies in Schirmacher Oasis, Antarctica Effect of Temperature on Bacterial Populations 2020-08-25 Creation Document digital Seasonal and site wise variation in size and diversity of bacterial population was observed in Schirmacher Oasis Antarctica. Prevailing soil temperature limited the distribution and abundance of groups of bacteria like psychrophiles psychrotrophs and mesophiles. Pulses in the bacterial cycle were also found in the Basis as a function of daily and seasonal variations in air and soiltemperature. Requirement of growth temperature of individual bacterium is the best physiological marker to work out the survival strategies of micro organisms. Effect of seasonal variations in temperature was directly manifested in diversity index and generation time of micro organisms. In temperature response study organisms like Serratia were found tolerating very low temperatures(-40?C) indicating the physiological adaptation of bacteria to sub freezing temperatures persisting in Schirmacher Oasis during Antarctic winter. The existence of an extensive microflora in Antarctic soils is well established (Boyd et al 1966Benoit et al 1970 Evans, 1982 and Matondkar et al 1983) Cameron (1972) attempted a microbiological study of Antarctic ice sheet with reference to survival of viable microbes in dry valleys and mountains of the interior. Some information about distribution pattern of endolithic microbes and its environment are also available (Mckay et al 1985). In all these studies mainly distribution and ecology during austral summers were attempted with few exceptions of round the year studies. Wynn-Williams (1980) studied the decomposer activity over a period of one year at Signy Island. Completed Dr. S G Prabhu Matondkar National Centre for Polar and Ocean Research (NCPOR) 8322525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Principal investigator Earth Science-Biological Classification Theme Schirmacher Oasis Antarctic Place Microbiological Studies in Schirmacher Oasis Project English biota 20.0 140.0 -90.0 30.0 1983-01-01 1984-12-31 TableDigital unknown unknown Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Distributor http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF13436131&userType=user&freeTextValue=Microbiological+Studies+in+Schirmacher+Oasis%2C+Antarctica+Effect+of+Temperature+on+Bacterial+Populations