Download Bulgarian Antarctic Research: Life Sciences by V. Golemansky, N. Chipev PDF

By V. Golemansky, N. Chipev

This can be a choice of papers offering the medical result of the 3rd Bulgarian Antartic day trip (1995). assurance comprises papers on weather conditions, soils, humus formation, plants, soil micro-organisms; actinomyces and streptomyces traces, diatoms, interstitial rhizopods, testate amoebae, soil nematodes, cestodes in birds on the Bulgarian Antartic Base at the Livingston Island, South Shetlands, Antarctic. in addition to book of latest facts, such a lot papers additionally contain short overviews on comparable reviews from the Antarctic. Maps and images of the studied habitats also are enclosed.

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At temperatures lower than – 1°C and ethanol as a substrate, 90% of the total fatty acids were unsaturated with a predomination of linolenic (C18:3) from 35 to 50% and linoleic (C18:2) from 25 to 30% acids. At a temperature close to the maximum for growth 18°C linolenic acid constituted less than 20% of the total fatty acids, while oleic (20 to 40%) and linoleic (30 to 50%) acids were the major components. The membrane lipid composition changed depending on the temperature of growth of the psychrophilic yeasts.

Albidus 16-1. 2%. NaCl concentration influenced the fatty acid composition of Antarctic yeasts, and stimulated the synthesis of particular fatty acids, depending on the individual strain characteristics. ACKNOWLEDGMENTS The authors thank the National Foundation for Research at the Ministry of Education and Science of the Republic of Bulgaria for financing this research. I. GRAY, A. ASGHAR. 1998. Chemical haracterization and stereospecific analysis of lipids synthesized by certain yeast strains.

46, 5: 397-401. , S. BAHARAEEN. 1982. auct an Antarctic yeast species comprising four new varieties. Int. J. Syst. Bacteriol. 32: 437-445. P. HEMPLING. 1979. Evidence of an indigenous microbiota yeast in the dry valley of Antarctica. J. Gen. Microbiol. 112: 301-314. , K. PAVLOVA, D. GRIGOROVA. 2001. Lipid composition of same strains from the Livingston Island, Antarctica. Folia Microbiol. 46, 5: 401-405. BAR4 Page 35 © PENSOFT Publishers Bulgarian Antarctic Research BIOCHEMICAL CHARACTERISTIC OF ANTARCTIC YEASTS 35 Sofia – Moscow Life Sciences, vol.

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