Accession Number : AD0715038
Title : New Data on the Species Composition of Black Sea Microorganisms (Novye Materialy o Vidovom Sostave Mikroorganizmov Chernogo Morya),
Corporate Author : NAVAL INTELLIGENCE COMMAND ALEXANDRIA VA TRANSLATION DIV
Personal Author(s) : Kriss,A. E. ; Markyanovich,E. M. ; Rukina,E. A.
Report Date : 28 OCT 1970
Pagination or Media Count : 86
Abstract : Many species of microorganisms occur widely in the waters and oozes of the Black Sea. They were detected in 1948 and 1949 at a number of stations situated at great distances apart, in the most different layers of the oxygen and hydrogen sulfide zones, as well as in oozes. The fact that almost all the species encountered in several parts of the sea were detected simultaneously in horizons in the oxygen and hydrogen sulfide zones indicates that such microbal forms are readily capable in their vital functions of a change from aerobic respiration conditions to the use of sources of bound oxygen. The overwhelming majority of the cultures of microorganisms insolated from the Black Sea had considerable biochemical activity. Among the 733 studied cultures 73% caused changes in the protein molecule with the formation of ammonia and 61% liquefied gelatin. Many carbohydrate substances are easily transformed by Black Sea microorganisms, especially glucose; these were capable of decomposing more than 60% of the cultures of microorganisms. Transformations of such compounds as mannite and disaccharides occurred in the course of vital functions, in more than 40% of the total number of isolated cultures. A lesser number were capable of decomposing starch (35%) and lactose (22%). The collected materials yield new evidence that the entire water thickness and bottom of the Black Sea are populated by microorganisms directly participating in the cycles of compounds of carbon, nitrogen, sulfur and other biogeneous elements.
Descriptors : (*MICROORGANISMS, *BLACK SEA), CLASSIFICATION, DISTRIBUTION, OXYGEN, SULFIDES, BIOCHEMISTRY, PHYSIOLOGY
Subject Categories : Microbiology
Distribution Statement : APPROVED FOR PUBLIC RELEASE