189 KRASIL'NIKOV 



and in melioration of solonetz soil and saline lands of the 



U.S.S.R. 



Bibliography: 



Solonchak and Solonetz Soil. Moscow -Leningrad: 1937. 



Origin and Regime of Saline Soils. Vol. 1-2. Moscow- 

 Leningrad: 1946-47. 



Lowland Soils Near the Caspian Sea (North- West part). 



Moscow -Leningrad: 1950. 



The Geochemistry of U.S.S.R. Deserts. Moscow: 1954 (this 



edition contains a bibliography). 



Mineral Composition of Flora, and Pedogenesis in Pochvove- 



denie. 1956, #1. 

 Office: Moscow University 



Moscow, USSR 

 Residence: M. Yakimanka, 3 



Moscow, USSR 

 Telephone: Bl 05 99 



KRASIL'NIKQV, NIKOLAI ALE KSANDRQ VIC H (Microbiologist) 

 N. A. Krasil'nikov was born December 18, 1896. He gradu- 

 ated in 1926 from Leningrad University and in 1929 began work- 

 ing at the Institute of Microbiology of the U.S.S.R. Academy of 

 Sciences. For a number of years he participated in expeditions 

 for the study of soil microorganisms in various parts of the 

 country. Since 1946 he has been a Corresponding Member of 

 the U.S.S.R. Academy of Sciences. He is also a member of 

 Moscow State University. In 1951 he was awarded a Stalin 

 Prize. 



The scientific work of Krasil'nikov is the field of biology of 

 microorganism, mainly the study of actinomycetes and bacteria. 

 Krasil'nikov studied their structure, development, variability, 

 physiological properties; he worked out a new principle of 

 classification of actinomycetes and bacteria, and compiled tables 

 for determining their series and species. He investigated the 

 interrelation of microorganisms and higher plants and proposed 

 a series of practical measures for increasing crop yields. He 

 investigated antagonism between microorganisms and worked 

 out the method for protecting plants against phytopathogenic 

 bacteria and fungi. He also carried out investigations in anti- 

 biotics and described antibiotics of actinomycetic origin. 



Bibliography: 



Actinomycetes and Related Organisms, Actinomycetales. 

 Moscow -Leningrad: 1938. 



