[The bioutilization of thiodiglycol (a breakdown product of mustard gas): isolation of degraders and investigation of degradation conditions].
The Alcaligenes xylosoxydans subsp. denitrificans strain TD1 capable of degrading thiodiglycol (TDG), a breakdown product of mustard gas, was isolated from soil contaminated with breakdown products of this chemical warfare agent. The selected stable variant of TD1 (strain TD2) can grow on TDG with a lag phase of 4-8 h and a specific growth rate of 0.04-0.045 h-1. Optimal conditions for the biodegradation of TDG (pH, the concentration of TDG in the medium, and its relative content with respect to the bacterial biomass) were determined. TDG was found to be degraded with the formation of diglycolsulfoxide and thiodiglycolic acid. The data obtained can be used to develop approaches to the bioremediation of mustard gas-contaminated soils.
Tikhonova
E B
EB
Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, pr. Nauki 5, Pushchino, Moscow Oblast, 142290 Russia.
Ermakova
I T
IT
Slepen'kin
A V
AV
Kashparov
K I
KI
Starovoĭtov
I I
II
Boronin
A M
AM
D000421:Alcaligenes / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D003470:Culture Media; D004785:Environmental Pollutants / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D009151:Mustard Gas / Q000378:metabolism*; D012988:Soil Microbiology; D013438:Sulfhydryl Compounds / Q000378:metabolism*; D013454:Sulfoxides / Q000378:metabolism; D013864:Thioglycolates / Q000378:metabolism
D003470:Culture Media; D004785:Environmental Pollutants; D013438:Sulfhydryl Compounds; D013454:Sulfoxides; D013864:Thioglycolates; C010518:thiodiacetic acid; C047519:2,2'-thiodiethanol; D009151:Mustard Gas