Record Display for the EPA National Library Catalog


Main Title Effect of Aerosolization on Subsequent Bacterial Survival.
Author Walter, M. V. ; Marthi, B. ; Fieland, V. P. ; Ganio, L. M. ;
CORP Author NSI Technology Services Corp., Corvallis, OR.;Corvallis Environmental Research Lab., OR.
Publisher c1992
Year Published 1992
Report Number EPA/600/J-92/343;
Stock Number PB93-106904
Additional Subjects Aerosols ; Bacteria ; Survival analysis ; Survival ; Farm crops ; Plants(Botany) ; Ambient temperature ; Humidity ; Reprints ; Pseudomonas syringae ; Erwinia herbicola
Library Call Number Additional Info Location Last
NTIS  PB93-106904 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
To determine whether aerosolization could impair bacterial survival, Pseudomonas syringae and Erwinia herbicola were aerosolized in a greenhouse, the aerosol was sampled at various distances from the site of release by using all-glass impingers, and bacterial survival was followed in the impingers for 6 h. Bacterial survival subsequent to aerosolization of P. syringae and E. herbicola was not impaired 1 m from the site of release. P. syringae aerosolized at 3 to 15 m from the site of release at a temperature of 12 deg C and a relative humidity of 80% survived 35- to 65-fold better than P. syringae released at 27 deg C and a relative humidity of 40%. No difference was observed in the survival of P. syringae and E. herbicola following aerosolization at the same temperature and relative humidity. Bacteria sprayed directly onto bean and oat plants established stable populations at comparable numbers on both plants over an 8-day period following inoculation. Bacteria that inoculated adjacent plants by drifting downwind up to 5 m were detectable at an initial population of 100 CFU/g on oats and 100,000 CFU/g on beans 2 h after the spray. However, bacterial populations on both plants were undetectable within 48 h. (Copyright (c) 1990, American Society for Microbiology.)