Accession Number:

AD0692652

Title:

STABILITY OF PIGMENTED FUNGI STEMPHYLIUM BOTRYOSUM WALLR. AND CLADOSPORIUM CLADOSPORIOIDES (FRIES) deVRIES TO GAMMA-RADIATION,

Descriptive Note:

Corporate Author:

ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C

Report Date:

1969-08-12

Pagination or Media Count:

12.0

Abstract:

Irradiation of fungi with gamma-rays has shown that the most sensitive of the five strains tested is the non-pigmented form Gliocladium Fimbriatum Gilm a. Abbot. All pigmented dark-colored strains of fungi were more resistant to gamma-rays. Among the pigmented dark-colored fungi, a greater difference in resistance to gamma-rays is noted among species belonging to different genuses than among species isolated from various ecological conditions. The more resistant strains are those of the species Stemphylium botryosum Wallr. and the less resistant are strains of the species Cladosporium Cladosporioides Fries deVries. Of two strains of the species, the more resistant forms are from high-altitude soils and the less resistant forms are isolated from flatland soils of the podzolic zone. The predominance of dark-colored fungi and high-altitude soils may be explained by their higher resistance to ionizing radiation than non-pigmented forms. Author

Subject Categories:

  • Radiobiology
  • Microbiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE