Effect of gamma radiation on pH and thermostability of phenylalanyl-tRNA synthetases of cotton seeds
Journal Article
·
· Radiobiology (USSR) (Engl. Transl.); (United States)
OSTI ID:5237239
The two forms of phenylalanyl-tRNA synthetase (E/sub 1/ and E/sub 2/) were isolated from seedlings grown from seeds exposed to 50 kR radiation and incubated at different pH values. The pH sensitivity of both enzymes increased sharply under the influence of radiation. Experiments on the effects of high temperature on stability of enzymes showed that E/sub 2/ was more thermolabile than E following exposure to radiation. It was concluded that sensitivity of the enzymes to pH and thermolability increased under the influence of radiation. (HLW)
- Research Organization:
- Inst. of Biochemistry, Tashkent
- OSTI ID:
- 5237239
- Journal Information:
- Radiobiology (USSR) (Engl. Transl.); (United States), Journal Name: Radiobiology (USSR) (Engl. Transl.); (United States) Vol. 17:2; ISSN RADBA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560141* -- Radiation Effects on Plants-- Basic Studies-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOMASS
COTTON PLANTS
ELECTROMAGNETIC RADIATION
ENERGY SOURCES
ENZYMES
GAMMA RADIATION
IONIZING RADIATIONS
LIGASES
PH VALUE
PLANTS
RADIATION EFFECTS
RADIATIONS
RADIOSENSITIVITY EFFECTS
RENEWABLE ENERGY SOURCES
SEEDS
TEMPERATURE EFFECTS
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOMASS
COTTON PLANTS
ELECTROMAGNETIC RADIATION
ENERGY SOURCES
ENZYMES
GAMMA RADIATION
IONIZING RADIATIONS
LIGASES
PH VALUE
PLANTS
RADIATION EFFECTS
RADIATIONS
RADIOSENSITIVITY EFFECTS
RENEWABLE ENERGY SOURCES
SEEDS
TEMPERATURE EFFECTS