TEMPERATURE EFFECTS ON LETHAL MUTATION RATES OF HABROBRACON OoCYTES X- IRRADIATED IN FIRST MEIOTIC METAPHASE

Journal Article · Sat Jul 01 04:00:00 EDT 1961 · Genetics (U.S.)

OSTI ID:4843775

Whiting, A R

Unmated females of Habrobracon were irradiated with 1263 and 1444r at high and low temperature before, during, and/or after irradiation. A significant lowering of lethal changes induced in oocytes x irradiated in first meiotic metaphase (LD 50 about 400r) at low temperatures before and after exposure as measured by hatchability of unfertilized eggs was observed. Low temperature during irradiation (l 1/2 - 2 minutes) did not significantly change survival rate although there is a suggestion of a tendency toward increased lethality. Theories are discussed as to the cause or causes of differential sensitivity of cells and the relation of the sensitivity to oxygen and temperature. (anth)

• Research Organization: Oak Ridge National Lab., Tenn.; Univ. of Pennsylvania, Philadelphia
• NSA Number: NSA-15-027434
• OSTI ID: 4843775
• Journal Information: Genetics (U.S.), Journal Name: Genetics (U.S.) Vol. Vol: 46; ISSN GENTA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANIMAL CELLS
BIOLOGY AND MEDICINE
EGGS
INSECTS
LETHAL DOSE
LIFETIME
MUTATIONS
OXYGEN
RADIATION DOSES
RADIATION EFFECTS
RADIOSENSITIVITY
TEMPERATURE
WASPS
X RADIATION