A STUDY OF SOME EFFECTS OF GAMMA RADIATION ON THE ADULTS AND EGGS OF AEDES AEGYPTI

Technical Report · Thu Jul 10 04:00:00 EDT 1958

OSTI ID:4260887

Terzian, L A; Stahler, N

The studies reported were undertaken to evaluate some of the biological effects produced by gamma radiation in the mosquitos Aedes aegypti. It has been shown that egg production was reduced either by mating normal females with males which had been exposed 8 or 15 days previously to dosages of about 30,000 r, or by irradiating females with dosages in excess of 2,500 r (with no oviposition at 10,000 r). Reduction in egg hatch was proportionate to dosages in excess of 2,500 r, applied to either adult males or females, with no eggs hatching at 10,000 r. Egg hatch was less if females had been inseminated prior to exposure than if insemination had occurred after irradiation. It required dosages of 10,000 r to inhibit egg production in females exposed 4 hours after a blood meals and 100,000 r to caase the same effect in mosquitoes which had had a blood meal 42 hours prcviously. Viable, fertile F-1 progeny could be produced only from females which had been irradiated at dosages less than 5,000 r. Eggs were found to be most sensitive to irradiation during the prehatching periods the LD/sub 50/ varying from 800 r to 7,500 r, and most resistant when 3 to 5 days olds the LD/ sub 50/ ranging from 30,000 r to 75,000 r. Progeny could be reared only from eggs which had been irradiated at dosages less than 2,500 r. (auth)

• Research Organization: Naval Medical Research Inst., Bethesda, Md.
• NSA Number: NSA-13-014145
• OSTI ID: 4260887
• Report Number(s): NM-52-01-00.05.01; AD-205978
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AEDES
AGE
BIOLOGY AND MEDICINE
BLOOD
DIET
EGGS
EMBRYOS
GAMMA RADIATION
INSECTS
LETHAL DOSE
MOSQUITOES
PHYSIOLOGY
QUANTITY RATIO
RADIATION DOSES
RADIATION EFFECTS
RADIOSENSITIVITY
REPRODUCTION
SEX
VARIATIONS