受伽玛辐射影响的白头金蝇的生殖潜能和胚胎致命性(Wiedemann 1819)

Ahmed Elnaggar, A. Bream, A. Gabarty, Ahmed Shehata
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引用次数: 0

摘要

白色锥虫是细菌、病毒、蠕虫等多种致病菌传播给人类和动物的主要机械媒介,并在动物中引起蝇蛆病。本研究旨在探讨伽玛辐射对白头棘虫生殖潜能和胚胎致死性的影响。结果表明,不同剂量的γ辐射照射下,蛹产卵数随剂量的增加而减少。此外,发现未孵化卵的百分比是剂量依赖性的,即随着所使用的伽马辐照剂量的增加而增加。在高剂量(10和15戈瑞)下,当受辐照的雌性与未受辐照的雄性杂交时,卵子数量减少最多。在15 Gy和10 Gy时,未孵化卵率分别为76.6和66.8。与未治疗组相比,伽玛辐射导致雌性白头锥体的不育率逐渐增加。所有组在20 Gy时均达到完全不育(100.0%)。经辐照的雌虫与未辐照的雄虫杂交,不育指数为96.3%。此外,伽马辐射诱导的卵致死性逐渐增加,当未受辐射的雌性与受辐射的雄性交配时,估计LD 50值为9.3598 Gy,而受辐射的雌性与未受辐射的雄性交配时,其卵致死性为10.6257 Gy。雄性和雌性辐照后的ld50值分别为3.603 Gy。一般来说,雌性白肱二头虫比雄性白肱二头虫对辐射更敏感。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reproductive Potential and Embryonic Lethality of The Blowfly, Chrysomya albiceps (Wiedemann 1819)Influenced by Gamma Radiation
Chrysomya albiceps play a major role as a mechanical vector for plentiful pathogens to humans and animals such as bacteria, viruses, and helminths, as well as causing myiasis in animals. The present study aimed at investigating the effect of gamma radiation on the reproductive potential and embryonic lethality of C. albiceps. Results showed that the number of eggs laid by C. albiceps females resulted from pupae irradiated with different doses of gamma radiation decreased as the dose increased. Also, the non-hatching eggs %was found to be dose-dependent i.e., increased as the dose of the gamma irradiation used increased.The highest reduction in the number of eggs occurred at high doses (10 and 15 Gy) when irradiated females were crossed with non-irradiated males. Non-hatching egg % increased to record 76.6 and 66.8 at 15 and 10 Gy when irradiated females crossed with irradiated males. Gamma radiation resulted in a progressive increase in the sterility % of C. albiceps females as compared with the untreated group. Complete sterility (100.0%) was attained by 20 Gy for all groups. The sterility index was recorded at 96.3% when irradiated females crossed with non-irradiated males.In addition, gamma radiation-induced a progressive increase in egg lethality giving an estimated LD 50 value of 9.3598 Gy when non-irradiated females mated with irradiated males, compared with 10.6257 Gy for egg-lethality laid by irradiated females mated with non-irradiated males. However, the LD 50 value was 3.603 Gy when both males and females were irradiated, respectively. Generally, C. albiceps females were more radiosensitive than their male counterparts.
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