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EAJBSD_Volume 7_Issue 2_Pages 41-53.pdf (1.62 MB)

Ultrastructure and morphological changes in the testes of southern green stink bug Nezara viridula (Hemiptera: Pentatomidae) irradiated by gamma radiation

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posted on 2023-05-03, 20:05 authored by Hatem Mohamed Ibrahim, Lloyd Stringer, Max Suckling
The effect of gamma radiation on Nezara viridula male gonad cells was studied using transmission electron microscopy. When fourth instar nymphs were irradiated with a dose of 40 Grays by a 60Co gamma unit, the gonads from the resulting adult males were abnormal in shape and colour compared with those of non-irradiated males. The ultrastructure of the developing sperm from irradiated bugs was variable compared with sperm from non-irradiated bugs, which all appeared uniform in structure. In particular, there were structural abnormalities in the nebenkern, mitochondrial derivatives, centrioles and axonemes. Further, supernumerary mitochondrial derivatives and axonemes were observed in the flagella of sperm from irradiated males. In spite of these differences, some sperm did appear to be normal in structure, albeit very few in number. The results from high dose radiation-induced damage to sperm structure can be used to aid the development of the sterile insect technique (SIT) for control of N. viridula and other Pentatomidae.

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Rights statement

Open Access. This work is licensed under https://creativecommons.org/licenses/by/4.0/

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

Egyptian Society of Biological Sciences

Journal title

Egyptian Academic Journal of Biological Sciences. D, Histology & Histochemistry

ISSN

2090-0775

Citation

Ibrahim, H. A. M., Stringer, L. D., & Suckling, D. M. (2015). Ultrastructure and morphological changes in the testes of southern green stink bug Nezara viridula (Hemiptera: Pentatomidae) irradiated by gamma radiation. Egyptian Academic Journal of Biological Sciences. D. Histology & Histochemistry, 7(2), 41–53.

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