Hemogram study and effect of thermal Stresses on abundance of immunocytes in larvae of Goat Moth, Cossus cossus (Lepidoptera: Cossidae)

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AJAMHASSANI M.; POURALI Z.

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Journal Paper

Paper Information

Journal: Iranian Journal of Forests and Rangelands Protection Research Year:2020 | Volume:17 | Issue:2 (34) Page(s): 239-250

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Information Journal Paper

Title

Hemogram study and effect of thermal Stresses on abundance of immunocytes in larvae of Goat Moth, Cossus cossus (Lepidoptera: Cossidae)

Author(s)

AJAMHASSANI M. | POURALI Z. | Issue Writer Certificate

Keywords

Goat MothQ1

hemocytesQ1

thermal stressQ1

ImmunologyQ1

Abstract

The introduction of pathogens, infections and environmental pollutants into the insect hemolymphs, thermal stresses and nutritional diet changes, affect the insect immune system. Insect immunity consists of the components among which the hemocytes are the main ones. In the present study, the morphology and changes in density of the hemocytes in the hemolymph of the Cossus cossus L. were studied against thermal stresses. The hemocytes of all larval stages of C. cossus were examined by Giemsa and the response of these cells was evaluated at temperatures of 4 ° C and 30 ° C. Five identified types of hemocytes in this insect were; Prohemocyte, Plasmatocyte, Granulocyte, Oenocytoide and Spherulocyte. All hemocyte types were detected in each stage but frequency of them in each stage was different. Total Hemocyte Count showed that by increasing larval instars and body size, hemocyte rate increased gradually. Differential hemocyte counts indicated that plasmotocytes and granulocytes were the most abundant in the fifth and sixth instar larvae compared to other growth stages. So, the fifth and sixth instars larvae have the highest blood volume and hemocytes count. Granulocytes showed the highest abundance variation under heat and cold stresses, and plasmatocytes also decreased significantly under the influence of cold stress. It seems that understanding the hemocyte characteristics of this pest and the frequency of immunocyte changes in response to thermal stresses can be considered as an introduction on immunological studies of this pest. Certainly, further investigation is needed to study the interaction of the immune system of C. cossus with pathogens and to evaluate the efficacy of microbiological control.

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APA: Copy

AJAMHASSANI, M., & POURALI, Z.. (2020). Hemogram study and effect of thermal Stresses on abundance of immunocytes in larvae of Goat Moth, Cossus cossus (Lepidoptera: Cossidae). FOREST AND RANGE PROTECTION RESEARCH, 17(2 (34) ), 239-250. SID. https://sid.ir/paper/407272/en

Vancouver: Copy

AJAMHASSANI M., POURALI Z.. Hemogram study and effect of thermal Stresses on abundance of immunocytes in larvae of Goat Moth, Cossus cossus (Lepidoptera: Cossidae). FOREST AND RANGE PROTECTION RESEARCH[Internet]. 2020;17(2 (34) ):239-250. Available from: https://sid.ir/paper/407272/en

IEEE: Copy

M. AJAMHASSANI, and Z. POURALI, “Hemogram study and effect of thermal Stresses on abundance of immunocytes in larvae of Goat Moth, Cossus cossus (Lepidoptera: Cossidae),” FOREST AND RANGE PROTECTION RESEARCH, vol. 17, no. 2 (34) , pp. 239–250, 2020, [Online]. Available: https://sid.ir/paper/407272/en

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