Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites

In this study, five morphological types of circulating hemocytes were recognized in the hemolymph of the adult sunn pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae), namely prohemocytes, plasmatocytes, granulocytes, adipohemocytes, and oenocytoids. The effects of the secondary metabolit...

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Autores principales: Zibaee, Arash, Bandani, Ali Reza, Talaei-Hassanlouei, Reza, Malagoli, Davide
Formato: Online Artículo Texto
Lenguaje:English
Publicado: University of Wisconsin Library 2011
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3391913/
https://www.ncbi.nlm.nih.gov/pubmed/22233481
http://dx.doi.org/10.1673/031.011.13801
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author Zibaee, Arash
Bandani, Ali Reza
Talaei-Hassanlouei, Reza
Malagoli, Davide
author_facet Zibaee, Arash
Bandani, Ali Reza
Talaei-Hassanlouei, Reza
Malagoli, Davide
author_sort Zibaee, Arash
collection PubMed
description In this study, five morphological types of circulating hemocytes were recognized in the hemolymph of the adult sunn pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae), namely prohemocytes, plasmatocytes, granulocytes, adipohemocytes, and oenocytoids. The effects of the secondary metabolites of the entomopathogenic fungus Beauveria bassiana on cellular immune defenses of Eurygaster integriceps were investigated. The results showed that the fungal secondary metabolites inhibited phagocytic activity of E. integriceps hemocytes and hampered nodule formation. A reduction of phenoloxidase activity was also observed. The data suggest that B. bassiana produce secondary metabolites that disable several immune mechanisms allowing the fungus to overcome and then kill its host. This characteristic makes B. bassiana a promising model for biological control of insect pests such as E. integriceps.
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spelling pubmed-33919132012-07-09 Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites Zibaee, Arash Bandani, Ali Reza Talaei-Hassanlouei, Reza Malagoli, Davide J Insect Sci Article In this study, five morphological types of circulating hemocytes were recognized in the hemolymph of the adult sunn pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae), namely prohemocytes, plasmatocytes, granulocytes, adipohemocytes, and oenocytoids. The effects of the secondary metabolites of the entomopathogenic fungus Beauveria bassiana on cellular immune defenses of Eurygaster integriceps were investigated. The results showed that the fungal secondary metabolites inhibited phagocytic activity of E. integriceps hemocytes and hampered nodule formation. A reduction of phenoloxidase activity was also observed. The data suggest that B. bassiana produce secondary metabolites that disable several immune mechanisms allowing the fungus to overcome and then kill its host. This characteristic makes B. bassiana a promising model for biological control of insect pests such as E. integriceps. University of Wisconsin Library 2011-10-19 /pmc/articles/PMC3391913/ /pubmed/22233481 http://dx.doi.org/10.1673/031.011.13801 Text en © 2011 http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Zibaee, Arash
Bandani, Ali Reza
Talaei-Hassanlouei, Reza
Malagoli, Davide
Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites
title Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites
title_full Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites
title_fullStr Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites
title_full_unstemmed Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites
title_short Cellular Immune Reactions of the Sunn Pest, Eurygaster integriceps, to the Entomopathogenic Fungus, Beauveria bassiana and Its Secondary Metabolites
title_sort cellular immune reactions of the sunn pest, eurygaster integriceps, to the entomopathogenic fungus, beauveria bassiana and its secondary metabolites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3391913/
https://www.ncbi.nlm.nih.gov/pubmed/22233481
http://dx.doi.org/10.1673/031.011.13801
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