Immune Response of Mormon Crickets That Survived Infection by Beauveria bassiana
Beauveria bassiana (Fungi: Ascomycota) is an entomopathogenic fungus that serves as a biological control agent of Mormon crickets Anabrus simplex Haldeman (Orthoptera: Tettigoniidae) and other grasshopper pests. To measure the dose-dependent response of Mormon crickets to fungal attack, we applied...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Psyche: A Journal of Entomology |
| Online Access: | http://dx.doi.org/10.1155/2011/849038 |
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| author | Robert B. Srygley Stefan T. Jaronski |
| author_facet | Robert B. Srygley Stefan T. Jaronski |
| author_sort | Robert B. Srygley |
| collection | DOAJ |
| description | Beauveria bassiana (Fungi: Ascomycota) is an entomopathogenic fungus that serves as a biological control agent of Mormon crickets Anabrus simplex Haldeman (Orthoptera: Tettigoniidae) and other grasshopper pests. To measure the dose-dependent response of Mormon crickets to fungal attack, we applied B. bassiana strain GHA topically to adults using doses of 5.13 × 104 to 1.75 × 106 conidia in sunflower oil, with oil only as a control. After three weeks, we assessed the survivors' hemolymph for fungal cells, active phenoloxidase (PO), and lysozyme. Mortality increased and body mass of survivors decreased with conidial dose. survivors' PO activity was elevated to the same level independent of dose. Those with fungal cells visible in their hemolymph did not differ in PO activity from those with clear hemolymph. We conclude that circulating PO may be an important enzymatic defense against Beauveria infection and that it is associated with attempted clearing of Beauveria blastospores and hyphae from Mormon cricket hemolymph. |
| format | Article |
| id | doaj-art-f9949a0f144043c98474398ff47e1bba |
| institution | Kabale University |
| issn | 0033-2615 1687-7438 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Psyche: A Journal of Entomology |
| spelling | doaj-art-f9949a0f144043c98474398ff47e1bba2025-02-03T06:42:14ZengWileyPsyche: A Journal of Entomology0033-26151687-74382011-01-01201110.1155/2011/849038849038Immune Response of Mormon Crickets That Survived Infection by Beauveria bassianaRobert B. Srygley0Stefan T. Jaronski1Northern Plains Agricultural Research Laboratory, USDA-Agricultural Research Service, 1500 N. Central Avenue, Sidney, MT 59270, USANorthern Plains Agricultural Research Laboratory, USDA-Agricultural Research Service, 1500 N. Central Avenue, Sidney, MT 59270, USABeauveria bassiana (Fungi: Ascomycota) is an entomopathogenic fungus that serves as a biological control agent of Mormon crickets Anabrus simplex Haldeman (Orthoptera: Tettigoniidae) and other grasshopper pests. To measure the dose-dependent response of Mormon crickets to fungal attack, we applied B. bassiana strain GHA topically to adults using doses of 5.13 × 104 to 1.75 × 106 conidia in sunflower oil, with oil only as a control. After three weeks, we assessed the survivors' hemolymph for fungal cells, active phenoloxidase (PO), and lysozyme. Mortality increased and body mass of survivors decreased with conidial dose. survivors' PO activity was elevated to the same level independent of dose. Those with fungal cells visible in their hemolymph did not differ in PO activity from those with clear hemolymph. We conclude that circulating PO may be an important enzymatic defense against Beauveria infection and that it is associated with attempted clearing of Beauveria blastospores and hyphae from Mormon cricket hemolymph.http://dx.doi.org/10.1155/2011/849038 |
| spellingShingle | Robert B. Srygley Stefan T. Jaronski Immune Response of Mormon Crickets That Survived Infection by Beauveria bassiana Psyche: A Journal of Entomology |
| title | Immune Response of Mormon Crickets That Survived Infection by Beauveria bassiana |
| title_full | Immune Response of Mormon Crickets That Survived Infection by Beauveria bassiana |
| title_fullStr | Immune Response of Mormon Crickets That Survived Infection by Beauveria bassiana |
| title_full_unstemmed | Immune Response of Mormon Crickets That Survived Infection by Beauveria bassiana |
| title_short | Immune Response of Mormon Crickets That Survived Infection by Beauveria bassiana |
| title_sort | immune response of mormon crickets that survived infection by beauveria bassiana |
| url | http://dx.doi.org/10.1155/2011/849038 |
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