Author | Dos Passos, Eliana M. | |
Author | Wanderley-Teixeira, Valéria | |
Author | Marques, Edmilson J. | |
Author | Teixeira, Álvaro A. C. | |
Author | Brayner, Fábio A. | |
Access date | 2017-11-14T13:57:34Z | |
Available date | 2017-11-14T13:57:34Z | |
Document date | 2014 | |
Citation | Dos Passos, Eliana M., Valéria Wanderley-Teixeira, Edmilson J. Marques, Álvaro A. C. Teixeira, e Fábio A. Brayner. “Cotesia Flavipes (CAM) (Hymenoptera: Braconidae) Supresses Immune Responses in Diatraea Flavipennella (BOX) (Lepidoptera: Crambidae)”. Anais Da Academia Brasileira De Ciencias 86, nº 4 (dezembro de 2014): 2013–24. | pt_BR |
ISSN | 1678-2690 | pt_BR |
URI | https://www.arca.fiocruz.br/handle/icict/23171 | |
Language | eng | pt_BR |
Rights | open access | pt_BR |
MeSH | Host-Parasite Interactions | pt_BR |
MeSH | immunology | pt_BR |
MeSH | Hymenoptera | pt_BR |
MeSH | physiology | pt_BR |
MeSH | Lepidoptera | pt_BR |
MeSH | parasitology | pt_BR |
Subject in Portuguese | Interações Hospedeiro-Parasita | pt_BR |
Subject in Portuguese | Himenópteros | pt_BR |
Subject in Portuguese | Lepidópteros | pt_BR |
Subject in Portuguese | larva | pt_BR |
Title | Cotesia flavipes (CAM) (Hymenoptera: Braconidae) supresses immune responses in Diatraea flavipennella (BOX) (Lepidoptera: Crambidae) | pt_BR |
Type | Article | pt_BR |
DOI | 10.1590/0001-3765201420130393 | |
Abstract | The present research aimed to elucidate which aspects of immune responses in Diatraea flavipennella are suppressed by the parasitoid Cotesia flavipes, thus, ensuring parasitism success. We investigated the presence of apoptosis in fat body cells through the TUNEL technique. According to the results, reduced levels of nitric oxide and phenoloxidase activity were observed in larvae parasitized for three days, and reduced total number of hemocytes, after three and seven days. An increase in plasmatocytes and decrease in spherulocytes numbers were observed in the differential count on the third day of parasitism. The number of melanized microspheres in parasitized larvae was low and indicated less intense melanization. The ultrastructural analysis confirmed the immunosuppressive effect of C. flavipes on the encapsulation response of D. flavipennella because only the formation of hemocytes capsules, adhered to the microspheres' surface, was evidenced in non-parasitized caterpillars. The effect of parasitism was also recorded on the third day with the presence of hemocytes and apoptosis in fat body cells, including aspects of degeneration in the latter. We concluded that C. flavipes suppresses cellular and humoral immunological responses in D. flavipennella and drastically affects the host's fat tissue. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Aggeu Magalhães. Recife, PE, Brasil. | pt_BR |
Subject | Host-Parasite Interactions | pt_BR |
Subject | Lepidoptera | pt_BR |
Subject | Hymenoptera | pt_BR |
Subject | Animals | pt_BR |
Subject | Fat Body | pt_BR |
Subject | Female | pt_BR |
Subject | Larva | pt_BR |
Subject | Monophenol Monooxygenase | pt_BR |
Subject | Nitric Oxide | pt_BR |