Parasitoid-mediated transmission of an iridescent virus
We examined the interaction between an invertebrate iridescent virus (IIV) isolated from Spodoptera frugiperda (J.E. Smith) and the solitary ichneumonid endoparasitoid Eiphosoma vitticolle Cresson. In choice tests, parasitoids examined and stung significantly more virus infected than healthy larvae, apparently due to a lack of defense reaction in virus infected hosts. Parasitoid-mediated virus transmission was observed in 100% of the female parasitoids that stung a virus infected host in the laboratory.
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| Subjects: | Spodoptera frugiperda, Iridovirus, Eiphosoma vitticolle, Parasitoides, Control biológico de plagas, |
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KOHA-OAI-ECOSUR:389172024-03-12T13:01:36ZParasitoid-mediated transmission of an iridescent virus López Ortega, Maurilio Doctor autor/a 15966 Rojas, Julio C. Doctor autor/a 5426 Vandame, Rémy Doctor autor/a 3181 Williams, Trevor Doctor autor/a 5446 textengWe examined the interaction between an invertebrate iridescent virus (IIV) isolated from Spodoptera frugiperda (J.E. Smith) and the solitary ichneumonid endoparasitoid Eiphosoma vitticolle Cresson. In choice tests, parasitoids examined and stung significantly more virus infected than healthy larvae, apparently due to a lack of defense reaction in virus infected hosts. Parasitoid-mediated virus transmission was observed in 100% of the female parasitoids that stung a virus infected host in the laboratory.Each female parasitoid transmitted the virus to an average (+/-SE) of 3.7+/-0.3 larvae immediately after stinging an infected larva. Caged field experiments supported this result; virus transmission to healthy larvae only occurred in cages containing infected hosts (as inoculum) and parasitoids (as vectors). The virus was highly detrimental to parasitoid development because of premature host death and lethal infection of the developing endoparasitoid. Female parasitoids that emerged from virus infected hosts did not transmit the virus to healthy hosts. We suggest that the polyphagous habits of many noctuid parasitoids combined with the catholic host range of most IIVs may represent a mechanism for the transmission of IIVs between different host species in the field.We examined the interaction between an invertebrate iridescent virus (IIV) isolated from Spodoptera frugiperda (J.E. Smith) and the solitary ichneumonid endoparasitoid Eiphosoma vitticolle Cresson. In choice tests, parasitoids examined and stung significantly more virus infected than healthy larvae, apparently due to a lack of defense reaction in virus infected hosts. Parasitoid-mediated virus transmission was observed in 100% of the female parasitoids that stung a virus infected host in the laboratory.Each female parasitoid transmitted the virus to an average (+/-SE) of 3.7+/-0.3 larvae immediately after stinging an infected larva. Caged field experiments supported this result; virus transmission to healthy larvae only occurred in cages containing infected hosts (as inoculum) and parasitoids (as vectors). The virus was highly detrimental to parasitoid development because of premature host death and lethal infection of the developing endoparasitoid. Female parasitoids that emerged from virus infected hosts did not transmit the virus to healthy hosts. We suggest that the polyphagous habits of many noctuid parasitoids combined with the catholic host range of most IIVs may represent a mechanism for the transmission of IIVs between different host species in the field.Spodoptera frugiperdaIridovirusEiphosoma vitticolleParasitoidesControl biológico de plagasJournal of Invertebrate PathologyDisponible para usuarios de ECOSUR con su clave de acceso |
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Spodoptera frugiperda Iridovirus Eiphosoma vitticolle Parasitoides Control biológico de plagas Spodoptera frugiperda Iridovirus Eiphosoma vitticolle Parasitoides Control biológico de plagas |
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Spodoptera frugiperda Iridovirus Eiphosoma vitticolle Parasitoides Control biológico de plagas Spodoptera frugiperda Iridovirus Eiphosoma vitticolle Parasitoides Control biológico de plagas López Ortega, Maurilio Doctor autor/a 15966 Rojas, Julio C. Doctor autor/a 5426 Vandame, Rémy Doctor autor/a 3181 Williams, Trevor Doctor autor/a 5446 Parasitoid-mediated transmission of an iridescent virus |
| description |
We examined the interaction between an invertebrate iridescent virus (IIV) isolated from Spodoptera frugiperda (J.E. Smith) and the solitary ichneumonid endoparasitoid Eiphosoma vitticolle Cresson. In choice tests, parasitoids examined and stung significantly more virus infected than healthy larvae, apparently due to a lack of defense reaction in virus infected hosts. Parasitoid-mediated virus transmission was observed in 100% of the female parasitoids that stung a virus infected host in the laboratory. |
| format |
Texto |
| topic_facet |
Spodoptera frugiperda Iridovirus Eiphosoma vitticolle Parasitoides Control biológico de plagas |
| author |
López Ortega, Maurilio Doctor autor/a 15966 Rojas, Julio C. Doctor autor/a 5426 Vandame, Rémy Doctor autor/a 3181 Williams, Trevor Doctor autor/a 5446 |
| author_facet |
López Ortega, Maurilio Doctor autor/a 15966 Rojas, Julio C. Doctor autor/a 5426 Vandame, Rémy Doctor autor/a 3181 Williams, Trevor Doctor autor/a 5446 |
| author_sort |
López Ortega, Maurilio Doctor autor/a 15966 |
| title |
Parasitoid-mediated transmission of an iridescent virus |
| title_short |
Parasitoid-mediated transmission of an iridescent virus |
| title_full |
Parasitoid-mediated transmission of an iridescent virus |
| title_fullStr |
Parasitoid-mediated transmission of an iridescent virus |
| title_full_unstemmed |
Parasitoid-mediated transmission of an iridescent virus |
| title_sort |
parasitoid-mediated transmission of an iridescent virus |
| work_keys_str_mv |
AT lopezortegamauriliodoctorautora15966 parasitoidmediatedtransmissionofaniridescentvirus AT rojasjuliocdoctorautora5426 parasitoidmediatedtransmissionofaniridescentvirus AT vandameremydoctorautora3181 parasitoidmediatedtransmissionofaniridescentvirus AT williamstrevordoctorautora5446 parasitoidmediatedtransmissionofaniridescentvirus |
| _version_ |
1794790957099515904 |