Effects of a Nonoccluded Virus of
Spodoptera frugiperda
(Lepidoptera: Noctuidae) on the Development of a Parasitoid,
Cotesia marginiventris
(Hymenoptera: Braconidae)

Hamm, John J.; Nordlung, Donald A.; Marti, O. G.

doi:10.1093/ee/14.3.258

Cited by 53 publications

(40 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The transmission of viruses by parasitoids can be categorized into two means: mechanical vectors in the translocation of viruses as a result of contaminated body parts contacting host food sources (Irabagon and Brooks, 1974;Beegle and Oatman, 1975;Raimo et al, 1977;Young and Yearian, 1990;Sait et al, 1996), and biological vectors in the translocation of viruses as a result of the direct inoculation of the host via a virus-contaminated ovipositor (Beegle and Oatman, 1975;Levin et al, 1983;Hamm et al, 1985;Caballero et al, 1991). In this study, we examined the possibility of M. pulchricornis wasps as mechanical and biological vectors of SpltNPV, but no parasitoid females transmitted an effective dose of SpltNPV to other hosts.…”

Section: Discussionmentioning

confidence: 99%

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Nguyen

Nakai

Takatsuka

et al. 2005

Appl. Entomol. Zool.

View full text Add to dashboard Cite

We investigated the survival and development of the braconid parasitoid Meteorus pulchricornis in nucleopolyhedrovirus (NPV)-infected Spodoptera litura larvae. The first and second molting stages of the larvae were parasitized by M. pulchricornis and were exposed to a 95% lethal concentration (LC 95 ) and 10ϫ the LC 95 of S. litura NPV (Splt-NPV) on the first, third, and fifth day post-parasitization (dpp). Infection of the larvae with SpltNPV was deleterious to the survival and development of M. pulchricornis. The survival of M. pulchricornis in SpltNPV-infected S. litura larvae was dependent on the interval between parasitization and viral infection, as well as on the inoculation dose of SpltNPV; few parasitoid larvae emerged from infected hosts when host larvae were exposed to 10ϫ the LC 95 of Splt-NPV on 1 and 3 dpp. The fecundity of M. pulchricornis that emerged from SpltNPV-infected hosts was not affected, and these parasitoids did not transmit the virus to other hosts. The number of eggs laid by M. pulchricornis females was not significantly different between the SpltNPV-infected and non-infected larvae during the first 4 d post-infection (dpi). On the other hand, at 5 dpi, M. pulchricornis females laid significantly more eggs in non-infected larvae than in SpltNPV-infected larvae.

show abstract

Section: Discussionmentioning

confidence: 99%

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Nguyen

Nakai

Takatsuka

et al. 2005

Appl. Entomol. Zool.

View full text Add to dashboard Cite

show abstract

“…Transovarial transmission is known, as is infection through wounds, but more relevant to the hypothesis that ascoviruses evolved from iridoviruses is the recent observation that an ichneumonid wasp, Eiphosoma vitticolle, is an efficient vector of a lepidopteran iridovirus in field populations of Spodoptera frugiperda (Lopez et al, 2002). In ascoviruses, parasitic wasps are highly efficient vectors in the laboratory and field, and this appears to be the primary mode by which these viruses are transmitted (Hamm et al, 1985(Hamm et al, , 1986. Thus, transmission biology is another important link between the iridoviruses and ascoviruses of lepidopterans.…”

Section: Discussionmentioning

confidence: 99%

“…The genome is circular and, depending on the species, is from 115 to 180 kbp (Bigot et al, 1997a;Cheng et al, 1999;Federici et al, 2000). Another unusual and important feature of ascoviruses is that their principal mechanism of transmission from one lepidopteran host to another is by endoparasitic hymenopteran females during oviposition (Bigot et al, 1997bHamm et al, 1985Hamm et al, , 1986. Most invertebrate iridoviruses and ascoviruses do share one unusual property in that neither group replicates in midgut epithelial tissue (Federici, 1993).…”

Section: Introductionmentioning

confidence: 99%

Evidence for the evolution of ascoviruses from iridoviruses

Stasiak

Renault

Demattei

et al. 2003

Journal of General Virology

View full text Add to dashboard Cite

Ascoviruses (family Ascoviridae) are large, enveloped, double-stranded (ds)DNA viruses that attack lepidopteran larvae and pupae, and are unusual in that they are transmitted by parasitic wasps during oviposition. Previous comparisons of DNA polymerase sequences from vertebrate and invertebrate viruses suggested that ascoviruses are closely related to iridoviruses. This relationship was unexpected because these viruses differ markedly in virion symmetry, genome configuration and cellular pathology. Here we present evidence based on sequence comparisons and phylogenetic analyses of a greater range of ascovirus proteins and their homologues in other large dsDNA viruses that ascoviruses evolved from iridoviruses. Consensus trees for the major capsid protein, DNA polymerase, thymidine kinase and ATPase III from representative ascoviruses, algal viruses (family Phycodnaviridae), vertebrate and invertebrate iridoviruses (family Iridoviridae) and African swine fever virus (ASFV; family Asfarviridae) showed that ascovirus proteins clustered most closely with those of the lepidopteran iridovirus Chilo iridescent virus (CIV) (Invertebrate iridescent virus 6). Moreover, analysis of the presence or absence of homologues of an additional 50 proteins encoded in the genome of Spodoptera frugiperda ascovirus showed that about 40 % occurred in CIV, with lower percentages encoded by the genomes of, respectively, vertebrate iridoviruses, phycodnaviruses and ASFV. The occurrence of three of these genes in SfAV-1a but not CIV was indicative of the evolutionary differentiation of ascoviruses from invertebrate iridoviruses.

show abstract

“…They appear to be vectored among lepidopteran hosts by parasitoid wasps at oviposition (Hamm et al, 1985). The viral particles are large (130i400 nm), enveloped, allantoid to reniform or bacilliform in shape, with a complex symmetry.…”

Section: Introductionmentioning

confidence: 99%

Particle and genomic characteristics of a new member of the Ascoviridae: Diadromus pulchellus ascovirus.

Bigot¹,

Rabouille²,

Sizaret³

et al. 1997

Journal of General Virology

View full text Add to dashboard Cite

A new member of the family Ascoviridae, Diadromus pulchellus ascovirus (DpAV), has been found in the lepidopteran nymphs of Acrolepiopsis assectella parasitized by the hymenopteran wasp Diadromus pulchellus. Virions have the standard features of the ascovirus group ; each particle is about 220 nm long and 150 nm wide. They are multilayered, with two clear 7-nm-thick outer layers and one 15-nm-thick inner layer surrounding an electron-dense core (155i110 nm). However, the flattened rice-grain shape and fragility of the DpAV particles are unlike

show abstract

Effects of a Nonoccluded Virus of Spodoptera frugiperda (Lepidoptera: Noctuidae) on the Development of a Parasitoid, Cotesia marginiventris (Hymenoptera: Braconidae)

Cited by 53 publications

References 0 publications

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Interaction between a nucleopolyhedrovirus and the braconid parasitoid Meteorus pulchricornis (Hymenoptera: Braconidae) in the larvae of Spodoptera litura (Lepidoptera: Noctuidae)

Evidence for the evolution of ascoviruses from iridoviruses

Particle and genomic characteristics of a new member of the Ascoviridae: Diadromus pulchellus ascovirus.

Contact Info

Product

Resources

About