Teratocytes and their functions in parasitoids

Strand, Michael R.

doi:10.1016/j.cois.2014.09.005

Cited by 71 publications

(62 citation statements)

References 47 publications

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“…Teratocytes are specialised cells derived from the embryonic serosal membrane dissociation during parasitoid egg hatching in some hymenopteran endoparasitoid species (Dahlman and Vinson, ; Hotta et al., ; Strand, ). They rapidly grow in size without cell division, becoming highly polyploid and release molecules impacting physiology, development and nutritional suitability of colonised hosts (Dahlman and Vinson, ; Dahlman et al., ; Beckage and Gelman, ; Pennacchio and Strand, ).…”

Section: Discussionmentioning

confidence: 99%

Extracellular matrix degradation via enolase/plasminogen interaction: Evidence for a mechanism conserved in Metazoa

Grossi

Grimaldi

Cardone

et al. 2016

Biology of the Cell

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Section: Discussionmentioning

confidence: 99%

Extracellular matrix degradation via enolase/plasminogen interaction: Evidence for a mechanism conserved in Metazoa

Grossi

Grimaldi

Cardone

et al. 2016

Biology of the Cell

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“…Parasitoid wasps produce several factors including venom (Asgari and Rivers 2011), symbiotic double-stranded DNA viruses, the polydnaviruses (PDVs) (Strand and Burke 2014), and specialized wasp cells, teratocytes (Strand 2014). These factors benefit the survival of parasitoid larvae developing within their hosts by altering host physiology.…”

Section: Research Progress Of Parasitoid-host Interactionmentioning

confidence: 99%

Parasitoid wasps as effective biological control agents

WANG

Liu

Shi

et al. 2019

Journal of Integrative Agriculture

100

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Biological control (biocontrol) is a safe, sustainable approach that takes advantage of natural enemies such as predators, parasitic insects or pathogens to manage pests in agroecosystems. Parasitoid wasps, a very large evolutionary group of hymenopteran insects, are well-known biological control agents for arthropod pests in agricultural and forest ecosystems. Here, we summarize the recent progress on the application of parasitoid wasps in biocontrol in China for the last five years. These include species diversity of parasitoid wasps, identification of dominant parasitoid wasps associated with insect pests and biocontrol practices (three types of biological control, i.e., classical, augmentative and conservation biological control) in several Chinese agroecosystems. We then treat different mass-rearing and release technologies and the commercialization of several parasitoid wasp species. We also summarize other work that may have a potential use in biocontrol, including the effect of plant volatiles on parasitoids and recent advance in the molecular mechanisms underlying the host regulation by parasitoid wasps. Future research area and applied perspectives are also discussed, noting that advances in biocontrol technologies in Chinese agriculture informs research at the global level.

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“…Some species of endoparasitic wasps lay eggs that produce cells called teratoctyes 1 . Teratocytes originate from cellular membranes that envelope the wasp embryo, and are released into the host when the egg hatches 2 3 4 .…”

mentioning

confidence: 99%

“…Teratocytes have also been reported to alter host immune responses 1 30 . Cotesia kariyai teratocytes alter hemocyte activity and reduce encapsulation of wasp larvae during the early stages of parasitism 12 .…”

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confidence: 99%

Cotesia vestalis teratocytes express a diversity of genes and exhibit novel immune functions in parasitism

Gao

Pan

et al. 2016

Sci Rep

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Some endoparasitoid wasps lay eggs that produce cells called teratocytes. In this study, we sequenced and analyzed the transcriptome of teratocytes from the solitary endoparasitoid Cotesia vestalis (Braconidae), which parasitizes larval stage Plutella xylostella (Plutellidae). Results identified many teratocyte transcripts with potential functions in affecting host immune defenses, growth or metabolism. Characterization of teratocyte-secreted venom-like protein 8 (TSVP-8) indicated it inhibits melanization of host hemolymph in vitro, while two predicted anti-microbial peptides (CvT-def 1 and 3) inhibited the growth of bacteria. Results also showed the parasitized hosts lacking teratocytes experienced higher mortality after immune challenge by pathogens than hosts with teratocytes. Taken together, these findings indicate that C. vestalis teratocytes secrete products that alter host immune functions while also producing anti-microbial peptides with functions that help protect the host from infection by other organisms.

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Teratocytes and their functions in parasitoids

Cited by 71 publications

References 47 publications

Extracellular matrix degradation via enolase/plasminogen interaction: Evidence for a mechanism conserved in Metazoa

Extracellular matrix degradation via enolase/plasminogen interaction: Evidence for a mechanism conserved in Metazoa

Parasitoid wasps as effective biological control agents

Cotesia vestalis teratocytes express a diversity of genes and exhibit novel immune functions in parasitism

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