Host regulation and release of parasitism-specific proteins in the system Toxoneuron nigriceps-Heliothis virescens.

@article{Cnsoli2005HostRA,
  title={Host regulation and release of parasitism-specific proteins in the system Toxoneuron nigriceps-Heliothis virescens.},
  author={Fernando Lu{\'i}s C{\^o}nsoli and Sandra L. Brandt and Thomas A Coudron and S. Bradleich Vinson},
  journal={Comparative biochemistry and physiology. Part B, Biochemistry \& molecular biology},
  year={2005},
  volume={142 2},
  pages={
          181-91
        }
}
The braconid wasp Toxoneuron nigriceps induced qualitative and quantitative changes in the protein composition of the moth Heliothis virescens host hemolymph. Total protein concentration was found to be higher in parasitized host 4 days after parasitism as compared to control hosts, mainly due to changes in a particular group of proteins. Host proteins with a molecular mass of 173 and 72 kDa were found in higher levels in the hemolymph of parasitized larvae as control hosts approached pupation… Expand
Changes in the hemolymph and fat body metabolites of Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae) parasitized by Cotesia flavipes (Cameron) (Hymenoptera: Braconidae)
TLDR
Changes in the biochemical composition of parasitized and control larvae at different stages of parasitoid development are described to gain information on C. flavipes host regulation and on its quantitative immature nutritional requirements. Expand
The impact of co-infection by a nucleopolyhedrovirus and the endoparasitoid Microplitis pallidipes Szepligeti on the protective enzymes in hemolymph of Spodoptera exigua
TLDR
It was concluded that joint and separate parasitism and NPV infection promoted the activities of protective enzymes, and that the parasitism inhibited the CAT activity induced byNPV infection. Expand
Characterization of a Toxoneuron nigriceps (Viereck) (Hymenoptera: Braconidae) – derived chitinase and its potential for pest control
TLDR
The activity of the putative chitinase from teratocytes of T. nigriceps produced using the Escherichia coli expression system and its potential to control H. virescens larvae when expressed into transgenic tobacco plants are characterized. Expand
Effects of Scleroderma sichuanensis Xiao (Hymenoptera: Bethylidae) venom and parasitism on nutritional content regulation in host Tenebrio molitor L. (Coleoptera: Tenebrionidae)
TLDR
The findings suggest that lipid catabolism might be accelerated, and that lipid biosynthesis might be inhibited, when host pupae are parasitized or injected with venom, and the strong similarities between the two treatments suggest that venom injection is a major factor responsible for changes in host nutrient content. Expand
The effect of nucleopolyhedrovirus infection and/or parasitism by Microplitis pallidipes on hemolymph proteins, sugars, and lipids in Spodoptera exigua larvae
TLDR
It is concluded that Parasitization inhibited protein mobilization but stimulated sugar mobilization in host hemolymph, and promoted lipid mobilization in the host body, while Spodoptera exigua NPV infection stimulated protein mobilization induced by parasitization but inhibited sugar mobilizationinduced by parasitism. Expand
Changes in the Hemolymph Metabolites of Epiphyas postvittana parasitized by Meteorus ictericus
TLDR
The parasitoid female injects proteins and lipids into the host which are then utilized by the developing parasitoids, making a more stable internal environment for he developing Parasitoid egg. Expand
Proteomes of the aphid Macrosiphum euphorbiae in its resistance and susceptibility responses to differently compatible parasitoids.
TLDR
Proteomics compares responses of the same host, the aphid Macrosiphum euphorbiae, challenged by a well-adapted parasitoid Aphidius nigripes or by a less adapted relative, aphidius ervi, to provide an integrative basis for consolidating knowledge of host-parasitoid interactions. Expand
Functional analysis of a fatty acid binding protein produced by Aphidius ervi teratocytes.
TLDR
Data indicate that the proteins produced by A. ervi teratocytes may play complementary roles in the nutritional exploitation of the host, and a fatty acid binding protein (Ae-FABP) appears to act essentially as a vector in the host haemolymph, transferring FAs from the digestion sites of host lipids to the growing parasitoid larvae. Expand
Characterization of a cDNA encoding a putative chitinase from teratocytes of the endoparasitoid Toxoneuron nigriceps
TLDR
The cDNA of a teratocyte‐secreted chitinase and its expression during parasitoid development is described and discussed, and its putative role in this host–parasitoid association is discussed. Expand
Identification and characterization of small non-coding RNA molecules transcribed in Heliothis virescens (Fabricius) (Lepidoptera: Noctuidae) larvae parasitized by Toxoneuron nigriceps (Viereck) (Hymenoptera: Braconidae).
TLDR
The presence of authentic miRNA species in the library, as well as the finding of a correct size range in the authors' cloned cDNA sequences, indicated that the non-coding portion of the TnBV genome is extensively transcribed in host haemocytes. Expand
...
1
2
3
4
...

References

SHOWING 1-10 OF 51 REFERENCES
Effects of parasitism by the braconid wasp Cotesia congregata on host hemolymph proteins of the tobacco hornworm, Manduca sexta.
TLDR
Analysis of hemolymph plasma showed that in terminal stagefifth instar host larvae, the titers of serpins and arylphorin were dramatically reduced relative to the levels of these proteins detected in nonparasitized gate II fifth instar larvae of the same age, confirming earlier studies describing the presence of novel proteins in last instar hosts. Expand
Growth and development of Cardiochiles nigriceps viereck (hymenoptera, braconidae) larvae and their synchronization with some changes of the hemolymph composition of their host, Heliothis virescens (F.) (Lepidoptera, Noctuidae)
TLDR
The results suggest that host proteins and/or some factor(s) associated with them may play a role in parasitoid growth and development. Expand
An abundantly expressed hemolymph glycoprotein isolated from newly parasitized Manduca sexta larvae is a polydnavirus gene product.
TLDR
This report constitutes the first evidence that a specific protein isolated from a parasitized host insect is a wasp polydnavirus gene product. Expand
Metabolic and symbiotic interactions in amino acid pools of the pea aphid, Acyrthosiphon pisum, parasitized by the braconid Aphidius ervi.
TLDR
Tyrosine accumulation was the most prominent parasitoid-induced alteration, with a fourfold increase over control levels registered on day 6, and the amino acid biosynthetic capacity of Buchnera was unaltered, or even enhanced for the phenolic pool, and contributed greatly to the definition and maintainance of host free amino acid pools. Expand
Characterization of a 212kD protein, released into the host by the larva of the endoparasitoid Chelonus inanitus (Hymenoptera, Braconidae).
TLDR
It is shown that a 212kD protein is the predominant protein released in vitro by late first instar parasitoids, and this protein does not accumulate anywhere in the parasitoid body. Expand
Biochemical and developmental alterations of Heliothis virescens (F.) (lepidoptera, noctuidae) larvae induced by the endophagous parasitoid Cardiochiles nigriceps viereck (Hymenoptera, braconidae)
TLDR
The data suggest that the host ecdysteroid hormones are not directly involved in the regulation of the parasitoid molt, although high juvenile hormone (JH) levels probably prevent it. Expand
Juvenile hormone synthesis, metabolism, and resulting haemolymph titre in Heliothis virescens larvae parasitized by Toxoneuron nigriceps.
TLDR
The higher JH titres observed in parasitized larvae during the early fifth instar may contribute to their developmental arrest and a more comprehensive physiological model accounting for host-parasitoid interactions is proposed. Expand
Effect of parasitism by Cardiochiles nigriceps on food consumption and utilization by Heliothis virescens
TLDR
The effect of parasitism on the ability of H. virescens larvae to utilize ingested food was partially reduced by parasitism, and larvae parasitized by a normal female were less efficient than non-parasitized larvae in digesting food. Expand
Suppression of juvenile hormone esterase in Heliothis virescens by Microplitis demolitor calyx fluid
TLDR
The role of teratocytes in altering host development and the effects of calyx fluid on juvenile hormone esterase activity in H. virescens was investigated and it was suggested that the reduction in host JH ester enzyme activity was not due to a factor in the hemolymph. Expand
Developmental pathology of Heliothis virescens larvae parasitized by Microplitis croceipes: Parasite-mediated host developmental arrest
TLDR
The developmental pathology of Heliothis virescens larvae parasitized by the braconid wasp Microplitis croceipes was examined and parasite larvae were adversely affected by host neck ligation with their pupal plus cocoon weight being proportional to the age of the host at the time of ligation. Expand
...
1
2
3
4
5
...