Search Results - "Richards, Elaine H"
-
1
Persistence of double-stranded RNA in insect hemolymph as a potential determiner of RNA interference success: Evidence from Manduca sexta and Blattella germanica
Published in Journal of insect physiology (01-02-2013)“…[Display omitted] ► We studied the degradation of dsRNA in insect hemolymph. ► dsRNA was rapidly degraded by an enzyme in M. sexta hemolymph. ► dsRNA persisted…”
Get full text
Journal Article -
2
Venom from the Endoparasitic Wasp Pimpla hypochondriaca Adversely Affects the Morphology, Viability, and Immune Function of Hemocytes from Larvae of the Tomato Moth, Lacanobia oleracea
Published in Journal of invertebrate pathology (01-07-2000)“…During oviposition, the endoparasitic wasp Pimpla hypochondriaca injects its pupal hosts with venom. This complex fluid has toxic properties and recently…”
Get full text
Journal Article -
3
SALIVARY SECRETIONS FROM THE ECTOPARASITIC WASP, Eulophus pennicornis CONTAIN HYDROLASES, AND KILL HOST HEMOCYTES BY APOPTOSIS
Published in Archives of insect biochemistry and physiology (01-02-2012)“…The current work demonstrates that larvae of the ectoparasitic wasp, Eulophus pennicornis, produce salivary secretions (Ep S) that contain a variety of…”
Get full text
Journal Article -
4
Novel control methods for insect pests: development of a microencapsulation procedure for proteinaceous bioactives intended for oral delivery
Published in Pest management science (01-09-2015)“…BACKGROUND: The objective was to develop an environmentally favourable microcapsule suitable for delivery of proteinaceous bioactive agents (‘bioinsecticides’)…”
Get full text
Journal Article -
5
A recombinant immunosuppressive protein from Pimpla hypochondriaca (rVPr1) increases the susceptibility of Lacanobia oleracea and Mamestra brassicae larvae to Bacillus thuringiensis
Published in Journal of invertebrate pathology (01-05-2010)“…The precise mechanisms underlying Bacillus thuringiensis–mediated killing of pest insects are not clear. In some cases, death may be due to septicaemia caused…”
Get full text
Journal Article -
6
Identification, cloning and expression of a second gene ( vpr1) from the venom of the endoparasitic wasp, Pimpla hypochondriaca that displays immunosuppressive activity
Published in Journal of insect physiology (01-02-2010)“…Previously, we biochemically isolated an immunosuppressive protein (VPr3) from the venom of Pimpla hypochondriaca and cloned and expressed the gene in…”
Get full text
Journal Article -
7
Recombinant immunosuppressive protein from Pimpla hypochondrica venom (rVPr1) increases the susceptibility of Mamestra brassicae larvae to the fungal biological control agent, Beauveria bassiana
Published in Archives of insect biochemistry and physiology (01-11-2011)“…Although fungi are used to control a variety of insect pests, it is accepted that their usage could be increased if their efficacy was greater. The outcome of…”
Get full text
Journal Article -
8
Biochemical isolation of an insect haemocyte anti-aggregation protein from the venom of the endoparasitic wasp, Pimpla hypochondriaca, and identification of its gene
Published in Journal of insect physiology (01-06-2008)“…Pimpla hypochondriaca venom is complex and contains a number of different proteins and polypeptides that exert a variety of effects on insect physiology. In…”
Get full text
Journal Article -
9
Cloning and expression of the gene for an insect haemocyte anti-aggregation protein (VPr3), from the venom of the endoparasitic wasp, Pimpla hypochondriaca
Published in Archives of insect biochemistry and physiology (01-08-2009)“…A venom protein from the endoparasitic wasp, Pimpla hypochondriaca, was recently biochemically isolated. This protein possessed haemocyte anti-aggregation…”
Get full text
Journal Article -
10
mode of action of venom from the endoparasitic wasp Pimpla hypochondriaca (Hymenoptera: Ichneumonidae) involves Ca⁺²-dependent cell death pathways
Published in Archives of insect biochemistry and physiology (01-07-2009)“…The endoparasitoid Pimpla hypochondriaca injects venom during oviposition to condition its lepidopteran hosts. Venom is a complex mixture of proteins and…”
Get full text
Journal Article -
11
Microbial infection causes the appearance of hemocytes with extreme spreading ability in monolayers of the tobacco hornworm Manduca sexta
Published in Developmental and comparative immunology (01-06-2004)“…The ability to adhere to and spread on a surface is a common property of insect blood cells. Spreading on a glass surface by insect hemocytes is often used as…”
Get full text
Journal Article -
12
Effect of overexpression of the small heat shock protein HSP27 on the heat and drug sensitivities of human testis tumor cells
Published in Cancer research (Chicago, Ill.) (15-05-1996)“…In contrast to most metastatic cancers, testicular germ cell tumors are cured in more than 80% of patients using cisplatin-based combination chemotherapy…”
Get full text
Journal Article -
13
Effects of the nematode Phasmarhabditis hermaphrodita and of venom from the endoparasitic wasp Pimpla hypochondriaca on survival and food consumption of the pest slug Deroceras reticulatum; implications for novel biocontrol strategies
Published in Pest management science (01-07-2008)“…BACKGROUND: Controlling pests through disruption of biochemical pathways by physiologically active compounds/factors from animals and plants represents an…”
Get full text
Journal Article -
14
Modulation by eicosanoid biosynthesis inhibitors of immune responses by the insect Manduca sexta to the pathogenic fungus Metarhizium anisopliae
Published in Journal of invertebrate pathology (01-02-2002)“…Metarhizium anisopliae conidia (spores) reduced weight gain and caused death when injected into Manduca sexta larvae. When the fungus was co-injected with the…”
Get full text
Journal Article -
15
Parasitism of Lacanobia oleracea (Lepidoptera) by the ectoparasitoid, Eulophus pennicornis, is associated with a reduction in host haemolymph phenoloxidase activity
Published in Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology (01-11-2000)“…When haemolymph from fifth instar Lacanobia oleracea was incubated in vitro, rapid melanization occurred. Similar levels of melanization occurred in haemolymph…”
Get full text
Journal Article -
16
Parasitization of Lacanobia oleracea (Lepidoptera) by the ectoparasitic wasp, Eulophus pennicornis, suppresses haemocyte-mediated recognition of non-self and phagocytosis
Published in Journal of insect physiology (2000)“…Although many endoparasitic wasps suppress the haemocyte-mediated immune defences of their insect hosts, the effects of ectoparasitoids are virtually unknown…”
Get full text
Journal Article -
17
Parasitism of Lacanobia oleracea (lepidoptera) by the ectoparasitic wasp, Eulophus pennicornis, disrupts the cytoskeleton of host haemocytes and suppresses encapsulation in vivo
Published in Archives of insect biochemistry and physiology (01-02-2002)“…Parasitism of Lacanobia oleracea larvae by the ectoparasitic wasp Eulophus pennicornis suppressed host haemocyte‐mediated encapsulation of Sephadex DEAE A‐25…”
Get full text
Journal Article -
18
Parasitism of Lacanobia oleracea (Lepidoptera, noctuidae) by the ectoparasitic wasp Eulophus pennicornis, results in the appearance of a 27 kDa parasitism-specific protein in host plasma
Published in Insect biochemistry and molecular biology (01-06-1999)“…Little is known about the effects of ectoparasitoids and their secretions on the plasma protein profiles of their insect hosts. To address this deficit, a…”
Get full text
Journal Article -
19
SALIVARY SECRETIONS FROM THE ECTOPARASITIC WASP, E ulophus pennicornis CONTAIN HYDROLASES, AND KILL HOST HEMOCYTES BY APOPTOSIS
Published in Archives of insect biochemistry and physiology (01-02-2012)“…The current work demonstrates that larvae of the ectoparasitic wasp, E ulophus pennicornis, produce salivary secretions ( E p S ) that contain a variety of…”
Get full text
Journal Article -
20
The titres of lectins in the haemolymph of Lacanobia oleracea and the effects of parasitism by the ectoparasitoid wasp Eulophus pennicornis
Published in Physiological entomology (01-09-2000)“…Serum from larvae of Lacanobia oleracea L. (Lepidoptera; Noctuidae) parasitized by Eulophus pennicornis (Hymenoptera; Eulophidae) and from normal…”
Get full text
Journal Article