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You searched for: Journal name Physiological entomology Remove constraint Journal name: Physiological entomology Publication year rev 7994-2006 Remove constraint Publication year rev: 7994-2006 Source 2006 v.31 no.4 Remove constraint Source: 2006 v.31 no.4
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1. Additive effect of teratocyte and calyx fluid from Cotesia plutellae on immunosuppression of Plutella xylostella

Author:
ANDREW, NEIL; BASIO, M.; KIM, YONGGYUN
Source:
Physiological entomology 2006 v.31 no.4 pp. 341-347
ISSN:
0307-6962
Subject:
Cotesia plutellae; teratocytes; parasitoids; immunosuppression; host-parasite relationships; cell-mediated immunity; insect immunity; arachidonic acid; body fluids; Plutella xylostella; immune response; hemocytes
Abstract:
... Teratocytes are cells that originate from the extra-embryonic tissues of some hymenopteran parasitoids, typically dissociate upon hatching, and develop in the host haemolymph. They are considered to be involved in parasitoid larval nutrient uptake, host immunosuppression and/or repression of competing parasitoid development. Teratocytes of the parasitoid, Cotesia plutellae (Kurdjumov) (Hymenoptera ...
DOI:
10.1111/j.1365-3032.2006.00524.x

2. Chemical information from the fungus Amylostereum areolatum and host-foraging behaviour in the parasitoid Ibalia leucospoides

Author:
MARTÍNEZ, ANDRÉS S.; FERNÁNDEZ-ARHEX, VALERIA; CORLEY, JUAN C.
Source:
Physiological entomology 2006 v.31 no.4 pp. 336-340
ISSN:
0307-6962
Subject:
Ibaliidae; parasitoids; Sirex noctilio; host seeking; foraging; symbionts; mutualism; fungi; Amylostereum; volatile compounds; allelochemicals; Pinus contorta var. latifolia; wood
Abstract:
... Parasitoids locate hosts using reliable and predictable cues such as smells derived from host plants or from the hosts themselves. For host species that live with mutualistic organisms, such as several wood boring insects, cues derived from the symbionts are likely to be exploited by specific parasitoids. Through a set of bioassays, the behaviour of the parasitoid Ibalia leucospoides Hochenwarth ( ...
DOI:
10.1111/j.1365-3032.2006.00523.x

3. Comparison of the egg-laying behaviour and electrophysiological responses of Delia radicum and Delia floralis to cabbage leaf compounds

Author:
GOUINGUENÉ, SANDRINE P.D.; STÄDLER, E.
Source:
Physiological entomology 2006 v.31 no.4 pp. 382-389
ISSN:
0307-6962
Subject:
chemoreceptors; interspecific variation; Delia radicum; Delia floralis; oviposition; glucobrassicin; host plants; sensilla; sensory neurons; chemical constituents of plants; electrophysiology; Brassica oleracea var. botrytis; cauliflower; leaves
Abstract:
... The behaviour and the sensitivity of adult cabbage root fly, Delia radicum and turnip root fly, Delia floralis are compared with host-plant extracts and isolated crucifer compounds previously identified as oviposition stimulants for D. radicum. The oviposition behaviour of both species is similar; 7-10-day-old females are stimulated to lay eggs by the methanol extract of cauliflower leaves that co ...
DOI:
10.1111/j.1365-3032.2006.00532.x

4. Effect of long-term and rapid cold hardening on the cold torpor temperature of an aphid

Author:
POWELL, S.J.; BALE, J.S.
Source:
Physiological entomology 2006 v.31 no.4 pp. 348-352
ISSN:
0307-6962
Subject:
Sitobion avenae; cold tolerance; acclimation; overwintering; cold stress; temperature
Abstract:
... The effect of long-term (seasonal) acclimation and rapid cold hardening is investigated on the cold torpor temperature (CTmin) of adult grain aphids, Sitobion avenae, reared at 20 or 10 °C for more than 6 months before experimentation. Rapid cold hardening is induced by exposing aphids reared at 20 to 0 °C for 3 h and aphids reared at 10 to 0 °C for 30 min (acclimation regimes previously found to ...
DOI:
10.1111/j.1365-3032.2006.00527.x

5. Temperature and development rate of Triatoma guasayana (Hemiptera: Reduviidae) eggs under laboratory conditions: physiological and adaptive aspects

Author:
RABINOVICH, JORGE; PIETROKOVSKY, SILVIA; WISNIVESKY-COLLI, CRISTINA
Source:
Physiological entomology 2006 v.31 no.4 pp. 361-370
ISSN:
0307-6962
Subject:
linear models; ova; Triatoma; nonlinear models; temperature; embryogenesis; heat sums
Abstract:
... Eggs laid in the laboratory by T. guasayana (Wygodzinsky & Abalos 1949) adults collected from wild biotopes in Santiago del Estero (Argentina) were exposed to fluctuating temperatures, and 172 egg batches, involving 1574 eggs, completed development. Their development times were fitted to the linear degree-day model and three nonlinear models (DEVAR, Lactin, and Rueda). Parameter values and 95% CL ...
DOI:
10.1111/j.1365-3032.2006.00529.x

6. Transmission of stridulatory signals of the burrower bugs, Scaptocoris castanea and Scaptocoris carvalhoi (Heteroptera: Cydnidae) through the soil and soybean

Author:
COKL, ANDREJ; NARDI, CRISTIANE; BENTO, JOSÉ MAURICIO SIMÕES; HIROSE, EDSON; PANIZZI, ANTÔNIO RICARDO
Source:
Physiological entomology 2006 v.31 no.4 pp. 371-381
ISSN:
0307-6962
Subject:
insect morphology; Scaptocoris carvalhoi; Glycine max; soil insects; vibration; soybeans; soil; Scaptocoris castanea; stridulation
Abstract:
... Males and females of the burrower bug species Scaptocoris castanea Perty and Scaptocoris carvalhoi Becker emit stridulatory signals when on the roots of soybean. The substrate-borne components of the signal can be recorded on the plant but not on the surrounding soil surface. The stridulatory apparatus is composed of the tergal plectrum (lima) and the stridulitrum (stridulatory vein) on the unders ...
DOI:
10.1111/j.1365-3032.2006.00530.x

7. A transgenerational interval timer inhibits unseasonal sexual morph production in damson-hop aphid, Phorodon humuli

Author:
CAMPBELL, COLIN A.M.; TREGIDGA, EMMA L.
Source:
Physiological entomology 2006 v.31 no.4 pp. 394-397
ISSN:
0307-6962
Subject:
Phorodon humuli; insect reproduction; sexual reproduction; parthenogenesis; morphs; wings; polymorphism; photoperiodism; photoperiod; seasonal variation; host plants; Prunus spinosa; Humulus lupulus
Abstract:
... The induction of sexual and parthenogenetic morphs of the damson-hop aphid, Phorodon humuli, on hops is controlled by daylength. The ability of P. humuli, to produce winged pre-sexual females (gynoparae) in the short-day conditions of spring is inhibited by an interval timer present in generations immediately after hatching of the overwintering egg. The inhibition expires after three generations w ...
DOI:
10.1111/j.1365-3032.2006.00531.x

8. Antennal olfactory sensitivity in response to task-related odours of three castes of the ant Atta mexicana (hymenoptera: formicidae)

Author:
LÓPEZ-RIQUELME, GERMÁN OCTAVIO; MALO, EDI A.; CRUZ-LÓPEZ, LEOPOLDO; FANJUL-MOLES, MARíA LUISA
Source:
Physiological entomology 2006 v.31 no.4 pp. 353-360
ISSN:
0307-6962
Subject:
2-heptanone; insect behavior; electroantennography; soldier insects; polyethism; Atta; smell; foraging; odor compounds; oleic acid; electrophysiology; antennae
Abstract:
... The relationship between scent composition and antennal sensitivity in different castes of Atta mexicana is investigated under laboratory conditions. Extracts of dead ants are analysed by gas chromatography-mass spectrometry to identify the compounds presumably responsible for the specific undertaking behaviour. Oleic acid is identified as one compound that triggers undertaking behaviour. To deter ...
DOI:
10.1111/j.1365-3032.2006.00526.x

9. Comparison of ion transportation before and after egg hatching in Amphinemura sp. (Plecoptera)

Author:
YOSHIMURA, MAYUMI; YAMADA, TSUYOSHI
Source:
Physiological entomology 2006 v.31 no.4 pp. 390-393
ISSN:
0307-6962
Subject:
viability; egg membranes; egg masses; ion transport; Nemouridae; hatching; aquatic insects
Abstract:
... An increase in egg size with embryonic development in stoneflies is believed to result from the uptake of water by osmosis. The present study aims to investigate whether a selective ion transport through egg membranes exists before hatching, and whether ions are released after hatching. Viable and nonviable egg masses are incubated in Petri dishes filled with water, and the concentrations of the i ...
DOI:
10.1111/j.1365-3032.2006.00521.x

10. Hydrogen cyanide release during feeding of generalist and specialist lepidopteran larvae on a cyanogenic plant, Passiflora capsularis

Author:
ALONSO AMELOT, MIGUEL E.; ÁVILA NÚÑEZ, JORGE LUIS; DUARTE, LISDAY; OLIVEROS-BASTIDAS, ALBERTO
Source:
Physiological entomology 2006 v.31 no.4 pp. 307-315
ISSN:
0307-6962
Subject:
host range; food intake; phytophagous insects; food plants; Passiflora; kinetics; plant-insect relations; Spodoptera frugiperda; cyanogenesis; feeding behavior; larvae; hydrogen cyanide
Abstract:
... The hydrogen cyanide-based interaction of a strongly cyanogenic plant, Passiflora capsularis, and larvae of two insect herbivores, a generalist (Spodoptera frugiperda) and a specialist (Heliconius erato), is examined in terms of the combined kinetics of the feeding process and the simultaneous hydrogen cyanide (HCN) liberation, as compared with the natural kinetics of hydrogen cyanide evolution by ...
DOI:
10.1111/j.1365-3032.2006.00528.x

11. Reorganization of membrane lipids during fast and slow cold hardening in Drosophila melanogaster

Author:
OVERGAARD, JOHANNES; SØRENSEN, JESPER G.; PETERSEN, SØREN O.; LOESCHCKE, VOLKER; HOLMSTRUP, MARTIN
Source:
Physiological entomology 2006 v.31 no.4 pp. 328-335
ISSN:
0307-6962
Subject:
Drosophila melanogaster; cold tolerance; cell membranes; lipid composition; phospholipids; saturated fatty acids; unsaturated fatty acids; cold stress; temperature; duration; acclimation; mortality
Abstract:
... Rapid cold hardening is a naturally occurring phenomenon in insects that is thought to be responsible for increased cold tolerance during diurnal variations in temperature. The underlying physiological mechanisms are still not fully resolved but, in Drosophila melanogaster (Meigen 1830), rapid cold hardening is accompanied by specific changes in the membrane lipid composition. To further understan ...
DOI:
10.1111/j.1365-3032.2006.00522.x

12. Sub-lethal responses of the large pine weevil, Hylobius abietis, to the pyrethroid insecticide lambda-cyhalothrin

Author:
ROSE, D.; MATTHEWS, G.A.; LEATHER, S.R.
Source:
Physiological entomology 2006 v.31 no.4 pp. 316-327
ISSN:
0307-6962
Subject:
lipid content; antifeeding activity; behavioral resistance; Hylobius abietis; lambda-cyhalothrin; Pinus sylvestris; tree damage; sublethal effects; feeding preferences; Picea sitchensis
Abstract:
... The response of the large pine weevil (Hylobius abietis) to the pesticide lambda-cyhalothrin, a pyrethroid, is investigated. Both behavioural (feeding preferences) and nutritional and physiological (lipid content) responses are recorded. Hylobius abietis shows both a significant avoidance of pesticide-treated food sources and a decrease in lipid content after exposure, but a full recovery after fe ...
DOI:
10.1111/j.1365-3032.2006.00525.x