Search results: 2,934 results (approx.)

2. Entomology with the Peace Corps in Thailand.

A brief account is given of the author's experiences in crop protection/pest control in Thailand while with the U.S. Peace Corps.

Author(s) : Jahn, G. C.

Journal article : American Entomologist 1992 Vol.38 No.1 pp.10-11

3. Production and characterization of a polyclonal antiserum against Spiroplasma mirum (ATCC 29335).

Spiroplasma mirum (ATCC 29335), an American tick isolate, was cultivated and its purity was controlled using electron microscopy and Tricine-SDS-PAGE. In the SDS-PAGE analysis, the protein pattern of the antigen used revealed a polypeptide profile (35 bands) with an approximate molecular weight of...

Author(s) : Tenckhoff, B.; Kölmel, H. W.; Wolf, V.; Lange, R.

Journal article : Zentralblatt für Bakteriologie 1994 Vol.280 No.3 pp.409-415 ref.16

4. Early recognition of atypical Francisella tularensis strains lacking a cysteine requirement.

Seven cultures referred to in the authors' laboratories as unidentified gram-negative bacilli or Haemophilus species were identified as atypical strains of F. tularensis lacking a requirement for cysteine or enriched medium for growth. The use of cellular fatty acid composition analysis facilitated ...

Author(s) : Bernard, K.; Tessier, S.; Winstanley, J.; Chang, D.; Borczyk, A.

Journal article : Journal of Clinical Microbiology 1994 Vol.32 No.2 pp.551-553 ref.15

5. Influence of adult body size and the male pronotal horn on phenotypic variation in Onthophagus binodis Thunberg (Coleoptera: Scarabaeidae).

The influence of adult body size and the male pronotal horn on phenotypic variation in offspring of the dung beetle O. binodis (from Western Australia) were examined in the laboratory. Female size predominantly determined the amount of dung provided to each brood mass, which had a significant...

Author(s) : Cook, D. F.

Journal article : Journal of the Australian Entomological Society 1993 Vol.32 No.1 pp.45-50 ref.19

6. Mayaro virus proteins.

Mayaro virus was grown in BHK-21 cells and purified by centrifugation in a potassium tartrate gradient (5-50%). Electron microscopy of the purified virus showed a homogenous population of enveloped particles 69±2.3 nm in diameter. 3 structural proteins were identified and designated p1, p2 and p3....

Author(s) : Mezencio, J. M. S.; Rebello, M. A.

Journal article : Memórias do Instituto Oswaldo Cruz 1993 Vol.88 No.2 pp.299-304 ref.18

7. Cantharidin, another natural toxin that inhibits the activity of serine/threonine protein phosphatases types 1 and 2A.

Cantharidin, a natural toxicant of blister beetles, is a strong inhibitor of protein phosphatases types 1 (PP1) and 2A (PP2A). Like okadaic acid, cantharidin inhibits the activity of the purified catalytic subunit of PP2A (IC50 = 0.16 µsmallcap˜M) at a lower concentration than that of PP1 (IC50 =...

Author(s) : Honkanen, R. E.

Journal article : FEBS Letters 1993 Vol.330 No.3 pp.283-286 ref.33

8. First scorpion (Buthidae: Centruroides) from Mexican amber (lower Miocene to upper Oligocene).

The presence of a fossil Centruroides in amber from Chiapas, Mexico, is documented.

Author(s) : Santiago-Blay, J. A.; Poinar, G. O., Jr.

Journal article : Journal of Arachnology 1993 Vol.21 No.2 pp.147-151 ref.12

9. Binding of an α scorpion toxin to insect sodium channels is not dependent on membrane potential.

The insect-specific LqhαIT toxin (from the venom of the scorpion Leiurus quinquestriatus hebraeus) resembles α scorpion toxins affecting mammals by its amino acid sequence and effects on sodium conductance. LqhαIT does not bind to rat brain membranes. In locust (Locusta migratoria) neuronal...

Author(s) : Gordon, D.; Zlotkin, E.

Journal article : FEBS Letters 1993 Vol.315 No.2 pp.125-128 ref.28

10. The exotic land planarian Geoplana sanguinea (Moseley) naturalized in the Galway area (Turbellaria, Tricladida, Terricola).

Records of the introduced flatworm G. sanguinea from the Galway area of the Irish Republic are presented. In Galway, this Australian species has been found in gardens and woodland sites, under stones and flowerpots, and in soil. [For this and other alien flatworms introduced to Ireland see R....

Author(s) : McCarthy, T. K.

Journal article : Irish Naturalists' Journal 1993 Vol.24 No.6 pp.257-258 ref.15

11. Pathogenesis of Pichinde virus infection in strain 13 guinea pigs: an immunocytochemical, virologic, and clinical chemistry study.

Pichinde virus has been adapted to produce lethal infection of Strain 13 guineapigs. Viral replication and presence of viral antigen in frozen tissues stained by immunofluorescence has been previously described. Further investigation into the pathogenesis of this disease has been hampered by the...

Author(s) : Connolly, B. M.; Bennett Jenson, A.; Peters, C. J.; Geyer, S. J.; Barth, J. F.; McPherson, R. A.

Journal article : American Journal of Tropical Medicine and Hygiene 1993 Vol.49 No.1 pp.10-24 ref.23

12. Protein polymorphisms and variations of wild house rat (Rattus norvegicus) population in Korea.

Protein polymorphisms and allele frequencies in the Korean wild population of R. norvegicus were studied. The proteins and enzymes comprised transferrin (Tf), albumin (Alb), fumarate hydratase (FH), phosphoglucomutase (PGM), lactate dehydrogenase A (LDHA) and B (LDHB). There were 2 transferrin...

Author(s) : Kim NamKeun; Lee HaKyu; Lee ChungChoo

Journal article : Korean Journal of Zoology 1993 Vol.36 No.2 pp.193-199 ref.47

13. Effects of temperature on fecundity and viral replication in Amblyomma cajennense (Arachnida: Ixodidae) infected with Venezuelan equine encephalomyelitis virus.

To assess how temperature affects fecundity and Venezuelan equine encephalomyelitis (VEE) viral replication in VEE-infected A. cajennense, adult ticks were inoculated intracoelomically with either VEE virus (I-A variant) or diluent. Ticks were held at 19, 26 or 33°C and tested for VEE virus over 20 ...

Author(s) : Dohm, D. J.; Linthicum, K. J.

Journal article : Journal of Medical Entomology 1993 Vol.30 No.1 pp.286-290 ref.26

14. Vertical transmission of Toscana virus in the sandfly, Phlebotomus perniciosus, via the second gonotrophic cycle.

Laboratory studies indicated clearly that Toscana virus can be transovarially transmitted to the progeny of orally infected P. perniciosus. The data also agreed with previous failures to transmit virus infection to 1st gonotrophic cycle progeny of membrane fed P. perniciosus [see American Journal...

Author(s) : Maroli, M.; Ciufolini, M. G.; Verani, P.

Journal article : Medical and Veterinary Entomology 1993 Vol.7 No.3 pp.283-286 ref.35

15. Localization of a low abundance membrane protein (Bm86) on the gut cells of the cattle tick Boophilus microplus by immunogold labeling.

A pre-embedding immunogold technique was used to locate Bm86, an antigen from the gut digest cells of B. microplus. Gut from partially engorged female ticks was everted to expose the cells, lightly fixed in 4% paraformaldehyde, and then incubated in rabbit antisera against a recombinant form of...

Author(s) : Gough, J. M.; Kemp, D. H.

Journal article : Journal of Parasitology 1993 Vol.79 No.6 pp.900-907 ref.20

17. Ecdysone deprivation affects polyamine metabolism in the house cricket Acheta domesticus.

Using HPLC analysis, polyamine levels were determined in several tissues of 10-day old adult crickets subjected to different hormonal conditions. Ovariectomy performed during the last larval instar suppressed haemolymph ecdysteroids and significantly increased the spermidine titres in nervous...

Author(s) : Strambi, C.; Tirard, A.; Renucci, M.; Faure, P.; Charpin, P.; Augier, R.; Strambi, A.

Journal article : Insect Biochemistry and Molecular Biology 1993 Vol.23 No.1 pp.165-170 ref.36

18. Membrane fusion of Semliki Forest virus in a model system: correlation between fusion kinetics and structural changes in the envelope glycoprotein.

A kinetic analysis of low-pH-induced fusion of Semliki Forest virus (SFV) with cholesterol-containing unilamellar lipid vesicles (liposomes), consisting otherwise of phosphatidylcholine, phosphatidylethanolamine and sphingomyelin was conducted. Fusion was monitored continuously with a lipid mixing...

Author(s) : Bron, R.; Wahlberg, J. M.; Garoff, H.; Wilschut, J.

Journal article : EMBO Journal 1993 Vol.12 No.2 pp.693-701 ref.57

19. Animal-animal parasitism.

The occurrence of larval stages of mites on midges preserved in amber dating from the Cretaceous period (70-80 million years BP) is described. 4 of 81 midges were found to be parasitized in Canadian amber collected from the Foremost formation (Judith River group) near Grassy Lake, Alberta. All the...

Author(s) : Poinar, G. O., Jr.; Pike, E. M.; Krantz, G. W.

Correspondence : Nature (London) 1993 Vol.361 No.6410 pp.307-308 ref.2

20. Avoidance of bird repellents by mice (Mus musculus).

It is believed that mammalian chemosensory irritants are not aversive to birds and vice versa. Nevertheless, few avian repellents have been tested against mammals. For that reason, the efficacy of 1.0% w/v methyl anthranilate, orthoaminoacetophenone, 2-amino-4′,5′-methoxyacetophenone,...

Author(s) : Nolte, D. L.; Mason, J. R.; Clark, L.

Journal article : Journal of Chemical Ecology 1993 Vol.19 No.3 pp.427-432 ref.20

22. Trends in the Journal of Animal Ecology: 1932-92.

Thirteen volumes of the Journal of Animal Ecology, starting in 1932 and ending in 1992, were analysed for trends in their contents. 'Country of origin' was divided into 4 categories: UK, Europe, North America and Other. There has been a significant decline in the number of UK papers and a...

Author(s) : Shorrocks, B.

Journal article : Journal of Animal Ecology 1993 Vol.62 No.4 pp.599-605 ref.10

23. Mark and recapture of adult Ixodes pacificus (Acari: Ixodidae) to determine the effect of repeated removal sampling on tick abundance.

The effect of biweekly flagging on adult I. pacificus abundance was determined in Contra Costa County, California, USA, by using mark-recapture techniques. Ticks were recaptured up to 3 times during the 12-week study, and increasingly higher proportions of marked ticks were recaptured as the study...

Author(s) : Kramer, V. L.; Carper, E. R.; Beesley, C.

Journal article : Journal of Medical Entomology 1993 Vol.30 No.6 pp.1071-1073 ref.13

24. Failure to isolate viruses of the genus Phlebovirus from Lutzomyia shannoni sand flies (Diptera: Psychodidae) from Ossabaw Island, Georgia.

Lutzomyia shannoni were collected on Ossabaw Island, Chatham County, Georgia, USA, and tested for infection with viruses of the genus Phlebovirus. No virus isolates were obtained from 5053 sandflies collected in 1990 and 1991. These results suggest that phleboviruses are absent from this population ...

Author(s) : Comer, J. A.

Journal article : Journal of Entomological Science 1993 Vol.28 No.1 pp.25-28 ref.11

25. The evolution of cryptic coloration.

Author(s) : Edmunds, M.

Publisher : State University of New York Press, Albany, New York, USA

Miscellaneous : Insect defenses: adaptive mechanisms and strategies of prey and predators. 1990 pp.3-21 ref.81