RNDr. Václav Němec, CSc.
Former employee - Laboratory of Insect Physiology
Department of Biochemistry and Physiology
Institute of Entomology
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Total found: 76 records
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Tykva R., Slaninová J.,
Bennettová B., Hlaváček J., Černý B., Vlasáková V., Němec V. (2005) Metabolic cleavage of N- and C-terminal amino acids of an insect oostatic peptide H-Tyr-Asp-Pro-Ala-Pro-OH. In: Abstracts, 9th Biologically Active Peptides, 20-22 April, 2005, Praha, Czech Republic, pp.
100-102.
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Němec V. (2003) A bait for locust (Locusta migratoria migratorioides) suitable for oral application of juvenile hormone analogues. Biologia
58: 287-290.
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| Němec V., Bennettová B., Hlaváček J., Tykva R. (2003) Srovnání působení oostatického tetrapeptidu Tyr-Asp-Pro-Ala a pentapeptidu Tyr-Asp-Pro-Ala-Pro na ovaria tří různých typů hmyzu. In: Abstrakt, 8. Biologicky Aktivní Peptidy, 23-25 April, 2003, Praha, Czech Republic, p. 34. |
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Němec V.,
Bennettová B., Hlaváček J., Tykva R. (2003) Comparison of biological effects of oostatic tetrapeptide (H-Tyr-Asp-Pro-Ala-OH) and pentapeptide (H-Tyr-Asp-Pro-Ala-Pro-OH) on three types of insect ovaries. In: 8th Biologically Active Peptides, 23-25 April, 2003, Praha, Czech Republic. Collection Symposium Series
6: 58-60.
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Němec V., Breuer M., De Loof A. (2003) Thin layer chromatographic analysis of pteridine-like pigments in the migratory
locust, Locusta migratoria migratorioides (Orthoptera: Oedipodidae ). Eur. J. Entomol.
100: 19-23.
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Němec V. (2002) Qantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis. Eur. J. Entomol.
99: 557-559.
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Němec V.,
Havelka J., Baldassari N., Baronio P. (2002) The effects of 20-hydroxyecdysone, metyrapone and dithiodiglucose on survival and reproduction of the aphid, Myzus persicae (Rhynchota Aphididae). Bull. Insectol.
55: 35-37.
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Gelbič I., Němec V. (2001) Developmental changes caused by metyrapone and azadirachtin in Spodoptera littoralis (Boisd.) (Lep., Noctuidae) and Galleria mellonella (L.) (Lep., Pyralidae). J. Appl. Ent.
125: 417-422.
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| Slavíčková K., Berger J., Nebesářová J., Němec V. (2001) The importance of fixation procedures for transmission electron microscopy of haemocytes of Pyrrhocoris apterus. In: J. Berger (ed.) Sborník z konference "Cells III", September 17-19, 2001, České Budějovice, Czech Republic. Abstract pp. 227-228. |
| Tykva R., Bennettová B., Hlaváček J., Němec V. (1999) Pohyb oostatického peptidu nebo jeho analogů včetně metabolitů u hmyzu Diptera a Orthoptera a jejich přenos do následné generace. In: Programme - Věd. konference Biologicky aktivní peptidy VI, April 21-23, 1999, Prague, Czech Republic. Abstract p. 26. |
| Tykva R., Hlaváček J., Němec V. (1999) Effect of a peptide and some of its analogs on the reproduction of Sarcophaga bullata and Locusta migratoria. In: Programme XI Symposium Pesticide Chemistry, September 13-16, 1999, Perugia, Italy. Abstract. pp. 895-901. |
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Sehnal F., Němec V. (1998) Role of ecdysteroid control of locust phase dimorphism. In: Brunnhofer V., Soldán T. (eds.) VIth European Congress of Entomology, August 23-29, 1998, České Budějovice, Czech Republic. Book of Abstracts p.
261.
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Stránský K., Němec V.,
Sláma K. (1998) Lipid composition of the seeds of an ecdysteroid-containing plant, Leuzea carthamoides (Willd.) DC (Asteraceae). Rus. J. Plant Physiol.
45: 390-396.
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Baldassari N., Baronio P., Němec V., Rejžek M., Wimmer Z. (1997) Control of Cacopsylla (Psylla) pyri (L.) (Stenorhyncha, Psyllidae) by juvenile hormone analogues. J. Appl. Ent.
121: 343-351.
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Bel Y., Porcar M.,
Socha R., Němec V., Ferré J. (1997) Analysis of pteridines in Pyrrhocoris apterus (L.) (Heteroptera, Pyrrhocoridae) during developmental and in body-color mutants. Arch. Insect Biochem. Physiol.
34: 83-98.
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Němec V.,
Bennettová B., Tykva R., Wimmer Z., Rejžek M. (1997) Distribution and excretion of juvenoid in the locust Locusta migratoria migratorioides (R. et L.) (Orth., Oedipodinae). J. Appl. Ent.
121: 353-356.
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Pener M., Ayali A., Kelmer G.,
Bennettová B., Němec V., Rejžek M., Wimmer Z. (1997) Comparative testing of several juvenile hormone analogues in two species of locusts, Locusta migratoria migratorioides and Schistocerca gregaria. Pestic. Sci.
51: 443-449.
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Wimmer Z., Rejžek M., Zarevúcka M., Kuldová J., Hrdý I., Němec V., Romaňuk M. (1997) A series of bicyclic insect juvenile hormone analogs of Czech origin: twenty years of development. J. Chem. Ecol.
23: 605-628.
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Němec V., Ženka J. (1996) Activity of phosphatases and esterases in the aphid, Acyrthosiphon pisum (Hemiptera: Sternorrhyncha: Aphididae), and in the gut wall of Galleria mellonella (Lepidoptera: Pyralidae) larvae and pupae. Eur. J. Entomol.
93: 37-44.
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Porcar M., Bel Y.,
Socha R., Němec V., Ferré J. (1996) Identification of pteridines in the firebug, Pyrrhocoris apterus (L.) (Heteroptera, Pyrrhocoridae) by high-performance liquid chromatography. J. Chromatogr. A
724: 193-197.
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