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542. Půlstoletí vyškovské ZOO /
- Creator:
- Mikulka, Radek,
- Type:
- text, statický obraz, publikace jubilejní, and publikace populárně-naučné
- Subject:
- Zoologie, zahrady zoologické, Československo 1945-1992, české země od r. 1993 do současnosti, and vědy o živé přírodě
- Language:
- Czech and English
- Description:
- 500 výtisků
- Rights:
- unknown
543. Půlstoletí zoologických průzkumů Podblanicka ve Sborníku vlastivědných prací z Podblanicka /
- Creator:
- Hanel, Lubomír,
- Type:
- text, studie, and bibliografie
- Subject:
- Zoologie, zoologie, sborníky vlastivědné, Československo 1945-1992, vědy o živé přírodě, české země od r. 1993 do současnosti, and regionální bibliografie
- Language:
- Czech
- Description:
- A half-century of zoological investigations in the region of Podblanicko (Central Bohemia) published in the regional collection Nature and History of Podblanicko Region.
- Rights:
- unknown
544. Původ a život našeho úhoře
- Creator:
- Schäferna, Karel
- Publisher:
- Nákladem ministerstva zemědělství republiky Československé
- Format:
- print and 32 stran : ilustrace
- Type:
- model:monograph and TEXT
- Subject:
- Zoologie, sladkovodní ryby, úhoř, obecná zoologie, ekologie živočichů, 639.21, 591, 2, and 59
- Language:
- Czech
- Description:
- Karel Schäferna. and Bibliografie
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
545. Quametopia, a new genus of Nearctic Anthomyzidae (Diptera), with description of two new species, immature stages and life history
- Creator:
- Jindřich Roháček and Barber, Kevin N.
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, entomologie, Diptera, Anthomyzidae, Nearctic, taxonomy, Quametopia new genus, 2 new species, lectotype designations, relationships, immature stages, life history, distribution, keys, 2, and 59
- Language:
- English
- Description:
- Quametopia gen. n. is established on the basis of recent phylogenetic analysis of taxa formerly assembled under the genus Mumetopia Melander, 1913 to include M. terminalis (Loew, 1863) and two new closely related Nearctic species of Anthomyzidae. The new genus is diagnosed and its phylogenetic relationships discussed. Quametopia terminalis (Loew, 1863) comb. n. is transferred from Mumetopia and redescribed based on revision of the type material (lectotypes of Anthophilina terminalis Loew, 1863 and its synonym Mumetopia nitens Melander, 1913 are designated) and other extensive material. Quametopia clintonia sp. n. and Q. amplistylus sp. n. (both from Canada, USA) are described and relationships of all three Quametopia species discussed. Immature stages of Q. terminalis and Q. clintonia sp. n. obtained by means of adult-to-adult rearing are described (1st- and 2nd-instar larvae for the first time in the family Anthomyzidae) and illustrated. Keys to adults, eggs, larvae and puparia of Quametopia species are presented. Biology (habitat and host-plant associations, life history) of Q. terminalis and Q. clintonia sp. n. are studied in detail and their ecological separation demonstrated. Distribution of all Quametopia species is reviewed. and Jindřich Roháček, Kevin N. Barber.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
546. Recombinant expression, purification and characterization of Bombyx mori (Lepidoptera: Bombycidae) pyridoxal kinase
- Creator:
- Huang, Shuo-Hao, Ma, Wang, Zhang, Ping-Ping, Zhang, Jian-Yun, Xie, Yan-Feng, and Huang, Long-Quan
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, entomologie, Bombyx mori, pyridoxal kinase, recombinant expression, purification, characterization, 2, and 59
- Language:
- English
- Description:
- Pyridoxal kinase (PLK; EC 2.7.1.35) is a key enzyme in the metabolism of vitamin B6 (VB6) in Bombyx mori. A fusion expressional vector pET-22b-BPLK-His was constructed using a sub-cloning technique, the recombinant B. mori PLK was then expressed in Escherichia coli, purified and characterized. Bioinformatics were used to deduce the protein structure and genomic organization of this enzyme. Using Ni Sepharose affinity column chromatography, the recombinant protein was purified to very high degree (approximately 90%). The recombinant PLK exhibits a high specific enzymatic activity (1800 nmol/min/mg of protein). The maximum catalytic activity of this enzyme was recorded over a narrow pH range (5.5-6.0) and Zn2+ is the most effective cation for catalysis under saturating substrate concentrations. When only triethanolamine is present as the cation, K+ is an activator of PLK. A double reciprocal plot of initial velocity suggests that the enzyme catalyses the reaction by means of a sequential catalytic mechanism. Under optimal conditions, the Km value for the substrates of ATP and pyridoxal are 57.9 ± 5.1 and 44.1 ± 3.9 µM. B. mori's genome contains a single copy of the PLK gene, which is 7.73 kb long and contains five exons and four introns, and is located on the eighth chromosome. The PLK may be a dimer with two identical subunits under native conditions, and it is hypothesized that each monomer contains eight α-helices (α1-8), nine β-strands (β1-9) and two segments of 310 helices. and Shuo-Hao HUANG, Wang MA, Ping-Ping ZHANG, Jian-Yun ZHANG, Yan-Feng XIE, Long-Quan HUANG.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
547. Reconstructing a 55-million-year-old butterfly (Lepidoptera: Hesperiidae)
- Creator:
- De Jong, Rienk
- Format:
- print, počítač, and online zdroj
- Type:
- article, články, journal articles, model:article, and TEXT
- Subject:
- Zoologie, evoluce (biologie), biogeografie, evolution (biology), biogeography, Fossil, oldest butterfly, Hesperiidae, Protocoeliades kristenseni, new genus, new species,, divergence time, 2, and 59
- Language:
- English
- Description:
- The oldest butterfly fossil known, which was formed about 55 Ma in what is now Denmark, is described. The fragments of its forewing venation indicates it belongs to the Hesperiidae. Further reconstruction indicates that it fits in the Coeliadinae and is close to the extant genera Hasora and Burara. It is here described as Protocoeliades kristenseni gen. et sp. n. It is the first butterfly fossil found on a continent (Europe) where its closest relatives do not currently occur. Its position on the phylogenetic tree of the Coeliadinae and its importance in understanding the time dimension in the evolution of butterflies, and their ecological and biogeographic implications are discussed., Rienk De Jong., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
548. Relation between plant water status and Macrosiphum euphorbiae (Hemiptera: Aphididae) population dynamics on three cultivars of tomato
- Creator:
- Rivelli, Anna R., Tritta, Vincenzo, Toma, Irene, Fanti, Paolo, and Battaglia, Donatella
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, zoologie, entomologie, Hemiptera, Aphididae, Macrosiphum euphorbiae, aphid population dynamics, Lycopersicon exculentum, water stress, trophic interaction, 2, and 59
- Language:
- English
- Description:
- 1_Macrosiphum euphorbiae. Three tomato cultivars (Scintilla, Beefmaster and Rio Grande) were used in the experiments. The results for three watering regimes were compared with those of a control, which was well watered every three days: stressed plants received one third of the water supplied to the control over each three-day interval (experiment 1); stressed plants received a gradually decreasing amount of water (100% at the first watering and then 80%, 60%, 50%, 40% and 20%) every three days (experiment 2); stressed plants received the same amount of water as the control but at longer intervals, that is when evident signs of wilting appeared (experiment 3). The results showed that water stress either enhanced, had an adverse effect or had no effect on aphid population growth, depending on the cultivar and watering regime. No difference was recorded in the population dynamics of M. euphorbiae feeding on Beefmaster tomato plants subjected to different levels of water stress. In the case of the cultivar Scintilla, live aphids were less abundant on stressed plants than on well watered ones in experiment 1 and 3 but not in experiment 2., 2_The highest variability in aphid population dynamics on the plants grown under the different water stress protocols was recorded on the cultivar Rio Grande. In experiment 1, the initial peak in aphid numbers was higher on the water stressed plants than on the control and then decreased to lower numbers than on the control. In experiment 2, there were no differences in the numbers of aphids infesting stressed and control plants. In experiment 3, there were fewer aphids on stressed than on control plants after six days, as in experiment 1, but there was no initial peak in aphid numbers., Anna R. Rivelli ... [et al.]., and Obsahuje seznam literatury
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
549. Relationship between the development of Simulium maculatum (Diptera: Simuliidae) and the thermal regime
- Creator:
- Bernotienė, Rasa and Bartkevičienė, Galina
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, entomologie, Simuliidae, Simulium maculatum, development, temperature, precipitation, atmospheric circulation, 2, and 59
- Language:
- English
- Description:
- Warmer temperatures in the past 30 years have significantly influenced the seasonal development of insects throughout Europe. As a result of the outbreaks of black flies that have occurred in southeastern Lithuania since the 1970s it is hypothesized that this increase in black fly activity is due to the change in climate. To test this hypothesis the development of Simulium maculatum Meigen under different conditions was determined. This revealed that the time of hatching of S. maculatum eggs in Lithuania was influenced by winter air temperatures, especially those in March. Pupation in S. maculatum is associated with the increase in air and water temperatures that occur at the end of April and in May. The emergence of S. maculatum black flies occurs most often in May. At a water temperature of 13.2°C (1999), S. maculatum took 42 days to develop and half this time (21 days) when the water temperature was 18.8°C (2005). The number of black flies that emerged each year was determined by air temperature but unaffected by rainfall in June (either per month or per ten-day period). and Rasa Bernotienė, Galina Bartkevičienė.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
550. Relationships between locomotor activity, oxidative damage and life span in males and females of the linden bug, Pyrrhocoris apterus (Heteroptera: Pyrrhocoridae)
- Creator:
- Buricova, Marcela and Magdalena Hodková
- Type:
- article, články, model:article, and TEXT
- Subject:
- Zoologie, zoologie, entomologie, Heteroptera, Pyrrhocoridae, Pyrrhocoris apterus, corpus allatum, juvenile hormone, allatectomy, diapause, locomotor activity, survival, life span, oxidative stress, protein carbonyls, 2, and 59
- Language:
- English
- Description:
- n this study we addressed a question of whether experimental manipulations that increase life span also reduce physical activity and molecular oxidative damage. We used three phenotypes of male and female Pyrrhocoris apterus that survive for different lengths of time, diapausing insects, reproductive insects and insects from which the corpus allatum, the source of juvenile hormone, was surgically removed. Protein carbonyl content of the thoracic muscles was used as an index of molecular oxidative modification. Diapause or ablation of the corpus allatum (allatectomy) was associated with an extended life span of both sexes, but only those individuals that were in diapause were less active. The carbonyl content, both relative (per protein unit) and absolute (per thorax) increased with age in reproductive insects of both sexes. However, the associations between the carbonyl content and diapause and allatectomy differed in males and females. In males, the carbonyl content was not associated with either diapause or allatectomy. There was no age-related increase in the relative and absolute carbonyl levels in diapausing females, while only the increase in the relative carbonyl level was absent in allectomized females. Overall, the results indicate that both allatectomy and diapause prolonged life span, but had different and sex-specific effects on locomotor activity and carbonyl content. Only the extension of the life span of diapausing females was correlated with both reduced locomotor activity and reduced carbonyl content., Marcela Buricova, Magdalena Hodkova., and Obsahuje seznam literatury
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public