(Arbo)viruses in high European Arctic
ELSTEROVÁ, Jana
2016 - English Since an ongoing climate change covers strongly the polar areas. Higher temperatures and related climate parameters bring the emergence of new parasites and their pathogens to higher latitudes. This may influence zoonotic diseases including arthropod-transmitted diseases. The tick species Ixodes uriae, parasitizing seabirds in the Arctic, may transmit many pathogens including various arboviruses, Borrelia spirochetes and Babesia apicomplexans. In the study we diagnosed 89 individuals of seabird tick Ixodes uriae and searched for arthropod-borne viruses from the genera Flavivirus, Alphavirus, Orthobunyavirus, Phlebovirus and Orbivirus using genus-specific primers. Moreover we searched for presence of Borrelia spp. and Babesia spp. DNA in the ticks. All samples were negative after PCR amplification for all tested pathogens. The result signalizes that tested pathogens might not be present in such high latitudes of European Arctic. Though, the possibility of introduction of these pathogens may be observable in near future due to quick changing of the Arctic ecosystem with the rising of migration of vertebrate hosts including humans to the polar areas. It is though important to continue to study potential presence of pathogens in polar areas. We are working on increase of the number of tick samples to confirm the presence or absence of the tick-borne pathogens in the European Arctic. Keywords: Arbovirus; Arctic; Polar Areas; Ixodes uriae; Tick-borne pathogen Available in the Digital Repository of University of South Bohemia. (Arbo)viruses in high European Arctic

Since an ongoing climate change covers strongly the polar areas. Higher temperatures and related climate parameters bring the emergence of new parasites and their pathogens to higher latitudes. This ...

ELSTEROVÁ, Jana
Jihočeská univerzita v Českých Budějovicích, 2016

Effect of low doses of herbicide paraquat on antioxidant defense in Drosophila
SÁBOVÁ, Michala
2016 - English Disruption of cell equilibrium between production of free radicals and antioxidant defence is named oxidative stress. The main component of antioxidant mechanism is activity of antioxidant enzymes, which include superoxide dismutase (SOD) and catalase. In this study we evaluated the effect of herbicide paraquat on response of SOD and catalase, their transcription level and locomotion activity in Drosophila melanogaster. We exposed the flies to a wide range of paraquat concentration. Our results revealed that transcript and enzymatic levels of both SOD and catalase have a similar biphasic dose response with the peaks at 2,5 ?M paraquat concentration, resembling hormetic effect. Then, males were more sensitive than females. However, females had an increased locomotion activity. We found that paraquat susceptibility is increased in males and mating flies. Therefore, this study supports hypothesis of stress sensitivity elevation as a physiological cost of reproduction. Disruption of cell equilibrium between production of free radicals and antioxidant defence is named oxidative stress. The main component of antioxidant mechanism is activity of antioxidant enzymes, which include superoxide dismutase (SOD) and catalase. In this study we evaluated the effect of herbicide paraquat on response of SOD and catalase, their transcription level and locomotion activity in Drosophila melanogaster. We exposed the flies to a wide range of paraquat concentration. Our results revealed that transcript and enzymatic levels of both SOD and catalase have a similar biphasic dose response with the peaks at 2,5 ?M paraquat concentration, resembling hormetic effect. Then, males were more sensitive than females. However, females had an increased locomotion activity. We found that paraquat susceptibility is increased in males and mating flies. Therefore, this study supports hypothesis of stress sensitivity elevation as a physiological cost of reproduction. Keywords: superoxide dismutase; catalase; antioxidant mechanism; paraquat; Drosophila melanogaster Available in the Digital Repository of University of South Bohemia. Effect of low doses of herbicide paraquat on antioxidant defense in Drosophila

Disruption of cell equilibrium between production of free radicals and antioxidant defence is named oxidative stress. The main component of antioxidant mechanism is activity of antioxidant enzymes, ...

SÁBOVÁ, Michala
Jihočeská univerzita v Českých Budějovicích, 2016

Romanticism in Bohemia. The Essentials of Georg Buquoy's Philosophical Thought
MORAWETZ, Michal
2017 - Czech Available in the Digital Repository of University of South Bohemia. Romanticism in Bohemia. The Essentials of Georg Buquoy's Philosophical Thought

MORAWETZ, Michal
Jihočeská univerzita v Českých Budějovicích, 2017

Living Things in the Science Education
PETR, Jan
2017 - Czech Current state-of-the-art in the use of living things in primary science education has not been studied in detail in the Czech Republic. This thesis presents the paper published a short time ago and accompanied by the brief commentary. The aim is to evaluate data gained by the video-research of thirty (integrated) science classes and to give an analysis of the use of living things in selected science units. The paper has a character of case study containing not very large amount of lessons but it enables to describe the use of living things in the framework of selected thematic units in which the use of living things is possible or expectable. Stav využívání přírodnin v konkrétních hodinách, situacích nebo tématech na 1. stupni ZŠ nebyl dosud detailněji popsán. Tato rigorózní práce se opírá o již publikovaný článek, jehož cílem bylo pomocí analýzy videozáznamu třiceti vyučovacích hodin prvouky a přírodovědy provést sondu zjišťující aktuální stav využívání přírodnin nebo jejich zprostředkované prezentace ve vybraných tematických celcích. Práce má charakter případové studie, která sice nepostihuje statisticky významnější vzorek vyučovacích hodin nebo konkrétních učitelů, avšak umožňuje hlouběji poznat problematiku využívání přírodnin ve vybraných tématech, kde by se využití reálných přírodnin dalo očekávat nebo předpokládat. Keywords: Přírodniny; přírodovědné vzdělávání; videovýzkum; Living things; science education; video research Available in the Digital Repository of University of South Bohemia. Living Things in the Science Education

Current state-of-the-art in the use of living things in primary science education has not been studied in detail in the Czech Republic. This thesis presents the paper published a short time ago and ...

PETR, Jan
Jihočeská univerzita v Českých Budějovicích, 2017

The Correspondence of Albrecht Pětipeský of Chýše and Egrberk from years 1570-1596
MAREŠ, Petr
2017 - Czech Available in the Digital Repository of University of South Bohemia. The Correspondence of Albrecht Pětipeský of Chýše and Egrberk from years 1570-1596

MAREŠ, Petr
Jihočeská univerzita v Českých Budějovicích, 2017

Návrh obsahu modulů specializačního vzdělávání zaměřeného na celiakii
ZIMMELOVÁ, Hana
2014 - Czech Available in the Digital Repository of University of South Bohemia. Návrh obsahu modulů specializačního vzdělávání zaměřeného na celiakii

ZIMMELOVÁ, Hana
Jihočeská univerzita v Českých Budějovicích, 2014

Species-Specificity of the Phengaris (= Maculinea) - Myrmica Host System: Fact or myth? (Lepidoptera: Lycaenidae; Hymenoptera: Formicidae)
PECH, Pavel
2015 - English Available in the Digital Repository of University of South Bohemia. Species-Specificity of the Phengaris (= Maculinea) - Myrmica Host System: Fact or myth? (Lepidoptera: Lycaenidae; Hymenoptera: Formicidae)

PECH, Pavel
Jihočeská univerzita v Českých Budějovicích, 2015

Novel roles for the corpus allatum hormone in the cost of sexual interactions in the linden bug Pyrrhocoris apterus
PROVAZNÍK, Jan
2015 - Czech The decrease of lifespan by mating is a common, yet poorly understood occurrence. Juvenile hormone (JH) is widely believed to mediate shortened lifespan in insect, caused by mating. In this study we tested the role of JH in the linden bug (Pyrrhocoris apterus) by removal of the corpus allatum gland and thus the JH source. We then proceeded to study the lifespan of mated animals vs. virgin animals. Virgin animals without JH live longer as was expected. The effect on mated animals is however different between males and females. Surprisingly in females, JH seems to lower the cost of mating. In males, on the other hand, the cost of mating seems to be independent on JH levels. Another surprising conclusion is that the level of JH in females affects the lifespan of males that mate with such females. Keywords: diapauza; juvenilni hormon; hmyz; délka života; lifespan; diapause; juvenile hormone; insect; lifespan; longevity Available in the Digital Repository of University of South Bohemia. Novel roles for the corpus allatum hormone in the cost of sexual interactions in the linden bug Pyrrhocoris apterus

The decrease of lifespan by mating is a common, yet poorly understood occurrence. Juvenile hormone (JH) is widely believed to mediate shortened lifespan in insect, caused by mating. In this study we ...

PROVAZNÍK, Jan
Jihočeská univerzita v Českých Budějovicích, 2015

A photosynthetic alveolate closely related to apicomplexan parasites
CHRUDIMSKÝ, Tomáš
2008 - English Available in the Digital Repository of University of South Bohemia. A photosynthetic alveolate closely related to apicomplexan parasites

CHRUDIMSKÝ, Tomáš
Jihočeská univerzita v Českých Budějovicích, 2008

The activity of total histone H1 kinases is related to growth and commitment points while(suc1) - bound kinase activity relates to mitoses in the alga \kur{Scenedesmus quadricauda}
BIŠOVÁ, Kateřina
2008 - Czech Available in the Digital Repository of University of South Bohemia. The activity of total histone H1 kinases is related to growth and commitment points while(suc1) - bound kinase activity relates to mitoses in the alga \kur{Scenedesmus quadricauda}

BIŠOVÁ, Kateřina
Jihočeská univerzita v Českých Budějovicích, 2008