Značení zimních včel
on Říjen 14, 2020
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V rámci projektu Ministerstva zemědělství jsme barevně označili několik tisíc zimních včel pro následné experimenty…
Special Issue „Insects, Nematodes and Their Symbiotic Bacteria“
on Září 24, 2020
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Dear Colleagues, Insect pathogenic nematodes (entomopathogenic nematodes—EPNs) are lethal parasites to their hosts, and are frequently used as biological agents in the control of insect pests. Lethality may be as a result of the virulence factors provided by the nematodes … Read More
Differences in the growth rate and immune strategies of farmed and wild mallard populations
on Září 24, 2020
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Individuals reared in captivity are exposed to distinct selection pressures and evolutionary processes causing genetic and phenotypic divergence from wild populations. Consequently, restocking with farmed individuals may represent a considerable risk for the fitness of free-living populations. Supportive breeding on … Read More
Opět chováme bource morušové
on Červenec 19, 2020
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Heptabladed β‐propeller lectins PLL2 and PHL from Photorhabdus spp. recognize O‐methylated sugars and influence the host immune system
on Červenec 14, 2020
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O‐methylation is an unusual sugar modification with a function that is not fully understood. Given its occurrence and recognition by lectins involved in the immune response, methylated sugars were proposed to represent a conserved pathogen‐associated molecular pattern. We describe the … Read More
Bioactive Excreted/Secreted Products of Entomopathogenic Nematode Heterorhabditis bacteriophora Inhibit the Phenoloxidase Activity during the Infection
on Červen 5, 2020
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Insects 2020, 11(6), 353; https://doi.org/10.3390/insects11060353 ABSTRACT: Entomopathogenic nematodes (EPNs) are efficient insect parasites, that are known for their mutualistic relationship with entomopathogenic bacteria and their use in biocontrol. EPNs produce bioactive molecules referred to as excreted/secreted products (ESPs), which have … Read More
Effects of trichothecene mycotoxin T-2 toxin on haematological and immunological parameters of rainbow trout (Oncorhynchus mykiss)
on Květen 26, 2020
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Mycotoxin Res (2020). ABSTRACT: The aim of this study was to assess the effects of T-2 toxin–contaminated feed (at concentrations of 1.0 and 1.8 mg/kg) on the rainbow trout immune system by studying non-specific cellular and humoral immune responses and … Read More
The Effect of Foraging on Bumble Bees, Bombus terrestris, Reared under Laboratory Conditions
on Květen 25, 2020
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ABSTRACT: Bumble bees are important pollinators broadly used by farmers in greenhouses and under conditions in which honeybee pollination is limited. As such, bumble bees are increasingly being reared for commercial purposes, which brings into question whether individuals reared under … Read More
Změny fyziologických a imunitních parametrů včel v průběhu roku – Rozdíly mezi krátkověkou a dlouhověkou generací včel nejsou jen v tom, jaké činnosti vykonávají
on Duben 17, 2020
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Pro včelaře je důležitá informace o tom, jaký podíl dlouhověkých včel se v jejich včelstvu nachází již na začátku podzimu, protože už tehdy se rozhoduje, jestli včelstvo přežije zimní období či nikoliv. Bohužel však nelze tyto dvě populace rozlišit podle žádných … Read More
Zoologické dny
on Únor 14, 2020
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Zúčastnili jsme se konference Zoologické dny 2020 v Olomouci. Naši studenti prezentovali své výsledky na šesti posterech: Seasonal changes of antioxidant capacity in honeybee, Apis mellifera L. The effect of adipokinetic hormone on nutrient levels and locomotion of the greater … Read More