A5065129896- Insect and Pesticide Research
- Plant and animal studies
- Bee Products Chemical Analysis
- Insect and Arachnid Ecology and Behavior
- Insect symbiosis and bacterial influences
University of Bologna
2021-2024
The genus Serratia harbors opportunistic pathogenic species, among which marcescens is for honeybees although little studied. Recently, virulent strains of S. colonizing the Varroa destructor mite’s mouth were found vectored into honeybee body, leading to septicemia and death. also occurs as an pathogen in honeybee’s gut with a low absolute abundance. population seems controlled by host immune system, but its presence may represent hidden threat, ready arise when are weakened biotic abiotic...
Fungicides, insecticides and herbicides are widely used in agriculture to counteract pathogens pests. Several of these molecules toxic non-target organisms such as pollinators their lethal dose can be lowered if applied a mixture. They cause large unpredictable problems, spanning from behavioural changes alterations the gut. The present work aimed at understanding synergistic effects on honeybees combined in-hive exposure sub-lethal doses insecticide thiacloprid fungicide penconazole. A...
<title>Abstract</title> <italic>Vespa orientalis</italic> (Oriental hornet) is expanding its range worldwide, raising concerns about predatory impact on honey bees and potential health risks to humans. This study provides the first comprehensive description of <italic>V. gut microbiome, explores how diet location influence microbial composition, bee pathogens reservoir. Adult hornets with different feeding behaviors were sampled from four urban natural sites in Malta. 16S rRNA gene...
Several studies have outlined that a balanced gut microbiota offers metabolic and protective functions supporting honeybee health performance. The present work contributes to increasing knowledge on the impact of three most common veterinary drugs (oxytetracycline, sulfonamides, tylosin). study was designed with semi-field approach in micro-hives containing about 500 honeybees. Micro-hives were located an incubator during day moved outdoors late afternoon, considering restrictions use...
Nosema ceranae is a major pathogen in the beekeeping sector, responsible for nosemosis. This disease hard to manage since its symptomatology masked until strong collapse of colony population occurs. Conversely, no medicaments are available market counteract nosemosis, and only few feed additives, with claimed antifungal action, available. New solutions strongly required, especially based on natural methods alternative veterinary drugs that might develop resistance or pollute honey bees...
The role of a balanced gut microbiota to maintain health and prevent diseases is largely established in humans livestock. Conversely, honeybees, studies on perturbations by external factors have started only recently. Natural methods alternative chemical products preserve honeybee been proposed, but their effect the has not examined detail. This study aims investigate administration bacterial mixture bifidobacteria Lactobacillaceae commercial product HiveAliveTM microbiota. was developed 18...
Pollen collected by pollinators can be used as a marker of the foraging behavior well indicate botanical species present in each environment. intake is essential for pollinators' health and survival. During activity, some pollinators, such honeybees, manipulate pollen mixing it with salivary secretions nectar (corbicular pollen) changing chemical profile. Different tools have been developed identification origin pollen, based on microscopy, spectrometry, or molecular markers. However, up to...
Abstract Several studies have outlined that a balanced gut microbiota offers metabolic and protective functions supporting honeybee health performances. The present work contributes to increasing knowledge on the impact of administration three different veterinary drugs (oxytetracicline, sulphonamides tylosin). trial was designed with semi-field approach in micro-hives containing about 500 bees, i.e. experimental conditions as close possible real hives considering restrictions use...