A5036085517- Insect and Pesticide Research
- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Bee Products Chemical Analysis
- Insect-Plant Interactions and Control
- Insect Pest Control Strategies
- Selenium in Biological Systems
- Allelopathy and phytotoxic interactions
- Healthcare and Venom Research
National University of Mar del Plata
2014-2024
RedCLARA
2024
Centro Científico Tecnológico Mar del Plata
2017-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2012-2024
Fundación Ciencias Exactas y Naturales
2012-2023
Centro Científico Tecnológico - San Juan
2020
Universidad de la República de Uruguay
2020
Centro Científico Tecnológico - Tucumán
2013-2014
Agencia Nacional de Promoción de la Investigación, el Desarrollo Tecnológico y la Innovación
2010
Due to their social behaviour, honey bees can be infected by a wide range of pathogens including the microsporidia Nosema ceranae and bacteria Paenibacillus larvae . The use probiotics as food additives for control or prevention infectious diseases is widely used approach improve human animal health. In this work, we generated mixture four Lactobacillus kunkeei strains isolated from gut microbial community bees, evaluated its potential beneficial effect on adult bees. Its administration in...
Over the last quarter century, increasing honey bee colony losses motivated standardized large-scale surveys of managed bees (Apis mellifera), particularly in Europe and United States. Here we present first survey stingless across Latin America. Overall, 1736 beekeepers 165 meliponiculturists participated 2-year (2016-2017 2017-2018). On average, 30.4% colonies 39.6% were lost per year region. Summer higher than winter (30.9% 22.2%, respectively) but not (18.8% 20.6%, respectively). Colony...
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...
Abstract The research aims to give new insights on the effect of administering selected bacterial strains, isolated from honey bee gut, and/or a commercial plant extract blend (HiveAlive ® ) Nosema ceranae . Analyses were first performed under laboratory conditions such as different infective doses N. , single strains and their mixture influence pollen administration. Daily survival feed consumption rate recorded pathogen development was analysed using qPCR microscope counts. Biomarkers...
SummaryTo investigate the effect of nutritional condition honey bee Apis mellifera on development microsporidian parasite Nosema ceranae under laboratory conditions, newly emerged bees were confined and fed three ad libitum diets: high fructose corn syrup (HFCS) + fresh bread; HFCS a commercial mixture amino acid vitamin, HFCS. On day 7 post-emergence, from each diet treatment individually infected with 4.60 × 104, 2.30 105 or 1.15 106 spores N. ceranae, keeping later same diet. days 3, 6,...
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...
Nosema ceranae is an obligate intracellular parasite and the etiologic agent of Nosemosis that affects honeybees. Beside stress caused by this pathogen, honeybee colonies are exposed to pesticides under beekeeper intervention, such as acaricides control Varroa mites. These compounds can accumulate at high concentrations in apicultural matrices. In work, effects parasitosis/acaricide on genes involved immunity survival were evaluated. Nurse bees infected with N. and/or chronically treated...
In Uruguay, colonies of honey bees moving to Eucalyptus grandis plantation in autumn habitually become infected with the microsporidian Nosema ceranae , a parasite that attacks digestive system bees. Beekeepers attributed N. depopulation often occurs at end blooming period, and many use antibiotic fumagillin reduce level infection. The aim this study was compare effectiveness four different treatments determine how affects strength during winter season. treated July showed less spore load...
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...
African honey bee subspecies Apis mellifera scutellata began to spread in the American continent from southern Brazil 1956. The process of Africanization involved both maternal and paternal bidirectional gene flow between European Africanized bees. In Argentina, bees dominate northern semitropical regions a hybrid area is defined (ca. 32°–34°latitude). Although previous analysis has been carried out Buenos Aires province, no made south this latitude. We used mitochondrial DNA (mtDNA) assays...
Diverse parasites and pathogens affect productivity survival of honey bees. Plant secondary metabolites are potential alternative treatments, however, their effect has been little studied on microsporidian diseases. Furthermore, there is poor information about the toxicity resulting from prolonged oral administration these substances to In this research, we evaluated in vivo effects different essential oils main components (MCs) bee Nosema ceranae development under an ad libitum non-choice...
"Individual feeding of honey bees: modification the Rinderer technique." Journal Apicultural Research, 52(5), pp. 194–195