Searching the Resource Information Network
Are you sure you want to leave this community? Leaving the community will revoke any permissions you have been granted in this community.
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®) on Nosema ceranae. Analyses were first performed under laboratory conditions such as different infective doses of N. ceranae, the effect of single strains and their mixture and the influence of pollen administration. Daily survival and feed consumption rate were recorded and pathogen development was analysed using qPCR and microscope counts. Biomarkers of immunity and physiological status were also evaluated for the different treatments tested using one bacterial strain, a mixture of all the bacteria and/or a plant extract blend as treatments. The results showed an increase of abaecin transcript levels in the midgut of the honey bees treated with the bacterial mixture and an increased expression of the protein vitellogenin in the haemolymph of honey bees treated with two separate bacterial strains (Bifidobacterium coryneforme and Apilactobacillus kunkeei). A significant effectiveness in reducing N. ceranae was shown by the bacterial mixture and the plant extract blend regardless of the composition of the diet. This bioactivity was seasonally linked. Quantitative PCR and microscope counts showed the reduction of N. ceranae under different experimental conditions. The antiparasitic efficacy of the treatments at field conditions was studied using a semi-field approach which was adapted from research on insecticides for the first time, to analyse antiparasitic activity against N. ceranae. The approach proved to be reliable and effective in validating data obtained in the laboratory. Both the mixture of beneficial bacteria and its association with Hive Alive® are effective in controlling the natural infection of N. ceranae in honey bee colonies.
Pubmed ID: 36637793
Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.
The CONICET is the leading organization dedicated to the promotion of science and technology in Argentina. It operates in four major areas * agricultural sciences, engineering and materials * life sciences and health * natural sciences * Social Sciences and Humanities The National Scientific and Technical Research Council (Spanish: Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET) is an Argentine government agency which directs and co-ordinates most of the scientific and technical research done in universities and institutes. It was established on 5 February 1958 by a decree of the national government. Its first director was Medicine Nobel Prize Bernardo A. Houssay. Nowadays, it is governed by a board completely independent from the federal government. It funds scientific research in three basic ways. First, CONICET gives grants for collective work to research teams of well-recognized scientists of every discipline (including social sciences and humanities). Secondly, it has a roll of 6,500 researches and 2,500 technicians as employees in different categories, from investigador asistente to investigador principal. And thirdly, it grants scolarships for doctoral and post-doctoral studies to 8,500 young researches from Argentina and other countries. (Wikipedia)
View all literature mentions