Effects of the organic acids produced by a lactic acid bacterium in Apis mellifera colony development, Nosema ceranae control and fumagillin efficiency

Effects of Lactobacillus Johnsonii AJ5 Metabolites on Nutrition, Nosema Ceranae Development and Performance of Apis Mellifera L.

“…We found no differences in the lipid mass on bees being fed SLC and MRS but a decreasing trend was observed over time. This result differs from the increase on fat body mass found by Maggi et al (2013) in bees supplemented with bacterial metabolites. As mentioned before, these differences were probably based on the lower concentration of organics acids administered in this research.…”

“…Our study was focused on assessing the effect of bacterial metabolites produced by a LAB (L. johnsonii AJ5) on nutritional parameters, N. ceranae development and performance of A. mellifera colonies. LAB belonging to honey bee gut microbiota was selected on the basis of its production of organic acids and its beneficial effects on honey bees (Audisio & Benítez, 2011;Maggi et al, 2013;Audisio et al, 2015). We observed that CFS in high doses is not lethal after 72 h of bee exposure.…”

“…This result differed from previous reports in which not only bee gut bacteria had been administered inside beehives but also their metabolites. Maggi et al (2013) had found that colonies fed with a CFS produced by Lactobacillus johnsonii CRL1647 increased their beehive population compared with untreated colonies. One of the differences between these two studies was the use of distinct strains of the same bacterial species.…”

“…(Porrini et al, 2010) and Lactobacillus spp. (Maggi et al, 2013) were administered to bees. Over the last years, honey bee researchers have been working hard to analyze the composition and function of honey bee microbiota (Engel et al, 2012;Mattila et al, 2012;Vásquez et al, 2012;Alberoni et al, 2016) to use it as an alternative to deal with nutritional and immunological problems (Crotti et al, 2012;Moran, 2015).…”

Distribution, epidemiological characteristics and control methods of the pathogen Nosema ceranae Fries in honey bees Apis mellifera L. (Hymenoptera, Apidae)

“…One possibility is surfactin (a compound produced by B. subtilis), which significantly suppresses the parasite load and does not damage the health of the bee. There are also a number of metabolites produced by Lactobacillus johnsonii CRL 1647 (mainly organic acids), which have no toxic effects against honey bees, increase the hive population through the administration of lactic acids, and increase the amount of fatty bodies in the bee; this results in a reduction in pathogen intensity after the second application of organic acid treatment, as well as enhancing the effectiveness of Fumagillin (Maggi et al 2013). Nevertheless, further research is still required to determine the minimum and maximum concentrations to avoid leaving residues in the honey that are harmful to human health (Porrini et al 2010).…”