The pathological effects of a Nosema ceranae infection in the giant honey bee, Apis dorsata Fabricius, 1793

2021 ◽  
Vol 185 ◽  
pp. 107672
Author(s):  
Rujira Ponkit ◽  
Sanchai Naree ◽  
Christopher L. Mayack ◽  
Guntima Suwannapong
Pathogens ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 785
Author(s):  
Sanchai Naree ◽  
Rujira Ponkit ◽  
Evada Chotiaroonrat ◽  
Christopher L. Mayack ◽  
Guntima Suwannapong

Nosema ceranae is a large contributing factor to the most recent decline in honey bee health worldwide. Developing new alternative treatments against N. ceranae is particularly pressing because there are few treatment options available and therefore the risk of increased antibiotic resistance is quite high. Recently, natural products have demonstrated to be a promising avenue for finding new effective treatments against N. ceranae. We evaluated the effects of propolis extract of stingless bee, Tetrigona apicalis and chito-oligosaccharide (COS) on giant honey bees, Apis dorsata, experimentally infected with N. ceranae to determine if these treatments could improve the health of the infected individuals. Newly emerged Nosema-free bees were individually inoculated with 106N. ceranae spores per bee. We fed infected and control bees the following treatments consisting of 0%, 50%, propolis extracts, 0 ppm and 0.5 ppm COS in honey solution (w/v). Propolis extracts and COS caused a significant increase in trehalose levels in hemolymph, protein contents, survival rates and acini diameters of the hypopharyngeal glands in infected bees. Our results suggest that propolis and COS could improve the health of infected bees. Further research is needed to determine the underlying mechanisms responsible for the improved health of the infected bees.


2021 ◽  
Vol 217 ◽  
pp. 112258
Author(s):  
Hanine Almasri ◽  
Daiana Antonia Tavares ◽  
Marie Diogon ◽  
Maryline Pioz ◽  
Maryam Alamil ◽  
...  

PLoS ONE ◽  
2012 ◽  
Vol 7 (4) ◽  
pp. e34436 ◽  
Author(s):  
Zhi Yong Liu ◽  
Zi Long Wang ◽  
Wei Yu Yan ◽  
Xiao Bo Wu ◽  
Zhi Jiang Zeng ◽  
...  

2012 ◽  
Vol 109 (2) ◽  
pp. 187-193 ◽  
Author(s):  
Brenna E. Traver ◽  
Matthew R. Williams ◽  
Richard D. Fell

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Jamiat . ◽  
Iskandar A M ◽  
M Idham

Local wisdom is one of the characteristics national culture that deserves to be explored and developed in the future. Honey production is carried out by maintaining traditional nest making that utilizes natural materials are local wisdom that is still applied. The purpose of this study is to (1) reveal the local wisdom in natural forest honey management, (2) the amount of natural forest honey produced by the community from periau using tikung techniques in the area of Siawan Belida, Nanga Tuan Village, Bunut Hilir Subdistrict, Kapuas Hulu Regency. The method used a survey with interview techniques, the selection of respondents are choosing all Nanga Tuan periau. The results of the study revealing local wisdom in preserving natural honey bees with tikung techniques in the Siawan Belida area, namely; tikung, making tikung, selecting trees for installation of tikung, agreement on division of territory in lakes (suak), sanctions for tree destroyers, sanctions for tikung hives burglars, pre-harvesting ceremonies, conditions of harvesting natural forest honey, harvesting honey bees process, honey treatment after harvesting at home. Tree preservation efforts of tikung honey bee techniques based on local wisdom, including; stipulation of forest lake areas in the management of tikung honey, types of feed for Apis dorsata bees. The amount of natural forest honey is 5- 8 tons / year with planting done twice / year.Keywords : local wisdom, natural honey bees, Siawan Belida, tikung techniques


2020 ◽  
Vol 59 (4) ◽  
pp. 468-471
Author(s):  
Anais Rodríguez Luis ◽  
Carlos Ariel Yadró García ◽  
Ciro Invernizzi ◽  
Belén Branchiccela ◽  
Adolfo Mauricio Pérez Piñeiro ◽  
...  
Keyword(s):  

Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 124 ◽  
Author(s):  
Alessandra Mura ◽  
Michelina Pusceddu ◽  
Panagiotis Theodorou ◽  
Alberto Angioni ◽  
Ignazio Floris ◽  
...  

Nosema ceranae is a widespread obligate intracellular parasite of the ventriculus of many species of honey bee (Apis), including the Western honey bee Apis mellifera, in which it may lead to colony death. It can be controlled in A. mellifera by feeding the antibiotic fumagillin to a colony, though this product is toxic to humans and its use has now been banned in many countries, so in beekeeping, there exists a need for alternative and safe products effective against N. ceranae. Honeybees produce propolis from resinous substances collected from plants and use it to protect their nest from parasites and pathogens; propolis is thought to decrease the microbial load of the hive. We hypothesized that propolis might also reduce N. ceranae infection of individual bees and that they might consume propolis as a form of self-medication. To test these hypotheses, we evaluated the effects of an ethanolic extract of propolis administered orally on the longevity and spore load of experimentally N. ceranae-infected worker bees and also tested whether infected bees were more attracted to, and consumed a greater proportion of, a diet containing propolis in comparison to uninfected bees. Propolis extracts and ethanol (solvent control) increased the lifespan of N. ceranae-infected bees, but only propolis extract significantly reduced spore load. Our propolis extract primarily contained derivatives of caffeic acid, ferulic acid, ellagic acid and quercetin. Choice, scan sampling and food consumption tests did not reveal any preference of N. ceranae-infected bees for commercial candy containing propolis. Our research supports the hypothesis that propolis represents an effective and safe product to control N. ceranae but worker bees seem not to use it to self-medicate when infected with this pathogen.


2013 ◽  
Vol 193 (1-3) ◽  
pp. 260-265 ◽  
Author(s):  
Veeranan Chaimanee ◽  
Jeffery S. Pettis ◽  
Yanping Chen ◽  
Jay D. Evans ◽  
Kitiphong Khongphinitbunjong ◽  
...  
Keyword(s):  

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