scholarly journals Infection of drone larvae (Apis mellifera) with American foulbrood

Apidologie ◽  
2007 ◽  
Vol 38 (3) ◽  
pp. 281-288 ◽  
Author(s):  
Dieter Behrens ◽  
Eva Forsgren ◽  
Ingemar Fries ◽  
Robin F.A. Moritz
Keyword(s):  
Apis Mellifera ◽  
American Foulbrood

scholarly journals Impact of Nosema Disease and American Foulbrood on Gut Bacterial Communities of Honeybees Apis mellifera

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 525
Author(s):  
Poonnawat Panjad ◽  
Rujipas Yongsawas ◽  
Chainarong Sinpoo ◽  
Chonthicha Pakwan ◽  
Phakamas Subta ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Bacterial Communities ◽  
454 Pyrosequencing ◽  
Gut Bacteria ◽  
Nosema Ceranae ◽  
Paenibacillus Larvae ◽  
American Foulbrood ◽  
Nosema Disease ◽  
The Impact ◽  
Pathogenic Infection

Honeybees, Apis mellifera, are important pollinators of many economically important crops. However, one of the reasons for their decline is pathogenic infection. Nosema disease and American foulbrood (AFB) disease are the most common bee pathogens that propagate in the gut of honeybees. This study investigated the impact of gut-propagating pathogens, including Nosema ceranae and Paenibacillus larvae, on bacterial communities in the gut of A. mellifera using 454-pyrosequencing. Pyrosequencing results showed that N. ceranae was implicated in the elimination of Serratia and the dramatic increase in Snodgrassella and Bartonella in adult bees’ guts, while bacterial communities of P. larvae-infected larvae were not affected by the infection. The results indicated that only N. ceranae had an impact on some core bacteria in the gut of A. mellifera through increasing core gut bacteria, therefore leading to the induction of dysbiosis in the bees’ gut.

scholarly journals Immune investigation of the honeybee Apis mellifera jemenitica broods: A step toward production of a bee-derived antibiotic against the American foulbrood

2020 ◽  
Author(s):  
Ahmad A. Al-Ghamdi ◽  
Mariam S. Al-Ghamdi ◽  
Ashraf M. Ahmed ◽  
Abdel Salam A. Mohamed ◽  
Ghada H. Shaker ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
American Foulbrood ◽  
Apis Mellifera Jemenitica

Control of oxytetracycline-resistant American foulbrood with tylosin and its toxicity to honey bees (Apis mellifera)

2002 ◽  
Vol 41 (3-4) ◽  
pp. 97-100 ◽  
Author(s):  
P Elzen ◽  
D Westervelt ◽  
D Causey ◽  
R Rivera ◽  
J Baxter ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Honey Bees ◽  
American Foulbrood

Volatile disease markers of American foulbrood-infected larvae in Apis mellifera

2020 ◽  
Vol 122 ◽  
pp. 104040
Author(s):  
Sujin Lee ◽  
Sooho Lim ◽  
Yong-Soo Choi ◽  
Myeong-lyeol Lee ◽  
Hyung Wook Kwon
Keyword(s):  
Apis Mellifera ◽  
American Foulbrood ◽  
Disease Markers

scholarly journals American Foulbrood in the Czech Republic: ERIC II Genotype of Paenibacillus Larvae Is Prevalent

2021 ◽  
Vol 8 ◽  
Author(s):  
Jana Biová ◽  
Jaroslav Bzdil ◽  
Silvie Dostálková ◽  
Marek Petřivalský ◽  
Jan Brus ◽  
...  
Keyword(s):  
Czech Republic ◽  
Apis Mellifera ◽  
Clinical Symptoms ◽  
Paenibacillus Larvae ◽  
American Foulbrood ◽  
Enterobacterial Repetitive Intergenic Consensus ◽  
The Czech Republic ◽  
Field Isolates ◽  
Border Regions ◽  
Consensus Classification

American foulbrood (AFB) is a dangerous disease of honeybees (Apis mellifera) caused by the spore-forming bacterium Paenibacillus larvae. According to the ERIC (enterobacterial repetitive intergenic consensus) classification, five genotypes are distinguished, i.e., I, II, III, IV, and V, which differ in their virulence and prevalence in colonies. In the Czech Republic, AFB prevalence is monitored by the State Veterinary Administration; however, the occurrence of specific P. larvae genotypes within the country remains unknown. In this study, our aim was to genotype field P. larvae strains collected in the Czech Republic according to the ERIC classification. In total, 102 field isolates from colonies with AFB clinical symptoms were collected from various locations in the Czech Republic, and the PCR genotypization was performed using ERIC primers. We confirmed the presence of both ERIC I and II genotypes, while ERIC III, IV, and V were not detected. The majority of samples (n = 82, 80.4%) were identified as ERIC II, while the ERIC I genotype was confirmed only in 20 samples (19.6%). In contrast to other European countries, the ERIC II genotype is predominant in Czech honeybee colonies. The ERIC I genotype was mostly detected in border regions close to Poland, Slovakia, and Austria.

Larval exposure to thiamethoxam and American foulbrood: effects on mortality and cognition in the honey bee Apis mellifera

2017 ◽  
Vol 56 (4) ◽  
pp. 475-486 ◽  
Author(s):  
Anna Papach ◽  
Dominique Fortini ◽  
Stephane Grateau ◽  
Pierrick Aupinel ◽  
Freddie-Jeanne Richard
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
American Foulbrood
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