نتایج جستجو برای: american foul brood paenibacillus larvae

تعداد نتایج: 244036  

2015
Witthaya Anamnart Pewpan Maleewong Intapan Attarat Pattanawongsa Pennapa Chamavit Supreecha Kaewsawat Wanchai Maleewong

Dispersion or dilution of stool by water from heavy rainfall may affect Strongyloides stercoralis free-living development producing infective filariform larvae (FL). This study examined effect of water dilution of stool on survival of S. stercoralis free-living development. One g of stool was prepared in water so that its soluble component was diluted sequentially from 1:2 to 1:480. Three dishe...

2015
Michael A. Sheflo Adam V. Gardner Bryan D. Merrill Joshua N. B. Fisher Bryce L. Lunt Donald P. Breakwell Julianne H. Grose Sandra H. Burnett

Volume 1, no. 6, e00668-13, 2013. The species infected by the five bacteriophages was misidentified as Paenibacillus larvae. The article title should read as given above, and the organism identified as Paenibacillus larvae should be identified as Brevibacillus laterosporus throughout. Page 1: The abstract should read as follows. “Brevibacillus laterosporus is a secondary invader following Europ...

2001
CAMILLA J. BRØDSGAARD

INTRODUCTION Paenibacillus larvae larvae (WHITE) is the causative agent of American foulbrood (AFB) in honey bees (Apis mellifera L.). This disease is lethal to honey bee colonies if curative control actions are not taken (HANSEN and BRØDSGAARD, 1997). Recently, increasing problems with AFB in Europe (DROBNÍKOVÁ,1992; HANSEN,1996; OTTEN, 1991; VON DER OHE et al. 1996) have renewed the interest ...

Journal: :Veterinaria italiana 2007
Valerio Spinosi Primula Semprini Vincenzo Langella Giampiero Scortichini Silvano Calvarese

American foulbrood, caused by Paenibacillus larvae subsp. larvae (White 1906) is one of the most serious diseases of honey bees, causing beekeepers and health workers to make difficult, complex decisions and leading to the development of 'organic' treatments, such as grapefruit seed extract, with minor residue problems in the end product. This study evaluates the chemical composition of grapefr...

2015
Sara Ghorbani-Nezami Lucy LeBlanc Diane G. Yost Penny S. Amy

American foulbrood disease has a major impact on honeybees (Apis melifera) worldwide. It is caused by a Gram-positive, spore-forming bacterium, Paenibacillus larvae. The disease can only affect larval honeybees, and the bacterial endospores are the infective unit of the disease. Antibiotics are not sufficient to combat the disease due to increasing resistance among P. larvae strains. Because of...

2017
Javier Hernández López Sophie Krainer Antonia Engert Wolfgang Schuehly Ulrike Riessberger-Gallé Karl Crailsheim

Disclosing interactions between pesticides and bee infections is of most interest to understand challenges that pollinators are facing and to which extent bee health is compromised. Here, we address the individual and combined effect that three different pesticides (dimethoate, clothianidin and fluvalinate) and an American foulbrood (AFB) infection have on mortality and the cellular immune resp...

2014
Lina De Smet Dieter De Koker Alyse K. Hawley Leonard J. Foster Paul De Vos Dirk C. de Graaf

Paenibacillus larvae, the causal agent of American Foulbrood disease (AFB), affects honey bee health worldwide. The present study investigates the effect of bodily fluids from honey bee larvae on growth velocity and transcription for this Gram-positive, endospore-forming bacterium. It was observed that larval fluids accelerate the growth and lead to higher bacterial densities during stationary ...

Journal: :Journal of invertebrate pathology 2003
Jay D Evans

Paenibacillus larvae is the causative agent of the important honey bee larval disease American Foulbrood (AFB). This pathogen has been treated in bee colonies by a single registered antibiotic, oxytetracycline (OTC), for fifty years. Recently, widespread resistance to OTC has been reported. In this study, the degree of antibiotic resistance was contrasted with DNA sequence variation for 125 P. ...

F. Motamedi Sede R. Betesho Babrud R. Kasra Kermanshahi, S. Z. Moosavinejad

Background: Paenibacillus larvae is the etiological agent of American foulbrood (AFB) disease, the most lethal disease in honeybee (Apis mellifera) larvae. Aims: The aim of the present work was to study the antimicrobial effect of cell free supernatant (CFS) of probiotics on an Iranian isolate’s biofilm formation. Methods: A l...

2016
Elliot Nicholas Grady Jacqueline MacDonald Linda Liu Alex Richman Ze-Chun Yuan

Isolated from a wide range of sources, the genus Paenibacillus comprises bacterial species relevant to humans, animals, plants, and the environment. Many Paenibacillus species can promote crop growth directly via biological nitrogen fixation, phosphate solubilization, production of the phytohormone indole-3-acetic acid (IAA), and release of siderophores that enable iron acquisition. They can al...

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