Activity of selected plant extracts against honey bee pathogen Paenibacillus larvae
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چکیده
منابع مشابه
Transcriptional Response of Honey Bee Larvae Infected with the Bacterial Pathogen Paenibacillus larvae
American foulbrood disease of honey bees is caused by the bacterium Paenibacillus larvae. Infection occurs per os in larvae and systemic infection requires a breaching of the host peritrophic matrix and midgut epithelium. Genetic variation exists for both bacterial virulence and host resistance, and a general immunity is achieved by larvae as they age, the basis of which has not been identified...
متن کاملTranscriptional immune responses by honey bee larvae during invasion by the bacterial pathogen, Paenibacillus larvae.
Honey bee larvae are highly susceptible to the bacterial pathogen Paenibacillus larvae only during the first instar of larval development. Transcript levels were measured for genes encoding two antimicrobial peptides, abaecin and defensin, as well as for two candidates in the immune response cascade (PGRP-LD and masquerade) in control larvae and larvae exposed to the pathogen. Transcripts for a...
متن کاملProduction of the Catechol Type Siderophore Bacillibactin by the Honey Bee Pathogen Paenibacillus larvae
The Gram-positive bacterium Paenibacillus larvae is the etiological agent of American Foulbrood. This bacterial infection of honey bee brood is a notifiable epizootic posing a serious threat to global honey bee health because not only individual larvae but also entire colonies succumb to the disease. In the recent past considerable progress has been made in elucidating molecular aspects of host...
متن کاملDiverse origins of tetracycline resistance in the honey bee bacterial pathogen Paenibacillus larvae.
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. ...
متن کاملAnalysis of pMA67, a predicted rolling-circle replicating, mobilizable, tetracycline-resistance plasmid from the honey bee pathogen, Paenibacillus larvae.
This work characterizes a recently discovered natural tetracycline-resistance plasmid called pMA67 from Paenibacillus larvae--a Gram-positive bacterial pathogen of honey bees. We provide evidence that pMA67 replicates by the rolling-circle mechanism, and sequence comparisons place it in the pMV158 family of rolling-circle replicons. The plasmid contains predicted rep, cop, and rnaII genes for c...
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ژورنال
عنوان ژورنال: Apidologie
سال: 2018
ISSN: 0044-8435,1297-9678
DOI: 10.1007/s13592-018-0586-y