A5009703736- Entomopathogenic Microorganisms in Pest Control
- Insect Resistance and Genetics
- Nematode management and characterization studies
- Insect and Pesticide Research
- Insect symbiosis and bacterial influences
- Insect Pest Control Strategies
- Genetics, Aging, and Longevity in Model Organisms
- Antimicrobial Peptides and Activities
- Neurobiology and Insect Physiology Research
- Insect and Arachnid Ecology and Behavior
- Biochemical and Structural Characterization
- Insect Utilization and Effects
- Spaceflight effects on biology
- Circadian rhythm and melatonin
- Antibiotic Resistance in Bacteria
- Cholinesterase and Neurodegenerative Diseases
- Plant tissue culture and regeneration
- Insect behavior and control techniques
- Agriculture and Biological Studies
- Transgenic Plants and Applications
- Horticultural and Viticultural Research
- Animal Genetics and Reproduction
- Pharmaceutical and Antibiotic Environmental Impacts
- Botany and Plant Ecology Studies
- Bacteriophages and microbial interactions
Eötvös Loránd University
2003-2025
Clinical Emergency Hospital Bucharest
2025
University of Szeged
2018-2022
University of Wisconsin–Madison
2015
Institut Français de la Vigne et du Vin
2013
The Ohio State University
2006-2012
University of Pannonia
2010
Saarland University
2006
University of Wisconsin–Milwaukee
2006
Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures
2006
Journal Article Isolation and activity of Xenorhabdus antimicrobial compounds against the plant pathogens Erwinia amylovora Phytophthora nicotianae Get access E. Böszörményi, Böszörményi Department Genetics, Eötvös University, Budapest, Hungary Search for other works by this author on: Oxford Academic Google Scholar T. Érsek, Érsek University West Hungary, Plant Protection, Mosonmagyaróvár, A. Fodor, Fodor HungaryDepartment Animal Sciences, The Ohio State OARDC, OH, USA Andras 1680 Madison...
Xenofuranones A (1) and B (2) have been isolated from cultures of the insect-pathogenic bacterium Xenorhabdus szentirmaii, their structures were elucidated by NMR mass spectroscopy. Both compounds show similarities to fungal furanones, biosynthesis was studied using a reversed approach feeding putative 12C precursors an overall 13C background in small-scale experiments followed gas chromatographic analysis coupled spectrometry.
The role of antibiotics produced by bacterial symbionts entomopathogenic nematodes is to suppress growth microbes in the soil environment. These are active against Gram-positive and Gram-negative bacteria, were tested mastitis isolates from dairy cows.Two bioassays adapted for Xenorhabdus antibiotics; an overlay method on agar plates, serially diluted, cell-free, cultures. antimicrobial activities liquid cultures 13 strains five species further evaluated. Antimicrobial type X. nematophila,...
The hermaphroditic nematode strain G16, isolated from soil in Gujarat, India was identified as Caenorhabditis briggsae by genetic and morphological criteria. By contrast with the Dougherty of C. briggsae, culture since 1944, behavior G 16 resembles that wild-type elegans N2. Gujarat population does not exhibit uncoordinated movement, it produces males which mate efficiently, exhibits chemotaxis, forms dauer larvae response to crowding or starvation. G16 animals grow bigger, have a shorter...
ABSTRACT Xenorhabdus nematophilus is a symbiotic bacterium that inhabits the intestine of entomopathogenic nematodes. The bacterium-nematode pair pathogenic for larval-stage insects. phase I cell type form normally associated with nematode. A variant type, referred to as II, can spontaneously under stationary-phase conditions. Phase II cells do not elaborate products type. To better define variation in X. , several strains (19061, AN6, F1, N2-4) this were analyzed new phenotypic traits. An...
The sequences of the 16S rRNA gene 40 strains bacterial symbionts isolated from nematodes Heterorhabditis spp. and seven Steinernema which were different geographical areas, as well type strain Xenorhabdus japonicus, determined compared to each other several reference members Enterobacteriaceae. data confirmed separate status two genera entomopathogenic rhabditid nematodes. clustered with Photorhabdus luminescens, while grouped species. X. japonicus Phylogenetic analysis 15 almost complete...
A Genetics folyóiratban ötven évvel ezelőtt (1974) jelent meg két későbbi Nobel-díjas (Sydney Brenner, Sir John Sulston) brit tudós ikerközleménye („A C. elegans genetikája”, „A örökítőanyaga” címekkel), melynek tudománytörténeti jelentősége volt, amit az is bizonyít, hogy a on dolgozó kutatók nyerték el 2024-es fiziológiai és orvostudományi Nobel-díjat. Ez adta alkalmat, Brenner- laboratóriumban hőskorában vendégkutatóként magyar genetikus felidézze kutatások lényegét légkörét.
ABSTRACT Twenty strains (including eight phase variant pairs) of nematode-symbiotic and insect-pathogenic Photorhabdus bacteria were examined for the production proteolytic enzymes by using a combination several methods, including gelatin liquefaction, zymography coupled to native sodium dodecyl sulfate-polyacrylamide gel electrophoresis, activity measurement with two chromogen substrate types. Four protease activities (∼74, ∼55, ∼54, ∼37 kDa) could be separated. The N-terminal sequences...
Insect-nematode-bacterium mutualistic associations provide attractive systems for discovery of inter kingdom signal compounds and antibiotics. A better understanding the biological meaning inter-specific diversity with antimicrobial activity theSteinernema-symbiont Xenorhabdus bacteria may options simultaneous applications in pathogen control. Anti-bacterial activities representative strains ofXenorhabdus budapestensis, Xenorhabdus szentirmaii, innexi, ehlersii, Xenorhabdus nematophila,...
Photorhabdus is an insect-pathogenic bacterium in which oral toxicity to insects found two distinct taxonomic groups. Using a DNA microarray and comparative genomics, we show that associated with toxin complex genes tcaABC this locus can be mobilized or deleted within different strains.
ABSTRACT As a comparison to similar study on Photorhabdus strains, 15 Xenorhabdus bacterial strains and secondary phenotypic variants of two were screened for proteolytic activity by five detection methods. Although the number intensity activities different, every strain was positive several tests. Zymography following native PAGE detected groups with different substrate affinities higher lower electrophoretic mobility that distinguished as 1 2, respectively. SDS-PAGE resolved three...
The blowfly Lucilia sericata (Meigen, 1826) (Diptera: Calliphoridae) is the primary agent of cutaneous myiasis sheep in northern Europe, southern Africa, Australia and New Zealand. As application chemicals has several disadvantages, alternative control measures traumatic livestock must be developed. In this study, use entomopathogenic nematodes (EPNs) as potential biocontrol agents against second instar larvae was considered. following nematode species were tested: Heterorhabditis...
Entomopathogenic bacteria are obligate symbionts of entomopathogenic nematode (EPN) species. These biosynthesize and release non-ribosomal-templated hybrid peptides (NR-AMPs), with strong, large-spectral antimicrobial potential, capable inactivating pathogens belonging to different prokaryote, eukaryote taxa. The cell-free conditioned culture media (CFCM) Xenorhabdus budapestensis X. szentirmaii efficiently inactivate poultry like Clostridium, Histomonas, Eimeria. To learn whether a...
The aim of this study was the development a sensitive and specific substrate for protease A (PrtA), serralysin‐like metzincin from entomopathogenic microorganism, Photorhabdus . First, cleavage three biological peptides, B chains insulin β‐lipotropin, 15 synthetic investigated. In preference hydrophobic residues Ala, Leu Val observed at positions, P2, P1′ P2′. At these positions in peptides preferred were Val, Ala respectively. They contributed to efficiency hydrolysis order > P2 Six...
Ectomyelois ceratoniae (Lepidoptera: Pyralidae) is the primary pest of pomegranates in Saudi Arabia and mostly controlled using broad-spectrum pesticides. Providing environmentally sound choices to limit reliance on chemical management a major challenge control E. and, as consequence, protection pomegranate crops from its invasion. Entomopathogenic bacteria (EPB) symbiotically associated with entomopathogenic nematodes (EPNs) are well-known biocontrol agents soil-dwelling or aerial pests....