A5009477175- Entomopathogenic Microorganisms in Pest Control
- Insect Resistance and Genetics
- Nematode management and characterization studies
- Insect Pest Control Strategies
- Forest Insect Ecology and Management
- Insect and Arachnid Ecology and Behavior
- Insect symbiosis and bacterial influences
- Insect and Pesticide Research
- Insects and Parasite Interactions
- Insect-Plant Interactions and Control
- Plant and animal studies
- Insect behavior and control techniques
- Parasite Biology and Host Interactions
- Forest Ecology and Biodiversity Studies
- Invertebrate Taxonomy and Ecology
- Soil Carbon and Nitrogen Dynamics
- Genetics, Aging, and Longevity in Model Organisms
- RNA Interference and Gene Delivery
- Helminth infection and control
- Dengue and Mosquito Control Research
- Fungal Plant Pathogen Control
- Clostridium difficile and Clostridium perfringens research
- Fire effects on ecosystems
- Date Palm Research Studies
- Study of Mite Species
National University of Ireland, Maynooth
2014-2024
Kiel University
2001
Kiskunság National Park
1999
Van Hall Larenstein University of Applied Sciences
1999
Commonwealth Scientific and Industrial Research Organisation
1999
National University of Ireland
1998
European Molecular Biology Organization
1998
St Patrick's College
1991
Trinity College Dublin
1988-1989
Wageningen University & Research
1989
Insect parasitic nematodes were surveyed in the Republic of Ireland between October 1986 and 1987. A total 551 soil samples was tested for presence by baiting with Galleria mellonella larvae. Steinernema feltiae (= S. bibionis) affinis recovered from 7.1 3.3% samples, respectively. Heterorhabditis sp. found one sample. There a significant association locality (county) frequency nematode recovery. Nematodes more frequently sandy peaty soils than clays clay loams, but differences types not...
Abstract During 2002-2004, a survey of entomopathogenic nematodes was conducted for the first time in Iran throughout three provinces north-west country. Soil samples were tested presence steinernematid and heterorhabditid by baiting with Galleria mellonella larvae. Of 833 soil studied 27 positive (3.2%), 17 (2.0%) containing Heterorhabditis ten (1.2%) Steinernema isolates. Morphological molecular studies carried out to characterise The isolates identified as bacteriophora carpocapsae, S....
Abstract Steinernema hermaphroditum n. sp., a new entomopathogenic nematode isolated from soil samples in the Moluccan islands, Indonesia, is described. Morphological observations as well biological evidence (cross-hybridisation studies) indicate distinctness of S. sp. other spp. This species characterised by presence hermaphrodites first adult generation. Key morphological diagnostic characters include: digitate tail with mucro and glandular spermatheca filled sperm generation...
Abstract Fluoxetine is one of the most commonly prescribed medications for many behavioral and neurological disorders. acts primarily as an inhibitor serotonin reuptake transporter (SERT) to block removal from synaptic cleft, thereby enhancing signals. While effects fluoxetine on behavior are firmly established, debate ongoing whether inhibition a sufficient explanation its therapeutic action. Here, we provide evidence two additional aspects action through genetic analyses in Caenorhabditis...
Aggressive encounters occur between competitors (particularly males) throughout the animal kingdom, and in some species can result severe injury death. Here we describe for first time lethal interactions male nematodes provide evidence that expression of this behaviour is developmentally controlled. Males entomopathogenic nematode Steinernema longicaudum coil around each other, resulting injuries, paralysis frequently The probability death occurring pairs males was affected by developmental...
Animal personality, defined as consistent differences among individuals in their behaviour, is being increasingly studied it might lead to a new understanding of the evolution behaviours. Despite clear interest studying personality wide range taxa for comparative analyses, studies on invertebrates are still scarce. Here, we investigated ground beetle, Nebria brevicollis, which widespread Europe and invasive North America. We measured seven behavioural traits from an array three different...
Photorhabdus spp. are the only known terrestrial bioluminescent bacteria. We show that bioluminescence produced by these bacteria reduces scavenging activity on insect cadavers they colonize. symbiont of pathogenic nematodes Heterorhabditis Together kill insects and colonize cadaver. The function their has been subject debate, but here for first time we demonstrate an ecological benefit. In our experiments, fewer temperata -infected than uninfected were scavenged, in dark conditions where...
Nematodes of the genus Heterorhabditis carry bacteria Photorhabdus into insects including pests horticultural crops. The kill insect and provide conditions which allow for growth development nematodes. It is reported here that majority spp. strains tested contained a second bacterial species was identified as Providencia rettgeri. Injection waxmoth larvae showed P. rettgeri at least pathogenic sp. K122. Both had LD 50 values less than one cell/larva, but killed considerably faster rate K122...
Entomopathogenic nematodes of the genus Heterorhabditis are morphologically conservative, consequently majority isolates remain unassigned at species level. When a infective juvenile infects an insect host, it develops into protandrous hermaphrodite female. These first-generation females give rise to second generation which contains both males and females. Because this complex life-cycle also because uncertainty as whether second-generation amphimictic, cross-breeding studies facilitate...
Entomopathogenic nematodes (EPN) are currently marketed worldwide for use in inundative biological control, where the applied natural enemy population (rather than its offspring) is expected to reduce insect numbers. Unlike classical control establishment not crucial order achieve pest suppression. Field trials Irish forestry provided opportunity test predictions regarding of two exotic (Steinernema carpocapsae and Heterorhabditis megidis) indigenous feltiae downesi) species. Nematodes were...
Entomopathogenic nematodes of the Heterorhabditidae and Steinernematidae appear to be capable long-distance dispersal local migration. Their transmission strategies include both highly active seek-and-destroy behaviours ambusher strategies, they may sensitive sex-related factors in their own populations. host-finding abilities are poorly understood, despite fact that these fundamental success as biocontrol agents soil. Like vast numbers exotic hymenopterans other natural enemies have been...
Endospore-forming bacteria were isolated from insect-pathogenic nematodes, Heterorhabditis spp., three diverse geographical locations. Spindle-shaped sporangia of these adhere to the free-living infective stage nematode, which carries them new insect hosts, where bacterium reproduces. These isolates characterized based on phenotypic and chemotaxonomic properties 16S rRNA gene sequences. Analysis placed within genus Paenibacillus. The shared higher sequence similarities with each other...
More than 20 species of the entomopathogenic nematode Steinernema have been described; to date, all reproduce exclusively by cross-fertilization male and female individuals. sp. strain T87 from Indonesia was found consist largely self-fertile hermaphrodites. Progeny were produced morphological females both in insects (Galleria mellonella) hanging drops insect haemolymph inoculated with a single infective juvenile. Sperm present oviduct unmated females. Approximately 1% juveniles developed...