نتایج جستجو برای: entomopathogenic nematode

تعداد نتایج: 18024  

Journal: :Microbiological research 2009
Bin Wang Xiaoying Liu Wenping Wu Xingzhong Liu Shidong Li

Hirsutella rhossiliensis OWVT-1 has substantial potential as a biocontrol agent against plant-parasitic nematodes. Serine proteases have emerged as a potentially useful factor in the nematode-fungus interactions. When grown in liquid culture with the nematode Panagrellus redivivus as the sole nitrogen source, an extracellular alkaline protease (Hasp) was produced by the OWVT-1. The purified Has...

Journal: :Journal of bacteriology 2003
Eric C Martens Kurt Heungens Heidi Goodrich-Blair

The bacterium Xenorhabdus nematophila is a mutualist of the entomopathogenic nematode Steinernema carpocapsae. During its life cycle, the bacterium exists both separately from the nematode and as an intestinal resident of a nonfeeding nematode form, the infective juvenile (IJ). The progression of X. nematophila from an ex vivo existence to a specific and persistent colonization of IJs is a mode...

Journal: :Journal of economic entomology 2010
J D Ellis S Spiewok K S Delaplane S Buchholz P Neumann W L Tedders

In this study, we evaluated the potential use of entomopathogenic nematodes as a control for the beetle Aethina tumida Murray (Coleoptera: Nitidulidae). In particular, we conducted 1) four screening bioassays to determine nematode (seven species, 10 total strains tested) and application level effects on A. tumida larvae and pupae, 2) a generational persistence bioassay to determine whether sing...

2012
Terri L. Hoctor Timothy J. Gibb Cale A. Bigelow Douglas S. Richmond

This laboratory study examined viability and infectivity of the entomopathogenic nematode (EPN) Heterorhabditis bacteriophora Poinar in solutions containing four different turfgrass soil surfactants: Revolution (Aquatrols Corp., Paulsboro, NJ), Aqueduct (Aquatrols Corp., Paulsboro, NJ), Cascade Plus (Precision Laboratories Inc., Waukegan, IL) and OARS (Aqua-Aid Inc., Rocky Mount, NC). Infective...

Journal: :Journal of invertebrate pathology 2007
Olgaly Ramos-Rodríguez James F Campbell Edwin E Lewis David I Shapiro-Ilan Sonny B Ramaswamy

The quality of an insect as a host to an entomopathogenic nematode infective juvenile depends in part on whether or not the insect is already infected and on the stage of that infection. Previous research has shown that nematode response to hosts can change after infection and that, for uninfected hosts, CO(2) can be an important cue used by infective stage juveniles during attraction. We hypot...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2013
M C Mejia-Torres A Sáenz

The entomopathogenic nematode Heterorhabditis sp. SL0708 (Rhabditida: Heterorhabditidae) isolated from soil in Alcalá, Valle del Cauca (Colombia) was characterised ecologically using Galleria mellonella larvae (L) (Pyralidae: Galleriinae) as hosts. The effect of temperature on the viability, infectivity and reproduction, and of moisture on infectivity and storage in liquid were evaluated in inf...

2011
Parwinder S. GREWAL

Entomopathogenic nematode formulation technology has made significant progress in the past 15 years. Formulations ranging from the impregnation of nematodes on artificial sponge to highly advanced granular formulations have been developed. Major challenges have included the development of room-temperature shelf stability, ease of use, and contamination control. Enhanced storage stability has be...

Journal: :Journal of bacteriology 2001
T A Ciche S B Bintrim A R Horswill J C Ensign

The bacterium Photorhabdus luminescens is a symbiont of the entomopathogenic nematode Heterorhabditis bacteriophora. The nematode requires the bacterium for infection of insect larvae and as a substrate for growth and reproduction. The nematodes do not grow and reproduce in insect hosts or on artificial media in the absence of viable P. luminescens cells. In an effort to identify bacterial fact...

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