نتایج جستجو برای: steinernema bicornutum

تعداد نتایج: 742  

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...

2015
Lee-Anne O Soobramoney Jonathan Featherston Vincent M Gray

Here, we describe the draft genome sequence of Xenorhabdus sp. GDc328, an endosymbiont of the native South African entomopathogenic nematode host, Steinernema khoisanae. The total genome size of the bacteria is 4.09 Mb. The genome comprises a total of 3,608 genes with a molecular G+C content of 44.64%.

Journal: :نامه انجمن حشره شناسی ایران 0
m. hassani-kakhki m. koohi habibi t. yoshiga a. kharazi-pakdel j. karimi

the gram-negative bacterium xenorhabdus is mutualistically associated with entomopathogenic nematode, steinernema. three bacterial strains were isolated from the entomopathogenic nematodes, steinernema glaseri (steiner) and s. carpocapsae (weiser), of the white grubs, polyphylla olivieri (laporte de castelnau) in iran. this study was focused on the characterization of the bacterial strains by u...

Journal: :Journal of nematology 2010
Hao Yu Dawn H Gouge David I Shapiro-Ilan

Subterranean termites are major global pests of wood structures and wood products. Among the most economically important subterranean termite species in the US are Heterotermes aureus, Reticulitermes flavipes, and Coptotermes formosanus. In prior studies, the entomopathogenic nematode, Steinernema riobrave strain 355, exhibited a high level of virulence to H. aureus compared with other nematode...

Journal: :مجله بین المللی زیست و زیست پزشکی 0
dilipkumar aiswarya department of biotechnology, school of biosciences, periyar university, salem, india ramalingam karthik raja department of biotechnology, school of biosciences, periyar university, salem, india govindhan gowthaman department of biotechnology, school of biosciences, periyar university, salem, india paramasivam deepak department of biotechnology, school of biosciences, periyar university, salem, india govindasamy balasubramani department of biotechnology, school of biosciences, periyar university, salem, india pachiappani perumal department of biotechnology, school of biosciences, periyar university, salem, india

xenorhabdus and photorhabdus are members of the family enterobacteriaceae, and are engaged in a mutualistic association with the entomopathogenic nematodes, steinernema and heterorhabditis, respectively. in the present study, the organic fraction of ethyl acetate bacterial crude extracts of the symbiotic bacteria, xenorhabdus stockiae and photorhabdus luminescens isolated from entomopathogenic ...

Journal: :Journal of nematology 1999
X D Wang N Ishibashi

The infection behavior of Steinernema carpocapsae infective juveniles (IJ) was investigated in the presence and absence of S. glaseri. Mixed inoculation of S. carpocapsae with S. glaseri IJ significantly raised the nictation rates of S. carpocapsae IJ. Significantly more S. carpocapsae IJ migrated to the host insect in the mixed inoculation with S. glaseri IJ on agar plates. More S. carpocapsae...

Journal: :Journal of nematology 1991
K B Nguyen G C Smart

Steinernema scapterisci was more pathogenic to insects tested in the order Orthoptera than to those in the orders Lepidoptera or Hymenoptera; it was not pathogenic to earthworms. The nematode also infected and killed the mole crickets Scapteriscus acletus and S. vicinus when released four successive times at 10-day intervals in containers of soil infested with the nematode.

Journal: :Journal of nematology 1994
W J Schroeder

Steinernema carpocapsae Weiser All strain was compared to Steinernema riobravis Cabanillas, Poinar, and Raulston for control of the root weevil, Diaprepes abbreviatus (L.), in the laboratory and in potted citrus. In the laboratory bioassay, D. abbreviatus larvae were exposed to 30, 60, and 120 nematodes/cm(3) in sand. Insect mortality 1 week after application was greater (P </= 0.05) for S. rio...

Journal: :Journal of invertebrate pathology 2007
Denny J Bruck Vaughn M Walton

The objective of this study was to determine the susceptibility of the two primary direct insect pests of hazelnuts in Oregon to three species of entomopathogenic nematodes. The entomopathogenic nematodes (Heterorhabditis marelatus Pt. Reyes, Steinernema carpocapsae All and Steinernema kraussei L137) were used in laboratory soil bioassays to determine their virulence against filbertworm, Cydia ...

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