Host-finding ability of three entomopathogenic nematode isolates in the presence of plant roots

Host-finding ability of three entomopathogenic nematode isolates in the presence of plant roots Nematology , 2003, Vol. 5(4), 601-608 Host-Ž nding ability of three entomopathogenic nematode isolates in the presence of plant roots G. Christopher C UTLER 1 ; ¤ and John M. W EBSTER Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada Received: 29 October 2002; revised: 24 March 2003 Accepted for publication: 15 April 2003 Summary – The effect of plant roots on the host-Ž nding ability of three isolates of entomopathogenic nematodes (EPN), Heterorhabditis bacteriophora D-H-Da1, Steinernema sp. Dongrae and Steinernema sp. BJ was studied. In Petri dish experiments the overall response of the infective juveniles (IJ) of these isolates differed from one another, but all were attracted to a Galleria mellonella larva and to a tomato seedling when either of these targets was presented with a blank control. The BJ and D-H-Da1 IJ aggregated more around a tomato root than a G. mellonella larva when these targets were presented separately, but showed no preference for a G. mellonella -tomato seedling combination over a blank control. Dongrae IJ showed no preference for a G. mellonella larva or tomato seedling when each was presented simultaneously in the same Petri dish. In experiments http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematology Brill

Host-finding ability of three entomopathogenic nematode isolates in the presence of plant roots

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Publisher
Brill
Copyright
© 2003 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
1388-5545
eISSN
1568-5411
D.O.I.
10.1163/156854103322683319
Publisher site
See Article on Publisher Site

Abstract

Nematology , 2003, Vol. 5(4), 601-608 Host-Ž nding ability of three entomopathogenic nematode isolates in the presence of plant roots G. Christopher C UTLER 1 ; ¤ and John M. W EBSTER Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada Received: 29 October 2002; revised: 24 March 2003 Accepted for publication: 15 April 2003 Summary – The effect of plant roots on the host-Ž nding ability of three isolates of entomopathogenic nematodes (EPN), Heterorhabditis bacteriophora D-H-Da1, Steinernema sp. Dongrae and Steinernema sp. BJ was studied. In Petri dish experiments the overall response of the infective juveniles (IJ) of these isolates differed from one another, but all were attracted to a Galleria mellonella larva and to a tomato seedling when either of these targets was presented with a blank control. The BJ and D-H-Da1 IJ aggregated more around a tomato root than a G. mellonella larva when these targets were presented separately, but showed no preference for a G. mellonella -tomato seedling combination over a blank control. Dongrae IJ showed no preference for a G. mellonella larva or tomato seedling when each was presented simultaneously in the same Petri dish. In experiments

Journal

NematologyBrill

Published: Jan 1, 2003

Keywords: STEINERNEMA ISOLATES; BIOLOGICAL CONTROL; CHEMICAL CUES; HETERORHABDITIS

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