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Effects of Long Term Storage and Above Normal Temperatures On Spore Adhesion of Pasteuria Penetrans and Infection of the Root-Knot Nematode ...

Effects of Long Term Storage and Above Normal Temperatures On Spore Adhesion of Pasteuria... EFFECTS OF LONG TERM STORAGE AND ABOVE NORMAL TEMPERATURES ON SPORE ADHESION OF PASTEURIA PENETRANS AND INFECTION OF THE ROOT-KNOT NEMATODE MELOIDOGYNE JAVANICA BY I. O. GIANNAKOU1), B. PEMBROKE1), S. R. GOWEN1) and K. G. DAVIES2) 1)Department of Agriculture, University of Reading, Earley Gate, Reading, Berks RG6 6AT, UK; 2) IACR, Rothamsted, Harpenden, Herts AL5 7JQ, UK The effects of storage and temperature on the attachment and infection of root-knot nematodes by the parasite Pasteuria penetrans were investigated. Storage for 11 years did not reduce the ability of P. penetrans to attach to juveniles of Meloidogyne javanica but it greatly decreased levels of infection compared with that obtained using freshly produced spores from the same population. Preheating spores to above normal temperatures (60°C) significantly increased attachment but reduced infection. Keywords: bacterial parasite, biological control, tomato. The obligate mesophilic bacterium Pasteuria penetrans Sayre & Starr has given partial control of root-knot nematodes Meloidogyne spp. in pot experi- ments (Channer & Gowen, 1988) and in microplots using either spore-infested soil or powdered roots containing spores (Daudi et al., 1990; Tzortzakakis & Gowen, 1994b; Trivino & Gowen, 1996). Good results have been also reported when P. penetrans was integrated with soil http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Effects of Long Term Storage and Above Normal Temperatures On Spore Adhesion of Pasteuria Penetrans and Infection of the Root-Knot Nematode ...

Giannakou, I.O.; Pembroke, B.; Gowen, S.R.; Davies, K.G.
Nematologica , Volume 43 (2): 8 – Jan 1, 1997
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/004825997X00051
Publisher site
See Article on Publisher Site

Abstract

EFFECTS OF LONG TERM STORAGE AND ABOVE NORMAL TEMPERATURES ON SPORE ADHESION OF PASTEURIA PENETRANS AND INFECTION OF THE ROOT-KNOT NEMATODE MELOIDOGYNE JAVANICA BY I. O. GIANNAKOU1), B. PEMBROKE1), S. R. GOWEN1) and K. G. DAVIES2) 1)Department of Agriculture, University of Reading, Earley Gate, Reading, Berks RG6 6AT, UK; 2) IACR, Rothamsted, Harpenden, Herts AL5 7JQ, UK The effects of storage and temperature on the attachment and infection of root-knot nematodes by the parasite Pasteuria penetrans were investigated. Storage for 11 years did not reduce the ability of P. penetrans to attach to juveniles of Meloidogyne javanica but it greatly decreased levels of infection compared with that obtained using freshly produced spores from the same population. Preheating spores to above normal temperatures (60°C) significantly increased attachment but reduced infection. Keywords: bacterial parasite, biological control, tomato. The obligate mesophilic bacterium Pasteuria penetrans Sayre & Starr has given partial control of root-knot nematodes Meloidogyne spp. in pot experi- ments (Channer & Gowen, 1988) and in microplots using either spore-infested soil or powdered roots containing spores (Daudi et al., 1990; Tzortzakakis & Gowen, 1994b; Trivino & Gowen, 1996). Good results have been also reported when P. penetrans was integrated with soil

Journal

Nematologica – Brill

Published: Jan 1, 1997

Keywords: biological control; bacterial parasite; tomato

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