Novel bacterial pathogen Acaricomes phytoseiuli causes severe disease symptoms and histopathological changes in the predatory mite Phytoseiulus persimilis (Acari, Phytoseiidae)

Journal of Invertebrate Pathology
Conny SchütteMarcel Dicke

Abstract

Adult female Phytoseiulus persimilis Athias-Henriot (Acari, Phytoseiidae) of a laboratory population show a set of characteristic symptoms, designated as non-responding (NR) syndrome. Mature predators shrink, cease oviposition and die. They show a lower degree of attraction to herbivore-induced plant volatiles and a greater tendency to leave prey patches carrying ample prey. Moreover, predators may carry excretory crystals in the legs, may cease prey consumption and have a low excretion rate. Here, we satisfy Koch's postulates for a strain of Acaricomes phytoseiuli (DSM 14247) that was isolated from symptomatic female P. persimilis of the NR-population. Adult female P. persimilis were either exposed to a bacterial inoculum suspension (treatment) or to sterile distilled water (control) for a period of 3 days. Control and treated predators were examined for the occurrence of six symptoms characteristic for the NR-syndrome and the presence of A. phytoseiuli after inoculation. The latter was done by re-isolation of A. phytoseiuli from individual predators and predator feces placed on nutrient agar, by PCR-based identification and by histopathological studies of individual predators. The NR-syndrome was clearly induced in those pred...Continue Reading

References

Aug 1, 1996·Experimental & Applied Acarology·J A Breeuwer, G Jacobs
Jan 28, 1998·Annual Review of Entomology·G Poinar, R Poinar
Dec 3, 2002·Journal of Microbiological Methods·Claudia Schabereiter-GurtnerSabine Rölleke
Sep 11, 2003·Proceedings. Biological Sciences·Andrew R WeeksRichard Stouthamer
May 20, 2004·Journal of Evolutionary Biology·F ValaM W Sabelis
Feb 2, 2006·International Journal of Systematic and Evolutionary Microbiology·Rüdiger PukallMarcel Dicke
Aug 11, 2006·Experimental & Applied Acarology·Thomas V M Groot, Johannes A J Breeuwer
Jun 8, 2007·Experimental & Applied Acarology·Monika Enigl, Peter Schausberger

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Citations

Sep 3, 2008·Experimental & Applied Acarology·Conny Schütte, Marcel Dicke
May 26, 2015·Parasitology·Kittipong ChaisiriBenjamin L Makepeace
Jul 9, 2020·Experimental & Applied Acarology·Jason C Sumner-KalkunM Alejandra Perotti

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