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J. Wishart, V. Blok, M. Phillips, K. Davies (2004)
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Nematology , 2006, Vol. 8(3), 475-476 Short communication Host specificity exhibited by populations of endospores of Pasteuria penetrans to the juvenile and male cuticles of Meloidogyne hapla Keith G. D AVI ES 1 , ∗ and Valerie M. W ILLIAMSON 2 Pasteuria penetrans (Thorne, 1940) Sayre & Starr, 1985 is an obligate endoparasite of root-knot nematodes, Meloidogyne spp., with potential to be developed into a biological control agent. Endospores of the bacterium attach to the cuticle of second-stage juveniles (J2) as they migrate in the soil towards plant roots and germinate when the J2 has established a feeding site and before the first moult. Different populations of endospores of the bacterium exhibit host specificity and one population of a bacterium is able to adhere to one population of the nematode but not to another (Davies et al ., 2001). Most studies have focused on the interaction of P. penetrans with the obligate parthenogenetic root-knot nematodes M. arenaria , M. incognita and M. javanica . More recently several authors have reported that endospores also attach to M. hapla (Carneiro et al ., 1999; Wishart et al. , 2004), a species that can reproduce by amphimixis. In attachment tests between
Nematology – Brill
Published: Jan 1, 2006
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