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Egg masses and females of Meloidogyne incognita from a tomato (Lycopersicon esculentum Mill. cv. Falcon) field from Central Anatolia of Turkey, were collected and examined for the presence of fungi. Of the 138 egg masses of M. incognita 35.5% were colonized by one or more of 9 species of genera Arthrobotrys, Cylindrocarpon, Fusarium, Paecilomyces, Plectosphaerella, Rhizoctonia and Verticillium while 31.8% of the 138 females were colonized by 6 species, from the same genera except Paecilomyces and Plectosphaerella. Fusarium oxysporum was by far the predominant species in both the egg masses and females of M. incognita. Introduction Biological control of plant-parasitic nematodes using nematophagous or nematode-destroying fungi has received considerable attention recently, because of the urgent need for alternatives to replace synthetic nematicides that are being phased out due to environmental concerns (Kerry 1990). Nematophagous fungi are microfungi that can capture, kill and digest nematodes. They use special mycelial structures, the so-called traps, or spores to trap vermiform nematodes or hyphal tips to attack nematode eggs and cysts before penetration of the nematode cuticle, invasion and digestion (Nordbring-Hertz et al. 2006). Meloidogyne incognita (Kofoid and White 1919) Chitwood, 1949 is a nematode, under the family Heteroderidae. Mature females are saccate (pear-shaped) but males are vermiform. It is an important plant parasite classified in Plant Pathology as in root-knot nematodes, as they prefer to attack the root of their host plant (Williams 1973). When M. incognita attacks the roots of plants, it sets up a feeding location, where it deforms the normal root cells and establishes giant cells. The roots become gnarled or nodulated, forming galls, hence the term “root-knot nematode (RKN)”. It is commonly called the “southern root-knot nematode” or the “cotton root-knot nematode”. This parasitic roundworm has worldwide distribution and numerous hosts. These include most cultivated crops and ornamentals (Potter and Olthof 1993). Since nematophagous fungi were first discovered in soil in 1852 (Fresenius 1852), more than 200 species of fungi have been identified as colonizers of cysts, females and eggs of plant parasitic nematodes. Less than 20 species of fungi were found colonizing eggs of Meloidogyne spp. (De Leij and Kerry 1991, Chen et al. 1996, Khan and Akram 2000). Relatively fewer species of fungi have been identified as colonizers of females of Meloidogyne spp. (Jatala 1986). The most common fungal genera included Cylindrocarpon, Fusarium, Gliocladium, Paecilomyces, Phoma and Verticillium (Clovis and Nolan 1983). The percentage of eggs of RKN colonized by fungi ranged from 29 to 50 (Morgan-Jones et al. 1984, Chen et al. 1996). Two possible routes for *<mkarakas@science.ankara.edu.tr>.

Fungi associated with egg masses and females of plant parasitic nematode Meloidogyne incognita (Nematoda: Heteroderidae)