EFFECT OF THE MYCORRHIZAL FUNGUS GLOMUS FASCICULATUS ON THE HOST-PARASITE RELATIONSHIP OF ROTYLENCHUL US RENIFORMIS IN TOMATO BY K. SITARAMAIAH1) and R. A. SIKORA Institut für Pflanzenkrankheiten, Universität Bonn, Nußallee 9, Federal Republic of Germany The endotrophic mycorrhizal fungus Glomus fasciculatus increases the resistance of tomato plants to Rotylenchulus reniformis infestation. Inoculation of tomato transplants or the seed bed with the fungus significantly reduced juvenile penetration and development on mycorrhizal plants compared with the controls. The development of the gelatinous matrix was delayed and fewer eggs per egg sac were produced on plants with mycorrhiza. Data showed that G. fasciculatus adversely affects R. reniformis during several phases of its life cycle. Keywords : nematode-fungus interactions, vesicular arbuscular mycorrhiza. INTRODUCTION Vesicular arbuscular mycorrhizal fungi have an antagonistic effect on the population of plant parasitic nematodes (Baltruschat, et al., 1973; Fox & Spasoff, 1972; Hussey & Roncadori, 1978; Kellam & Schenck, 1980; Sikora & Sch6nbeck, 1975). Baltruschat et al., (1973) and Sikora & Sch6nbeck (1975) obtained a significant reduction in the number of Meloidogyne incognita (Kofoid & White) juveniles that developed into adults on plants inoculated with Glomus mosseae (Nicol. & Gerd.). Fox & Spasoff (1972) found that the reproduction
Nematologica – Brill
Published: Jan 1, 1982
Keywords: nematode-fungus interactions; vesicular arbuscular mycorrhiza
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