Trój-troficzne interakcje pomiędzy roślinami, grzybami nicieniobójczymi i nicieniami

Abstrakt

Summary Knowledge of the title trirophic interactions is important for developmet of biomanagement strategy of root-knot nematode control. Host plant susceptibility is known to affect nematode population and plant species differ in their tolerance to nematode attack. Isolates of nematophagous fungi Pochonia chlamydosporia and Paecilomyces lilacinus differ in their pathogenicity against root-knot nematode eggs. Polish strains of P. chlamydosporia are more effective against eggs of Meloidogyne incognita then M. arenaria and M. hapla. Immature eggs of nematodes are more susceptible to parasitism by the fungi. Plant species differ also in their ability to support fungi in their rhizospheres. Healthy cabbage supports the growth of P. chlamydosporia in soil better then does tomato. Presence of nematodes increases growth of P. chlamydosporia in the rhizosphere. Polish strain of fungus was better stimulated by egg masses of M. arenaria on cabbage roots then on tomato.