Isolation And Identification Of Fungi Associated With Roots Of Three Plants Species Infected With Root Knot Nematode And Evaluation Their Efficiency Of Parasitism On Eggs Of Meloidogyne Javanica In Wasit Province | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 25, Issue 2, June 2014, Pages 37-48 | ||
| Author | ||
| Saja Hussain Dilfi | ||
| Abstract | ||
| A laboratory experiment was conducted to evaluate the efficiency of some fungi that isolated from rhizosphere associated with roots of certain plants species in Wasit city, as biocontrol agents against the root-knot nematode, Meloidogyne javanica. All fungi isolated from rhizosphere soil around the roots of plants (okra, cucumber and eggplant) infected with root knot nematode in Al-Ahrar, Wasit center and Sheikh Saad locations respectively .The results showed that 17 species of fungi belonging to 10 genera were isolated from the rhizosphere soil of Okra roots, 16 species of fungi belonging to 11 genera were isolated from cucumber roots whereas 13 species of fungi belonging to ten genera were isolated from eggplant roots. Genera that presented higher frequency were Aspergillus and Fusarium in Al-Ahrar area Fusarium, Cladosporium in Wasit center whereas Aspergillus, Fusarium and Trichoderma in Sheikh Saad location. Verticellium lecanii was the most vigour fungus for eggs and the percent of parasitism was 83.57 %, and this is the first record of V. lecanii on M. javanica in Iraq, followed by the fungi Paecilomyces lilacinus 69.02 % and Trichoderma harzianum 68.06 %. Aspergillus terrus and Rhizopus sp exhibited lowest activity and the percent of parasitism were 6.44 %, 2 % respectively. Key Words: Root knot nematode, Meloidogyne javanica, Biocontrol, Fungi, Rhizosphere | ||
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