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Plant Pathology Journal
Year: 2002  |  Volume: 1  |  Issue: 1  |  Page No.: 17 - 19

Infection of Meloidogyne javanica with Pasteuria penetrans

Amer Zareen, M. Javed Zaki, S. Shahid Shaukat and S. R. Gowen    

Abstract: Pasteuria spore attachment to root knot juveniles reduced significantly (p<0.001), as dilution factor of bacterial suspension was increased. Isolate UK 1 provided maximum spore attachment to Meloidogyne juveniles in all three dilutions of bacterial spore suspension (S, S/2 and S/4) compared to other test isolates and control. Infected juveniles by spores of all bacterial isolates (UK 1, PK 1 and PK 2) significantly (p<0.05) suppressed invasion to tomato roots. There was significant difference (p<0.001) in root invasion by nematodes exposed to the different concentrations of test bacterial isolates. Temperatures i.e. 15 and 35°C exhibited reduction in bacterial spore attachment to the root knot juveniles. Whereas 25 and 30°C favored bacterial infection of nematodes.

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