Perkembangan bakteri pasteuria penrtrans pada nematoda puru akar (Meloidogyne spp).=Development of bacterium pasteuriia penetrans in root-knot nematodes ((Meloidogyne spp)
ABSTRAK Bacterium Pasteuria penetrans constitute one of a potential biological control agents against root-knot nematodes offer a great promise in the future. Development of P. penetrans spore in nematode was similar to fungal vegetative growth. At present, P. Penetrans is always mass cultured in it...
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| Format: | Article NonPeerReviewed |
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[Yogyakarta] : Universitas Gadjah Mada
2000
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| Online Access: | https://repository.ugm.ac.id/17418/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=171 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | ABSTRAK
Bacterium Pasteuria penetrans constitute one of a potential biological control agents against root-knot nematodes offer a great promise in the future. Development of P. penetrans spore in nematode was similar to fungal vegetative growth. At present, P. Penetrans is always mass cultured in its host {Meloidogyne spp.).
The objective of this research were to study the life cycle of the bacterium in root-knot nematode, and to characterize morphology of spore of P. penetrans.
Experimental results showed that : 1) spore of P. penetrans produced a germination tube which then penetrated the nematode body at 10 days after inoculation, 2) microcolonies were observed at 15 days after inoculation, 3) at 18 days after inoculation, vegetative hyphe became branched, segmented, and enlerged in some regions, 4) Sporogenic hypha was swollen, branched, and the tips were broken up at 23 days after inoculation, 5) spores were scattered all over nematode body at 28 days after inoculation, and 6) single endospore was ready to penetrate host body at 30 days after inoculation.
Keywords: bacterium P. penetrans � root-knot nematode |
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