Citation
Yanti Yaacob, . and Umi Marshida Abdul Hamid, . and Zainon Mohd Noor, . (2011) Biocontrol of plant pathogen Phellinus noxius by selected actinomycetes bacteria and fungi. [Proceedings Paper]
Abstract
Phellinus noxius is a pathogenic fungus in tropical forest trees in Peninsular Malaysia especially Acacia mangium Azadirachta excels Tectona grandis and Hevea brasiliensis. The funguscauses disease in roots and the infection spreads by root contact. Application of selected Actinomycetes Bacillus subtilis Pseudomonas aeruginosa and Trichoderma sp. as biocontrol can decrease the environmental pollution by having the antagonistic mechanisms towards P. noxius. This pathogen grows faster on the Potato Dextrose Agar and also on selective media such as Malt Yeast Extract Agar. Selected actinomycetes isolated from the soil can control this plant pathogen due the hyperparasitism activities and can also colonise the pathogen hyphae. Other bacteria such as Pseudomonas aeruginosa and B. subtilis dominate P. noxius by penetrating and colonising the hyphae of this pathogen. Trichoderma sp. was also found to be effective in controlling P. noxius because it can lyse the pathogen hyphae. All these antagonists have their own bioactivities proven by the bioassay well-diffusion method evaluated by measuring the diameter of inhibition zones DIZ in centimeter cm produced on the plates.
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Abstract
Phellinus noxius is a pathogenic fungus in tropical forest trees in Peninsular Malaysia especially Acacia mangium Azadirachta excels Tectona grandis and Hevea brasiliensis. The funguscauses disease in roots and the infection spreads by root contact. Application of selected Actinomycetes Bacillus subtilis Pseudomonas aeruginosa and Trichoderma sp. as biocontrol can decrease the environmental pollution by having the antagonistic mechanisms towards P. noxius. This pathogen grows faster on the Potato Dextrose Agar and also on selective media such as Malt Yeast Extract Agar. Selected actinomycetes isolated from the soil can control this plant pathogen due the hyperparasitism activities and can also colonise the pathogen hyphae. Other bacteria such as Pseudomonas aeruginosa and B. subtilis dominate P. noxius by penetrating and colonising the hyphae of this pathogen. Trichoderma sp. was also found to be effective in controlling P. noxius because it can lyse the pathogen hyphae. All these antagonists have their own bioactivities proven by the bioassay well-diffusion method evaluated by measuring the diameter of inhibition zones DIZ in centimeter cm produced on the plates.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. QR22 M3I61 2011 vol.2 Call Number. |
| AGROVOC Term: | Phellinus |
| AGROVOC Term: | Pathogenic fungi |
| AGROVOC Term: | Pathogens |
| AGROVOC Term: | Plant diseases |
| AGROVOC Term: | Plant disease control |
| AGROVOC Term: | Biological control |
| AGROVOC Term: | Actinomycetes |
| AGROVOC Term: | Bacteria |
| AGROVOC Term: | Fungi |
| AGROVOC Term: | Pseudomonas aeruginosa |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:15 |
| URI: | http://webagris.upm.edu.my/id/eprint/12968 |
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