Ecologic and Taxonomic Studies on Pythium as Pathogenic Soil Fungi : VI The Isolation Methods of Pythium
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概要
- 論文の詳細を見る
Selective media for the isolation of Pythium such as P. ultimum, P. aphanidermatum, P. spinosum, P. vexans, and P. zingiberum, and other soil-borne pathogens like Fusarium oxysporum f. lycopersici, Rhizoctonia solani and Sclerotium rolfsii were found. The media found ideal for the isolation of the specific organisms free from bacterial contamination as well as other fungi are the CMA-S50-A50, CMA-S50-P1000, PDA-S50-RB30-P300 and CMA-S50-P500. Streptomycin and penicillin at 50 ppm have been found to reduce bacterial contamination without inhibiting growth of Pythium. Moreover, PCNB at a concentration of 1000ppm in corn-meal agar eliminates other fungi without adversely affecting the development of Pythium. MARTIN's peptone-dextrose-rose bengal agar with 500 ppm PCNB has been found also to reduce greatly the number of contaminating fungi and actinomycetes. Pythium aphanidermatum, P. spinosum, P. ultimum, P. vexans, and P. zingiberum were isolated from bacteria, actinomycetes and other soil-borne fungi by using corn-meal agar containing 50 ppm streptomycin and 1000 ppm PCNB. Peptone-dextrose agar containing 30 ppm rose bengal, 50 ppm streptomycin and 500 ppm PCNB are also effective media for the isolation of Pythium from soil-borne microorganisms.
- 大阪府立大学の論文
- 1965-03-31
著者
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Ozaki Takeshi
Laboratory Of Plant Pathology College Of Agriculture
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TAKAHASHI Minoru
Laboratory of Plant Pathology, College of Agriculture
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Takahashi Minoru
Laboratory Of Plant Pathology College Of Agriculture
関連論文
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- Synthesis of Host Ribosomal RNA's in Tabacco Leaves Inoculated with Tobacco Mosaic Virus
- Ecologic and Taxonomic Studies on Pythium as Pathogenic Soil Fungi : VI The Isolation Methods of Pythium
- Ecologic and Taxonomic Studies on Pythium as Pathogenic Soil Fungi : III Population of Pythium ultimum and Other Microorganisms in Rhizosphere
- Invading Hyphae of Pythium ultimum in Squash Hypocotyls Pre-treated with Sodium Diethyldithiocarbamate
- Ecologic and Taxonomic Studies on Pythium as Pathogenic Soil Fungi : XIII. Further Studies on "Macerating Enzyme" Involved in Virulence of Pythium
- Ecologic and Taxonomic Studies on Pythium as Pathogenic Soil Fungi : IX. Effect of Inorganic Nitrogen on Vertical Distribution and Pathogenicity of Several Soil-borne Plant Pathogens
- Ecologic and Taxonomic Studies on Pythium as Pathogenic Soil Fungi : VIII. Differences in Pathogenicity of Several Species of Pythium
- Ecologic and Taxonomic Studies on Pythium as Pathogenic Soil Fungi : XII. The "Macerating Enzyme" Involved in Virulence of Pythium
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