Distribution of Rare Actinomycetes in Japanese Soils

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概要

• 論文の詳細を見る

• The distribution of rare actinomycetes in 237 soil samples from various locations throughout Japan was investigated using a special isolation medium, HV agar.The populations (colony forming units) of these actinomycetes per gram of dried soil were Microtetraspora 6×10^3,Saccharomonospora 1.7×10^4,Dactylosporangium 5.4×10^4,Streptosporangium 1.2×10^5,Microbispora 1.4×10^5,Nocardioforms 1.9×10^5,and Micromonospora 6.8×10^5. Streptomycetes 2.2×10^6,and Unidentifed actinomycetes 0.9×10^6 were also observed.Their distributions seemed to be associated with environmental factors such as soil type (Land Use Classification), soil pH, humus content, and the characteristics of the humic acid. In general, the largest populations were found in soils of cultivated fields, which were rich in humus and had pH values between 6.5-7.0.However, the distribution of some genera in cultivated field soils (154 samples) was remarkable. The numbers of Microbispora and Streptosporangium were the largest in humus-rich acidic (pH 5.0-6.5) soils with low humic acid Δ log K values (black colored humic acid). Saccharomonospora was found most freqluently in relatively humuspoor alkaline (pH 7.0-7.5) soils having higher Δ log K values (brown humic acid).Dactylosporangium and Microtetraspora, Saccharomonospora, and Micromonospora were most frequently isolated from mountainous forest soils, level-land forest or cultivated field soils, and pasture soils, respectively.

• 社団法人日本生物工学会の論文
• 1988-08-25

著者

• Hayakawa Masayuki

  Department Of Fermentation Technology Faculty Of Engineering Yamanashi University

• Hayakawa Masayuki

  Department Of Applied Chemistry And Biotechnology

• NONOMURA HIDEO

  Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University

• Nonomura Hideo

  Department Of Fermentation Technology Faculty Of Engineering Yamanashi University

• Nonomura Hideo

  Department Of Applied Chemistry And Biotechnology Faculty Of Engineering Yamanashi University

• ISHIZAWA KENYA

  (Present address)Tokyo Jozo Co., Ltd.

• Ishizawa Kenya

  (present Address)tokyo Jozo Co. Ltd.

関連論文

• Numerical phenetic and phylogenetic analyses of Actinokineospora isolates, with a description of Actinokineospora auranticolor sp. nov. and Actinokineospora enzanensis sp. nov.
• A Selective Isolation Method for Actinomadura viridis in Soil
• Pollen-Baiting and Drying Method for the Highly Selective Isolation of Actinoplanes spp. from Soil
• Selective Isolation of Actinoplanes and Dactylosporangium from Soil by Using γ-Collidine as the Chemoattractant
• Chemotaxis in the Zoosporic Actinomycete Catenuloplanes japonicus
• New Methods for the Highly Selevtive Isolation of Streptosporangium and Dacrylosporangium from Soil
• New Methods for the Highly Selective Isolation of Micromonospora and Microbispora from Soil
• Humic Acid-Vitamin Agar, a New Medium for the Selective Isolation of Soil Actinomycetes
• Distribution of Rare Actinomycetes in Japanese Soils
• Efficacy of Artificial Humic Acid as a Selective Nutrient in HV Agar Used for the Isolation of Soil Actinomycetes
• Combined Use of Trimethoprim with Nalidixic Acid for the Selective Isolation and Enumeration of Actinomycetes from Soil
• Application of a Method Incorporating Treatment with Chloramine-T for the Selective Isolation of Streptosporangiaceae from Soil
• Inherent G418-Resistance in Hybridization of Industrial Yeasts
• Production of C_2-Symmetrical Phenazines by Some Actiomycetes
• Use of Chloramphenicol-Inherent Resistance in Protoplast Fusion of Industrial Yeast Strains
• Distribution of Actinoplanetes in Soils of Japan

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