EFFECTS OF NUTRIENT CONCENTRATION ON THE GROWTH OF SOIL BACTERIA
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概要
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Bacteria isolated from soil were cultivated on conventional nutrient broth at various dilutions (NB, NB/10, NB/100, NB/1,000, and NB/10,000). Based on the results obtained these organisms were divided into four groups by the range of dilution of the full strength nutrient broth (NB) on which growth was recognized; those which showed appreciable growth only on media within a range from NB to NB/1,000 were referred to as type I and those which grew well on media of a range involving further dilutions of NB, to type II. Among the isolates which did not grow well on NB, those which grew only on media within a range from NB/10 to NB/1,000 were assigned to type III, and those which grew well on media of a range involving further dilutions, to type IV. Some isolates of types II and IV showed appreciable growth even in distilled water. They were considered to have an ability of utilizing very small amounts of substances in liquid or air. In connection with these results we discussed the criteria for the identification of oligotrophs.
- 社団法人日本土壌肥料学会の論文
著者
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Suwa Yuichi
Institute For Agricultural Research Tohoku University
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Suwa Yuichi
Institute For Agricultural Research Tohoku Univerjity
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HATTORI Tsutomu
Institute for Agricultural Research, Tohoku University
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Hattori Tsutomu
Institute For Agricultural Research Tohoku Univerjity
関連論文
- EFFECTS OF NUTRIENT CONCENTRATION ON THE GROWTH OF SOIL BACTERIA
- BACTERIOLOGICAL STUDIES ON THE MINERALIZATION OF SOIL ORGANIC NITROGEN IN PADDY SOILS : II.The Role of Anaerobic Isolates on Nitrogen Mineralization
- BACTERIOLOGICAL STUDIES ON THE MINERALIZATION OF ORGANIC NITROGEN IN PADDY SOILS : I. Effects of Mechanical Disruption of Soils on Ammonification and Bacterial Number
- POPULATION DYNAMICS OF SOIL BACTERIA CULTURED UNDER DIFFERENT NUTRIENT CONDITIONS
- METHOD FOR MATHEMATICAL ANALYSIS OF BACTERIAL COUNT DATA
- Evidence of Exponential Growth of an Anammox Population in an Anaerobic Batch Culture
- DETECTION OF PROLIFERATING BACTERIA IN SOIL POPULATIONS BY THE ANALYSIS OF COLONY-FORMING CURVES
- Effects of the Agar Concentration on Colony Formation of a Soil Bacterium
- STUDY ON THE DISTRIBUTION PATTERNS OF SULFATE REDUCING BACTERIA IN A PADDY-FIELD SOIL BY Iδ-INDEX
- NITROGEN FIXATION BY OLIGOTROPHIC BACTERIA ON THE FLOOD RICE ROOTS
- Distribution and Movement of Protozoa within and among Soil Aggregates
- Evidence of Exponential Growth of an Anammox Population in an Anaerobic Batch Culture
- SIMULATION APPROACHES FOR THE APPLICATION OF THE COLONY FORMING EQUATION TO SOIL BACTERIA
- BACTERIA SENSITIVE TO NUTRIENT BROTH MEDIUM IN TERRESTRIAL ENVIRONMENTS
- A Square Bacterium from Forest Soil
- LENGTH OF INCUBATION FOR THE ESTIMATION OF THE MOST PROBABLE NUMBER OF NITRIFYING BACTERIA IN SOIL
- Towards Cataloguing Soil Bacteria : Preliminary Note