AMINO SUGAR CONTENT, FUNGAL BIOMASS, AND β-ACETYLGLUCOSAMINIDASE ACTIVITY IN FOREST SOILS
スポンサーリンク
概要
- 論文の詳細を見る
Microflora, amino sugar content, and β-acetylglucosaminidase activity were investigated in a Wet Humus Podzolic Soil (P_<wh> soil) ; (FAO/UNESCO : Humic Podzols, U.S. Soil Taxonomy : Humods) and in a Alpine Brown Forest Soil (B_D soil) ; (FAO/UNESCO : Humic Cambisols, U.S. Soil Taxonomy : Haplumbrepts) in a field on Mt. Shiga. 1) The numbers of bacteria and fungi, and the hyphal length decreased with increasing depth of the horizon in both soils. The numbers of bacteria and fungi, and hyphal length were larger in the organic horizon than in the mineral substrantum, and the hyphal length were larger in the organic horizon than in the mineral substrantum, and the hyphal length measured several km/g dry matter in the organic horizon. These results suggest that the role of fungi in the decomposition of organic materials is very important in this area. A close correlation was observed between the microflora and β-acetylglucosaminidase activity. 2) The amino sugar content in both soils decreased with the depth of the soil horizon. However, the amino sugar content based on the amount of organic matter in the H horizon of both soils was greater than, or equal to, that in the F horizon. The ratio of amino sugar nitrogen to the total nitrogen ranged from 4.2 to 11.9% in the P_<wh> soil and 3.0 to 15.4% in the B_D soil. In the horizon which contained large amounts of amino sugar, the ratio of sugar nitrogen to the total nitrogen was also high. 3) -Acetylglucosaminidase activity in both soils decreased with the depth of the soil horizon, as in the case of the amino content. In all the horizons, -acetylglucosaminidase activity was higher in the B_D soil than in the P_<wh> soil. 4) A very high correlation was found between -acetylglucosaminidase activity and microbial respiration. This suggests that the measurement of the enzyme activity of the soil would be an index for estimating the decomposition rate of soil organic matter.
- 社団法人日本土壌肥料学会の論文
著者
-
KANAZAWA Shinjiro
Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo
-
Kanazawa Shinjiro
Department Of Agricuitural Chemistry Faculty Of Agriculture The University Of Tokyo
関連論文
- EFFECT OF FERTILIZER AND MANURE APPLICATION ON MICROBIAL NUMBERS, BIOMASS, AND ENZYME ACTIVITIES IN VOLCANIC ASH SOILS : I. Microbial Numbers and Biomass Carbon
- Microbial Distribution and Function across Wheat Rhizosphere with Oxamide and Ammonium Sulfate as N Sources
- Nutrient Distribution across Wheat Rhizosphere with Oxamide and Ammonium Sulfate as N Source
- A New Method for Measuring Microbial Biomass Nitrogen in Soils : Direct Extraction after Toluene Treatment
- Preparation of pH 3.0 Agar Plate, Enumeration of Acid-Tolerant, and Al-Resistant Microorganisms in Acid Soils
- Cloning and Sequence Analysis of czc Genes in Alcaligenes sp. Strain CT14
- CELLULASE ACTIVITY IN FOREST SOILS
- AMINO SUGAR CONTENT, FUNGAL BIOMASS, AND β-ACETYLGLUCOSAMINIDASE ACTIVITY IN FOREST SOILS
- Estimation of L-Glutaminase and L-Asparaginase Activities in Soils by the Indophenol Method
- STUDIES ON THE PLANT DEBRIS IN RICE PADDY SOILS : I. Morphological Observation and Numbers of Microbes in Fractionated Plough Layer of Paddy Soils
- STUDIES ON THE PLANT DEBRIS IN RICE PADDY SOILS : II. Microbial Respiration and Enzyme Activities of Fractionated Plough Layer of Paddy Soils
- Isolation of Cadmium-Resistant Bacteria and Their Resistance Mechanisms : Part2. Cadmium Biosorption by Cd-Resistant and Sensitive Bacteria
- DETERMINATION OF ^N ABUNDANCE OF AMINO ACIDS IN SOIL HYDROLYSATES
- Isolation of Cadmium-Resistant Bacteria and Their Resistance Mechanisms : Part 1. Isolation of Cd-Resistant Bacteria from Soils Contaminated with Heavy Metals
- BIOCHEMICAL STUDIES ON COMPOSTING MUNICIPAL SEWAGE SLUDGE MIXED WITH RICE HULL
- MICROBIAL DEGRADATION OF ^N-LABELED RICE RESIDUES IN SOIL DURING TWO YEARS' INCUBATION UNDER FLOODED AND UPLAND CONDITIONS : I.Decay of Residue and Soil Microflora
- MICROBIAL DEGRADATION OF ^N-LABELED RICE RESIDUES IN SOIL DURING TWO YEARS' INCUBATION UNDER FLOODED AND UPLAND CONDITIONS : II.Transformation of Residue Nitrogen