COMPARISON OF ACTINOMYCETE FLORA BETWEEN TROPICAL AND TEMPERATE UPLAND FARM SOILS : 1. Physiological Characteristics

概要

論文の詳細を見る
Actinomycete flora in upland farm soils was compared between tropical (Thailand) and temperate (Japan) areas. The percentage of chromogenic-positive actinomycetes to the total isolates was 52.4% on the average in the soils of Thailand and 11.9% in the soils of Japan with a significant level of 0.1%, while that of protease-positive actinomycetes was 60.1% in the former soils and 46.1% in the latter with a significant level of 2.5%. The percentage of cellulase-positive actinomycetes to all isolates of actinomycetes in the soils of Thailand was very high, amounting to 77.3%, while that in the soils of Japan was 29.1%. The percentage in each soil of Thailand was higher than that in any soils of Japan. A significant difference in the composition of actinomycete flora between the tropical and temperate soils, and marked difference among major tropical great soil groups were recognized. A correlation between carbon contents in soils and the ratios of chromogenic actinomycetes to the total isolates was obtained with a significance at the 1% level. It was aiso noticed that the chromogenic group contained high percentage (70%) of colonies positive to both protease and cellulase, in contrast to the non-chromogenic group (24%). These results indicate that tropical soils contain predominantly chromogenic actinomycetes with strong protease and cellulase activities and this trend is particularly evident in soils with low carbon content.
社団法人日本土壌肥料学会の論文

COMPARISON OF ACTINOMYCETE FLORA BETWEEN TROPICAL AND TEMPERATE UPLAND FARM SOILS : 1. Physiological Characteristics

スポンサーリンク

概要

著者

関連論文

スポンサーリンク