CHARACTERISTICS OF BACTERIA IN THE FOREST SOILS UNDER NATURAL VEGETATION

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概要

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• Characteristics of the predominant bacteria isolated in November and May from the forest soils of both dry and wet types under natural vegetation were studied. Although Gram-negative rods were the most abundant bacteria in both soil types and in both seasons, their contents were less and other bacteria especially spore-forming ones increased in May. Among Gram-negative rods in the soil of the dry type in November, the most predominant was those with nonchromogenic rods motile with polar flagella which grew in a simple synthetic media containing glucose or p-hydroxybenzoate and ammonium as the sole carbon and nitrogen sources. In May, the ratio of the bacteria which require amino nitrogen or those with more complex nutritional requirement increased. In the soil of moderately wet type, the difference in the kinds of bacteria between the two seasons was not so clear as that in the dry type. Most of Bacillus species obtained in these soils were those requiring amino acids or other growth factors among which B. cereus was most abundant.

• 一般社団法人日本土壌肥料学会の論文

著者

• Nioh Ichio

  Aichi Experimental Forest Station Faculty Of Agriculture University Of Tokyo

関連論文

• NITROGEN FIXATION ASSOCIATED WITH THE LEAF LITTER OF JAPANESE CEDAR (CRYPTOMERIA JAPONICA) OF VARIOUS DECOMPOSITION STAGES
• MICROORGANISMS IN THE FOREST SOILS WITH DIFFERENT VEGETATION
• CHARACTERISTICS OF BACTERIA IN THE FOREST SOILS UNDER NATURAL VEGETATION

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