Studies on the expression of potential forest-soil microbes, based on the ammonia fungi

基于氨真菌的潜在森林土壤微生物表达研究

• 批准号: 63560141
• 负责人: SUZUKI Akira
• 金额: $ 1.6万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63560141/
• 关键词: ammonia fungi; forest soil microbes; forest soil animals; potential microbes; biomass; concentration of NH_4-N; pH; water content; 森林土壌微生物; 潜在微生物; 細菌量; クリスタルバイオレット耐性細菌量; 細胞性粘菌量; 含水量; 森林土壌全窒素量; 全炭素量; 有機態窒素量; ammonia fungi; forest soil microbes; forest soil animals; potential microbes; biomass; concentration of NH_4-N; pH; water content; 森林土壌微生物; 潜在微生物; 細菌量; クリスタルバイオレット耐性細菌量; 細胞性粘菌量; 含水量; 森林土壌全窒素量; 全炭素量; 有機態窒素量

As a step to elucidate the mechanism of expression of potential forest-soil microbes, the following censuses and experiments were carried out.The biomasses of soil organisms, namely fungi, bacteria, crystal violet-resistant bacteria, cellular slime molds, oribatid mites, nematodes, and enchytraid worms decreased immediately after the application of urea(800 g/m^2) to the forest soil. The biomasses of bacteria, crystal violet-resistant bacteria, and slime molds in urea-treated soil showed higher values than those in nonurea-treated soil (=control) at about the same time as the occurrence of the early succession of ammonia fungi, while, those of oribatid mites and soil Arthropleona showed higher values than those in the control throughout the period of the occurrence of the ammonia fungi.Amblyosporium botrytis grew vigorously under neutral to alkaline conditions at both high concentration of NH_4-N and high water content. Asobolus denudatus grew vigorously under neutral to alkaline conditions. Coprinus phlyctidosporus grew vigorously at a high concentration of NH_4-N. Lyophyllum tylicolor and Hebeloma vinosophyllum showed tolerance to a high concentration of NH_4-N.These and the results obtained from the correlation analyses among the degree of the occurrence of the ammonia fungi, biomasses of other soil organisms and the condition of the soil suggest that the ammonia fungi are a kind of the groups of the potential forest-soil microbes, which begin to propagate at the ecological gap, namely the condition under the decrease of biomasses of soil organisms caused by a high concentration of NH_4-N at an alkakaline condition, and then grow vigorously in these soil because of their adaptation to these environments.

As a step to elucidate the mechanism of expression of potential forest-soil microbes, the following censuses and experiments were carried out.The biomasses of soil organisms, namely fungi, bacteria, crystal violet-resistant bacteria, cellular slime molds, oribatid mites, nematodes, and enchytraid worms decreased immediately after the application of urea(800 g/m^2) to the森林土壤。在尿素处理的土壤中细菌，抗紫罗兰色的细菌和粘液霉菌的生物量显示出比未灌肠处理的土壤（=对照）在氨气真菌的早期继任的同一时期大约相同的值，而在ammonia真菌的早期继任中，遍及杂志的杂物和土壤arthropleona的范围比那些杂志的arthop arthropleona均与那些周期相比。真菌。在高浓度的NH_4-N和高水含量下，在碱性条件下，在碱性条件下剧烈生长。阿斯波鲁斯·迪达图图斯（Asobolus demobolus demobolus dembolus）在中立在碱性条件下剧烈生长。 phlyctidosporus在高浓度的NH_4-N处剧烈生长。 lyophyllum tylicolor和hebeloma vinosophlillum表现出对高浓度NH_4-N的耐受性。生态差距，即在碱性条件下高浓度的NH_4-N引起的土壤生物生物量减少的状况，然后在这些土壤中剧烈生长，因为它们适应了这些环境。