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美国西部四个隐伏金矿床上的土壤中,仙影拳芽孢杆菌(Bacillus Cereus)的群体量升高。从这四个矿床的土壤剖面中发现仙影拳芽孢杆菌及矿床与背景值的高比率。这四个矿床是:科罗拉多州恩派尔(Empire)地区的明尼苏达(Minesota)脉状矿床(最大比值50:1);加利弗尼亚州沙斯塔县沙斯塔脉状矿床(最大比值3500:1);暮星(Duening star)脉状矿床(最大比值1800:1);内华达州瓦苏(Washoe)县霍格兰茨(Hog Ranch)浸染状金矿床(最大比值40000:1)。土壤中毒性金属浓度的微量增加对孢子群体量的升高可能有一定的关系。从所见到靠近这些金矿仙影拳芽孢杆菌的升高说明,要它成为一种新的找矿手段.还需进行进一步研究
Among the four hidden gold deposits in the western United States, the population of Bacillus cereus increased. The high ratios of Bacillus amyloliquefaciens and deposit to background values were found in the soil profiles of the four deposits. The four deposits are: Minesota vein deposits in Empire, Colorado (maximum 50: 1); Shasta vein deposits in Shasta County, California (maximum ratio 3500: 1); Duening star vein deposits (maximum 1800: 1); and Hog Ranch disseminated gold deposits (maximum 40000: 1) in Washoe County, Nevada. The slight increase of soil toxic metal concentration may have a certain relationship with the increase of spore population. As you can see, the rise in the genus Bacillus pumilus near these gold mines is what makes it a new prospecting tool, and further research is needed