The Ecology of Soil-Borne Human Pathogens

摘要: The surface of the Earth, with exception oceans and polar ice caps, is in large part covered a marvelously complex layer material called soil, from which we derive host useful products including fiber, fuels, building materials, animal forage, many mineral commodities, natural medicines (including antibiotics), most our food supply. Soil teeming life home for huge array living organisms. vast majority these organisms are microbes that ubiquitous on Earth (Table 20.1). They occur all soils, salt fresh water, harsh climates Arctic Antarctic, adjacent to deep-sea hydrothermal vents associated spreading zones between tectonic plates, throughout atmosphere, deep below oil wells where they have been isolated environment millions years (Staley 2002, p. 13).