a strain of anaerobic purple sulfur bacteria was isolated in pure culture from the backwater and sludge of the fu-nan-he river.
从河道滞水和淤泥中分离出一株光合硫氧化细菌的纯培养物。
the typical versatility of purple non-sulfur bacteria in terms of dark metabolism (madigan 1988, 1998) may thus favor this physiological group over purple sulfur bacteria in lake fryxell.