从湖北大冶铜矿的铜山口硫化矿矿坑水中分离得到了一株嗜酸兼性异养细菌,暂命名为DY.该菌株为革兰氏阴性细菌,短杆状,菌体大小为(0.4±0.1)μm×(1.2±0.2)μm,最适生长温度为30 ℃,最适初始生长pH值为3.5,能利用葡萄糖、乳糖、蔗糖和单质硫生长,不能利用FeSO4进行生长.其系统发育树结果表明,菌株DY与Acidiphilium cryptum(Y18446)位于系统发育树的同一分支中,相似度为99.69%.黄铜矿(CuFeS2)摇瓶细菌浸出实验显示,DY菌株单独浸出黄铜矿的能力较弱,但和嗜酸自养的氧化亚铁硫杆菌ATCC 23270混合浸矿时,与氧化亚铁硫杆菌单独浸矿相比,30 d后黄铜矿的浸出率提高了35.98%.
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