Department of Microbiology and Molecular Genetics, University of the Punjab, Lahore 54590, Pakistan.
Biotechnol Lett. 2010 Sep;32(9):1255-9. doi: 10.1007/s10529-010-0291-z. Epub 2010 May 9.
Bacillus licheniformis, B. subtilis, B. cereus, Bacillus pumilus and Exiguobacterium sp., which were resistant up to 20 mg Na(2)SeO(3)/ml in nutrient broth and 40 mg/ml on nutrient agar plates, were isolated from contaminated soil and water. They grew from 25 to 45 degrees C and pH 5 to 9. They had multiple metal and antibiotic resistances. All strains reduced selenite (SeIV) to elemental selenium (Se0) aerobically with a maximum reduction of 97% by B. pumilus after 144 h with Na(2)SeO(3) at 500 microg/ml.
地衣芽孢杆菌、枯草芽孢杆菌、蜡样芽孢杆菌、短小芽孢杆菌和极端小球菌，在营养肉汤中可耐受高达 20mg/ml 的亚硒酸钠，在营养琼脂平板上可耐受高达 40mg/ml，它们从污染的土壤和水中分离得到。它们在 25 到 45 摄氏度和 pH 值 5 到 9 的条件下生长。它们具有多种金属和抗生素抗性。所有菌株都可以将亚硒酸盐（SeIV）在有氧条件下还原为元素硒（Se0），其中短小芽孢杆菌在 500μg/ml 的亚硒酸钠作用下，144 小时后最大还原率达到 97%。
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