This study examined the tolerance of selenite for 3strains of Bacillus licheniformis SeRB-1,Bacillus sp.SeRB-2and Arthrobacter sp.SeRB-3from high-Se carbonaceous mudstone.The results demonstrate that cell growth can be stimulated by Se(IV)in lower concentration(less than 25mM),but inhibited in higher concentration(over 100mM).With the increasing of Se(IV)concentration,the doubling time got longer,rate turned smaller,and percentages of growth inhibition became larger.But,the tolerance of Se(IV)for strains wa...