矿物类型对硅酸盐细菌解钾作用的影响

The effect of mineral types on the function of silicate bacteria

对两种硅酸盐细菌菌株K110、K195分别与石骨子、碳渣、绿豆岩、正长石4种底物的解钾作用进行了研究。结果表明:各处理的解钾量在前8 d均随培养时间的增加而增加,不同底物间解钾率差异极显著(P<0.01);硅酸盐细菌对正长石的解钾率最低为0.32%,对绿豆岩的解钾率为0.53%,对碳渣的解钾率为1.02%,对石骨子的解钾率最高为1.04%;菌株K110、K195间的解钾能力差异极显著(P<0.01)。

Two strains of silicate bacteria K110 and K195 separately reacted with four different mineral types of shiguzi, tanzha, mung bean rock and orthoclase. The reaction results indicated that the released potassium kept increasing as the reaction time increased at the first 8 days. There was an extremely significant diversity （P 〈 0.01 ） among these different mineral types. The rates of released potassium were 0.32% for orthoclase, it was the lowest, 0.53% for mung bean rock, 1.02% for tanzha, 1.04% for shiguzi, it was the highest. There was also an extremely significant diversity （P 〈0.01 ） of releasing potassium ability between strain Kll0 and strain K195.