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来源：百度知道 编辑：UC知道 时间：2024/05/14 03:46:47
通过对含硫盐碱土壤进行菌种培养分离，筛选出具有氧化硫代硫酸盐的硫细菌，通过对其进行菌落形态观察和生理生化特征测定，确认为硫杆菌属。结果表明：这两菌株均为革兰氏阴性菌，短杆状，不产芽孢，有一层粘的荚膜。初步确定为硫杆菌属的脱氮硫杆菌和排硫硫杆菌。对其生长条件的实验研究表明这两株菌生长繁殖均迅速，其最佳培养基和培养条件为：以CO2为碳源，最适宜的pH为中性，属中性菌，有一定的耐碱性；生长最适宜盐度范围为0～2%；最佳培养温度为28℃；在一定负荷条件下，溶解氧存在一个最佳值。在最佳培养条件下，该菌种对单质硫有较好的去除效果。实验结果对于改良盐碱土壤的生物处理方法具有重要的意义和实际应用价值。

cultured strain菌种培养
sulfosalt alkali soil含硫盐碱土壤
oxidated thiosulfate sulfur bacteria氧化硫代硫酸盐的硫细菌
colonial morphology菌落形态
physiological and biochemical characteristics生理生化特征
thiobacillus硫杆菌属
strain菌株
gramnegative bacteria革兰氏阴性菌
short rhabditiform短杆状
gemma芽孢
denitrifying脱氮
T.thioparus排硫硫杆菌
culture medium培养基

Separating cultured strain from sulfosalt alkali soil has screened out oxidated thiosulfate sulfur bacteria, which have been classified as thiobacillus by observing colonial morphology and mensurating physiological and biochemical characteristics. It is shown that the two strains are gramnegative bacteria, which are short rhabditiform, of sterile gemma, and have a layer of viscous capsule.It is preliminarily determined that they are denitrifying thiobacillus and T.thioparus. The research on the experiments on their growth conditions shows that these two kinds of bacteria can grow and breed swiftly. Their best cul