本文選題：抗鋅菌株 + 菌株篩選　； 參考：《生物技術通報》2017年10期

【摘要】：從受重金屬污染土壤中篩選得到1株對鋅有較高抗性的微生物,經(jīng)鑒定該菌株為芽孢桿菌屬。在不同實驗條件下考察該菌株去除Zn2+的性能,結果表明:在Zn2+初始濃度為300 mg/L,溫度為37℃,接種量為5%的情況下,去除Zn2+的效果最好,12 h去除率可達到94%;進一步利用盆栽試驗,研究了添加不同濃度菌株對印度薺菜富集土壤中鋅的影響。結果發(fā)現(xiàn),在添加量為40 m L菌液下(1×109 CFU/m L),印度芥菜地上部分和地下部分鋅含量,相較對照組分別提高56.1%和24.3%,這說明菌株可以提高鋅弱酸提取態(tài)的含量。
[Abstract]:1 strains with high resistance to zinc were screened from the soil contaminated by heavy metals. The strain was identified as Bacillus. The results showed that the strain was removed from Zn2+ under different experimental conditions. The results showed that the removal of Zn2+ was best when the initial concentration of Zn2+ was 300 mg/L, the temperature was 37, and the inoculation amount was 5%, and the removal of 12 h was the best. The effect of the rate reached 94%, and the effect of adding different concentration strains on zinc in the rich soil of India's purse was further studied by pot experiment. The results showed that the content of zinc in the part and underground part of India mustard was 56.1% and 24.3%, respectively, under the addition of 40 m L bacteria (1 x 109 CFU/m L), which indicated that the strain could be improved. The content of the extraction state of zinc weak acid.

【作者單位】： 常州市生物技術發(fā)展中心;南京工業(yè)大學生物與制藥工程學院;
【基金】：江蘇省高校自然科學研究重大項目(15KJA530002)
【分類號】：X172;X53
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本文編號：1793507