Degradation of atrazine in soil by Streptomyces
Degradation of atrazine in soil by Streptomyces
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DOI：
10.1080/03601239809373128
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发表时间：
1998-01-01
影响因子：
2
通讯作者：
Torrents, A
中科院分区：
文献类型：
--
作者：
Fadullon, FS;Karns, JS;Torrents, A
Streptomyces sp. PS1/5在以几丁质和玉米秸秆混合作为碳氮源生长时，能够降解土壤中的莠去津。三过磷酸钙的添加对链霉菌PS1/5降解阿特拉津的作用有较大的促进作用，石灰的添加对阿特拉津的降解作用较小。硫酸亚铁对阿特拉津的降解有较小的积极作用。在25℃条件下，以8%甲壳素、2%玉米秸秆和0.1%三倍过磷酸钙为改性剂，30 d内将土壤中的阿特拉津从20 g g(-1) （20 ppm）降至6 ppm。结果表明，利用链霉菌属细菌降解污染土壤中的农药残留是可行的。
Streptomyces sp. PS1/5 was able to degrade atrazine in soil while growing on a mixture of chitin and ground cornstalks as carbon and nitrogen source. The addition of triple superphosphate greatly stimulated the degradation of atrazine by Streptomyces sp. PS1/5, while the addition of lime stimulated the degradation to a lesser degree. Ferrous sulfate had a small positive effect on atrazine degradation. Atrazine in soil was reduced from 20 g g(-1) dry soil (20 ppm) to 6 ppm within 30 days in soil amended with 8% chitin, 2% cornstalks and 0.1% triple superphosphate and incubated at 25 degrees C. The results indicate that it may be possible to use bacteria of the genus Streptomyces to degrade pesticide residues in contaminated soils.