CAJ | 학술논문

　　针对土壤中铅（Pb）污染的生物修复，在种植小白菜的田间Pb处理土壤中，接种1株耐 Pb铜绿假单胞菌（Pseudomonas aeruginosa）M2菌株，研究其对小白菜吸收Pb的影响。结果表明：接种M2可以降低土壤Pb污染对小白菜生长的抑制作用，促进小白菜对土壤 Pb的吸收，使接种组小白菜生物量和株高分别增加7％和12％，根际土壤Pb残留量降低7％左右；接种处理的土壤脲酶和转化酶活性在小白菜整个生长期内均较未接种组高。结合前期盆栽试验结果得出，接种耐铅铜绿假单胞菌M 2，可以促进小白菜对Pb污染土壤的修复。
　　침대토양중연（Pb）오염적생물수복，재충식소백채적전간Pb처리토양중，접충1주내 Pb동록가단포균（Pseudomonas aeruginosa）M2균주，연구기대소백채흡수Pb적영향。결과표명：접충M2가이강저토양Pb오염대소백채생장적억제작용，촉진소백채대토양 Pb적흡수，사접충조소백채생물량화주고분별증가7％화12％，근제토양Pb잔류량강저7％좌우；접충처리적토양뇨매화전화매활성재소백채정개생장기내균교미접충조고。결합전기분재시험결과득출，접충내연동록가단포균M 2，가이촉진소백채대Pb오염토양적수복。
For the bio-remediation of Pb pollution in soil ,a strain of Pb tolerant bacterium ,Pseudomonas aerugi-nosaM2 was inoculated to field cultivated pakchoi and its effects on the lead absorption by pakchoi in Pb con-taminated soil was investigated .The results showed that :M2 vaccination could reduce the inhibition of soil Pb pollution on the growth of pakchoi and promote absorption of Pb in soil ,the plant biomass and height were in-creased by 7% and 12% ,respectively .At the same time ,the soil Pb residual quantity in rhizosphere reduced a-bout 7% compared with non-inoculated groups .Throughout the growth period of pakchoi ,for the inoculated groups ,the soil urease and invertase activities were increased .In conclusion ,inoculating with Pb tolerant bacte-rium Pseudomonas aeruginosa M2 to Pb polluted soil could promote the bio-remediation of Pb by pakchoi in soil .