拜氏不动杆菌Y-2对苜蓿修复盐碱土石油污染的影响  

Effects of Y-2 Inoculation on Medicago sativa L. to Phytoremediation on Saline-alkali Soil Contaminated by Petroleum

作　　者：郇菲菲[1] 郭长虹[1] 

机构地区：[1]哈尔滨师范大学,黑龙江省分子细胞遗传与遗传育种重点实验室

出　　处：《哈尔滨师范大学自然科学学报》2014年第3期123-125,共3页Natural Science Journal of Harbin Normal University

基　　金：国家自然科学基金(31170479);黑龙江省科技攻关项目(GC12B304);黑龙江省高等学校科技创新团队建设计划项目资助(2010td10);黑龙江省自然科学基金(C201142);哈尔滨师范大学科学技术创新团队基金(KJTD2011-2)

摘　　要：在盆栽条件下研究了无油盐碱土和石油浓度为5 g/kg的盐碱土,接种植物根际促生细菌Y-2对苜蓿生物量、丙二醛和可溶性蛋白含量,以及对总石油烃(TPH)降解率的影响,以不接种为对照.实验结果表明Y-2能够在石油胁迫下显著促进苜蓿的生长,接种处理通过提高苜蓿的可溶性蛋白含量及降低植物体内MDA含量减缓了石油胁迫对植物的毒害作用,并且接种Y-2显著增加了苜蓿对石油盐碱土壤的总石油烃的降解率.In this experiment, in order to investigate the effect of inoculation with plant - growth - promoting - rhizobacteria Y - 2 on Medicago sativa L. to phytorernediation of the saline - alkali soil contaminated by petroleum, the biomass, the content of MDA and soluble protein, and the total petroleum hydrocarbons （TPH） degradation rate are measured. The result shows that inoculation with Y -2 promotes higher plant biomass at oil -stress condition. Moreover, Inoculation with Y -2 relieves the adverse effectes from the petroleum stress through increasing the content of soluble protein and decreasing MDA content. In addition, inoculation increases the degradation rate of TPH significantly and showes a great potential in the phytoremediation of the saline - alkali soil contaminated by petroleum.

关 键 词：植物根际促生菌 苜蓿 植物修复 总石油烃 

分 类 号：S156.4[农业科学—土壤学]