广西八一锰矿废弃地土壤蚕豆根尖细胞微核监测  

Monitoring of soil pollution of Bayi manganese mine wasteland in Guangxi using micronucleus of Vicia faba L.root-tip cells

作　　者：王任翔[1,2,3] 梁士楚[1,2,3] 赖燕平[1,2,3] 苏以丽[1] 谢彦军[1] 

机构地区：[1]广西师范大学生命科学学院,广西桂林541004 [2]广西环境工程与保护评价重点实验室,广西桂林541004 [3]广西师范大学珍稀濒危动植物生态与环境保护省部共建教育部重点实验室,广西桂林541004

出　　处：《广西农业科学》2010年第9期943-946,共4页Guangxi Agricultural Sciences

基　　金：广西环境工程与保护评价重点实验室研究基金项目(桂科能0802k012);广西北部湾重大专项项目(2010GXNSFE013003)

摘　　要：采用蚕豆(Vicia fabaL.)根尖细胞微核技术,研究广西八一锰矿废弃地4种作物(甘蔗、茶叶、柑橘和花生)种植土壤的污染状况及安全性。结果表明,4种作物种植地土壤的蚕豆根尖细胞微核率均显著高于蒸馏水对照组,且上层(0～20cm)高于下层(20～40cm);上层土壤属中度污染,下层土壤属轻度污染;由土壤重金属污染引起的蚕豆根尖细胞微核畸变多达9种。说明广西八一锰矿废弃地土壤中含有遗传毒性物质,在其上不宜直接种植人畜食用的农作物,以免土壤重金属通过食物链进入躯体危害健康。The present study aimed to monitor the soil pollution and safety of Bayi manganese mine wasteland in Guangxi using micronucleus of Vicia faba L.root-tip cells.Soil samples were taken from sugarcane,tea,citrus and peanut fields.The Vicia faba L.root-tip cells treated with the four soil samples showed significantly higher micronucleus frequency compared to those treated with distilled water.The micronucleus frequency of Vicia faba L.root-tip cells treated with the upper soil（0-20 cm） was higher than that treated with the lower soil（20-40 cm）.It revealed that the upper soil was moderately polluted and the lower soil was slightly polluted.Nine kinds of micronucleus aberrations in Vicia faba L.root-tip cells were found which were caused by heavy metals.It was indicated that the soils of Bayi manganese mine wasteland contained some genetically toxic substances.Therefore,it was not suitable for planting crop directly both for animals and human being lest the heavy metals in soil endanger people＇s health through food chain.

关 键 词：蚕豆 细胞微核技术 锰矿废弃地 土壤污染 广西 

分 类 号：X53[环境科学与工程—环境工程]