重金属胁迫对长喙田菁茎瘤豆血红蛋白和叶绿素含量的影响  

The Effect of Pb/Zn Tailings on Chlorophyll and Leghemoglobin Contents of Sesbania rostrata Stem Nodules

作　　者：袁剑刚[1] 杨中艺[1] 

机构地区：[1]中山大学生命科学学院∥生物防治国家重点实验室,广东广州510275

出　　处：《中山大学学报（自然科学版）》2002年第3期127-128,共2页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家 8 6 3计划资助项目 (2 0 0 1AA6 45 0 10 ) ;国家自然科学基金资助项目 (30 0 70 12 6 )

摘　　要：盆栽试验种植长喙田菁 ,栽培介质分别为纯铅锌尾矿 (T)、改性铅锌尾矿 (ST )和纯土壤 (S) ,对各处理长喙田菁茎瘤的豆血红蛋白和叶绿素含量进行分析。结果表明 ,T、ST组的茎瘤数量分别为S组的 5 5 %和 89% ,茎瘤生物量则分别为S组的 6 6 %和 90 % ,但各实验组长喙田菁茎瘤的豆血红蛋白和叶绿素含量无显著性差异 ,暗示尾矿环境对茎瘤的固氮活性可能无显著影响。Pot experiment was conducted to evaluate the chlorophyll and leghemoglobin contents of Sesbania rostrata growing in Pb/Zn tailings(T), modefied Pb/Zn tailings(ST) and red soil(S). The results showed that the amount of stem nodules in T and ST was 55% and 89% of that in S, respectively, while the fresh weight of stem nodules was 66% and 90% respectively. There were no significant differences ( P >0 05) in both the values of chlorophyll and leghemoglobin content among the three groups, which implied that Pb/Zn tailings had no significant effect on the N-fixing activity of stem nodules.

关 键 词：重金属胁迫 长喙田菁 茎瘤 豆血红蛋白 红绿素 铅锌尾矿 生物固氮体系 固氮活性 生物量 

分 类 号：X503.231[环境科学与工程—环境工程] Q945.13[生物学—植物学]