丛枝菌根真菌对海州香薷生长及其Cu吸收的影响

被引：22

作者：

王发园

林先贵

尹睿

机构：

[1] 中国科学院南京土壤研究所生物与生化研究室,中国科学院南京土壤研究所生物与生化研究室,中国科学院南京土壤研究所生物与生化研究室南京,南京土壤研究所-香港浸会大学土壤与环境联合开放实验室,南京,河南科技大学,洛阳,南京,南京土壤研究所-香港浸会大学土壤与环境联合开放实验室,南京,南京,南京土壤研究所-香港浸会大学土壤与环境联合开放实验室,南京

来源：

环境科学 | 2005年 / 05期

关键词：

海州香薷; 丛枝菌根真菌; 铜; 生物修复;

D O I：

10.13227/j.hjkx.2005.05.035

中图分类号：

X173 [环境植物学];

学科分类号：

摘要：

在温室盆栽条件下研究了接种丛枝菌根(arbuscularmycorrhiza,AM)真菌对灭菌土壤中海州香薷生长及其Cu吸收的影响.试验设0,50,100,200,400mg.kg-1等5个外施Cu水平,Glomuscaledonium90036(36)、AcaulosporamelleaZZ(ZZ)2种菌剂处理和1个不接AM真菌的对照处理(CK).苗后60d收获植株.结果表明,尽管菌根侵染率随Cu水平的升高而降低,但都高达50%以上,说明AM真菌易于侵染海州香薷.36和ZZ处理在各Cu水平下都显著提高了海州香薷地上和根系干重.在200mg.kg-1及以下各Cu水平时,2种菌剂处理提高海州香薷地上部分Cu浓度,在400mg.kg-1Cu水平时,地上部分Cu浓度在36、ZZ和CK之间没有显著差异.在施Cu水平为0mg.kg-1时,海州香薷根系Cu浓度在36、ZZ和CK之间差异不显著,在50mg.kg-1及以上各Cu水平时,36和ZZ降低海州香薷根系Cu浓度.36和ZZ处理在各Cu水平提高地上部分Cu吸收量,在100mg.kg-1Cu水平时提高根系Cu吸收量.总之,接种AM真菌可以促进海州香薷向地上部转运Cu,提高其地上部分Cu吸收量.

引用

页码：174 / 180

页数：7

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