Effects of Arbuscular Mycorrhizal Fungi(AMF) on Growth of Upland Rice under Soil Pb Contamination  

铅(Pb)污染下丛枝菌根真菌对旱稻生长的影响(英文)

作　　者：张旭红[1] 杨文杰[2] 王丽明[1] 孙长坡[3] 雷志轶[1] 

机构地区：[1]北京城市学院,北京100083 [2]环境保护部环境规划院,北京100012 [3]国家粮食局科学研究院,北京100037

出　　处：《Agricultural Science & Technology》2013年第11期1624-1628,共5页农业科学与技术（英文版）

基　　金：Supported by National Natural Science Foundation of China(81072989,40901149);Project for Promotion and Development of Private Education-Teaching and Educational Reform-Beijing City University "Construction of New Discipline-Water Supply and Drainage Engineering"~~

摘　　要：[Objective] This study aimed to investigate the effects of arbuscular mycor-rhizal fungi （AMF） on growth of upland rice under soil Pb contamination. [Method] Using potting method, the effects of Glomus mosseae on the growth of Oryzal sati-va L. under different soil Pb concentrations （0, 300, 600 mg/kg） were investigated. [Result] According to the results, the mycorrhizal colonization rate of upland rice in-oculated with Glomus mosseae was significantly reduced （P〈0.05） with the increase of Pb concentration in soil. Compared with non-inoculation treatment, inoculation of arbuscular mycorrhizal fungi significantly improved the biomass of upland rice and Pb concentration of upland rice roots with addition of 300 mg/kg Pb but significantly reduced Pb concentration of upland rice shoots, which was consistent with the re-duced R/S （P〈0.05）; with addition of 600 mg/kg Pb, inoculation of arbuscular mycor-rhizal fungi significantly improved the biomass of upland rice roots （P〈0.05） but sig-nificantly reduced Pb concentration of upland rice shoots and roots （P〈0.05）; there was no significant difference in R/S between inoculation treatment and non-inocula-tion treatment. [Conclusion] This study indicated that inoculating Glomus mosseae under certain Pb concentrations could to some extent al eviate the toxic effects of Pb on Oryzal sativa L.[目的]研究土壤重金属Pb污染下丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)对旱稻生长的影响。[方法]采用盆栽实验的方法,研究了不同土壤Pb处理水平(0,300,600 mg/kg)下,接种Glomus mosseae下旱稻(Oryzal Sativa L.)的生长效应。[结果]接种处理下,旱稻根系侵染率随着土壤Pb含量增加而显著降低(P<0.05)。与未接种处理相比,接种处理显著提高300 mg/kg Pb处理下旱稻生物量以及地下部分Pb含量,却显著降低了地上部分Pb含量,这与接种处理显著降低了R/S值的结果一致(P<0.05);600 mg/kg Pb处理下,接种显著提高了地下部分生物量(P<0.05),却显著降低了旱稻地上部分以及地下部分Pb含量(P<0.05),接种处理与未接种处理下R/S值差异不明显。[结论]该研究表明在一定的土壤Pb处理下接种Glomus mosseae可以在一定程度上缓解Pb对Oryzal Sativa L.的毒害作用。

关 键 词：Heavy metal PB Arbuscular mycorrhizal fungi Upland rice 

分 类 号：S511.6[农业科学—作物学]