丛枝菌根真菌侵染Bt玉米及对其生长的影响

被引:13
作者
任禛 [1 ,2 ,3 ]
王建武 [1 ,2 ,3 ]
冯远娇 [1 ,2 ,3 ]
阮洋 [1 ,2 ,3 ]
赖健宁 [1 ,2 ,3 ]
机构
[1] 华南农业大学热带亚热带生态研究所
[2] 华南农业大学农业部生态农业重点开放实验室
[3] 广东省高等学校农业生态与农村环境重点实验室
基金
广东省科技计划; 广东省自然科学基金;
关键词
Bt玉米; 丛枝菌根真菌; 侵染水平; 生长效应;
D O I
10.13292/j.1000-4890.2011.0209
中图分类号
S435.131 [玉米病害];
学科分类号
摘要
以2个不同转化事件的Bt玉米5422Bt1(Bt11)和5422CBCL(Mon810)及其同源常规玉米5422为对象,研究接种摩西球囊霉(Glomus mosseae)对Bt玉米与常规玉米生长的影响。结果表明:3个品系玉米接菌处理的菌根侵染率明显不同,菌根侵染各参数值总体呈现5422Bt1>5422CBCL>5422趋势;接种处理均促进了玉米的生长,其效应随玉米品系和生育期的不同而呈现差异,喇叭口期5422的地上部干重和总干重显著增加,拔节期5422Bt1的叶片数、茎粗以及喇叭口期的叶片数、茎粗、地上部干重、总干重显著高于对照,5422CBCL拔节期的叶片数和喇叭口期地下部干重增加显著;3个玉米品系菌根真菌依赖性与接菌效应为5422Bt1>5422CBCL>5422,2个Bt玉米品系与Glomus mosseae间的兼容性更好,接种处理对Bt玉米的生长促进作用强于常规玉米。
引用
收藏
页码:1163 / 1168
页数:6
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