丛枝菌根真菌侵染Bt玉米及对其生长的影响

生态学杂志 ›› 2011, Vol. 30 ›› Issue (06): 1163-1168.

丛枝菌根真菌侵染Bt玉米及对其生长的影响

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

1华南农业大学热带亚热带生态研究所，广州510642；2 华南农业大学农业部生态农业重点开放实验室，广州510642；3 广东省高等学校农业生态与农村环境重点实验室，广州 510642

出版日期:2011-06-08 发布日期:2011-06-08

Effects of arbuscular mycorrhizal fungi colonization on Bt corn growth.

REN Zhen1,2,3, WANG Jian-wu1,2,3**, FENG Yuan-jiao1,2,3, RUAN Yang1,2,3, LAI Jian-ning1,2,3

1Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China;2Key Laboratory of Ecological Agriculture of Ministry of Agriculture, South China Agricultural University, Guangzhou 510642, China; 3Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou 510642, China

Online:2011-06-08 Published:2011-06-08

摘要/Abstract

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。

关键词: 普通Kriging法, 区域化变量, 变差函数, 地统计学

Abstract: Taking two Bt-corns 5422Bt1 (Bt11) and 5422CBCL (Mon810) that express Cry1Ab and their near-isogenic non-Bt corn (5422) as test materials, this paper studied the effects of inoculating G. mosseae on their growth. There was an obvious difference in the colonization rate of G. mosseae on the three corn varieties, and the general trend was 5422Bt1 > 5422CBCL > 5422. Inoculating G. mosseae promoted corn growth, and the effect varied with corn variety and its development stage. For variety 5422, its aboveground biomass and total dry weight at bell stage increased significantly; for variety 5422Btl, its leaf number and stem diameter at jointing stage and its leaf number, stem diameter, aboveground biomass, and total dry weight at bell stage were significantly higher than those of the control; and for variety 5422CBCL, its leaf number at jointing stage and its underground biomass at bell stage also increased significantly. The AMF-dependence and the AMF-inoculation effect on the three corn varieties were in the order of 5422Bt1 > 5422CBCL > 5422, suggesting that the two Bt-corns had better compatibility with G. mosseae. Compared with non Bt-corn, Bt-corn had stronger positive responses in its growth to the AMF inoculation.

Key words: Ordinary Kriging method, Local variable, Variograms, Geostatistics

任禛,王建武,冯远娇,阮洋,赖健宁. 丛枝菌根真菌侵染Bt玉米及对其生长的影响[J]. 生态学杂志, 2011, 30(06): 1163-1168.

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