当前位置: 首页 > 文章 > 甲磺隆和草甘膦对空心莲子草乙酰乳酸合酶活性和莽草酸含量的影响 植物保护学报 2005,32 (2) 185-188
Position: Home > Articles > Effects of metsulfuron-methyl and glyphosate on acetolactate synthase activities and shikimate levels of Alternanthera philoxeroides Journal of Plant Protection 2005,32 (2) 185-188

甲磺隆和草甘膦对空心莲子草乙酰乳酸合酶活性和莽草酸含量的影响

作  者:
娄远来;邓渊钰;沈晋良;徐朗莱;沈文飚
单  位:
南京农业大学农业部病虫监测与治理重点实验室;南京农业大学生命科学院;江苏省农业科学院 南京210014;江苏省农业科学院
关键词:
空心莲子草;甲磺隆;草甘膦;乙酰乳酸合酶;莽草酸
摘  要:
为研究甲磺隆和草甘膦对空心莲子草的作用机理,探索其最佳的使用技术,采用有效成分为30 g/hm~2和60 g/hm~2的甲磺隆处理空心莲子草,能明显抑制其茎和根乙酰乳酸合酶的比活性;有效成分为1537.5g/hm~2和3075g/hm~2的草甘膦处理则能明显抑制空心莲子草莽草酸含量的积累;施用甲磺隆和草甘膦对空心莲子草生长的抑制作用随药剂浓度的提高而增大。二次施用草甘膦(间隔30天)的结果表明,低剂量处理对抑制空心莲子草根组织莽草酸含量的积累更明显。
译  名:
Effects of metsulfuron-methyl and glyphosate on acetolactate synthase activities and shikimate levels of Alternanthera philoxeroides
作  者:
LOU Yuan-lai SHEN Jin-liang Key Lab of Monitoring and Management of Plant Diseases and Insects,Ministry of Agriculture,Nanjing Agricultural University,Nanjing 210095,China; LOU Yuan-lai DENG Yuan-yu Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China; XU Lang-lai SHEN Wen-biao College of Life Sciences,Nanjing Agricultural University,Nanjing 210095,China
关键词:
Alternanthera philoxeroides;;metsulfuron-methyl;;glyphosate;;acetolactate synthase;;shikimate
摘  要:
Metsulfuron-methyl sprayed with dosages at 30g ai/hm~2 and 60g ai/hm~2 remarkably inhibited acetolactate synthase (ALS) activities in both stems and roots of Alternanthera philoxeroides.Shikimate accumulation was strongly diminished by using glyphosate at dosages of 1537.5g/hm~2 and 3075/hm~2. Meanwhile,the growth rate decrement of Alternanthera philoxeroides was counteracted with the increase of dosages of metsulfuron-methyl and glyphosate.When sprayed glyphosate twice (between 30 days),the inhibition of shikimate content in root tissues was remarkably accelerated by the low glyphosate dosage in comparison with that of the high dosage.

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