摘要
对玉米谷胱甘肽转移酶(GSTs)组织分布、发育期变化及乙草胺和阿特拉津对GSTs的影响进行了初步研究。结果表明,以CDNB为底物,玉米不同组织部位的GSTs活性具有显著差异,根中的GSTs活性最高,茎部次之,叶部最低;随着发育期的变化,GSTs活性也随之变化,除茎部外,随着发育期的变化,GSTs比活力也逐渐增加,GSTs活性到3叶期达到峰值,4叶期时GSTs活性逐渐降低;乙草胺对不同组织的诱导作用具有一定的差异,可以诱导叶部GSTs活性增加,对根部的GSTs活性呈抑制趋势;阿特拉津可以增加根部的GSTs活性,对叶部的GSTs活性起抑制作用。
Preliminary research has been conducted on tissue distribution, change of growth period of maize GSTs and effect of acetochlor and atrazine. The results showed that using CDNB as base substance, GSTs activity took on remarkable difference in various tissue of maize, the root was the highest, stem was second, the lowest was the leaf; with change of growth period, GSTs activity also changes accordingly. Besides stem, with development of growth period, GSTs activity increases gradually, achieves peak in the three-leaf stage, and reduces gradually in the four-leaf stage; induction action of acetochlor on different tissue has definite difference, the induction activity in the leaf GSTs increases, the activity of the roots was a reactive curb the trend; atrazine was different, the activity of the roots GSTs increased, the activity of the leaf was a reactive curb the trend.
出处
《玉米科学》
CAS
CSCD
北大核心
2008年第1期122-125,共4页
Journal of Maize Sciences
