华北农学报Issue(2)：165-169,5.
盐胁迫对转TaNHX2基因玉米幼苗生长的影响
Influence of Salt Stress on Growth of Transgenic Maize Seedlings with TaNHX2 Gene
摘要
Abstract
The growth performance, morphological traits and physiology indices between transgenic and non-transgenic maize seedlings (cv. Chang 7-2) under various concentrations of NaCl stress were investigated by Hoag-land solution culture. The results showed that transgenic maize seedlings exhibited resistance to salt, and their growth performance was superior compared to the non-transgenic seedlings. With the increase of salt concentration, the seedling height, root length, fresh weight, dry weight and chlorophyll content of both transgenic maize seedlings and non-transgenic controls decreased, and MDA content increased. But the changing ranges of transgenic maize seedlings were relatively narrower. Under almost all stress concentrations, the seedling height, root length, fresh weight, dry weight and chlorophyll content of transgenic maize seedlings were significantly higher than those of non-transgenic ones, and MDA contents were lower. Therefore, transgenic maize seedlings were apparently more toler-ant to salt stress than the non-transgenic ones.关键词
转基因玉米/TaNHX2基因/盐胁迫/幼苗生长/生理指标Key words
Transgenic maize/TaNHX2 gene/Salt stress/Seedling growth/Physiology index分类
农业科技引用本文复制引用
王小丽,赵欣梅,张欢欢,董艳辉,孙毅..盐胁迫对转TaNHX2基因玉米幼苗生长的影响[J].华北农学报,2014,(2):165-169,5.基金项目
国家自然科学基金项目(31240081) （31240081）
国家转基因生物新品种培育重大专项(2013ZX08003001) （2013ZX08003001）
山西省科技攻关项目(20110311009) （20110311009）
