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Physiological and biochemical effects of Hg~(2+) of Egeria najas were tested. 研究了不同浓度Hg2+对细叶蜈蚣草(Egerianajas)叶绿素(Chl)、超氧化物歧化酶(SOD)和过氧氢酶(CAT)的分子毒理学效应。
The removal rates of Egeria najas to TP varied consistently which declined with the time exposure to Hg2+. 随着Hg2+浓度的增大，细叶娱蛤草断枝发芽率呈下降趋势，6月份的断枝发芽率比11月份的高，因此Hg2+浓度习.;50m叭处理抑制了细叶娱蚁草断枝生殖。
The removal rates of TP by Egeria najas increased in the controlled group and the group with 0.10 mg. 结果表明:对照组和Hg2+浓度为0.;10 mg
The removal rates of TP in Water by Egeria najas under the stress of different concentrations of Hg~(2+)were studied. 采用室内培养分析测试方法,研究了在不同梯度浓度的Hg2+处理下,细叶蜈蚣草对水体总磷去除效果的动态变化情况。
By the changes of chlorophyll content, the lethal concentration of Hg to Egeria najas was 0.10-2.00mg/L. 处理48h以后，Hg~(2+)浓度人于1.;00mg/L实验组中的叶片褪绿严重而且叶片相互粘连，叶片叶绿素含量明显低于对照组，从中可以粗略看出Hg(2-)对细叶蜈蚣草的致死浓度为0
By the changes of the activity of SOD and CAT, the lethal concentration of Hg to Egeria najas was 0.10-1.00mg/L. 以SOD和CAT活性变化为根据，可以推断Hg~(2+)对细叶蜈蚣草的致死浓度为0.;10-1
The concentration of EN in the water was relative stable and the remove rate of Egeria najas to EN varied consistently especially when at 0.10,0.50,1.00 and 1.50mg/L, namely increased at first and then declined. 50 mg/L、1 .;00 mg/L和一somg/L这JL组，即先上升后下降。对照组和Hg，+浓度为0
The effects of Hg 2+ concentration on the germination number of new growth Egeria najas had no distinct rule, and Hg 2+ concentration above 1.00 mg/L would hurt the propagation of new growth Egeria najas. 不同浓度Hg2+对细叶蜈蚣草侧枝发芽个数的影响没有明显的规律;Hg2+浓度>1.;00mg/L处理已对细叶蜈蚣草侧枝生殖产生毒害作用。
The variational rules of the activity of SOD and CAT of Egeria najas is coincident for all durations of exposure, at first the activity of SOD and CAT were increased, subsequently the activity of SOD and CAT were declined. 在Hg~(2+)处理的96h内，细叶蜈蚣草SOD和CAT活性变化规律基本是一致的，只是酶活性的相对大小有所变化，即细叶蜈蚣草SOD和CAT活性随Hg~(2+)增加先上升后下降。
But the changes of the activity of CAT was more sensitive than SOD, So the changes of the activity of CAT of Egeria najas are expected to be used to biomonitor Hg pollution in the aquatic ecosystem. 2 Hg~(2+)对细叶蜈蚣草(Egeria najas)净水功能的影响
Effects of Hg~(2+) on agamogenesis of Egeria najas Hg~(2+)对细叶蜈蚣草营养繁殖的影响
Keywords Egeria najas;suspended silt;gamogenesis;superoxide dismutase（SOD）;catalase（CAT）; 细叶蜈蚣草;悬沙;营养生殖;超氧化物歧化酶;过氧化氢酶;
When the concentration of Hg2+ increased the germination rate of Egeria najas showed a degressive trend, and the germination rate of shoot fragment in June was higher than Novemb 不同浓度Hg2+对细叶娱蛤草侧枝发芽个数的影响没有明显的规律，Hg2+浓度>l .;oomg/L处理己对细叶娱蚁草侧枝生殖产生毒害作用。
Egeria najas 细叶蜈蚣草
This paper deals with the influences of Hg to the morpha. some physiological and biochemical parameters such as chlorophyll(chl), superoxide dismutase(SOD), catalase(CAT) of a kind of submerged macrophyte Egeria najas; 本文研究了Hg~(2-)对沉水植物细叶蜈蚣草外部形态、叶片叶绿素(chl)含量、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性等几个生理生化指标的影响：从水体主要理化指标和生物营养元素的变化情况研究了Hg~(2+)对细叶蜈蚣草净水功能的影响；
The karyotypes of two species of Najas. 两种茨藻属植物的染色体组型.
Naja was a Gypsy girl who lived in the forest with her tribe. 娜佳是个吉普赛姑娘，与同部落的人一起住在森林里。
Fleissig Fleissig Fleissig naja nur so,Leben nur so ,alles nur so. 耕耘、耕耘、再耕耘，唯有如此，生命才可以得以延续，一切才可以得以延续。
Egeria densa Planch often grows in ditches, ponds, and rice paddies. 常生长于沟渠、池塘、稻田等环境。
Experiments were conducted on parenchyma cells of Egeria densa acclimated to two different lighting conditions. 以接受两种不同光照条件的水蕴草薄壁组织细胞进行实验。