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- 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。
- Among them, Bidens pilosa var. radiate and Egeria densa were found to be the dominant species with broadest habitat ranges in terrestrial and aquatic environments, respectively. 其中，大花咸丰草是兰阳平原入侵范围最广泛的陆生物种，水蕴草则是流动水体系统中最具威胁者，两者在台湾的驻在时间短，但入侵能力极强。
- Key words: chlorophyll fluorescence, polyphasic fluorescence rise, Egeria densa, photosystem II, 关键词叶绿素萤光,多阶层萤光上升,水蕴草,第二光系统,光合作用
- Egeria densa 阿根廷蜈蚣草
- 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。
- The mechanism in control of renin synthesis is independent of the macula densa, but the latter is critical in control of renin secretion. 肾素合成的调节可独立于致密斑，但后者对肾素分泌起重要调节作用。
- 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
- Glycogen densa in the cells of the uterine gland appeared at the base or at the area above the nucleus, this features indicated that these cells stayed in early secretory stage. 子宫腺细胞基底及核上区有糖原斑，为动情晚期形态。
- Hay una densa niebla. 有大雾。
- Elsholtzia densa Benth. 浅琥珀色有香味。
- But SMC arranged in order,macula densa and myofilament were richer,organelles were scare(contrac tlie phenotype),without generation of cholesterol crystal were observed in Xiaoy u tablets group. 而消瘀片组SMC排列较整齐，胞浆内有较多的致密斑和肌丝，细胞器较少，呈收缩型表型，未见有胆固醇结晶形成。
- 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
