0 . 1 - 5 . 0 mmol / l al can induce dna ladders in the root - tips ( treated for 8 h ) and suspension cells ( treated for 24 h ) of barley , but no apoptotic bodies were observed 0 . 1 - 5 . 0mmol / l铝处理大麦根尖8h或悬浮细胞24h均产生了梯状dna ，但未观察到凋亡小体的形成。
These results suggest that sces are very sensitive to al toxicity hi the root tips of barley and can be also served as a sensitive indicator in al phytotoxicity 这些结果表明，大麦根尖sce对铝毒反应极为敏感，可作为植物铝毒研究的敏感指标。用于鉴定大麦耐铝性。
Conclusion : calcium hydroxide iodoform paste used in root canal disinfection can decrease times of the block therapy on chronic periapical abscess with sinuses 结论：用氢氧化钙碘仿糊剂根管内封药消毒能够减少有窦型慢性根尖周脓肿根管封药消毒的次数，有利于窦道的尽快愈合。
There was a statistically significant and weak positive correlation between rers and rulrs ( r = 0 . 63295 ) , indicating that it is possible to estimate barley al - resistant ability using ul 建立的大麦根尖超微弱发光技术用于鉴定大麦耐铝性是完全可行的。首次研究了铝毒诱导植物sce的效应。
Methods altogether 97 water samples in dry season and 101 samples in rainy season were collected , and the mutagenicity was detected by the vicia faba root - tip micronucleus test and comet assay test 方法：采用蚕豆根尖微核试验和慧星实验方法，检测泰兴市枯水期97份和丰水期101份水样的致突变性。
Activities of citrate synthase ( cs ) increased while those of aconitase ( aco ) decreased during the al stress . this might be the reason for the al - induced increase in citrate efflux 结果显示，介质中50 mol lal能显著提高根尖柠檬酸合酶( citratesynthase ， cs )的活性，同时伴随着柠檬酸含量的升高。
The root point thereforecan grow , is by the root point growing point ( meristematic tissue ) thecell can unceasingly split produces the new cell , as well as the newcell unceasingly elongates result 根尖之所以能够生长，是由根尖生长点（分生组织）的细胞能够不断地分裂产生新细胞，以及新细胞不断伸长的结果。
With increasing concentrations of pahs the biomass of various parts of k . candel seedling and the total biomass tended to decrease , the extent of inhibition by nap was obviously greater than by pyr . 3 在0 10mg l浓度范围，秋茄幼苗叶片、根尖sod与pod总活性的变化趋势相似，受pahs胁迫， sod和pod总活性提高。
Seem now , four sharp sharp high tower these , like post to form a cluster , stand in cathedral all sides , like the flagpole , is like the sacred bodyguard again , has added the beautiful air in the whole building 现在看来，这四根尖尖的高塔，象柱子一般簇立在大教堂的四方，象是旗杆，又象是神圣的卫士，增添了整个建筑的秀丽之气。
Using radioactively labeled elements he demonstrated that the region of maximum absorption of water is a few centimeters behind the root tip and that quantities of minerals are absorbed passively in the transpiration stream 利用放射性标记元素证明了水分吸收的主要部位在根尖以上几厘米，矿物质随蒸腾作用被动的吸收入植物体内。
