查询词典 root tip

Autotetraploids from diploidy leaves of Paulownia elongata on the double layer MS media supplemented with 0.1 mg/L NAA and 15 mg/L BA(optimal organogenetic medium to the leaves of diploidy seedlings) with different colchicines concentrations were induced,chromosome numbering of the plant root tip cells and DNA content analysis of the leaf single cell were used to analyse the autotetra ploids.

在含不同浓度秋水仙素的MS+0.1mg/L NAA+15mg/L BA双层培养基上进行兰考泡桐四倍体植株诱导试验，并通过变异植株根尖细胞染色体观察和叶片单细胞DNA含量测定进行倍性分析。

We identified the chromosomal number of Dracaena cambodiana for the first time and developed the techniques for observing chromosomes in the root-tip somatic cells.

改良石炭酸品红法要点是于上午9时~10时采集根尖，用饱和的对二氯苯预处理6 h，固定4～18 h，置于1 mol/L稀盐酸在60℃恒温水浴解离6 min，置载玻片用改良石炭酸品红染色30 min，敲片后显微观察。

Objective To evaluate the genotoxicity of europium nitrate to the Vicia faba L root-tip cells.

目的 探讨硝酸铕对蚕豆根尖细胞的遗传毒性。

The influences of different pretreatment time (1. 5, 2. 0 and 3. 0 h), different fixation time (18.0, 21.0 and 24.0 h) and different dyeing solutions (acetate-carmine and basic fuchsin dyeing solutions) on the sectioning effect of chromosome from root-tip cells of onion were studied and compared.

研究比较了不同的预处理时间(1.5、2.0、3.0 h)、不同固定时间(18.0、21.0、24.0 h)、不同的染液（醋酸洋红染液、碱性品红染液）对洋葱根尖细胞染色体制片效果的影响。

Caloreas var. fargesii. During seedling stage, the radicle of Ph. rigidula seed burst the putamen at first. After attaching to the trunk of its host plants, the root tip of Ph. rigidula formed a haustorium that contained many mitochondrias, and then invaded the trunk of its host.

硬序重寄生为半寄生性亚灌木；在观察点，主要寄主为桑寄生科的显脉松寄生(Taxillus caloreas var.fargesii)；硬序重寄生主要分布在路边、林缘空地等向阳处，并以小的缀块形式分布。

The study suggest:(1) The observation of satellites in root tip and multiplex PCR makers could accurately identify the homozygous and the heterozygosis of 1BL/1RS translocation.(2) Through the restoring degree we could confirm the success of the transfer. The combination of the restoring degree and the agronomy property could increase the efficiency of practical application.(3) This study proposed the transformation from the physiological male sterile to the genetic male sterile, and then establish a method of utilize the strong superiority crosses.

其中复合引物PCR更适合于回交后代中大量目标种子的筛选；(2)恢复基因转育后代定株与不育系测交，依据测交恢复度可准确确定恢复基因在回交后代的延续，恢复基因定株定向转育与性状选择结合可大大提高转育后代的实际应用效果；(3)本研究提出的粘类小麦雄性不育恢复基因Rfv1定向转育体系，可有效地实现小麦由化控强优势组合向三系强优势组合的定向转化，即生理型不育途径向遗传型不育途径的定向转化，进而建拓一套杂交小麦强优势组合多途径利用新体系。

White nails, found in the accident and loss of blood and shock; chronic diseases are found in anemia, hookworm disease, chronic gastrointestinal bleeding, tuberculosis hemoptysis, pulmonary heart disease and so on; as if a nail white glass, while the characteristics of liver cirrhosis; nail change White, thin, soft, was particularly prevalent in the chronic wasting disease; yellow nail is the lack of vitamin E hypothyroidism, nephrotic syndrome, and other symbolic; gray nails are often suffering from Onychomycosis, a performance for the initial stage next to the itching, Following the nail is deformed, but was dull gray; purple nails with a small red thorn is caused by hypoxia, indicating pulmonary heart disease; nail half red, half white (commonly known as a yin and yang) is not a manifestation of renal function; white nail Flocculation, or white, zinc deficiency may be, anemia or gastrointestinal system is sick; nail spots is the emergence of the performance of the poisoning; redness around the nail, mostly lupus erythematosus and in patients with dermatomyositis; nail root A blue and a half months is a reflection of peripheral circulation; obvious red nails, is the performance of heart failure; a clear and a half months, prompted the digestive system function better absorption; On the other hand, there is no clearance on a narrow or a half months, that is, Tip of the digestive system problems.

指甲变白时，急症见于失血、休克；慢性病则见于贫血、钩虫病、消化道慢性出血、肺结核咯血、肺源性心脏病等；如果指甲白得像毛玻璃一样，则为肝硬化的特征；指甲变白、变薄、变软，多见于慢性消耗疾病；指甲变黄是缺乏维生素E甲状腺功能减退、肾病综合症等象征；指甲变灰往往是患了甲癣，表现为初期甲旁发痒，继则指甲变形，失去光泽而呈灰白色；指甲青紫伴有红色小刺是缺氧引起的，预示肺心病；指甲一半红色、一半白色是肾功能不好的体现；指甲出现白点或絮状白斑，可能是缺锌、贫血或胃肠道系统有病；指甲出现黑斑是中毒的表现；指甲周围出现红斑，多见红斑性狼疮和皮肌炎患者；指甲根部的甲半月呈蓝色是末梢循环不良的反映；指甲明显发红，是心力衰竭的表现；甲半月明显者，提示消化系统吸收功能较好；反之，没有甲关月或甲半月窄小，即提示消化系统有毛病。

In cotyledon, on one hand, very weak GUS staining was observed in PARF8:GUS, but very strong was found in phyA-209 PARF8:GUS. In the shoot apical meristem, hypocotyle and root tip, on the other hand, phyA-209 PARF8:GUS exhibited weaker GUS activity than PARF8:GUS. Interestedly the same expression patterns of ARF8 resulting from disruption of PhyA have been observed in dark, white-light and far-red-light conditions.

结果表明，无论在黑暗、白光和远红光条件下，PhyA突变均明显提高幼苗子叶和叶片中ARF8的表达水平，但明显降低幼苗下胚轴、茎尖和根尖中的表达水平。

Effect of tenuazonic acid on micronucleus and karyokinesis of Vicia faba root tip cells was investigated to evaluate its cytogenetic toxicity.

利用蚕豆根尖为材料，研究了链格孢菌毒素细交链孢菌酮酸对细胞微核和有丝分裂的影响，以评价其细胞遗传毒性。

More mucilage was produced by corn root tip under Al stress, which could be stained by 0.01% neutral red.

铝胁迫下玉米根尖可分泌较多的粘胶，可以被中性红染成红色。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。