根

The results showed that, using transient GUS expression, the frequency of resistant calli and shoot differentiation as a criteria, wheat mature embryos were cultured on the preculture medium of CM4C1P for 14 days, and immersed in inoculation suspension Ⅰ for 3 hours, then the explants were co-cultured under desiccation conditions for 3 days, which was optimal conditions for Agrobacterium-mediated transformation of wheat mature embryos.

为了进一步完善根癌农杆菌介导的小麦遗传转化体系，以小麦成熟胚为转化受体，研究了根癌农杆菌介导法转化小麦的主要影响因素，结果表明，以gus基因瞬时表达率、抗性愈伤组织获得率和分化率为转化指标，小麦成熟胚在预培养基CM4C1P上预培养14d后，用侵染培养液Ⅰ侵染3h，再经干燥共培养方式处理3d，是根癌农杆菌介导成熟胚转化的合适条件。

During root primordia initiation,large amount of starch depleted,the amount of protein,free amino acids and peroxidase activity increased.

在根原基形成时，淀粉大量消耗，蛋白质和游离氨基酸含量增加，过氧化物酶活性增强；而在根原基形成后根的生长过程中，淀粉含量回升，蛋白质、游离氨基醚含量和过氧化物酶活性下降。

Objective:To investigate the pharmacokinetics of various combinations of pueraria in Gegenqinlian decoction.

目的：测定葛根芩连汤煎剂和葛根单煎剂中葛根素于兔血中的含量，分析配伍对其体内过程的影响。

This paper studies the brew technology of a Pueraria DC health wine produced from Pueraria DC and sticky rice .

以葛根、糯米为原料，探索了葛根保健酒的酿造工艺，采用液体发酵、过滤分离的工艺方法，研制出了酒味爽口、独特，并含有一定黄酮物质的葛根酒。

METHODS:Treatment records of 1100 teeth with acute or chronic pulpitis or chronic apical periodontitis were compared.

选择患急、慢性牙髓炎和慢性根尖周炎 80 0例 110 0个患牙，随机分为两组，对照组 5 14牙采用常规根管治疗术即两次法，实验组 5 86牙采用一次法进行根管充填，观察各组术后近期临床反应。

MTA was an ideal material for management of pulpless permanent teeth with incomplete root formation.

临床观察MTA治疗根尖发育不全并无髓牙和穿孔延迟修补的效果，对前一类病例用MTA制备根尖屏障，在控制感染后，患者仅需来诊1～2次即可完成治疗，7例中有5例根尖暗影完全消失，2例明显缩小，取得了明显的效果。

MTA was used to manage clinical problems. These included pulpless permanent teeth with incomplete root formation and perforation in roots or furcations.

本研究收集了2000—2001年期间在临床上治疗的牙根或根分叉穿孔的病例和根尖未发育完成并牙髓坏死的病例，用MTA修补穿孔和行根尖屏障术，共治疗10例，12颗患牙。

quadrifilar helix antenna ; circular-polarization ; axial ratio

它有四根旋臂和顶部的两根直臂，每根旋臂的旋转角

Vetiveria zizanioide is possesses strong depth roots and have better anchoring force and shear resistance; Vetiveria zizanioides is growed in ringent hinged joined concrete extending system,and its roots are interlaced and make foundation soil compound materals of soil and roots,but grass roots are considered three-dimensional reinforced materal and increase soil strength but also make for the stability of bank protection.

香根草具有纵深发达的根系系统，具有较高的锚固力和抗剪力。通过在开孔的铰链式混凝土块铺面系统中种植香根草，其根系在基土中盘根错节，使基础土体成为土与草根的复合材料，草根可视为三维加筋材料，使土体强度提高；更有利于护岸防冲系统的稳定。关键词：香根草，铰链式混凝土块，防冲护岸系统

6The studies on SSR identification of P. shenzhou show that: The leaf, bud, bast and xylem of type A plant had no components of type C, showing that the above-ground of type A was already pure. Type A plant had two kinds of color roots, the rufous roots belonged to type A tissue, the yellow roots belonged to type C tissue through the SSR identification.

6由深州杨SSR鉴定研究可得：深州杨A型植株的叶、芽、韧皮部、木质部已经检测不到深州杨C型的成分，说明深州杨A型的地上部分已经纯合：深州杨A型植株的地下部分含有红褐色和土黄色两种根，经检测，红褐色根是属于深州杨A型的纯合组织，土黄色根是属于深州杨C型的纯合组织。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。