查询词典 culture-medium

Culture tender leaves in culture medium of MS+2,4-D1.5mg/L+30g/L suger+0.7% agar pH5.8 for 20 days in darkness at 25℃, and then subculture to induced Ⅱ-type calli. Use forceps cutting the tissue to nubble with 2mm2, and put the tissue into Agrodacterium tumefaciens LBA4404 liquid supplemented with AS 100mg/L,then, co-culture 3 days, resume 7 days in MS+2,4-D1.5mg/L+30g/L suger+500mg/L cef, take to MS+2,4-D1.5mg/L+30g/L suger+100mg/L cef+10.0mg/L kanamycin culture 20 days in darkness. After that to make it polarize in MS+30g/L suger+100mg/L cef+10.0mg/L km. The percentage of km resistant callus was reached max after infection for 45 min, the average is 29.66%. Simultaneity, tender leave callus are infected 5 min by A. tumefaciens liquid in different negative pressure, and kept on 15 min in Agrodacterium tumefaciens liquid without negative pressure. Then screen out resistant callus and obtain transgenic plants. When the negative pressure is -0.05MP the percentage of km resistant callus was reached max, the average rate is 37.5%.

将心叶接种于MS+2.4-D1.5mg/L+30g/L 蔗糖，琼脂0.7%，pH5.8 培养基中25℃暗培养20d 后继代一次，诱导产生Ⅱ型胚性愈伤组织，用镊子将其夹碎成2mm2大小的小块，置入添加100mg/L AS 的根癌农杆菌LBA4404 菌液中，侵染时间为45min，共培养3 天后，转入MS+2.4-D1.5mg/L+30g/L 蔗糖+500mg/L Cef 培养基中恢复7天，再转入MS+2.4-D1.5mg/L+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 中，遮光培养20d后，置入其MS+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 分化，卡那霉素抗性愈伤组织获得率在侵染45min 时达到最大值平均为29.66%；同时以甘蔗心叶愈伤组织材料，通过循环水式真空泵，产生负压，设定不同的负压值，在农杆菌菌液中感染5min 后，在负压条件下继续侵染15min 后，筛选出抗性愈伤组织并获得转化植株，其中在负压为-0.05 时转化率达到最大值，其卡那霉素抗性愈伤组织获得率平均为37.5%。

The strain of Spirulina is very important in the culture, so we filtrate the best strain S_2 from three strains S_1、S_2、 S_3 via the experiments of phototrophic batch culture and mixotrophic batch culture, and detected the empoisoning of the used medium. In the end we found no fomite, so it is highly advantageous to culture.

螺旋藻培养过程中藻种的质量非常重要，为此本试验首先从三株藻株S_1、S_2、S_3中通过光合自养和混合营养分批培养筛选出优良藻株S_2，并且对培养液进行污染检查，未发现染菌，大大的减少了工作量。

Three different kinds of culture mediums were utilized to culture acid-producing white rot fungus: potato culture medium, potato and black liquor culture mediums, their strength to do so, generally speaking, tend to decrease gradually.

在以上三种培养基中，白腐菌都具有一定的连续产酸能力，但产酸强度在三种培养基中均呈下降趋势，即产酸能力逐渐减弱。

The fitting culture conditions for isolate BC4 producing more toxin were Improvement Fries and Czapek-Doxbiotion culture medium , culture time for thirty-five days, pH for 6, culture temperature for 25 , still cultivation, and that the juice of tomato and pepper cannot improve herbicidal activity on Amaranthus retroflexus.

试验确定了菌株BC4代谢产物中除草活性物质产生的适宜条件：即改良Fries培养基和查氏-道氏培养基：培养时间是35d；pH值为6；培养温度为25℃；静止培养；培养基中添加一定比例的番茄、辣椒的浸出汁并未提高灰葡萄孢代谢产物的除草活性。

In this work, the effects of culture factors ( MET, IBA, culture medium and culturing in dark) on root formation were studied in tissue culture of Celastrus angulatus. The results showed that the root induction was significantly affected by duration of culture in dark, while other factors were least effective.

探讨了培养因子对诱导苦皮藤试管苗生根的作用，采用正交试验设计法测试了苦皮藤生根关键因素多效唑、吲哚丁酸、暗培养及培养基中盐浓度的效应。

The results indicated the best medium for supension co-culture with Daucus carota and Daucus carota is MS, 2, 4-D 2 mg/L, NAA 1 mg/L and KT 0.2 mg/L, after 25 d the polysaccharide content of co-culture reaches the highest level 0.203 mg/g, and the saponin content of co-culture is 1.85mg/g, higher 3.35% than saponin of Panax ginseng culture.

结果表明，人参与胡萝卜悬浮混合培养的最佳基质为MS、2，4-D2mg/L、NAA1mg/L、KT0.2mg/L，在培养25d时混合培养物的多糖含量达到最高，浓度达到0.203mg/g，混合培养物的皂苷含量为1.85mg/g，比人参悬浮培养物皂苷含量高出3.35%。

METHODS: Rat bilateral olfactory bulbs and olfactory mucosa at 1/3 nasal septum were obtained, sliced, digested in trypsin, and made into monoplast suspension. At 1×109/L, cells were incubated in uncoated 25 cm2 culture flask. At 18-20 hours, cell suspension was moved into another uncoated 25 cm2 culture flask (the first differential adhesion). At 24 hours, cell suspension was moved into a poly-D-lysine-coated 25 cm2 culture flask or poly-D-lysine-coated 6-well culture plate (the second differential adhesion). At 48 hours, parenchyma cells were removed after a half of medium was changed.

完整取大鼠双侧嗅球及剪取鼻中隔后1/3嗅黏膜，剪碎后胰酶消化，制成单细胞悬液，按1×109 L-1密度接种于未包被的25 cm2玻璃培养瓶中，18~20 h后将细胞悬液转移至另一未包被的25 cm 2玻璃培养瓶中（第1次差速贴壁），24 h后再将细胞悬液转移至经多聚右旋赖氨酸包被的25 cm2塑料培养瓶或经多聚右旋赖氨酸包被的6孔培养板中（第2次差速贴壁），接种培养48 h后半量换液以去除杂细胞。

Given dividing campus culture into two kinds of cultures, namely, the academic culture and the nonacademic culture, the author discussed their medium function in affecting college students' quality respectively, coneluded the affecting mechanisms of campus culture and their cooperation characteristic the closed process mechanism and the open adjustment mechanism.

大学校园文化通过发挥内部教育功能，从意义表达和具体操作两个功能层面，直接与大学生素质培养活动相联系，影响大学生的培养和发展。 8、大学校园文化影响大学生素质的培养和发展，以大学办学思想为核心、大学教师文化主体为重要载体、通过学术性与非学术性文化活动两大基本途径，具有它自身的组织与运行原理；形成影响大学生素质的闭合过程机制和开合的调谐机制。

This paper studied the conditions of protoplast preparation of Oenococcus oeni,including the concentration of preculture and lysozyme,lytic time,hypha culture time,etc.As a result,hypha culture time 20 h,penicillinG Na 0.5 μg/mL,lysozyme 1 mg/mL,lytic time 30 min,SMM as osmotic pressure stabilizer,ATB culture medium of regeneration culture mediu...

结果表明，酒酒球菌SD-2a原生质体制备的最佳条件为：菌龄20 h，青霉素G钠质量浓度0.5μg/mL，酶质量浓度1mg/mL，酶解时间30 min，渗透压稳定剂采用SMM缓冲液，再生培养基采用添加0.7 mol/LKCl的ATB培养基，再生培养时采用双层培养基厌氧培养，可以保证较好的形成率和再生率。

By removed ovary culture after positive and negative hybridization, produced interspecific hybridization, and have improved the hybrid seed through removed ovary culture and induced to shoot by culture medium MS, and produced hybrid F1, the plant of Brassica junce×B.pekinesis, the advantage characteristic of hybrid plant is similar to female nature;By cytology authenticating, chromosome number of F1 young flower bud cell (2n=28), it is the sum of monoploid chromosome number of female parent Brassica junce(2n=36) and male parent B.pekinesis(2n=20); The hybridization to Brassica junce×B.pekinesis, and embryonic bud come from removed ovary culture, and it found another form of plant embryo saving.

以芸薹属植物芥菜型油菜和白菜为研究对象，对其进行常规正反杂交后子房的离体培养，通过离体子房培养获得的杂种种子经MS培养基诱导成苗，获得了芥菜型油菜与白菜的杂种F1代植株，表现出杂种优势；通过细胞学的方法，鉴定了杂种F1幼蕾体的细胞染色体数为2n=28，为母本芥菜型油菜（2n=36）和父本白菜（2n=20）的单倍体染色体数之和；芥菜型油菜与白菜常规杂交后，经离体子房培养获得了&胚性芽&，确立了植物胚挽救的另一种形式。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。