查询词典 hormone

Result］ The new buds and petals of I.germanica was proper to be used as explant of tissue culture, with lower browning rate compared with other positions. The well situated tissue block of explant (3 mm×3 mm×3 mm) might reduce browning rate. Adding 0.1%Vc or 0.3% active carbon in medium had obvious effect on preventing tissue browning. The exogenous hormone 2 mg/L 6-BA was easy to lead to brownness turning, and 2 mg/L Kt and 2 mg/L NAA brought less effect to tissue browning. When using disinfectants of alcohol, its dipping time of 5～10 s for explant was the best, with the minimum browning rate. The culture under full illumination condition was liable to induce brownness turning, compared with other cultured conditions, the brownness turning could be restrained effectively by using imitating artificial climate condition for culture.

结果］ 鸢尾的新生芽和花瓣较适宜作组织培养的外植体，与其他部位相比褐变率较低；外植体组织块适中（3 mm×3 mm×3 mm）可降低褐变率；在培养基中加入0.1%Vc或0.3%活性炭对防止组织褐化效果明显；外源激素2 mg/L 6-BA易引发褐变，2 mg/L Kt和2 mg/L NAA对组织褐变影响不大；使用乙醇消毒剂时，对外植体浸泡时间以5～10 s为佳，褐变率最低；全光照条件培养容易诱发褐变，采用仿人工气候条件培养较其他条件培养可有效抑制褐变的发生。

EGF is a 6,000 Da polypeptide hormone produced by glands of the gastrointestinal tract, namely the salivary and Brunner's glands.

6000表皮生长因子是一种生产自多肽激素分泌的胃肠道，即唾液和布鲁尼尔的腺体。

The results indicated that the best induce medium for bud propagation was B5 + 0.1 mg/L NAA + 3 mg/L 6-BA. The numbers of hormone and nutritious and the period cultured were different in different varieties. The garlic shoot-tip with some bud scale is better for culturing. It can increased the survival rate of virus eliminating seedling and propagate rate.

结果表明，最佳诱导培养基为B5+0.1mg/L NAA+3mg/L 6-BA，但是，激素、营养物质的添加数量以及培养时期不同品种间有差异；剥离大蒜茎尖带一定数量的鳞片为好，其不仅可提高脱毒苗成活率，而且有利于扩大茎尖繁殖系数。

The results indicated that the best induce medium for bud propagation was B-5+0.1 mg/L NAA+3 mg/L 6-BA.The numbers of hormone and nutritious and the period cultured were different in different varieties.The garlic shoot-tip with some bud scale is better for culturing.

结果表明，最佳诱导培养基为B5+0.1 mg/L NAA+3 mg/L 6BA，但是，激素、营养物质的添加数量以及培养时期不同品种间有差异；剥离大蒜茎尖带一定数量的鳞片为好，其不仅可提高脱毒苗成活率，而且有利于扩大茎尖繁殖系数。

With primers designed according to sequence(AY052417) of diapause pupae of oriental tobacco budworm registered on GenBank, a double-strand cDNA fragment of DH gene was obtained from RT-PCR amplification and was further cloned into pGEM-T Easy vector.

根据GenBank发表序列(AY052417)设计引物，以烟夜蛾(Helicoverpa assulta Guenée)滞育蛹为材料，利用RT-PCR技术扩增到滞育激素(diapause hormone，DH)cDNA，并通过TA克隆的方法将其克隆至pGEM-T Easy载体上，对目的基因进行测序，并利用设计的酶切位点将目的基因从T载体上切下。

The research aimed to confirm the suitable hormone kinds and level for rooting induction of bulblet in tissue culture seedlings of narcissus.

［目的］确定水仙组培苗小鳞茎生根诱导的适宜激素种类和水平。

Using the tissue cultured bulblet of narcissus cultivar Fortissimo as tested materials, with 1/2MS as the basic medium, 4 conch, of NAA and IBA including 1.0, 0.5, 0.1 and 0.05 mg/L were set up to study the effects of hormone on rooting induction of tissue culture seedlings in narcissus.

方法］以水仙栽培品种Fortissimo的组织培养小鳞茎为试验材料，以1/2MS为基本培养基，设计1.0、0.5、0.1，0.05mg/L 4个NAA、IBA浓度，研究激素对水仙组培苗生根诱导的影响。

The second group of cells in the bursa similar to the organ or tissue by the hormone, mature and differentiate into other cell subsets, known as B lymphocytes.

第二个细胞群在类似法氏囊的器官或组织内受激素作用，成熟并分化为淋巴细胞的另一个亚群，被称为 B 淋巴细胞。

The leaves,pedicel axillary bud,pedicel linternode,stem tip and root tip of butterfly orchid were used as explants,and the best explant and culture medium were screened by testing different culture medium with hormone combination.

以蝴蝶兰的叶片、花梗腋芽、花梗节间、茎尖、根尖为外植体，通过对蝴蝶兰组织培养的不同类型的基本培养基及各种激素配比进行组合试验，筛选出蝴蝶兰组织培养的最适外植体及其培养基配方。

Dr. Caan noted that age-related changes in body composition, metabolic factors and hormone levels, combined with declines in physical activity, are all factors that can contribute to weight gain and obesity as women age.

Caan博士称，身体成分、代谢因素和激素水平的随龄变化，加之身体活动的减少，都是有助于妇女体重增加和肥胖的因素。

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。