子叶

模拟酸雨对棉花子叶叶绿素a、b含量及其比值的影响

Effects of simulated acid rain on content of chlorophyl a , B and their ratio in cotton cotyledon

富含多糖和次生物质的芒果子叶总RNA的提取

RNA Extraction from Cotyledon of Mango with High Levels of Secondary Substances and Carbohydrates

于是，我们就能够看到两片厚厚的子叶以及中间一个小小的幼苗，这种结构与豆子非常相似。

and we shall see that it consists of two thick seed-leaves , very much like those of the bean , having a tiny plant between them .

目的：以怀牛膝的子叶为外植体，以愈伤指数与齐墩果酸含量优选最佳MS培养基。

Objective : To select the best MS medium .

莴苣子叶培养中RNA，蛋白质及过氧化物酶的变化

Changes of RNA , Protein and Peroxidase in Culture of Lettuce Cotyledons

发育到子叶期的体细胞胚在不加任何激素的MS培养基上就可以萌发，再生成完整植株。

Somatic embryos germinated on MS basal medium free of plant growth regulators developed into plantlet .

在成熟期，子叶细胞中的淀粉体DNA含量比生长中期增长了9.6倍。

Amyloplasts DNA content in cotyledon cell of mature period is 9.6 times than that in the middle period of growth .

子叶细胞的ATP酶活性主要定位在质膜。

ATP ase activity was mainly deposited in the plasma membrane .

SOD同工酶谱：幼苗期>子叶期>开花期>座果期；

SOD isozyme-grams : seedling stage > cotyledon stage > flowering stage > fruiting stage ;

电泳分析结果表明，子叶衰老期间细胞核主带DNA明显降低；

The results showed that the contents of both DNA and RNA decreased during the senescence of mungbean cotyledons ( Fig.1 ) .

加速老化还引起种子子叶与胚轴内ABA含量明显增加。

ABA contents of cotyledon and axis were increased dramatically .

绿豆子叶脱分化过程中RNA聚合酶的制备、特性及其活性的研究

Studies of RNA polymerases isolation , purification , properties and activity in cotyledon segment of Phaseolus radiatus during Dedifferentiation

并分别提取柱花草无菌苗的根、花、子叶、叶片中的RNA，分别扩增目的基因，结果根、花中无目的基因表达，其余组织有该基因表达。

The result showed no gene expression dig up the roots and flowers , but the other organizations have the gene expression .

极性和NAA浓度对发根农杆菌遗传转化黄瓜子叶的影响

Effects of polarity and NAA concentration on Transformation of cucumber cotyledons by Agrobacterium rhizogenes

根癌农杆菌介导转化甘蓝型油菜子叶GUS基因瞬间表达

Transient expression of GUS gene in cotyledons of rapeseed mediated by Agrobacterium tumefaciens

几种抑制剂对钾和IAA诱导的离体黄瓜子叶不定根形成的影响

Effects of some inhibitors on potassium - and IAA-INDUCED adventitious root formation of Excised Cucumber Cotyledon

MeJA、ABA与BA对黄瓜离体子叶叶绿素合成的影响

Effects of MeJA , ABA and BA on Chlorophyll Synthesis in Excised Cotyledons of Cucumis sativus

BA对大豆子叶培养物器官分化的影响及其与子叶离体时苗龄的关系

Relationship between the Effect of BA on the Organ Differentiation of the Cultured Soybean Cotyledons and the Seedling Ages of the Detached Cotyledons

将胀果甘草的根、胚轴、子叶分别接种到含有不同激素组合的MS培养基上，在光照或黑暗下培养.将根接种到液体培养基中培养。

Root , hypocotyl and cotyledon of Glycyrrhiza inflata were cultured on MS medium containing different hormones in light or dark , and root was cultured in liquid medium .

结果表明，随着胚的生长发育，内源ABA含量呈上升趋势，到子叶胚时，达到最高值。

The results show that endogenous ABA level increases during the development of somatic embryo and reaches the highest at cotyledonary stage .

825mW/cm~2的CO2激光照射茄子干种于10秒，13秒，15秒，可以增强幼苗素质，激光组的子叶、真叶的干重，叶面积，叶绿素含量及根系的相对还原力均高于对照。

The quality of seedlings may be enhanced when dry seeds of eggplant were irradiated with 825mW / cm2 of CO2 laser at a time of 10s ; 13s ; 15s .

在含2,4-D的MS培养基上，体细胞胚可发育到子叶期。

On MS medium supplemented with 2 , 4-D , embryogenic callus produced somatic embryos , and some somatic embryos developed to cotyledonary stage .

结果表明：盐胁迫条件下，2个品种POD，SOD活性在胚根部位均有所增强，子叶部位则有不同程度的降低；

The results showed that both POD and SOD activities in roots of two cultivars raised under salt stress , and declined in cotyledons of two cultivars ;

本文介绍了棉花DNA的一种简便提取方法，并对棉苗不同部位的提取效果进行了比较，发现棉花子叶的提取效果较好。

The paper has introduced a simple method for cotton DNA extraction , and compared the extraction effects of cotton seedling different parts . It is found out that the extraction effect of cotyledon is best .

看护培养和子叶部位对儿菜（BrassicajunceaCoss.var.gemmiferaLeeetLin）再生芽发生的影响

Effects of Nursing Culture and Section of Cotyledon on Shoot Regeneration of Brassica juncea Coss . var. gemmifera Lee et Lin in vitro Culture

以离体油菜子叶为材料，研究了营养胁迫诱导的子叶衰老过程中吲哚乙酸氧化酶（IAA氧化酶）和细胞分裂素氧化酶活性的变化。

The activities of IAA oxidase and cytokinin oxidase were studied during the senescence induced by inorganic nutrition deprivation using detached rape cotyledons .

胚芽、胚轴和胚根中的CTK和ABA含量明显高于子叶。

The contents of CTK and ABA were higher in plumule , plumular axis and radicle than in cotyledon .

当种子萌发48h以后，其子叶开始出现棉酚，但含量极低；

After 48 hours of germination , the cotyledons started to appear gossypol , although the gossypol contents were very low .

以甘蓝型冬油菜下胚轴和子叶为外植体，研究4℃低温处理幼苗、分化培养基添加MES以及预培养等对遗传转化中外植体褐化的影响。

Treatment of the seedlings in the 4 ℃ refrigerator , MES and preconditioning conditions were investigated for explants browning of winter type Brassica napus .

在子叶、叶柄、胚轴以及胚根四者当中，下胚轴对2,4-D的反应状况最好。

Among cotyledon , petiole of cotyledon , hypocotyl , and radicle , hypocotyl has the most responsive explants to2,4 - D.