子叶

The functionof seed specific promoter Napin cloned by our lab was confirmed in Arabidopsis, it can drivegene expression in the seed derived cotyledons and hypocotyl in seedling stage, and in theskins of siliques in the mature stage.

在拟南芥中检验了本实验室克隆的油菜种子特异表达的启动子 Napin，表明 Napin 驱动基因在幼苗的子叶和下胚轴表达，在成熟期驱动基因在角果皮中表达。

In addition, we compared the codon preferences among poplar, Arabidopsis thaliana, Oryza sative, Homo sapi- ens and Escherichia coli, and poplar was found to be most similar to A.thaliana and least similar to E.coli.

将杨树的密码子使用频率与拟南芥、水稻、大肠杆菌和人等不同模式生物种比较后发现，杨树密码子的偏爱性与同为双子叶植物的拟南芥最为相似，与人和大肠杆菌之间的差异较大。

Using cotyledon as explants to induce and differentiate callus, and a lots of resistent callus with green prominence were created, the completely differentiated transgenic alfalfa was not yet obtained.

利用农杆菌介导的叶盘法，选取子叶为外植体，现已获得大量的抗性愈伤组织，并且在愈伤组织上有绿色的突起，尚未得到分化完全的再生植株。

In this paper,plumules,cotyledons,hypocotyls,leaf blades,petioles and stalks of physic nut (Jatropha curcas L.) were used as explants,and callus induction and plant regeneration were studied on MS medium contained different concentrations of 6-BA and NAA.

以小桐子的胚芽、子叶、下胚轴、叶柄、叶片和茎段作为外植体，用不同浓度的6-苄基腺嘌呤(6-BA)和α-萘乙酸对其进行愈伤组织的诱导和植株再生的研究。

TSP decreased in radicles either under low or under high temperature.

胚根POD活性在低温下极显著高于对照，在高温下却显著或极显著低于对照，而子叶中与之相反。

Under different culture conditions CAT activity in the cotyledons and radicles had a tread of decrease with prolongation of culture time, while POD activity had a tread of increase.

不同培养条件下，随着培养时间的延长，子叶和胚根中的过氧化氢酶活性呈下降趋势，而过氧化物酶活性呈上升趋势。

RT-PCR analysis revealed higher expression levels of GmRLCK in soybean cotyledons,roots,flowers and young pods;whereas lower expression levels were detected in radicles,stems and mature leaves at vegetative stage.

RT-PCR的结果表明，GmRLCK在大豆子叶、根、花以及豆荚中都有较高的表达，而在胚根、茎和成熟叶片中的表达相对较弱。

The factors of temperature, light and salinity concen, with 3 levels were set up to make the germination experiment of cowpea seed. The germination rate was calculated and the catalase and peroxidase activity in cotyledons and radicles were investigated.

方法］设置3个水平的温度、光照、盐浓度进行豇豆种子发芽试验，计算发芽率，测定胚根和子叶中的过氧化氢酶和过氧化物酶活性。

To sample the radicles and cotyledons respectively while the radicles was 1 cm long, the total soluble protein, the malondialdehyde content, the activites of superoxide dismutase, the catalase and the peroxide enzyme were determined.

确定供试种子批种子活力正常后，在萌发种于胚根长到1 cm时，分胚根和子叶两个部位取样测定其可溶性蛋白质含量、丙二醛含量及超氧化物歧化酶、过氧化氢酶和过氧化物酶活性等生理指标。

Fruit a drupe-like pome, red, brownish red, or orange to black, with persistent, incurved, fleshy sepals, containing pyrenes; pyrenes (1 or)2–5, bony, 1-seeded; seeds compressed; cotyledons plano-convex.

果一核果象梨果一样，红色，棕红色，或橙到黑色，具宿存，弯曲，肉质的萼片，包含果核；果核(1或者)2-5，多骨，1种子；种子压扁；子叶平凸。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。