母核

F1 hybrid has the morphological feature which is between the male and female parents and shoed strong heterosis, exuberant vitality, late ripe period and low rate of self-fertility. The average chromosome configuration of F1 in PMC MI was 18.58Ⅰ+18.59Ⅱ+0.085Ⅲ+0.028Ⅳ. At anphase Ⅰ in PMC, some laggard chromosomes arranged in equatorial plate. Micronucleus and a lot of abnormal cells can be observed at dyad, tetrad and microspore.

杂种F1形态特征介于双亲之间，具有较强的杂种优势，生长旺盛，熟期晚，自交结实率较低。F1花粉母细胞减数分裂中期Ⅰ平均染色体构型为18.58Ⅰ+18.59Ⅱ+0.085Ⅲ+0.028Ⅳ，PMC后期Ⅰ观察到部分落后染色体排列在赤道板上；二分体、四分体和小孢子时期，细胞内普遍观察到微核，且出现大量异形细胞。

Except the incomplete maturation of spermatid nuclear and oocyte activation, idendification of a live spermatid is a pivotal procedure. It is difficult to distinguish round spermatids from other round cells such as spermatocytes, monocytes, polymorphonuclear leukocytes and so on.

除精子细胞的核蛋白不完全成熟及卵子激活不足等因素外，如何正确选择存活精子细胞是个难题，如圆形精子细胞与精母细胞、单核细胞和多形核白细胞等其他圆形细胞的区分就比较困难。

Simultaneous studies were conducted on bone marrow micronucleus and spermatocyte chromosome aberration in mice, yielding negative results and no evidence of mutagenic effects.

同时报道了小鼠骨髓微核和睾丸精母细胞染色体畸变试验研究的结果，即两项试验均为阴性，无致突变效应。

Immunohistochemistry for Bax: Bax expression was detected in germ cell cytoplasm cytoplasm and nucleus of seminiferous tubule theca cell, obviously spermatocyte.

免疫组化观察Bax的表达情况：Bax表达见于生精细胞的胞质和胞核，以精母细胞为主。

Immunohistochemistry for HIF-1α: HIF-1αexpression was detected in germ cell cytoplasm cytoplasm, obviously spermatocyte,and was detected in nucleus of seminiferous tubule theca cell too.

免疫组化观察HIF-1α的表达情况： HIF-1α表达主要见于生精细胞的细胞质，以精母细胞明显，也见于曲细精管外周膜细胞的胞核。

In the present paper, the induction characteristic of lymphoblastoid, in-terferon in vitro is described. Results indicate that Namalwa cell line possesses a higher interferon-inducing ability than Raji and Yu-Nu cell lines. NDV B1 strain, F strain and Sendai virus can induce more interferon than BB1 virus and poly 1 : C. Priming of pretreating cells with homologous interferon or superinduction did not effect interferon production. The optimal cell concentration for interferon induction is about 106 cells/ml...

本文研究了类淋巴母细胞干扰素的诱导特性：Namalwa细胞系的干扰素诱生能力大于Raji和余奴系，而诱生剂中以NDV和仙台病毒诱生干扰素的能力较大，但"起动"和超诱导均无作用；诱生干扰素适宜的细胞浓度为10~6/毫升；增殖期的Namalwa细胞诱生能力较大；黄芪和5'-溴脱氧尿嘧啶核苷对Namalwa细胞干扰素的诱生系统有明显刺激作用，在最适条件下粗制干扰素平均滴度可达40，000单位/毫升。

In the present paper, the induction characteristic of lymphoblastoid, in-terferon in vitro is described. Results indicate that Namalwa cell line possesses a higher interferon-inducing ability than Raji and Yu-Nu cell lines. NDV B1 strain, F strain and Sendai virus can induce more interferon than BB1 virus and poly 1 : C. Priming of pretreating cells with homologous interferon or superinduction did not effect interferon production. The optimal cell concentration for interferon induction is about 106 ce...

本文研究了类淋巴母细胞干扰素的诱导特性：Namalwa细胞系的干扰素诱生能力大于Raji和余奴系，而诱生剂中以NDV和仙台病毒诱生干扰素的能力较大，但"起动"和超诱导均无作用；诱生干扰素适宜的细胞浓度为10~6/毫升；增殖期的Namalwa细胞诱生能力较大；黄芪和5'-溴脱氧尿嘧啶核苷对Namalwa细胞干扰素的诱生系统有明显刺激作用，在最适条件下粗制干扰素平均滴度可达40，000单位/毫升。

The result showed that the plant of Maicao No. 9 was tall, with good fecundity, fully filled grain and vigorous growth. The chromosome number of the root cells was 2n=56, through the observation of pollen mother cells meiosis, there were a certain amount of univalents, ring bivalents and bar bivalents in PMCM. Different numbers of lagging chromosomes, chromosome bridges and micronucleus were found in anaphaseⅠ, anaphaseⅡ and tetraspore.

结果表明：麦草9号植株高大，结实性较好，籽粒饱满，生长旺盛；根尖细胞染色体数目为2n=56，对其进行花粉母细胞减数分裂观察，中期Ⅰ具有一定数量的单价体、环状二价体、棒状二价体；后期Ⅰ、后期Ⅱ与四分体时期都出现不同数量的落后染色体、染色体桥、微核等现象。

GA(subscript 1+4) distribution in microspore mother cells, uninucleate and binucleate pollen, especially in nucleus, gradually increased with the anther development. Moreover, some GA(subscript 1+4) distributed in sperms.

短日照条件下花药可育，花粉母细胞、单核花粉和二核花粉内GA(下标 1+4)的分布数量逐浙增多，以细胞核最为明显；成熟花粉的精细胞内也有一定数量的GA(下标 1+4)分布。

Genetic diversity in 12 populations of apomictic Eulaliopsis binata was evaluated by morphological observation and RAPD analyse ,as a result, 12 populations of E.binata were divided into different types.

通过分析龙须草核型和观察花粉母细胞减数分裂过程中染色体行为与变异，判断其倍性水平和多倍体类型。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。