细胞分裂

To evaluate the effect of PRRSV on humoral and cellular immune responses,threeweek old SPF piglets and conventional piglets with antibody to PRRSV were inoculated nasally with PRRSV BJ 4 strain,and immunized intramuscularly with hog cholera vaccine 48 hours postinoculation.

对 2 0日龄 SPF猪和 2 0日龄猪繁殖与呼吸综合征血清阳性猪，人工感染猪繁殖与呼吸综合征病毒北京分离株( BJ-4 )后 4 8h接种猪瘟疫苗，利用 ELISA方法检测仔猪针对 PRRSV和猪瘟疫苗的体液免疫，利用 MTS法检测仔猪外周血单核细胞对有丝分裂原 Con A的刺激反应。

The karyotype of Nelumbo nucifera during meiosis zygotene was established in this study,which would help the studies of meiosis and molecular cytogenetics in lotus.

本研究建立了中国莲偶线期染色体的核型，为研究莲的减数分裂过程及分子细胞遗传学研究提供基础。

The investigation of the function of FtsZ protein in Nicotiana tabacum will found a good foundation for us to know the molecular mechanism of chloroplasts division and the origin and evolution of eukaryotic cells.

将会为进一步认识叶绿体分裂的分子机制以及真核细胞的起源和进化等问题打下坚实的基础。

Single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants.

单细胞或无细胞的球状或螺旋状或棒状的缺乏叶绿素的有机体；通过分裂繁殖；和病原体一样对生物化学很重要；很难分类；通常被认为是植物。

First, proteins are extracted from tissues by disruption of cellular structures and remoal of nonprotein components.

首先，通过分裂细胞结构从组织中提取蛋白，去除非蛋白成分。

After zygote dividing,the degeneration of nucellusgains the upper hand,and almost all nucellus cell disappear in 4-5 days after flowingexcept for the most outside nucellus.

合子分裂以后则以退化为主，到开花后4-5天，珠心组织除了表皮细胞外，其他几乎都解体了。

In thistreatment,some embrocyte,which may originate from the nucellus cell,can be foundin few of ovaries in APⅣ.The embryos in most of ovaries in APⅣ and IR36develop normally,but the endosperm,in which many crystal-like substances wereobserved,by spike-spray with 2,4-D 3-hours after pollination.

少数APⅣ子房的"腔"内出现多个"胚状体"，推测可能来自珠心细胞的分裂；在受精后处理的大部分子房胚胎发育正常，但胚乳发育却不正常，胚乳内观察到许多的结晶体。

In this paper, we use this numerical method and adopt operator splitting method to simulate the conduction model of action potential in two-dimensional cardiac ventricle tissue,the conduction model of the action potential in two-dimensional cardiac ventricle tissue is denoted by one reaction-diffusion equation with a series of ODE describing ionic channels of cell, at the same time,we adopt the compact alternate direct implicit difference method to simulate that model,compar-ing these value results,get some conlusions.

本文中，我们利用摄动有限差分方法和算子分裂思想去模拟二维心室肌中动作电位的传导模型，该模型由一个描述细胞离子通道的常微分方程组和一个反应扩散方程组成。

Processes originated One-celled life reproduces by splitting, but sexual reproduction is much

一个单细胞的生命藉分裂而产生新细胞，那么有性生殖会是更复杂的问题了。

The cooperation of these protein kinases is essential to the development and fertilization of the oocyte.

脊椎动物卵母细胞的减数分裂和受精过程受到多种蛋白激酶的调节。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。