囊孢子

The other cells of the tetrad undergo degeneration. The mature embryo sac consists of an egg apparatus, a central cell, and 3 antipodal cells. The embryo sac is a monosporic Polygonum type. The zygote develops into a mature embryo going through proembryo, globular, heart, and torpedo stages.

胚囊发育类型为单孢子蓼型胚囊； 2胚的发育经过原胚、球形胚、心形胚和鱼雷胚等阶段发育为成熟胚；胚柄在球形胚时期最发达，但胚柄短小，只由3个扁平细胞组成，之后逐渐退化。

In the gymnosperms the megaspore gives rise to a cell that is termed the embryo sac because of its similarity to the angiosperm structure.

在裸子植物中，大孢子也产生一个细胞，因为它类似于被子植物的胚囊细胞，故也可以称之为胚囊。

Nucellar cells degenerated in advance under low temperature, which resulted in thickened embryo sac wall surrounding the megasporocyte.

低温处理的蝴蝶兰，胚囊发育过程中珠心细胞提前退化，在大孢子母细胞外围形成较厚的胚囊壁。

The life-cycle of C.baileyi in Beijing duck and in the CAM of chicken embryowas studied with both the light-microscope and the Nomarski interference-contrastmicroscopy.The results indicated that the life-cycle within duck was simillar tothat of CAM.It included excystation, merogony,gamogonyand sporogony.The thin-walled oocyst was first observed and described in China.

借助普通光学显微镜和微分干涉显微镜对C.baileyi在北京鸭体内的生活史和在鸡胚绒毛尿囊膜上的生活史进行了较详细的研究，结果表明：C.baileyi在北京鸭体内和在CAM上的生活史相同，主要包括"脱囊—裂殖生殖—配子生殖—孢子生殖"四个阶段。

Abnormal phenomena in different periods of embryo sac development, including degeneration of megaspore, embryo sac abnormality during the periods of two to eight nucleate etc., were found in the plants with low seed setting rate.

对一些结实率偏低材料的研究，发现在胚囊发育过程的不同时期存在一些异常现象，包括功能大孢子退化，二至八核胚囊发育异常等。

Results One 446 bp PCR product was observed by agarose gel electrophoresis for all three kinds of templates. The PCR sensitivity by Chelex-100 extracted DNA reached for detection of a specimen containing only 1/2 oocyst.

结果3种方法制备的微小隐孢子虫卵囊模板用于PCR检测均获得1条446 bp条带，Chelex-100提取的DNA用于PCR检测的敏感性至少达0.5个卵囊。

The upward mice were inoculated with 2.0×105 oocysts, which were kept at the same time and with the same methods, in 4 ℃, 2.5 % potassium dichromate. 2 days after infection, mice feces were collected and oocyst were isolated and purified used saturated sucrose flotation.

以上各组每只小鼠感染保存时间和方法均相同的微小隐孢子虫卵囊的剂量均为2.0×105个，感染后第3天开始收集鼠粪，收集的鼠粪均用饱和蔗糖漂浮法分离纯化卵囊。

To find out the substitute parameters for pathogenic microorganism warning aiming at potential pathogenic microorganism pollution accidents happened in water environment,the relationships between turbidity ,particle counts and concentration,removal,recovery rate of Giardia cyst and Cryptosporidium oocyst in raw and filtered water are presented.

针对潜在的病原微生物突发性水污染事故，为寻找病原微生物预警替代性指标，重点探讨浑浊度、颗粒计数与原水、过滤水中贾第鞭毛虫孢囊和隐孢子虫卵囊浓度、回收率、去除的关系，认为浑浊度与颗粒计数可以作为水厂处理效果与饮用水受两虫污染的指示指标，并结合水厂的实际情况提出相应的控制方法和建议，指出暴雨时应特别注意两虫的爆发

All chickens were orally challenged with homologous sporulated oocysts at 26 days of age and killed at eight days post challenge. Weight gains, anticoccidial index and oocyst output were determined and compared with those of the control animals.

以可溶性的GST-gam56-2融合蛋白为免疫原，设立高、中、低(1.0 mg、0.5 mg、0.25 mg) 3个剂量，单独或使用弗氏完全佐剂，于5 d、12 d和19 d对雏鸡进行3次免疫， 26 d用5×104个E.maxima孢子化卵囊进行攻虫，8 d后迫杀，对各组的存活率、相对增重率、卵囊减少率、ACI等指标进行统计分析。

The inocula of oocysts were collected from the droppings by purifying with Sheather's sugar flotation method. Two days-old chickens were inoculated by purified inocula of 10,000 oocysts, and vaccinated with one dose of MDV (CVI988 strain) simultaneously.

籍由Sheather's sugar flotation的方法所纯化隐孢子虫的成熟卵囊，经品接种每只10，000卵囊於1日龄之小鸡，并同时皮下接种1剂量的MD疫苗(CV1988株)，於接种后第7天和第12天抽血分离血清，与得自MD病鸡羽毛囊的MD病毒沉降抗原作用，经由琼脂沉？

The objective is to subjugate and discourage the people, because that allows the elite to continue to rule unopposed.

其目的是压制和打击人民的积极性，因为这可以让实权派继续统治不会沦为反对派。

GOD,this is the second time you vanquished me!

天啊，这是第二次你打败了我！