细胞质

There was lots of organelle, such as rib somes, mitochondria in companion cell during the mature stage of SE. Also the plasmodesmata appeared in cell wall between SE and CC.

在筛管成熟期间，伴胞的细胞质较浓，内含辜富的核糖核蛋白体、线粒体等细胞器，与筛管相连的细胞壁上具有胞间连丝。

The ultrastructural changes during the development of sieve element companion cell complex (SE/CC complex) in Populus deltoides were investigated using electronic microscopy. The result showed that SE and CC tome from the same secondary phloem mother cell. The development of sieve element went through three stages, i. e. immature, mature, and degenerate stage. In immature stages the sieve element presented radial expansion, cell wall thickening, and production of sieve plastid and P-protein. The cytoplasma selectivly autolysed in mature stage. At the same time, karyoplasm was dispersed, and nuclear envelope was not clear, or karyoplasm was disorgnized, and nuclear envelope was clear. The karyopalsm finally turned into P-protein. In degenerate stage, the cytoplasm completely disappeared, and the function was lost.

利用电镜技术研究美洲黑杨次生韧皮部筛管和伴胞发育过程中细胞超微结构的动态变化，观察到筛管和伴胞由同一个次生韧皮部衍生细胞分裂分化形成筛管约发育历经未成熟期、成熟期和衰退期的变化未成熟期筛管分子表现为细胞的径向扩展、壁的增厚、筛管质体和P-蛋白质的产生；成熟期筛管分子细胞组分发生选择性自溶，细胞核核质弥散状，核膜不清晰，或核膜清晰而核物质降解，最后细胞核完全解体转化为P-蛋白质类的物质；衰退期筛管分子细胞质完全解体消失，失去功能。

During the PCD, condensation of nucleus, marginalization of chromatin, nuclear membrane shrinkage and destruction apparently occurred, and many vesicles appeared in the cytoplasm, which may be related to the degradation of cell substances.

正在凋亡的细胞核染色质固缩、趋边、核膜破裂或皱缩、细胞质囊泡化并将降解的物质运到周围细胞，从而保证了其它细胞正常发育以及生长的细胞对物质和能量的需求。

The histological structure shows the lobule testis in Leptobotia elongate Bleeker, and the spermatogenesis is divided into 6 phases based on the size, nucleolus number, the degree of nucleus and cytoplasm condensation.

组织学结构显示长薄鳅的精巢属于小叶型，根据发育过程中细胞的大小、核仁多少、细胞核和细胞质浓缩的程度将精子发生划分为6个时相。

Main ultrastructrual changes included cytoplasm degeneration, want of pinocytotic vesicle and phagosone, decreased organelles and granules, mitochondria swelling, nucleus condensation, etc.

主要包括：中性粒细胞质变性，吞噬泡欠缺，细胞器及细胞颗粒减少，线粒体肿胀，细胞核浓缩等。

Tibetanum were more abundant, which can be used to broaden the genetic basis of common wheat. Cluster analysis exhibited that wild emmer had a closer consanguine relationship to hexaploid wheat, as compared to Aegilops tauschi. In addition, it was found that there was a closer genetic relationship in chloroplast genome of common wheat and T. petropavlavskyi, which indicated that T. petropavlavskyi probably derived from the backcross between common wheat and Polish wheat.

结果］与普通小麦相比，斯卑尔脱小麦和西藏半野生小麦等群体内的叶绿体遗传变异更丰富，可以作为普通小麦新的细胞质遗传变异来源；与粗山羊草相比，野生二粒小麦与六倍体小麦间存在更近的亲缘关系，这与前人关于二粒小麦是六倍体细胞质供体的研究结果相印证；研究还发现，新疆稻麦与普通小麦在叶绿体基因组上具有很近的亲缘关系，为新疆稻麦是由波兰小麦与普通小麦杂交再由普通小麦回交后产生的假说提供了分子水平上的证据。

A SSR marker based linkage map covering chromosome 10 and the short arms of chromosomes 1 and 11 of rice was constructed and applied for mapping fertility-restoring genes in Zhenshan 97A/(Zhenshan 97B/Milyang 46)F_ 6 population consisting of 704 lines.

应用由704个株系组成的珍汕97A/(珍汕97B/密阳46)F6测交群体，针对水稻第10染色体和第1、11染色体短臂构建了微卫星标记连锁图谱，检测到控制野败型细胞质雄性不育育性恢复的4个QTL，其中位于第10染色体长臂中下部的Rf4具有主效效应，位于第1染色体短臂的Rf3具有较大效应，位于第10染色体长臂近着丝粒处的qRf10和第11染色体短臂近着丝粒处的qRf11表现出微效作用。

Napus and R. sativus and that the crossability was governed by the interaction of nucleus a...

通过胚珠培养，获得了甘蓝型油菜萝卜细胞质雄性不育系与萝卜的属间杂种。

Sativus. The results demonstrated that the Ogura sterile cytoplasm had positive effect on interspecific crossability between B.

结果表明，Ogura不育细胞质对甘蓝型油菜与萝卜种间可交配性有正效应，可交配性受核-质互作控制。

In order to understand the effect of Ogura sterile cytoplasm on interspecific crossability between Brassica napus and Raphanus sativus, three radish cytoplasmic male sterilie lines of B. napus and their corresponding maintenance lines were used as female parents to hybridize with R.

用三个甘蓝型油菜萝卜细胞质雄性不育系及其相应的保持系作母本与萝卜杂交，以了解Ogura不育胞质对甘蓝型油菜与萝卜种间可交配性的影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。