多核体

Discussions are given of the fate of Ms2 during translocation in the hexoploid triticale, the exchange of the names for 4A and 4B chromosomes in common wheat and the possible expoitation of the new locus Ms2 (4BS), and the following speculations are made: In geneic genes of allopolyploid organisms the donor chromosomes tend to be intergenomically translocated to their phylogically and evolutionarily close chromosomes with the same order number and the same arm; it is cofirmed that the 7th International Conference of Wheat Genetics was right to exchange the names between chromosomes 4A and 4B of common wheat in 1988; and as a new genetic marker and a breeding tool for all the chromosome B-carrying species in the tribe of Tritceae, Ms2 (4BS) may have wide application in building and expanding the gene pool of germplasm resources of various species of wheat.

对 Ms2基因在六倍体小黑麦与原太谷核不育小麦远缘杂交中易位时的走向，普通小麦4A与4B染色体的互换更名以及 Ms2(4BS)新位点的开发利用进行了讨论：认为异源多倍体生物核基因的组间易位倾向于从供体染色体向进化亲缘关系较密切，且染色体序数与染色体臂相同的部分同源染色体易位；1988年第7届国际小麦遗传学会对普通小麦4A与4B染色体的互换更名是正确的； Ms2(4BS)作为一个新型的遗传标记，作为小麦族内所有携带B染色体组的物种的育种工具和在拓建各类小麦种质资源的基因库等方面均有广泛的用途。

Results The pathological changes in the nuclei mentioned above included the crimple and ruture of nucleus membrane,mitochondria degeneration and other degenerative structure such as plenty of primary lysosomes,agglomeration of lipochrome,Golgi complex degeneration and so on.

结果上述核团神经元的超微结构均发生病理性改变，神经细胞核膜皱缩，核膜凹凸不整，并有局部断裂；线粒体变性，基质浓度降低及空泡化；粗面内质网和高尔基复合体囊腔扩张变性；大量初级溶酶体及脂褐素集聚；出现了髓样体和多泡体等变性结构。

After prolonged exposure to ANE, the accumulation of hyperploid cells, micronucleated or multinucleated cells were noted concomitantly with centrosome amplification.

另外，长时间的作用下多倍体，多核或微核细胞之有明显的增多，同时也发现常之中心体。

The present invention discloses beet noctuid nuclear polyhedrosis virus insect killing suspending agent, in which the virus bearer content is 5-20 hundred million PIB/ml., itis composed of chlorbenzuron analogue chlorfluazuron, aromatic amino acid tyrosine, fluorescent whitener, dispersant, glycerin, sterilized water.

本发明公开了一种甜菜夜蛾核多角体病毒杀虫悬浮剂。该剂型的主要成分是甜菜夜蛾核多角体病毒，悬浮剂中病毒包涵体含量5－20亿PIB/ml，它由灭幼脲类似物氟啶脲、芳香族氨基酸酪氨酸、精制荧光增白剂、分散剂、甘油、无菌水组成。

ABSTRACT Heliothis armigera nuclear polyhedrosis virus , due to its special pestiferous effect on Heliothis armigera and being innocent to human, livestock and environment, has been a commercial bioinsecticide widely in the world for years.

棉铃虫核型多角体病毒是我国最早注册的杆状病毒杀虫剂，到1999年，约有100，000公顷棉田用棉铃虫核型多角体病毒的生物制剂防治害虫。

The result of homological analysis showed that an open reading frame,which contains 289 amino acids,is more similar to the Choristioneure fu- m...

比较多种核型多角体病毒的多角体膜蛋白和多角体蛋白的氨基酸序列发现，这两种多角体结构蛋白的同源性具有相似的变化趋势。

A pair of primers producing 614bp amplification fragment were designed based on the sequence of the C\|polyhedrin gene of Bombyx mori CPV,and the expected amplification products were obatined when genomic dsRNAs isolated from purified BmCPV,DsCPV and Lymantria dispar CPV were used as templates.Genomic dsRNAs isolated from Heliothis armigera CPV and DNAs from Lymantria dispar nuclear polyhedrosis virus and DNAs from midgut tissue of healthy Dendrolimus spectabilis larva did not yield any amplification products.The detection limit of purified DsCPV genomic dsRNAs was 1.0pg.

依据家蚕质型多角体病毒质型多角体蛋白的核苷酸序列设计一对引物，从纯化的DsCPV\，BmCPV和舞毒蛾质型多角体病毒的基因组dsRNA可成功地扩增出长614bp的目的片段，从提取的健康松毛虫幼虫肠组织的DNA、舞毒蛾核型多角体病毒基因组核酸、以及棉铃虫质型多角体病毒基因组核酸，未能扩增出目的片段。

A lot of organelles such as mitochondria, rough endoplasmic reticula and Golgi bodies were observed in fiber cell. Then, double karyotheca disappeared, and the organelles disintegrated. Multivesicular bodies appeared in fiber cytoplasm. With the further development of fiber, fiber wall underwent continual thickening with aging, and polylaminate structure gradually appeared. While the agglutinated nucleus, transfer vesicles, plasma membrane and plasmodesmata still presented.

研究发现，次生壁形成早期，细胞核具有双层核膜，染色质凝聚，可见大量的线粒体、粗面内质网和高尔基体等细胞器存在于纤维细胞中；随后，双层核膜消失，细胞器将逐渐解体，多泡体开始出现在纤维细胞的细胞质；随着年龄的增加，纤维细胞壁逐渐增厚，并出现多层结构现象，而运输小泡、细胞膜、胞间连丝和凝聚的染色质将持续存在。

The reproduciing viruses in the other sensitive cells were with envelopes, and packed in polyhedrons.

在其他敏感组织内增殖的核衣壳大部分被囊膜包围形成病毒粒子，且随机包涵在多角体中形成核多角体。

The homogeneous nucleation discussion shows that PMSi possesses the excellent homogeneous nucleation performance. Many crystal nucleuses are formatted when PMSi is added into wastewater. It makes lots of floccules sedimentation to format and granule floccules to grow rapidly, which makes the floccules close-grained, big-bodies and fast-sedimentation-rate.

均相成核讨论表明，多核复合无机高分子絮凝剂PMSi具有更强的均相成核能力，大量晶核的形成诱导了絮凝体沉淀的形成，使得絮体颗粒迅速成长，其结果必然是絮体颗粒密实、体积大且沉降速度快。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷