查询词典 plastid

Above results suggest that the nuclear genes controlling amyloplast development may express in the uninuclear microspore and continue to be active in the VC, while the genes controlling plastid dedifferentiation may be promoted in the GC after the first mitotic division.

以上结果表明可能控制造粉质体的核基因在单核小孢子中表达并继续在营养细胞中起作用，而控制质体脱分化的基因在第一次有丝分裂后才在生殖细胞中被启动。

The treatment of CaCl〓 made the electron dense bigger in plastid during the early period of fruit development, while in the period of fruit rapid growth and fruit ripening stage, the amounts of amyloplast increased. On the other hands, the treatment of EGTA and LaCl〓 decreased the amounts of plastid or amyloplast, made the structure of plastid abnormal.

CaCl〓处理使前期果实细胞中质体上电子密度大，中后期则使造粉体数量增加，EGTA和LaCl〓处理减少了质体数量，使质体结构异常。

Can undertake nutrition of light energy inorganic is divided inside the cell of general alga contain and the light with advanced same plant adds up to green outside pigment, some kinds group still have in all special pigment and also do not show green more, so their plastid calls chromatophore especially or hold lubricious put oneself in another's position.

能进行光能无机营养一般藻类的细胞内除含有和绿色高等植物相同的光合色素外，有些类群还具有共非凡的色素而且也多不呈绿色，所以它们的质体特称为色素体或载色体。藻类的营养方式也是多种多样的。例如有些低等的单细胞藻类，在一定的条件下也能进行有机光能营养。

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。

Gracilis were applied to investigate the effect of proplastid on adaptability, in which such structure was found to be important to the competitiveness during heterotrophic growth in the dark; 2 a new procedure for differential display technology was developed and used to study the influence of plastid on nuclear gene expression, with which it was shown that the loss of plastid could cause remarkable changes in expression of certain nuclear genes.

本文主要有两点突出之处：1）应用裸藻褪色突变株与野生型的生长竞争实验探讨了原质体对于裸藻的适应意义，发现在黑暗环境和异养生长条件下原质体对于细胞的生存竞争有重要作用；2）改进了一种差异显示技术并利用该技术来研究质体的有无对基因表达的影响，证明质体丢失可导致某些核基因表达的显著变化。

Distribution and change of plastid pigment in various phases of tobacco leaves were introduced,and analysis and effect of plastid pigment on tobacco quality were described.

简要介绍烟草不同时期质体色素的分布及变化研究现状，综述了烟草质体色素的分析方法及对烟草品质影响的研究进展，展望了烟草质体色素研究在烟草品控中的应用。

This review had concisely introduced the type、the content and biological plastid of tobacco plastid pigment .

烟草质体色素对烟叶品质及可用性有着重要的影响。

To make comparison of adaptability of the plastid-less mutant and the wild type strain, we studied their growth characters under different culture conditions, found that the difference of their growth in a medium rich in organic substances are hardly detectable and that the loss of plastid exerts only a weak effect, if any, on the heterotrophic growth.

为比较完全失去质体结构的突变株和野生型的适应力，我们对二者在不同条件下的生长特性进行了研究，结果发现野生型与突变株的生长在有机质丰富的培养液中差别微弱，质体的丢失并不产生显著影响。

Two mode of plastid inheritance, uniparental maternal and biparental inheritance, were discovered in angiosperms at the beginning of this contury, and our knowledge of the mode and cytological basis of cytoplasmic inheritance, esp. plastid, has been improved in many respects following the new cytological and molecular techniques, eg. electron microscopy, DNA fluorescence and RFLP.

近几年由于电镜、DNA的荧光检测及RFLP等新的细胞学和分子生物学技术的发展，使对植物细胞质遗传形式及其细胞学基础有了一定的了解，但多是单一的方法或对雌、雄配子发生、发育个别发育时期研究的结果，对大部分植物种的质体遗传方式或细胞学基础仍不清楚，在有些植物种间应用不同的研究方法得出的结论也不一致。

Pro plastid A self-duplicating undifferentiated plastid , about 0.5-1μm in diameter and found in the meristematic regions of plants.

前质体：能够自我复制的没有分化的质体，直径约0.5-1微米，发现于植物分生组织区域。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。