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In order to understand the function of this gene within short time, we also constructed yeast (Schizosaccharomyces pombe vector to analyze the gene function, but the result investigated that over expression of this gene could not increase the length of yeast cell. It suggested that expression of the gene is not a direct reason in cell elongation.

为了在短时间内初步研究该基因的功能,构建了酵母表达载体,利用裂殖酵母表达系统对该基因的功能进行活体分析,没有发现该基因对单核的酵母细胞的伸长有明显影响。

The results showed that 7-day-precultured embryogenic calli had the best responses for bombardment among 2-7 day' preculture duration. Enhanced transformation efficiency was found in the explants treated with high osmotic medium 4h prior to till 24 h after bombardment. Particles of gold and tungsten were both found suitable for rice transformation and there was no adverse effect when tungsten particles were reduced to 1/3 standard amount for DNA precipitation on transient GUS gene expression. However, it was found that gold particle had higher GUS expression at 120 h post-bombardment. A preliminary microprojectile transformation system with an average of 15-20 blue spots/explant GUS expression was routinely obtained for 'Tainung 67' by using the particle gun with 1,100 psi rupture disk, 6 or 9 cm microcarrier flight distance and 4 mm of macrocarrier flight distance setting.

初步结果显示,以预培养2~7日之胚性癒合组织逐日测试转殖率,以预培养7日之培植体表现最佳;培植体於转殖前4小时至转殖后24小时以高渗透压培养基处理,有助於转殖效率之提高;比较金、钨粒子对转殖率在转殖后48h並无不同,但转殖后120 h取样,则金粒子组有较高之蓝点数;钨粒子用量可减少至1/3標准用量对转殖率並无影响;利用基因鎗在使用1, 100 psi裂碟片、大载片至挡片之距离为4 mm、微载髁至射击目標之飞行距离6或9 cm之设定,GUS基因表现之平均蓝点数均可达15~20个/培植体。

It was recently reported in Japan that effective component of the extract of Rubia Cordifolia L has obvious inhibition for leukemia, cancer of colon and carcinoma of the lung in mice, its curative effects equaled or exceeded to the catharanthine, mitomycin and adriacin and had less virulence for normal cells.

近来日本学者系川秀治等研究发现茜草提取物中的有效成分环己肽类化合物对小鼠的白血病、腹水癌、大肠癌、肺癌均有明显的抑制作用,其疗效等于或优于长春碱,丝裂霉素、阿霉素,并且对正常细胞的毒性低。

Schizophyllum sp. F17 can use rice hulls to produce manganese peroxidase by solid-state fermentation. Important parameters were optimized through orthogonal tests and five dyes with different structures were decolorized by applying MnP.

采用稻壳作为基质,利用裂褶菌F17固态发酵产锰过氧化物酶,通过正交实验对发酵条件进行优化,并对5种不同结构类型的染料进行脱色。

Spondylolysis were showed in sagittal images. Conclusion: The scan range were increased for the fourth lumbar to first sacroiliac interverteral disc and contained vertebral arch for conventional intervertebral disc. The spiral scanning were performed for lumbar spondyloschisis and with MPR along the direction of vertebral arch. The method is simple and useful for the patients suffered low-back pain.

对常规椎间盘扫描采用对L(下标 4~5)及L5~S1,椎间盘加大扫描范围,包括椎弓根层面的方法,对于轴位扫描发现或可疑峡部裂的患者再做相应椎体螺旋扫描,行平行于峡部的椎弓长轴多平面斜矢状面和矢状面重建,是腰腿痛病人CT检查的简单、实用的有效方法。

Corolla rotate to subcampanulate; tube thin, fleshy; lobes thin to thick, fleshy, valvate in bud. Stamens exserted; filaments very short, flat; anthers 2- or 4-locular, connate or free, base 2-parted, introrse.

对近钟状辐状的花冠;筒部薄,肉质;对厚薄,肉质,镊合状的裂片在里芽雄蕊外露;花丝非常短,平;花药2-或者室,合生或离生,基于2深裂,。

It has been warranted through experiments and practical application that rare-earths-high-aluminium heat-resistant nodular iron has some intrinsic properties which are worthy of reconimandation, namely,that it will not scale after long periods of use at 1050-1100℃, will hardly break while being hammered into castings, runners or risers as the high-temperature tensile strength reaches 14-19 kg/mm2 at 800℃ or≥l3.3kg/mm2 at 900℃, with the room temperature strength close to HT 30-50 and the unnotched impact str...

本文介绍了稀土高铝耐热球墨铸铁的生产实践、化学成分;探讨了稀土作用及其用量和控制;论述了稀土和铝加入方式以及冷却速度对金相组织的影响;并对铸造工艺、铸件缺陷及分析、耐热性能及使用效果作了阐明。试验和使用证明:稀土高铝耐热球墨铸铁在1050~1100℃长时间工作不起氧化皮,热强度800℃时,14~19kg/mm~2,900℃时≥13.3kg/mm~2,室温强度近于HT30—54,a_k≈2~6kg·M/cm~2,锤击铸件或浇冒口,很难碎裂,并能机械加工。可以认为是以我国富产资源为原料,能用各种炉子熔炼、耐热和综合机械性能均较高硅、中硅中铝球铁、高铝片墨铸铁为高的一种耐热铸铁,也是镍铬系耐热材料较好的替代品。

Since the darts appeared in 13 century ,fashion is improve in structural design .Tthe transition of darts is more And more than before ,and very important in sculpt of fashion along with fashion technic's improving. They can remove some electrophoresis ,for example , ruffle、oblique fissure、overlap And so on, which produced by the plain fashion fabric cover with the cambered surface of the body. They can chang the size And figure of garment piece in different way ,make out different delicate And fit sculpt,win the beautiful effect also.

自13世纪省道的出现,服装在结构设计上便有了一次巨大的飞跃,随着服装技术的发展以及对服装造型的研究,省在服装中的运用越来越多,对服装的造型也越来越重要,它们可以消除平面的布料覆盖在人体曲面上所出现的皱褶、斜裂、重叠等现象,能从各个方向改变衣片块面的大小和形状,塑造出各种美观贴体的造型,达到美化人体的作用。

It is seen that the abrasive grains are friable materials containing large numbers of cracks and intergranular voids; There are five different kinds of fragmentized sections,i .

利用矿物结晶学和断裂力学理论解释了磨料内部缺陷对磨料破碎过程及破碎强度的影响,相应五种裂面提出了五种破碎模型,并对磨料破碎的强度计算公式进行了讨论。

Owing to placenta and milk transshipping effect, the content of Aroclor 1254 in fetal and infant vivo was very low, so there were not significantly pathological changes in sexual gland, the effect of Aroclor

2首次以排卵数、受精率、受精卵的第一次卵裂率、桑堪胚发育率、囊胚~孵化胚发育率、以及发育延迟胚和退化变性胚的比率,对个体发育的不同时期接触不同剂量 AroClor 1254对小鼠卵子发生、受精和附植前胚胎体内发育毒性进行系统定量。

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