精胺

结果表明，精胺能诱导PS脂质体的凝聚，但不能诱导其融合。

Spermine could induce the aggregation of PS liposomes but could not induce the fusion of vesicles .

作者总结柠檬酸盐、肌醇和精胺是潜在的重要的人EPS前列腺癌标记物。

The authors concluded that citrate , myo-inositol and spermine are potentially important markers of prostate cancer in human EPS .

亚精胺诱导DNA凝聚的有序性的AFM研究

AFM observation of the local ordering characteristics in spermidine condensed DNA

在种子萌发过程中，蛋白质、RNA和DNA含量的变化模式与精胺和亚精胺含量的变化极相似。

The contents of protein , RNA and DNA showed a pattern similar to the SPD and SPM .

这些观察暗示了亚精胺诱导DNA凝聚可能是一个分级自组装过程。

These observations suggest that DNA spermidine condensation could have multiple stages , which are very sensitive to the DNA and spermidine concentrations .

方法：采用HPLC法分别测定10个鹿鞭样品腐胺、精胺及精脒的含量。

Mehtods : The putrescine 、 spermidine and spermine in penis et Testis Cervi were determined by HPLC .

观察生物体内DNA凝聚参与物&亚精胺对DNA的凝缩作用将有利于深入理解DNA在体内的紧密存储机制。

Condensation of DNA by multivalent cations can provide useful insights into the physical factors governing the folding and packaging of DNA in vivo .

NaCl胁迫下亚精胺对番茄种子萌发及幼苗抗氧化系统的影响

Effects of spermidine on seed germination and seedling antioxidant system of tomato under NaCl stress

亚精胺预处理对NaCl胁迫下青稞幼苗生理特性的影响

The Effects of Spermidine Pretreatment on Physiological Characteristics of Hulless Barley Seedlings under NaCl Stress

目的：研究非病毒基因载体葡聚糖-精胺阳离子聚合物（DSP）的合成及其与DNA所形成复合物的物理性能。

Objective : To develop dextran-spermine polycation ( DSP ) as a non-viral gene vector and to investigate the physical property of DPS-DNA complexes .

本文研究了葡聚糖-精胺阳离子聚合物（DSP）基因载体的性能及其对体外细胞基因的转染效率。

This work reports the properties of dextran-spermine polycation ( DSP ) as a gene vector and its gene transfection efficiency in vitro .

亚精胺处理对猕猴桃呼吸强度及PG活性的影响

Effects of spermidine on respiration and PG activity of kiwifruit during the storage

亚精胺（Spd）和腐胺（Put）的比值（Spd/Put）高于对照组的2倍；

The ratio between Spd and Put ( Spd / Put ) is two times more than that of the control ;

添加外源SNP提高了腐胺、亚精胺和精胺三种多胺的含量。

Exogenous SNP improve putrescine 、 spermidine and spermine elevated polyamine level .

对于新红星苹果外源Spd提高了叶片内源亚精胺和精胺的含量。

In the Starkrimson leaves , the spermidine and spermine contents increased .

精胺处理可以延缓chl含量，SOD和CAT活性的下降，阻止MDA含量的升高。

Treatment with spermine could delay the decrease in chlorophyll content , SOD and catalase activities and prevent the increase in MDA content .

RNA／DNA比值与DNA含量的变化趋势相反。叶片的亚精胺（Spd）含量与DNA含量的变化趋势一致。

The changes of RNA / DNA ratio was opposite to that of DNA content , whereas the spermidine ( Spd ) content of leaves was the same as that of DNA content .

甜菜碱可以显著提高盐胁迫下大麦幼苗根系多胺含量，促进叶片内腐胺与亚精胺向精胺的转化，提高叶片的（Spd+Spm）Put的比值。

Exogenous glycine betaine increased the polyamines content of roots dramatically , facilitated the conversion of Putrecine ( Put ) and Spermidine ( Spd ) to Spermine ( Spm ) and enhanced the ratio of ( Spd + Spm ) / Put in leaves obviously .

在样品制备过程中，应用不同的试剂（如：Mg2+、APTES、亚精胺等）来修饰云母表面，都成功地用原子力显微镜成像出DNA等分子图像。

Using different reagents to modify mica surface such as Mg2 + , APTES , spermidine , we have successfully imaginged the DNA molecules by AFM .

目的以琥珀酸脱氢酶（SDH）为指标，探讨亚精胺（Spermidine，Spd）对日本血吸虫成虫培养细胞生长代谢的影响。

Objective To investigate the effect of Spermidine ( Spd ) on succinate dehydrogenase ( SDH ) in the cultured cells from adult Schistosoma japonicum .

提示在水稻CMS系及其保持系幼穗发育过程中乙烯与多胺（精胺和亚精胺）的生物合成竞争SAM。

It is shown that PA ( Spd and Spm ) and ethylene biosynthesis pathways compete for SAM during the development of panicle of CMS line and its maintainer line in rice .

柑橘逆境中外源亚精胺的作用及多胺类基因SAMDC的表达分析

The Effect of Exogenous Spermidine and SAMDC Expression Analysis in Citrus under Stress

以红富士苹果和新红星苹果为试材，研究了花芽生理分化期叶片内源多胺（PAs）的变化和外源亚精胺（Spd）对内源多胺含量的影响。

The changes of endogenous polyamine contents and the effects of exogenous spermidine on endogenous polyamines in leaves during flower bud physiological differentiation were studied with Red Fuji apple and Starkrimson .

10ppm亚精胺有相同结果。

Similar results have been obtained using spermidine of 10 ppm .

聚胺；多胺一组含有两个或多个胺基的有机化合物中的任一种亚精胺浸种对玉米幼苗根尖线粒体ATPase活性与结合态亚精胺含量的影响

Any of a group of organic compounds that contain two or more amino groups . Effect of Seed Soaking with Spermidine on ATPase Activity and Conjugated Polyamine Content in Mitochondria Membrane of Maize Seedling Root under Osmotic Stress

外源亚精胺缓解荇菜（Nymphoidespeltatum）Cr~（6+）毒害的生理研究

Toxic effects of Cr ~ ( 6 + ) on Nymphoides peltatum mitigated by exogenous spermidine

在龙眼果实发育早期（花后5d），幼果中腐胺（Put）、亚精胺（Spd）含量较高，随着果实发育而下降。

At the early stage of longan fruit growth ( 5 days after anthesis ) the contents of putrescine ( Put ) and spermidine ( Spd ) were rather higher in young fruit but decreased with the fruit development .

并结合外源喷施精胺（Spm），测定外源Spm对水分胁迫下小麦叶片不同种类多胺（PAs）的含量、蛋白酶活性、蛋白质和氨基酸含量、核酸酶活性、核酸含量和保护酶活性。

And by spraying Spm on wheat seedlings leaves , determined PAs content , proteinase , nucleic acid enzyme and protect enzyme activities , protein , amino acid and nucleic acid content under water stress .

低温（1±1）℃条件下，精胺处理可有效抑制青椒果实的呼吸强度，减少果实叶绿素和Vc含量的分解及MDA的积累，延缓相对电导率上升，降低果实腐烂指数和冷害指数的上升。

Spermine treatments could restrain respiratory intensity significantly , reduce the decomposition of Chlorophyll and Vitamin C , inhibit the rising of relative electrical conductivity and MDA content , decreased the rising of rot index and chilling index at ( 1 ± 1 )℃ .

这可能是由于外源亚精胺被Hela细胞吸收，并在细胞内发生代谢，降低GSH/GSSG比率，使细胞受到氧化胁迫而最终诱导凋亡发生。

This may be due to the absorption of exogenous spermidine by Hela cells and metabolism within the cells as well as reduction of the GSH / GSSG ratio , thus leading to oxidative stress and apoptosis eventually .