亚精胺

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

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 .

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 .

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

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 .

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 .

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 .

喷施外源腐胺和亚精胺可以提高油菜叶片SOD、CAT活性，增加细胞膜的稳定性，亚精胺作用效果优于腐胺，缺硼条件下比正常供硼时表现更明显。

The activity of SOD and CAT in rapeseed leaves was enhanced , the stability of cell membrane was improved by exogenous putrescine ( Put ) and spermidine ( Spd ), especially in the condition of boron deficiency . Moreover , the effect of Spd exceeded Put .

在以流速为1ml／min、流动相为乙腈（52%v／v）、通过5－μMC18反相柱在检测峰为254nm的条件下，腐胺、亚精胺、精胺均能完全溶解。

Putrescine , spermidine , and spermine can be completely resolved by reversed phase HPLC , isocratic elution with acetonitrile ( 52 % ) through a 5 μ m C 18 column , and detection at 254 nm .

不同时期亚精胺处理对猕猴桃贮藏效果的影响

Effects of Spermidine on Storage Property of Kiwifruit at Different Period

亚精胺对柿果采后乙烯生物合成的影响

The Effect of Spermidine on Ethylene Biosynthesis of the Postharvested Persimmon

亚精胺浸种对水稻种子萌发及秧苗生长的影响

Effect of Spermidine Soaking Seed on Germination and Seedling Growth for Rice

亚精胺对日本血吸虫培养细胞影响的研究

Effects of SPERMIDINE on Cultured Cells from Schistosoma Japonicum

亚精胺在分解代谢过程中会生成自由基等代谢产物，并影响细胞活力。

Spermidine can produce free radical during its catabolism and affect cell viability .

外源亚精胺对盐胁迫下滨藜抗盐性的影响

Effects of Exogenous Spermidine on the Salt Resistance of Saltbush under Salt Stress