亲和性

Both high-affinity and low-affinity transport systems for ammonium and nitrate are found in plant plasma membrane.

细胞膜上存在著铵态氮和硝态氮的高亲和性与低亲和性转运系统。

The results suggest: the three culturalss pollen germination percentage were more than 60% 4 h after cultured in liquid culture medium composed 10% sucrose, 24℃; Florescence most concentrated April third-tenth (2003); For Zaomeisu and Qiyuesu ,their anthotaxy and flower self setting fruit percentage were more than 90%,except for China pear 1, anthotaxy self setting fruit percentage was 48.3%, flower self setting fruit percentage was 33.1%; Their cross-compatibility was higher, anthotaxy and flower self setting fruit percentage almost reached 100%, the lowest also reached 94.9%, but last self-compatible gathering fruit percentage was lower comparatively and fruit average seed numbers were lower, while cross-compatible gathering fruit percentage and fruit average seed numbers were closed to that of nature pollination.

对梨品种亲缘关系很近的早美酥、中梨1号、七月酥等进行的花粉发芽率、花期调查、自交亲和性、异交亲和性调查的结果表明：三者的花粉在10%的蔗糖液培养基上，24℃左右培养4h后花粉发芽率均能达到60%以上；三者的花期大都集中在4月3日-10日(2003年)；早美酥、中梨1号、七月酥的自花授粉坐果率，除中梨1号的花序自花授粉座果率为48.3%，花朵自交座果率为33.1%外，早美酥、七月酥的花序自交座果率和花朵自自花授粉座果率均达到90%以上；它们的异花授粉坐果率更高，在本试验中花序坐果率和花朵坐果率都可达到94%以上，但最终采果率自花授粉的相对低一些，果实平均种子数也低，异花授粉的最终采果率和果实平均种子数与自然授粉条件下的近似。

There was noevident cause-effect relationship between the formation and theamount of callose and the recognition reaction of theincompatibility.A great deal of ester was secreted.from pollenfuurow in 30 minutes after pollination,and the ester covered stigmaand pollens.The secretion sustained about two hours.

用扫描电子显微镜在授粉后间隔不同时间跟踪观察了亲和性授粉和不亲和性授粉的花粉与柱头相互作用的特征和特性，观察结果发现，在授粉30分钟内，花粉粒开始从花粉沟向外分泌大量脂类物质，覆盖柱头和花粉粒，分泌作用大约持续2小时结束。

The effect on overcoming self-incompatibility and species-incompatibility of different pollination methods for Nove Cento lily and Prato lily has been studied.

以新中心、普瑞头两种亚洲百合为母本，调查了 4种授粉方法对克服百合自交不亲和性与种间不亲和性的影响。

We coupled the IgG of monoclonal antibody N34 specific to UK and the Fab of monoclonal antibody SZ-51 specific to the membrane protein GMP-140 of activated platelet. The bispecific antibody (N34 SZ-51) is able to bind UK and plasma-clot simutaneously. It enhanced plasma clot lysis 5 fold by HUK whereas it enhanced plasma clot lysis 38 times by LUK. UK in association with the bispecific antibody didn't decrease the concentration of fibrinogen in the assay supernatants.

利用抗体介导使纤溶酶原激活剂定向到血栓表面，可大大提高其纤溶作用，我们用双功能团试剂将抗尿激酶的单克隆抗体N34的IgG和抗活化血小板膜蛋白GMP-l40的单抗SZ-5l的Fab片段通过二硫键共价偶联，合成的双专一性抗体（N34-SZ-51）既具有血栓亲和性也具有尿激酶亲和性，从而增加了尿激酶对血栓的专一性，使高分子量尿激酶溶栓率提高了5倍，使低分子量尿激酶溶栓率提高了38倍之多，且不影响血浆中纤维蛋白原的含量。

Lam. and its related species are called plants of Ipomoea section batatas, which are classified into two groups based on the cross-compatibility with sweetpotato: Group I cross-compatible with sweetpotato and Group II cross-incompatible with sweetpotato.

根据同甘薯的杂交亲和性，将甘薯组植物分为两个群：同甘薯杂交亲和的第Ⅰ群和同甘薯杂交不亲和的第Ⅱ群。

The results showed that 17 gene fragments were expressed exclusively,26 gene fragments expressed increasingly,and 20 gene fragments expressed decreasingly in incompatible combination compared with either in compatible combination or in control.

结果表明，非亲和性互作中特有的表达片段7条，较亲和性互作及对照表达明显增强的片段21条，表达明显减弱的18条。

The types, attributes, generation mechanism and enzyme activity of eliminative system of active oxygen species in plant are presented in this paper. In addition, the possible function of active oxygen species that may contribute to disease resistance and the difference of active oxygen species between compatible reaction and incompatible reaction in plant- pathogen interaction are discussed. And the paper commented on the relationships among the aspects talked above.

本文介绍了植物与病原物相互作用过程中活性氧的类型、性质以及活性氧的产生机制和清除系统酶活性；重点讨论在植物与病原体相互关系中活性氧的可能作用，以及植物－病原物亲和性互作与非亲和性互作之间在这方面的差异并对以上几个方面之间的关系进行了评述。

The selectivity for K over Na of the low affinity K uptake system in the roots of Puccinellia tenuiflora was approximately similar to that in glycophytes. However, the selectivity for K over Na of high affinity K uptake system in the roots of Puccinellia tenuiflora was much stronger, which indicated that HAK and HKT played very significant roles in the process.

小花碱茅根低亲和性K 吸收系统对K 、Na 的选择性吸收能力与甜土植物大致相同；但其高亲和性K 吸收系统的选择性能力很强，表明HAK和HKT在此过程中起重要的作用。

Among the bacterial strains, 5 strains of RP,RS,RT,RX and RY were suscept ib le to all 20 phage strains, so they could be used as indicative bacteria for det ecting the phage particles in checking samples in order to forecast bacterial le af s treak of rice with the bacteriophage isolation technique in Hubei Province.

根据它们相互的亲和关系，可把10个细条病菌菌株划分为6个组，把20个噬菌体划分为7个溶菌型；其中RP、RS 、RT、RX、RY等5个细条病菌菌株可与所有参试的20个噬菌体发生亲和反应，据此在用噬菌体技术进行湖北省水稻细菌性条斑病的测报工作中，这些广亲和性的菌株可作为指示菌。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。