| 1. | Then , the sensitivity of the subunits to trypsin traetment was compared by polypeptide pattern among these five psii preparations with sds - page
分别用不同浓度的胰蛋白酶对这5种ps制剂进行限制性蛋白酶解处理， sds - page分析多肽组分变化。 |
| 2. | The major target of photoinhibition is photosystem ii ( psii ) on which photoinhibition make photosynthetic efficiency decreased , electronic transportation blocked and reaction center protein dl photodamaged
已有研究表明ps是主要靶点，光抑制时表现为： ps光合效率下降、 ps电子传递链活性下降及核心蛋白被氧化而破坏。 |
| 3. | After treated for 100 days , f0 / tchl of psii of one , two and three years old seedlings were 1 . 6359 , 1 . 2938 , 1 . 8250 tines of the control respectively , which showed that the energy did not engage in photochemical reaction increased
熏气处理100天以后，一、 h和三年生苗木的光合速率分别是对照的68 96 、 47 97和68 76 。 |
| 4. | Under freezing conditions , n . commune deactivated the photosystem ( ps ) ii activity , which may protect the cells from photoinactivation . light energy absorbed by psii complexes was also dissipated to heat energy
在冻结条件下， nostoccommune的ps活性失活， ps复合体吸收的光能转化为热能耗散，由此保护了细胞免受光抑制的伤害。 |
| 5. | Psii consists of more than 20 different subunits , most of them being integral membrane proteins , mediating the electron transfer chain . so revealing the organization of psii subunits is a key point to elucide the mechanism of psii function
Ps的各蛋白组分有序地排列在类囊体膜上，通过其结合的辅因子形成了独特的电子传递和水裂解体系。 |
| 6. | ( 3 ) dlc films were prepared by combining psii method with pecvd method , the films got not only smooth surface morphology but also strong adhesion , in such a fashion that it was the best method
( 3 )通过全方位离子注入和等离子体增强化学气相沉积相结合，发现制备出的类金刚石薄膜既改善了表面形貌又增强了结合力，因此证明了这是一种较好的制备方法。 |
| 7. | These proteases were different with the ones reported in past and it suggests that there may be more proteases associated in psii of chloroplasts of spinach . such as , one of them could be resistant to 1 mol / l nacl and be almost inhibited by 1 mmol / l dtt or mercaptoethanol
比如，一种蛋白酶对1mol l浓度的nacl溶液不敏感，但是受到dtt和巯基乙醇的强烈抑制以及1mmol ledta的部分抑制，而且这种蛋白酶能够降解18kd外周多肽，在较广的ph值范围内都具有活性。 |
| 8. | Diamond - like carbon gradient film on ti6a14v alloy substrate have been prepared by means of plasma source ion implanted - ion beam enhanced deposition ( psii - ibed ) . for potential applications as artificial joint materials and artificial cardiac valve materials , its trobological performance and hemocompatibility has also been evaluated in the present ph . d . thesis
本研究采用等离子源离子注入?离子束增强沉积技术( psii - ibed )制备了钛合金基类金刚石梯度薄膜材料，对类金刚石梯度薄膜这一新型人工关节材料和人工心脏瓣膜材料的生物摩擦学性能和血液相容性进行了研究和评价，研究了摩擦磨损对材料血液相容性的影响。 |
| 9. | The results were summarized as follows : ( 1 ) diamond - like carbon films could be fabricated by plasma source ion implantation ; it was found that different parameters such as the negative voltage , frequency , gas flux influenced sp3 bond ratio of dlcs , the paper described the effect in details and showed that diamond - like carbon films with increasing negative voltage , reducing frequency , appropriate gas flux got high proportion of sp3 bond ; dlcs prepared by psii contained a good deal of sic , the composition affected its properties ( such as the films hardness ) ; psii method could offer good adhesion to dlcs , but it caused the surface morphology to become asperity
研究结果表明： ( 1 )用全方位离子注入技术能够制备出类金刚石膜。在全方位离子注入技术中，不同的偏压、频率、气体流量都对薄膜中sp ~ 3键比例有所影响，文中对具体的影响进行了分析，发现偏压增加、频率降低和适中的气体流量可以制备出含sp ~ 3键较多的类金刚石膜；同时发现用全方位离子注入技术制备的类金刚石膜含有大量的sic成份，这对薄膜的性能(例如硬度)影响很大；用全方位离子注入制备的薄膜其结合力得到增强，但薄膜的表面形貌差。 |
| 10. | For uncovering the effects of reversible phospharylation on the structure and function of psii reaction centre , we purified a protein phosphatase associated membrane from the thykaloid membrane of ipomoea aquatica chloroplasts . in our experiments we studied the enzymology and spect rum characters of the purified phosphatase . in our lab , one kind of protein phosphatase associated thylakoid membrane of pomoea aquatica has been isolated
迄今人们对类囊体蛋白磷酸酯酶的研究较少，为了研究可逆磷酸化对psii反应中心结构与功能的影响，本文以蕹菜为材料，从叶绿体类囊体膜中分离纯化到一种膜结合蛋白磷酸酯酶，进行了酶学性质和光谱性质的研究。 |
