| 1. | Pollen tube growth oscillates in rate . the underlying mechanisms that control oscillatory growth have been unknown
极性生长的花粉管表现出振荡式生长的特性，但其机理还不清楚。 |
| 2. | The process of pollen tube growth involves many aspects , especially the synthesis of cell wall and the cytoplasmic movements
花粉管的生长过程包括许多方面，其中最为重要的是花粉管细胞壁的合成和胞质运动。 |
| 3. | Other than the periodic oscillation in pollen tube growth rate , the amplitude of each oscillation also changes in an oscillatory behaviour
在花粉管生长速率呈现周期性变化的同时，生长振荡的振幅也表现出“小?大?小”的规律性变化。 |
| 4. | Cytosolic free ca2 + and actin microfilaments play crucial roles in the regulation of pollen tube growth and they may interact with each other
作为调控花粉管极性生长的重要因子， ca ~ ( 2 + )和微丝在调控花粉管极性生长过程中可能存在相互作用。 |
| 5. | Because of its slow growth rate and small volume , a special device was designed to observe the pollen tube growth and the dynamics of organelles more easily and accurately
由于拟南芥花粉管比较细小，生长速率较慢，本实验采用了自行设计的一种观察装置，可以方便、精确地观察拟南芥花粉管的生长行为。 |
| 6. | It would contribute to understanding the regulation mechanism of pollen tube growth only when more detailed studies of the biochemistry and physiological functions of ck2 had been done in pollen
至今，还没有人在花粉中检测ck2的存在以及研究它的功能。百合花粉ck2全长cdna的克隆，将有助于研究它在花粉中的生理生化功能。 |
| 7. | Our previous data suggested that the a , p 3 integrin - like proteins be present in lily pollen tube and mediate the interaction between pollen and extracellular matrix of pistil to regulate pollen tube growth
我室前期工作表明，百合花粉管质膜上存在类整合素、 3 ，并可能通过介导花粉管与雌蕊基质间的相互作用调节花粉管的生长。 |
| 8. | All the data above suggested that plc signaling pathway was present in lily and arabidopsis pollen and involved in signal transduction of extracelluar calmodulin to regulate the pollen tube growth
百合花粉plc的克隆及分析为plc存在并参与花粉萌发和生长提供了分子水平的证据，也使胞外cam的信号及传递假说开始有分子生物学方面的依据。 |
| 9. | Ecms associated with pollen tube growth include arabinogalactan proteins , extensin - like glycoproteins , proline - rich proteins , calmodulin , s - glycoproteins , pectins and those that specifically located in the ovary
与花粉萌发和花粉管生长相关的雌蕊胞外基质种类主要包括阿拉伯半乳糖蛋白、类伸展素糖蛋白、富含脯氨酸糖蛋白、钙调素、 s -糖蛋白、果胶以及子房的特异性物质等。 |
