Two patterns of arabidopsis pollen tube oscillatory growth were detected by using this device 观察发现，体外生长的拟南芥花粉管存在两种振荡生长方式。
Internal fertilization takes place in the seed plants and some clubmosses and ferns , often by means of a pollen tube 种子植物、某些石松和蕨类植物依赖于花粉管完成体内受精。
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。
The research for this thesis used pollen tubes of arabidopsis thaliana as the model material to study the mechanisms 本论文工作选用拟南芥花粉管为实验材料研究花粉管振荡生长的调控机制。
In seed plants it is the generative cell in the pollen grain , which divides in the pollen tube to produce two sperm cells 在种子植物中，它是在花粉粒中的生殖细胞，可以在花粉管内分裂形成两个精子。
Generative nuclei the two gametic nuclei formed by the division of the generative cell in the pollen tube of angiosperms 雄原核：在被子植物花粉管中的生殖细胞（应为雄原核译者注）分裂成两个配子的核。
Enclosure of the nucellus by the integuments is incomplete , the embryo sac or , in gymnosperms , to the archegonium 珠被并不是将珠心完全封闭，而是留有珠孔以便受精时花粉管进入胚囊，或裸子植物的藏卵器。
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。
Cupressus ) the pollen grains contain just two nuclei : a generative nucleus and a vegetative nucleus ( tube nucleus ) 当花粉粒形成后，花粉粒壁上分布有萌发孔，花粉管从萌发孔处向外突起形成管状结构，生殖核转入管中。
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。
