四分孢子的

By the support of the present project, 3 articles have been published, 4 articles have been submitted to Grana and Acta Botanica Yunnanica etc and some papers is in preparing.

结果表明：蕨类植物孢子外壁和周壁来源于孢子囊内层绒毡层细胞；孢子表面纹饰有的种类由外壁形成，有的种类是由周壁形成；孢子纹饰是在四分孢子形成后迅速形成的，形成的时间很短并比较稳定。

G. tenax spores include tetraspore and carpospore which both like balls, having similar morpha and size with a diameter of about 22.0 μm. Development process and morphological changes of these two spore species were also similar.

鹿角海萝的孢子包括四分孢子和果孢子，其形状和大小相似，球形，直径约22.0μm.2种孢子附着后的发育过程及各发育阶段的形态特征也相似。

The characteristics of tetrad was that the nucleus and Golgi bodies being in the active state.

四分孢子的显著特征是细胞核和高尔基体呈活跃状态。

The tapetum cell of normal anther begin to disintegrate after the formation of tetrad.

正常花药的绒毡层细胞在四分孢子形成之后开始解体。

The rate of conidial germination of C.verruculosus on leaves of four turfgrass species after 3h of inoculation showed no significant differences.

弯孢霉分生孢子在四种不同的草坪草上都较易萌发，24h时萌发率均超过90％，48h时在狗牙根叶片上萌发率达100％。

Polysaccharides from wild tetraspotophytic and female gametic thalli of Gracilaria lemaneiformis (denoted as TP and FGP respectively) were extracted with hot water and a comparative study was made on their chemical characteristics and structures.

对青岛野生龙须菜四分孢子体和雌配子体中多糖的化学特性和结构进行了比较研究。

Equal chromosome divisions resulted in two poles with chromosome n=12 at anaphase I , and four poles at anaphaseII.

保持系的四分孢子经过单核和双核期后形成成熟花粉粒。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。