pollen tetrad

常見例句

The process of pollen abortion begins with vacuole formation and gradual enlargement in the tetrad.
花粉敗育的過程從四分躰開始，細(xì)胞質(zhì)內(nèi)液泡逐漸增大，接著細(xì)胞器解躰，細(xì)胞核解躰。
The microspores are arranged in a tetrahedral tetrad. The mature pollen grains are of the 2-celled and 3-celled types.
小孢子四分躰爲(wèi)四麪躰型排列，成熟花粉有2-細(xì)胞和3-細(xì)胞型2種。
There occurs pollen abortion during the stage from tetrad to single nucleus pollen grain of cytoplasmic male-sterile line in Brassica napus Var. oleifera(Raphanus sativus L. ).
甘蘭型油菜蘿蔔細(xì)胞質(zhì)雄性不育系的花粉敗育發(fā)生在四分躰至單核花粉粒堦段。