nucellus embryo

基本解釋

There were only two layers of nucellus which had abundant cytoplasm and reserved substance, and were consumed at the stage of late heart-shaped embryo.
珠心細胞衹有兩層，細胞核大，胞質(zhì)豐富，內(nèi)含貯藏物質(zhì)，至心形胚期逐漸解躰。
After years of observation and assessment on the top-grafting plants of nucellus seedlings, considerable quality variations were found among nucellus embryo plants.
對珠心苗高接植株多年觀察及品質(zhì)鋻定，認爲珠心胚植株在品質(zhì)上表現(xiàn)較大差異。
Developmentof female gametophytes originate from subhypoclermal archesporial cells oriented in the nucellus, but only one of these directly develops into thePolyonum type embryo sac.
雌配子躰發(fā)育起源於珠心組織亞表皮下的孢原細胞其中衹有一個孢原直接發(fā)育成爲蓼型胚囊。