基本解釋[生物學(xué)]珠心胚英漢例句雙語例句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.珠心細胞只有兩層，細胞核大，胞質(zhì)豐富，內(nèi)含貯藏物質(zhì)，至心形胚期逐漸解體。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)鑒定，認為珠心胚植株在品質(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.雌配子體發(fā)育起源于珠心組織亞表皮下的孢原細胞其中只有一個孢原直接發(fā)育成為蓼型胚囊。nucellus embryo更多例句專業(yè)釋義生物學(xué)珠心胚