英语词汇nucellus怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	nucellus
释义	nucellus 英/ nju??sel?s / 美/ ?nj?sel?s / 简明释义 n.[植] 珠心复数 nucelli 网络释义 1 [植]?珠心 ... 主要成份:纤维素,果胶质,半纤维素,Pr 珠心(nucellus) 珠被(integument) ... 2 ?一整团珠心 ...柄(funicle)为连接胚珠与胎座的短柄，其内的维管束将胚珠与子房连接起来以传递营养与激素。发育的胚珠最初是一整团珠心(nucellus)组织，由于基部.. 短语 1 nucellus embryo 珠心胚 2 degeneration of nucellus 珠心退化 3 degenerated nucellus which 珠心组织双语例句 1 The integument grew fast and overgrew the nucellus. 珠被生长较快，并逐渐包围珠心。 2 The nucellus is usually degraded and absorbed as the endosperm develops. 珠心通常在胚乳发育时被分解和吸收。 3 The female archesporium differentiates from the single cell under the epidermis of nucellus. 雌性孢原处于珠心表皮之下，为单细胞。词源 1 nucellus: From French nucelle ?(“little nut”), from Latin nux ?(“nut”). FROM: wiktionary 2 nucellus: 来自法语nucelle("little nut"), 来自拉丁语nux("nut").
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