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- auxin precursor 生长素前体
- The precursor of the modern car was a horseless carriage with a petrol engine. 现代汽车的前身是不用马拉的，装有汽油发动机的车子。
- Thefirst telephone was the precursor of modern communications networks. 最早出现的电话是现代通讯网的雏型。
- The precursor or stem cell of a plasma cell. 成浆细胞浆细胞的前体细胞或干细胞
- These buds themselves also produce auxin. 这些叶芽本身也产生生长素。
- A precursor cell of a melanocyte or melanophore. 成黑素细胞产生黑素细胞的母体细胞
- Error is often the precursor of what is correct. 错误常常是正确的先导。
- The precursor or stem cell of a plasmacell. 成浆细胞浆细胞的前体细胞或干细胞。
- An originator of a line of descent;a precursor. 前辈家族血脉的开始者；先驱
- An originator of a line of descent; a precursor. 前辈家族血脉的开始者;先驱。
- A severe cold may be the precursor of pneumonia. 重伤风可能是急性肺炎的先兆。
- Lysine is a precursor of certain alkaloids. 赖氨酸是某些生物碱的前体。
- The first ribin us a precursor of spring. 头一只知更鸟是春天的先兆。
- ARJ21 is seen as the precursor to a jumbo jet. ARJ21型飞机被看作是大型喷气式飞机的前身。
- Her precursor as school principal was an eminent educator. 她任校长前是一位卓越的教育家。
- Crazing is the invariable precursor of brittle fracture. 出现小裂纹必然是脆性断裂的前兆。
- The AUX/IAA class of genes are rapidly induced by exogenous auxin ar. 在拟南芥中,我们已经知道AUX/IAA丛因能快速地被外源生长素诱导,并且许多这个家族的基因已经被详细地描述。
- Auxin, cytokinin and abscisic acid contents also affect male sterility. 在雄性不育特性方面，生长素、细胞分裂素和脱落酸有重要作用；
- The results also showed that auxin could raise the amount of root RNA. 试验中发现生长素提高根系核酸的含量。
- These include the chlorophyll precursor protochlorophyllide a. 这些受体包括叶绿素的前体原叶绿酸a。
