Noun:

1. a plant hormone that promotes root formation and bud growth

auxabbr.辅助的（=auxiliary）auxocyte初级性母细胞,性母细胞,生长细胞,增大母细胞auxisone异烟酸地塞米松auxilium[拉]诉讼救助auxoglucn.助甜团auxiliae爪基片auxotype生长型,营养型auxoflur[医] 助萤光物Auxietre奥谢特Auxvassen.欧沃斯(在美国；西经 91º54' 北纬 39º02')auximone植物激长素,发育激素,茁长激素

1. These buds themselves also produce auxin.
   这些叶芽本身也产生生长素。
2. 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。