NSF Science and Technology Center for Engineering Mechanobiology, Department of Biology, Washington University in St. Louis, USA.
J Exp Bot. 2018 Jan 4;69(2):169-177. doi: 10.1093/jxb/erx298.
The plant hormone auxin is a central regulator of plant growth and development. Because auxin plays critical roles in cell division and cell expansion, plants use a number of cellular mechanisms to regulate auxin levels and response. Among these mechanisms is regulated input from the auxin precursor indole-3-butyric acid (IBA) toward the pool of active auxin [indole-3-acetic acid (IAA)]. In this review, we cover the mechanisms of IBA transport and conversion, and discuss specific roles for IBA-derived auxin in driving certain developmental events. We further discuss multiple open questions remaining for the IBA field.
植物激素生长素是植物生长和发育的核心调节剂。由于生长素在细胞分裂和细胞扩张中起着关键作用，植物利用许多细胞机制来调节生长素水平和响应。其中一种机制是来自生长素前体吲哚-3-丁酸（IBA）的调节输入，以维持活性生长素[吲哚-3-乙酸（IAA）]的池。在这篇综述中，我们介绍了 IBA 运输和转化的机制，并讨论了 IBA 衍生的生长素在驱动某些发育事件中的特定作用。我们进一步讨论了 IBA 领域中仍然存在的多个悬而未决的问题。
