Regulation of root growth by auxin-ethylene interaction.
نویسندگان
چکیده
A large portion of indoleacetic acid (IAA)-induced inhibition of excised root tips and virtually all such inhibition of intact roots are the result of IAA-dependent ethylene production. Under certain conditions an additional effect of IAA accounts for a small portion of the inhibition of excised root tips. Ethylene production in response to applied IAA is governed by the level of applied auxin found inside the root. Evidence is presented to confirm the participation of ethylene in the geotropic response of roots.
منابع مشابه
Ethylene regulates root growth through effects on auxin biosynthesis and transport-dependent auxin distribution.
In plants, each developmental process integrates a network of signaling events that are regulated by different phytohormones, and interactions among hormonal pathways are essential to modulate their effect. Continuous growth of roots results from the postembryonic activity of cells within the root meristem that is controlled by the coordinated action of several phytohormones, including auxin an...
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ورودعنوان ژورنال:
- Plant physiology
دوره 45 2 شماره
صفحات -
تاریخ انتشار 1970