Journal
JOURNAL OF EXPERIMENTAL BOTANY
Volume 68, Issue 5, Pages 881-884Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jxb/erx028
Keywords
ABA (abscisic acid); Arabidopsis; auxin; axillary bud; branch; competition; phytochrome; R:FR
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Axillary bud growth - and specifically its release from apical dominance - has been a longstanding and complex area of research. Many phytohormone systems, as well as sugar signaling, have been implicated. Now, Holalu and Finlayson (see pages 943-952) have found compelling evidence that a much less-studied hormone in this context - abscisic acid (ABA) - may, in fact, be one of the first upstream factors regulating apical dominance responses to the R:FR ratio.
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