期刊
TRENDS IN PLANT SCIENCE
卷 19, 期 11, 页码 727-733出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2014.06.008
关键词
plant hormone; strigolactone; auxin; cytokinin; PIN; D53; D14; MAX2; signal transduction
Strigolactones, previously identified as active stimuli of seed germination in parasitic plants, are now recognized as a new group of plant hormones that are active in both shoots and roots. Here, we review recent insights into the concepts of strigolactones-signal transduction and their mode of action. Although strigolactones are sensed via a cell-specific reception system, at least some aspects of their activity are conducted in a non-cell-autonomous fashion. Strigolactones also affect trafficking and plasma-membrane localization of the auxin transporter PIN, thereby regulating auxin flux. We present a model for strigolactone-signal transduction that might also explain the integration of strigolactones into other hormone-signaling pathways via the regulation of PIN auxin transporters.
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