Strigolactones' ability to regulate root development may be executed by induction of the ethylene pathway

被引:9
作者
Koltai, Hinanit [1 ]
机构
[1] Agr Res Org, Inst Plant Sci, Bet Dagan, Israel
关键词
strigolactone; auxin; ethylene; root; root hair; lateral root;
D O I
10.4161/psb.6.7.15501
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The newly defined phytohormones strigolactones (SLs) were recently shown to act as regulators of root development. Their positive effect on root-hair (RH) elongation enabled examination of their cross talk with auxin and ethylene. Analysis of wild-type plants and hormone-signaling mutants combined with hormonal treatments suggested that SLs and ethylene regulate RH elongation via a common regulatory pathway, in which ethylene is epistatic to SLs. The SL and auxin hormonal pathways were suggested to converge for regulation of RH elongation; this convergence was suggested to be mediated via the ethylene pathway, and to include regulation of auxin transport.
引用
收藏
页码:1004 / 1005
页数:2
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