title: Visualization of wounding-induced root-to-shoot communication in Arabidopsis.
abstract: It is known that wounding systemically activates the expression of various defense-related genes in plants. However, most studies of wound-induced systemic response are concerned with a leaf-to-leaf response. We have recently reported that the long distance signaling was also observed in the shoots of Arabidopsis seedling with wounded roots. We identified early and late root-to-shoot responsive (RtS) genes that were upregulated in the shoots of root-wounded seedlings at 30 min and 6 h post-injury, respectively. It is likely that the primary signals were rapidly transfered from injured roots to shoots, and then these signals were converted into chemical signals. In fact, increase of JA and OPDA content activated the expression of early and late RtS genes in shoots, respectively. In addition, we visualized wound-induced root-to-shoot response by using RtS promoter-luciferase (Luc) transgenic plants. Analysis of the AtERF13 promoter::Luc transgenic plants clearly shows that the wound-induced root-to-shoot signaling was rapidly activated via the vascular systems.
authors: Division of Life Science, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan.
authors: Yusuke
authors: Y
authors: Sogabe
authors: Haruna
authors: H
authors: Nakamura
authors: Tomoyuki
authors: T
authors: Nakagawa
authors: Satoko
authors: S
authors: Hasegawa
authors: Tomoya
authors: T
authors: Asano
authors: Hiroyuki
authors: H
authors: Ohta
authors: Kazuo
authors: K
authors: Yamaguchi
authors: Martin J
authors: MJ
authors: Mueller
authors: Hiroaki
authors: H
authors: Kodama
authors: Takumi
authors: T
authors: Nishiuchi
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