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Physical interaction between SnRK2 and PP2C is conserved in Populus trichocarpa

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Title: Physical interaction between SnRK2 and PP2C is conserved in Populus trichocarpa
Authors: Song, Xueqing Browse this author
Ohtani, Misato Browse this author
Hori, Chiaki Browse this author →KAKEN DB
Takebayasi, Arika Browse this author
Hiroyama, Ryoko Browse this author
Rejab, Nur Ardiyana Browse this author
Suzuki, Takaomi Browse this author
Demura, Taku Browse this author
Yin, Tongming Browse this author
Yu, Xiang Browse this author
Zhuge, Qiang Browse this author
Keywords: ABA signaling
physical interaction
Populus trichocarpa
yeast two-hybrid
Issue Date: 25-Dec-2015
Publisher: 日本植物細胞分子生物学会
Journal Title: Plant Biotechnology
Volume: 32
Issue: 4
Start Page: 337
End Page: 341
Publisher DOI: 10.5511/plantbiotechnology.15.0813b
Abstract: Type 2C protein phosphatase (PP2C) is a central player in abscisic acid (ABA) signaling transduction, which is required for plant growth, development and stress responses. In Arabidopsis, group A PP2Cs inhibit activity of the SNF1-related protein kinases 2 (SnRK2) family via physical interaction. To clarify whether this scheme is conserved in woody plants, we experimentally isolated the genes homologous to three members of group A PP2Cs (PtABI1, PtAHG1 and PtAHG3) and 12 SnRK2s (PtSnRK2.1–2.12) from a model tree Populus trichocarpa, and examined their interaction using a yeast two-hybrid assay. Our results showed that only three PtSnRK2 proteins had a positive interaction with PtPP2Cs: PtSnRK2.10 possessed strong interaction activity with all three PtPP2Cs, while significant, but relatively weak, interactions were observed with PtSnRK2.6 and PtSnRK2.9. These three PtSnRK proteins are grouped into subclass 2 or 3, which are considered to be ABA-dependent kinases in Arabidopsis. These findings suggest that physical interaction between SnRK2 and PP2C is also conserved in poplars and may be involved in the ABA signaling pathway in tree plants.
Rights: © 2015 The Japanese Society for Plant Cell and Molecular Biology
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 堀 千明

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