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Title: Strigolactone perception and deactivation by a hydrolase receptor DWARF14
Authors: Seto, Yoshiya
Yasui, Rei
Kameoka, Hiromu
Tamiru, Muluneh
Cao, Mengmeng
Terauchi, Ryohei
Sakurada, Akane
Hirano, Rena
Kisugi, Takaya
Hanada, Atsushi
Umehara, Mikihisa
Seo, Eunjoo
Akiyama, Kohki
Burke, Jason
Takeda-Kamiya, Noriko
Li, Weiqiang
Hirano, Yoshinori
Hakoshima, Toshio
Mashiguchi, Kiyoshi
Noel, Joseph P.
Kyozuka, Junko
Yamaguchi, Shinjiro
Author's alias: 瀬戸, 義哉
安井, 令
亀岡, 啓
寺内, 良平
櫻田, 茜
平野, 伶奈
来生, 貴也
花田, 篤志
梅原, 三貴久
秋山, 康紀
武田(神谷), 紀子
平野, 良憲
箱嶋, 敏雄
増口, 潔
経塚, 淳子
山口, 信次郎
Keywords: Plant signalling
Strigolactone
Issue Date: 14-Jan-2019
Publisher: Springer Nature
Journal title: Nature Communications
Volume: 10
Thesis number: 191
Abstract: The perception mechanism for the strigolactone (SL) class of plant hormones has been a subject of debate because their receptor, DWARF14 (D14), is an α/β-hydrolase that can cleave SLs. Here we show via time-course analyses of SL binding and hydrolysis by Arabidopsis thaliana D14, that the level of uncleaved SL strongly correlates with the induction of the active signaling state. In addition, we show that an AtD14D218A catalytic mutant that lacks enzymatic activity is still able to complement the atd14 mutant phenotype in an SL-dependent manner. We conclude that the intact SL molecules trigger the D14 active signaling state, and we also describe that D14 deactivates bioactive SLs by the hydrolytic degradation after signal transmission. Together, these results reveal that D14 is a dual-functional receptor, responsible for both the perception and deactivation of bioactive SLs.
Description: 植物の枝分かれ制御ホルモン「ストリゴラクトン」の受容メカニズムを解明 --受容体タンパクがストリゴラクトンの受容と不活性化を担うことを発見--. 京都大学プレスリリース. 2019-01-18.
Rights: © The Author(s) 2019. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
URI: http://hdl.handle.net/2433/236051
DOI(Published Version): 10.1038/s41467-018-08124-7
PubMed ID: 30643123
Related Link: http://www.kyoto-u.ac.jp/ja/research/research_results/2018/190114_1.html
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