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DOI | 10.1038/ncomms15826 |
Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots | |
Waidmann, Sascha1; Rosquete, Michel Ruiz1; Schoeller, Maria1; Sarkel, Elizabeth1; Lindner, Heike2; LaRue, Therese2,3; Petrik, Ivan4,5; Duenser, Kai1; Martopawiro, Shanice6; Sasidharan, Rashmi6; Novak, Ondrej4,5; Wabnik, Krzysztof7; Dinneny, Jose R.2,3; Kleine-Vehn, Juergen1 | |
2019-08-06 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
国家 | Austria; USA; Czech Republic; Netherlands; Spain |
英文摘要 | Directional organ growth allows the plant root system to strategically cover its surroundings. Intercellular auxin transport is aligned with the gravity vector in the primary root tips, facilitating downward organ bending at the lower root flank. Here we show that cytokinin signaling functions as a lateral root specific anti-gravitropic component, promoting the radial distribution of the root system. We performed a genome-wide association study and reveal that signal peptide processing of Cytokinin Oxidase 2 (CKX2) affects its enzymatic activity and, thereby, determines the degradation of cytokinins in natural Arabidopsis thaliana accessions. Cytokinin signaling interferes with growth at the upper lateral root flank and thereby prevents downward bending. Our interdisciplinary approach proposes that two phytohormonal cues at opposite organ flanks counterbalance each other's negative impact on growth, suppressing organ growth towards gravity and allow for radial expansion of the root system. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000478867800002 |
WOS关键词 | SET-POINT ANGLE ; AUXIN EFFLUX ; CELL-PROLIFERATION ; LEAF SENESCENCE ; SHOOT GROWTH ; ARABIDOPSIS ; EXPRESSION ; TRANSCRIPTION ; IDENTIFICATION ; RECEPTOR |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203344 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Nat Resources & Life Sci, Dept Appl Genet & Cell Biol, Vienna BOKU, Muthgasse 18, A-1190 Vienna, Austria; 2.Stanford Univ, Dept Biol, 260 Panama St, Stanford, CA 94305 USA; 3.Carnegie Inst Sci, Dept Plant Biol, 260 Panama St, Stanford, CA 94305 USA; 4.Palacky Univ, Fac Sci, Ctr Reg Hama Biotechnol & Agr Res, Lab Growth Regulators, Olomouc 78371, Czech Republic; 5.Czech Acad Sci, Inst Expt Bot, Slechtitelu 27, Olomouc 78371, Czech Republic; 6.Univ Utrecht, Inst Environm Biol, Plant Ecophysiol, Padualaan 8, NL-3584 CH Utrecht, Netherlands; 7.Univ Politecn Madrid, Inst Nacl Invest & Tecnol Agr & Alimentaria, Ctr Biotecnol & Genom Plantas, Autopista M-40,Km 38 Pozuelo de Alarcon, Madrid 28223, Spain |
推荐引用方式 GB/T 7714 | Waidmann, Sascha,Rosquete, Michel Ruiz,Schoeller, Maria,et al. Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots[J]. NATURE COMMUNICATIONS,2019,10. |
APA | Waidmann, Sascha.,Rosquete, Michel Ruiz.,Schoeller, Maria.,Sarkel, Elizabeth.,Lindner, Heike.,...&Kleine-Vehn, Juergen.(2019).Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots.NATURE COMMUNICATIONS,10. |
MLA | Waidmann, Sascha,et al."Cytokinin functions as an asymmetric and anti-gravitropic signal in lateral roots".NATURE COMMUNICATIONS 10(2019). |
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