Lyso-phosphatidylcholine is a signal in the arbuscular mycorrhizal symbiosis

被引：123

作者：

Drissner, David

Kunze, Gernot

Callewaert, Nico

Gehrig, Peter

Tamasloukht, M'Barek

Boller, Thomas

Felix, Georg

Amrhein, Nikolaus

Bucher, Marcel

机构：

[1] ETH, Inst Plant Sci, Expt Stn, CH-8315 Lindau, Switzerland

[2] ETH, Zurich Glycom Initiat, CH-8093 Zurich, Switzerland

[3] Univ Ghent, Dept Mol Biomed Res, VIB, B-9000 Ghent, Belgium

[4] Univ Ghent, Dept Biochem Physiol & Microbiol, B-9000 Ghent, Belgium

[5] Univ Zurich, Funct Genom Ctr Zurich, CH-8057 Zurich, Switzerland

[6] ETH, CH-8057 Zurich, Switzerland

[7] Univ Basel, Inst Bot, CH-4056 Basel, Switzerland

[8] ETH, Inst Plant Sci, CH-8092 Zurich, Switzerland

[9] Univ Cologne, Inst Bot, D-50931 Cologne, Germany

来源：

SCIENCE | 2007年 / 318卷 / 5848期

关键词：

D O I：

10.1126/science.1146487

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The arbuscular mycorrhizal (AM) symbiosis represents the most widely distributed mutualistic root symbiosis. We report that root extracts of mycorrhizal plants contain a lipophilic signal capable of inducing the phosphate transporter genes StPT3 and StPT4 of potato (Solanum tuberosum L.), genes that are specifically induced in roots colonized by AM fungi. The same signal caused rapid extracellular alkalinization in suspension-cultured tomato (Solanum lycopersicum L.) cells and induction of the mycorrhiza-specific phosphate transporter gene LePT4 in these cells. The active principle was characterized as the lysolipid lyso-phosphatidylcholine (LPC) via a combination of gene expression studies, alkalinization assays in cell cultures, and chromatographic and mass spectrometric analyses. Our results highlight the importance of lysophospholipids as signals in plants and in particular in the AM symbiosis.

引用

页码：265 / 268

页数：4

共 21 条

[1] Wide proinflammatory effect of electronegative low-density lipoprotein on human endothelial cells assayed by a protein array [J].