Signalling via glutamate and GLRs in Arabidopsis thaliana

被引:71
|
作者
Weiland, Matthias [1 ]
Mancuso, Stefano [1 ]
Baluska, Frantisek [2 ]
机构
[1] Univ Florence, Dept Plant Soil & Environm Sci, I-50019 Sesto Fiorentino, Italy
[2] Univ Bonn, Inst Cellular & Mol Bot IZMB, Dept Plant Cell Biol, D-53115 Bonn, Germany
关键词
amino acid; calcium; electrophysiology; GLR; ion channel; signaling; RECEPTOR-LIKE GENES; LIGAND-BINDING; PLASMA-MEMBRANE; ABSCISIC-ACID; PLANT; EXPRESSION; RESPONSES; CHANNELS; PROTEINS; HOMOLOG;
D O I
10.1071/FP15109
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The genome of Arabidopsis thaliana (L. Heynh.) contains 20 coding sequences for homologues of animal ionotropic glutamate receptors. These glutamate receptor-like receptors act as sensors and mediators of a multitude of exogenous as well as endogenous signals and are found in all analysed plant species. Their molecular structure clearly indicates a function as integral membrane proteins with a ligand-gated ion channel activity. Altered gene expressions and the occurrence of mRNA splice variants confer a high flexibility on the gene as well as on the RNA level. An individual glutamate receptor of A. thaliana is able to bind two different ligands (most probable amino acids and their derivatives), whereas a functional receptor complex is likely to consist of four single proteins. These features enable an immense number of sensitivities against various local and temporal stimuli. This review encompasses the last 15 years of research concerning glutamate signalling and glutamate receptors in plants. It is aimed at summarising their major characteristics and involvements to obtain a broader and farer reaching perspective of these fundamental components of plant signal transduction.
引用
收藏
页码:1 / 25
页数:25
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