植物学报 ›› 2016, Vol. 51 ›› Issue (6): 827-840.DOI: 10.11983/CBB15212
何明洁1, 孙伊辰2, 程晓园2, 时冬雪2, 李迪秦1, 陈益银3, 冯永坤2, 刘璐2, 范腾飞2, 杨超3, 曹凤秋4,,A;*, 刘来华1,2,,A;*
收稿日期:
2015-12-03
接受日期:
2016-04-01
出版日期:
2016-11-01
发布日期:
2016-12-02
通讯作者:
曹凤秋,刘来华
作者简介:
# 共同第一作者
基金资助:
Mingjie He1,2†, Yichen Sun2†, Xiaoyuan Cheng2, Dongxue Shi2, Diqin Li1, Yiyin Chen3, Yongkun Feng2, Lu Liu2, Tengfei Fan2, Chao Yang3, Fengqiu Cao4*, Laihua Liu1,2*
Received:
2015-12-03
Accepted:
2016-04-01
Online:
2016-11-01
Published:
2016-12-02
Contact:
Cao Fengqiu,Liu Laihua
About author:
# Co-first authors
摘要: 离子型谷氨酸受体(iGLuR)是哺乳动物中一类由L-氨基酸(如谷氨酸、甘氨酸)等配体门控的阳离子通道, 具有调节兴奋性神经信号传递和引导神经元发育等分子功能。1998年研究者在拟南芥(Arabidopsis thaliana)中发现了20个与iGLuRs同源的序列(即AtGLRs), 它们的功能涉及植物光信号传递、根尖分生细胞活性、花粉管生长、胞质Ca2+流以及应答多种生物和非生物环境胁迫等。该文从谷氨酸受体(GLR)的结构特征、离子通道激活与配体的关系、表达模式及可能的生物学功能等方面, 综述了近十几年来关于植物GLR和氨基酸信号的研究成果, 旨在为相关领域的同行提供有益的参考。
何明洁, 孙伊辰, 程晓园, 时冬雪, 李迪秦, 陈益银, 冯永坤, 刘璐, 范腾飞, 杨超, 曹凤秋, 刘来华. 植物谷氨酸受体的研究进展. 植物学报, 2016, 51(6): 827-840.
Mingjie He, Yichen Sun, Xiaoyuan Cheng, Dongxue Shi, Diqin Li, Yiyin Chen, Yongkun Feng, Lu Liu, Tengfei Fan, Chao Yang, Fengqiu Cao, Laihua Liu. Current Research Advances on Glutamate Receptors (GLRs) in Plants. Chinese Bulletin of Botany, 2016, 51(6): 827-840.
图1 来自细菌、拟南芥和人类的谷氨酸受体同源蛋白的系统进化树氨基酸序列的对比分析采用Lasergene DNA*软件的Clustal W方法, 并使用PAUP* 4.10b软件分析生成进化树。At: Arabidopsis thaliana (拟南芥); Hs: Homo sapiens (人类); Ssp: Synechocystis sp. (单细胞蓝藻菌属, 菌株PCC6803)。AtGLR蛋白序列取自Tair, HsGLuR1-7及SspGLuR0取自NCBI数据库。基因库登录编号或基因模式所编码的可能性完整蛋白质序列名称如下: AtGLR1.1 (At3g04110)、AtGLR1.2 (At5g48400)、AtGLR1.3 (At5g48410)、AtGLR1.4 (At3g07520)、AtGLR2.1 (At5g27100)、AtGLR2.2 (At2g24720)、AtGLR2.3 (At2g24710)、AtGLR2.4 (At4g31710)、AtGLR2.5 (At5g11210)、AtGLR2.6 (At5g11180)、AtGLR2.7 (At2g29120)、AtGLR2.8 (At2g29110)、AtGLR2.9 (At2g29100)、AtGLR3.1 (At2g17260)、AtGLR3.2 (At4g35290)、AtGLR3.3 (At1g42540)、AtGLR3.4 (At1g05200)、AtGLR3.5 (At2g32390)、AtGLR3.6 (At3g51480)和AtGLR3.7 (At2g32400), HsGLuR1 (NP_000818.1)、HsGLuR2 (NP_786944.1)、HsGLuR3 (NP_015564.1)、HsGLuR4 (NP_000820.1)、HsGLuR5 (NP_000821.1)、 HsGLuR6 (CAC67487.1)和HsGLuR7 (NP_000822)以及SspGLuR0 (BAA17851.1)。
Figure 1 Phylogenetic tree of glutamate receptor homologs from Arabidopsis, human beings and bacteriumThe amino acid sequence alignment was performed using Clustal W (from Lasergene DNA*) and the phylogenetic tree was generated by parsimony analysis using PAUP* 4.10b software. At: Arabidopsis thaliana; Hs: Homo sapiens; Ssp, Synechocystis sp. (strain) PCC6803. AtGLR protein sequences were extracted from Tair, HsGLuR1-7 and SspGLuR protein sequences were obtained from NCBI database. GenBank accession number or gene models for obtaining putative full-length protein sequences are described as below: AtGLR1.1 (At3g04110), AtGLR1.2 (At5g48400), AtGLR1.3 (At5g48410), AtGLR1.4 (At3g07520), AtGLR2.1 (At5g27100), AtGLR2.2 (At2g24720), AtGLR2.3 (At2g24710), AtGLR2.4 (At4g31710), AtGLR2.5 (At5g11210), AtGLR2.6 (At5g11180), AtGLR2.7 (At2g29120), AtGLR2.8 (At2g29110), AtGLR2.9 (At2g29100), AtGLR3.1 (At2g17260), AtGLR3.2 (At4g35290), AtGLR3.3 (At1g42540), AtGLR3.4 (At1g05200), AtGLR3.5 (At2g32390), AtGLR3.6 (At3g51480), AtGLR3.7 (At2g32400); HsGLuR1 (NP_000818.1), HsGLuR2 (NP_786944.1), HsGLuR3 (NP_015564.1), HsGLuR4 (NP_000820.1), HsGLuR5 (NP_000821.1), HsGLuR6 (CAC67487.1), HsGLuR7 (NP_000822); SspGLuR0 (BAA17851.1).
图2 拟南芥谷氨酸受体的拓扑学结构(以GLR3.5为例)AtGLR3.5序列取自Aramemnon (http://aramemnon.uni-koeln.de/index.ep)。蛋白拓扑学结构(或疏水性)的预测使用http://www.cbs. dtu.dk/services/TMHMM/。AtGLR3.5包含3个跨膜域(M1、M3和M4)、1个嵌入脂质膜内的结构域M2及2个预测的位于胞质外侧的配体结合区S1和S2, 其碳端位于胞质内。图中的数字表示蛋白质肽链的氨基酸残基位置数。
Figure 2 Putative topology of a representative glutamate receptor (GLR3.5) from ArabidopsisThe protein sequence of AtGLR3.5 was extracted from Aramemnon (http://aramemnon.uni-koeln.de/index.ep). Topological (or hydrophobicity) prediction of protein was performed using a program from a web server http://www.cbs.dtu.dk/services/TMHMM/. AtGLR3.5 is predicted to exhibit 3 trans-membrane domains (M1, M3, and M4), 1 domain (M2) imbedded in a lipid-layer, 2 domains S1 and S2 locating outside cytoplasm for ligand binding, and a C-terminal region towards the cytosol. Numbers indicate positions of amino acid residues in a peptide sequence.
基因名称及 登录号 | 家族 | 苗龄 | 表达位点 | 参考文献 | ||
---|---|---|---|---|---|---|
器官水平 | 组织水平 | 亚细胞水平 | ||||
AtGLR1.1 At3g04110 | I | 1周 | 根、茎、叶 | 根部皮层, 托叶着生部 | NR | Chiu et al., 2002; Roy et al., 2008 |
4周 | 全展叶叶沿; 根系除根尖外各组织 | NR | ||||
8周 | 主要是根、叶; 花、角果中很微弱 | 花、角果中检测不到GUS信号 | NR | |||
AtGLR1.2 At5g48400 | 4周后 | 根、茎、叶、花、角果; 主要是根与角果 | 花粉管 | NR | ||
AtGLR1.3 At5g48410 | 4周 | 根、茎、叶, 叶中很微弱 | NR | NR | ||
8周 | 叶和花中微弱; 主要是根与角果 | NR | NR | |||
AtGLR1.4 At3g07520 | 4周后 | 根、茎、叶、花、角果 | NR | NR | ||
AtGLR2.1 At5g27100 | II | 1周后 | 根、茎、叶、叶柄 | 根系除根尖外各组织; 托叶着生部位 | NR | |
4周后 | 根 | 根系所有组织; 花药和胚珠检测到微弱且转瞬即逝的GUS信号 | NR | |||
AtGLR2.2 At2g24720 | 4周后 | 根 | NR | NR | ||
AtGLR2.3 At2g24710 | 4周后 | 根 | NR | NR | ||
AtGLR2.4 At4g31710 | 4周后 | 根、角果 | NR | NR | ||
AtGLR2.5 At5g11210 | 4周后 | 根、茎、叶、花、角果 | NR | NR | ||
AtGLR2.6 At5g11180 | 4周后 | 根 | NR | NR | ||
AtGLR2.7 At2g29120 | 4周后 | 叶、角果, 根中微弱 | NR | NR | ||
AtGLR2.8 At2g29110 | 4周后 | 根、叶柄、叶、角果 | NR | NR | Chiu et al., 2002 Roy et al., 2008 | |
AtGLR2.9 At2g29100 | 4周 | 根、叶、茎、叶柄 | NR | NR | ||
8周 | 根 | NR | NR | |||
AtGLR3.1 At2g17260 | III | 5天后 | 根、茎、叶、叶柄 | 所有维管组织; 保卫细胞 | NR | Cho et al., 2009 Kim et al., 2001; Kong et al., 2015; Meyerhoff et al., 2005 Turano et al., 2002 Teardo et al., 2011 Teardo et al., 2015 |
8周 | 根、茎、叶、花、角果 | 花丝和花药连接部位强烈表达 | NR | |||
AtGLR3.2 At4g35290 | 7天后 | 根、茎、叶柄、叶 | 所有维管组织及其邻近的导管, 随着植物生长表达更强烈; 根系韧皮部细胞中表达量远高于邻近细胞, 原生韧皮部更为强烈 | NR | ||
8周 | 根、茎、叶、花、角果, 主要是叶与角果 | 花、茎维管组织; 花芽; 胚珠, 尤其是外皮层和生长中心 | NR | |||
AtGLR3.3 At1g42540 | 4周后 | 根、茎、叶柄、叶、角果 | NR | |||
AtGLR3.4 At1g05200 | 4周后 | 根、茎、叶、花、角果, 莲座叶中最强 | 叶肉组织; 维管束; 保卫细胞, 排水孔; 根内外皮层, 根毛 | 细胞质膜, 叶绿体内膜 | ||
AtGLR3.5 At2g32390 | 0 | 种子发芽时强烈, 随发芽完成降低 | 胚胎与子叶中强烈表达 | 线粒体内膜; 叶绿体膜 | ||
4周后 | 根、茎、叶、花、角果 | NR | ||||
AtGLR3.7 At2g32400 | 整个生长阶段 | 所有器官 | 所有组织 | 细胞质膜 |
表1 拟南芥谷氨酸受体AtGLRs表达的时空特异性
Table 1 Overview of glutamate receptors-like receptors (AtGLRs) expression pattern in Arabidopsis thaliana
基因名称及 登录号 | 家族 | 苗龄 | 表达位点 | 参考文献 | ||
---|---|---|---|---|---|---|
器官水平 | 组织水平 | 亚细胞水平 | ||||
AtGLR1.1 At3g04110 | I | 1周 | 根、茎、叶 | 根部皮层, 托叶着生部 | NR | Chiu et al., 2002; Roy et al., 2008 |
4周 | 全展叶叶沿; 根系除根尖外各组织 | NR | ||||
8周 | 主要是根、叶; 花、角果中很微弱 | 花、角果中检测不到GUS信号 | NR | |||
AtGLR1.2 At5g48400 | 4周后 | 根、茎、叶、花、角果; 主要是根与角果 | 花粉管 | NR | ||
AtGLR1.3 At5g48410 | 4周 | 根、茎、叶, 叶中很微弱 | NR | NR | ||
8周 | 叶和花中微弱; 主要是根与角果 | NR | NR | |||
AtGLR1.4 At3g07520 | 4周后 | 根、茎、叶、花、角果 | NR | NR | ||
AtGLR2.1 At5g27100 | II | 1周后 | 根、茎、叶、叶柄 | 根系除根尖外各组织; 托叶着生部位 | NR | |
4周后 | 根 | 根系所有组织; 花药和胚珠检测到微弱且转瞬即逝的GUS信号 | NR | |||
AtGLR2.2 At2g24720 | 4周后 | 根 | NR | NR | ||
AtGLR2.3 At2g24710 | 4周后 | 根 | NR | NR | ||
AtGLR2.4 At4g31710 | 4周后 | 根、角果 | NR | NR | ||
AtGLR2.5 At5g11210 | 4周后 | 根、茎、叶、花、角果 | NR | NR | ||
AtGLR2.6 At5g11180 | 4周后 | 根 | NR | NR | ||
AtGLR2.7 At2g29120 | 4周后 | 叶、角果, 根中微弱 | NR | NR | ||
AtGLR2.8 At2g29110 | 4周后 | 根、叶柄、叶、角果 | NR | NR | Chiu et al., 2002 Roy et al., 2008 | |
AtGLR2.9 At2g29100 | 4周 | 根、叶、茎、叶柄 | NR | NR | ||
8周 | 根 | NR | NR | |||
AtGLR3.1 At2g17260 | III | 5天后 | 根、茎、叶、叶柄 | 所有维管组织; 保卫细胞 | NR | Cho et al., 2009 Kim et al., 2001; Kong et al., 2015; Meyerhoff et al., 2005 Turano et al., 2002 Teardo et al., 2011 Teardo et al., 2015 |
8周 | 根、茎、叶、花、角果 | 花丝和花药连接部位强烈表达 | NR | |||
AtGLR3.2 At4g35290 | 7天后 | 根、茎、叶柄、叶 | 所有维管组织及其邻近的导管, 随着植物生长表达更强烈; 根系韧皮部细胞中表达量远高于邻近细胞, 原生韧皮部更为强烈 | NR | ||
8周 | 根、茎、叶、花、角果, 主要是叶与角果 | 花、茎维管组织; 花芽; 胚珠, 尤其是外皮层和生长中心 | NR | |||
AtGLR3.3 At1g42540 | 4周后 | 根、茎、叶柄、叶、角果 | NR | |||
AtGLR3.4 At1g05200 | 4周后 | 根、茎、叶、花、角果, 莲座叶中最强 | 叶肉组织; 维管束; 保卫细胞, 排水孔; 根内外皮层, 根毛 | 细胞质膜, 叶绿体内膜 | ||
AtGLR3.5 At2g32390 | 0 | 种子发芽时强烈, 随发芽完成降低 | 胚胎与子叶中强烈表达 | 线粒体内膜; 叶绿体膜 | ||
4周后 | 根、茎、叶、花、角果 | NR | ||||
AtGLR3.7 At2g32400 | 整个生长阶段 | 所有器官 | 所有组织 | 细胞质膜 |
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