Ethylene negatively regulates aluminium-induced malate efflux from wheat roots and tobacco cells transformed with TaALMT1
文献类型：期刊论文
| 作者 | Tian, Qiuying; Zhang, Xinxin; Ramesh, Sunita; Gilliham, Matthew; Tyerman, Stephen D.; Zhang, Wen-Hao
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| 刊名 | JOURNAL OF EXPERIMENTAL BOTANY
 |
| 出版日期 | 2014 |
| 卷号 | 65期号:9页码:2415-2426 |
| 关键词 | Ethylene aluminium tolerance malate efflux ALMT1 wheat (Triticum aestivum L.) |
| ISSN号 | 0022-0957 |
| DOI | 10.1093/jxb/eru123 |
| 文献子类 | Article |
| 英文摘要 | An important mechanism for Al3+ tolerance in wheat is exudation of malate anions from the root apex through activation of malate-permeable TaALMT1 channels. Here, the effect of ethylene on Al3+-activated efflux of malate was investigated using Al3+-tolerant wheat genotype ET8, which has high expression of TaALMT1. Exposure of ET8 plants to Al3+ enhanced ethylene evolution in root apices. Treatment with the ethylene synthesis precursor 1-aminocyclopropane-1-carboxylic acid (ACC) and ethylene gas suppressed Al3+-induced malate efflux from root apices, whereas the intracellular malate concentrations in roots were not affected. Malate efflux from root apices was enhanced in the presence of Al3+ by two antagonists of ethylene biosynthesis, aminoethoxyvinylglycine (AVG) and 2-aminoisobutyric acid (AIB). An increase in Al accumulation in root apices was observed when treated with ACC, whereas AVG and AIB suppressed Al accumulation in root apices. Al3+-induced inhibition of root elongation was ameliorated by pretreatment with AIB. In addition, ethylene donor (Ethrel) also inhibited Al3+-induced malate efflux from tobacco cells transformed with TaALMT1. ACC and the anion-channel blocker niflumate had a similar and non-additive effect on Al-induced malate efflux from root apices. Treatment of ET8 plants with ACC enhanced expression of TaALMT1, suggesting that the inhibitory effect of ethylene on Al-induced malate efflux is unlikely to occur at the transcriptional level. These findings indicate that ethylene may behave as a negative regulator of Al3+-induced malate efflux by targeting TaALMT1-mediated malate efflux by an unknown mechanism. |
| 学科主题 | Plant Sciences |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1460-2431 |
| WOS关键词 | TRITICUM-AESTIVUM L ; TRANSITION ZONE ; INDUCED INHIBITION ; GENE-EXPRESSION ; ANION CHANNEL ; APICAL CELLS ; DISTAL PART ; TOLERANCE ; TOXICITY ; RESISTANCE |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000337978800015 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Chinese Academy of Sciences [KSCX2-EW-Q-20] ; Australian Research Council ; National Science Foundation of China, State Key Laboratory of Vegetation and Environmental Change [31071844] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27134]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.[Tian, Qiuying 2.Zhang, Xinxin 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.[Ramesh, Sunita 5.Gilliham, Matthew 6.Tyerman, Stephen D.] Univ Adelaide, ARC Ctr Excellence Plant Energy Biol, Sch Agr Food & Wine, Waite Res Inst, Glen Osmond, SA 5064, Australia 7.Chinese Acad Sci, Beijing Inst Life Sci, Res Network Global Change Biol, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Qiuying,Zhang, Xinxin,Ramesh, Sunita,et al. Ethylene negatively regulates aluminium-induced malate efflux from wheat roots and tobacco cells transformed with TaALMT1[J]. JOURNAL OF EXPERIMENTAL BOTANY,2014,65(9):2415-2426. |
| APA | Tian, Qiuying,Zhang, Xinxin,Ramesh, Sunita,Gilliham, Matthew,Tyerman, Stephen D.,&Zhang, Wen-Hao.(2014).Ethylene negatively regulates aluminium-induced malate efflux from wheat roots and tobacco cells transformed with TaALMT1.JOURNAL OF EXPERIMENTAL BOTANY,65(9),2415-2426. |
| MLA | Tian, Qiuying,et al."Ethylene negatively regulates aluminium-induced malate efflux from wheat roots and tobacco cells transformed with TaALMT1".JOURNAL OF EXPERIMENTAL BOTANY 65.9(2014):2415-2426. |
入库方式： OAI收割
来源：植物研究所
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