Citrate exudation induced by aluminum is independent of plasma membrane H+-ATPase activity and coupled with potassium efflux from cluster roots of phosphorus-deficient white lupin
文献类型：期刊论文
| 作者 | Zeng, Houqing1; Feng, Xumeng; Wang, Baolan2; Zhu, Yiyong; Shen, Qirong; Xu, Guohua |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2013 |
| 卷号 | 366期号:1-2页码:389-400 |
| 关键词 | Al tolerance Citrate exudation Plasma membrane H+-ATPase K+ efflux Cluster root White lupin (Lupinus albus) |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-012-1445-7 |
| 文献子类 | Article |
| 英文摘要 | Exudation of organic acid anions is one of the mechanisms responsible for aluminum (Al) tolerance. The plasma membrane (PM) H+-ATPase is involved in the exudation of organic acid anions. However, the relationship between organic acid exudation and PM H+-ATPase under Al toxicity remains unclear. This study aims to investigate the correlation among Al-induced citrate exudation, PM H+-ATPase activity and counterions for citrate release from cluster roots of phosphorus-deficient (-P) white lupin. Al and various pharmacological agents were applied to incubate the cluster roots of P-deficient white lupin; the citrate exudation rate, PM H+-ATPase activity and ion exudation of cluster roots were examined. Citrate exudation from cluster roots of P-deficient white lupin was induced by 50 mu M Al treatment within 1.5 h, but no extra increase was found when the duration of Al treatment increased. The PM H+-ATPase activity of cluster roots was insensitive to Al treatment, irrespective of Al concentration and duration of Al treatment. Al treatment increased K+ efflux but not H+ efflux from cluster roots. After application of pharmacological agents to P-deficient cluster roots under Al treatment or not, vanadate decreased H+ efflux and increased K+ efflux, but had no inhibitory effect on citrate exudation; fusicoccin increased H+ efflux and citrate exudation, but decreased K+ efflux; tetraethylammonium (TEA) chloride, a K+-channel inhibitor, inhibited K+ efflux and increased H+ efflux. These results indicate that citrate exudation induced by combined treatment with P-deficiency and Al is independent of PM H+-ATPase activity, and is coupled with K+ efflux, which may compensate H+ efflux for keeping the charge balance for Al-induced citrate exudation from cluster roots of P-deficient white lupin. |
| 学科主题 | Agronomy ; Plant Sciences ; Soil Science |
| 出版地 | DORDRECHT |
| 电子版国际标准刊号 | 1573-5036 |
| WOS关键词 | VIGNA-UMBELLATA ; PROTEOID ROOTS ; ION-TRANSPORT ; CITRIC-ACID ; RICE ROOTS ; LOW PH ; RESISTANCE ; TOLERANCE ; AL ; SECRETION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000317988600028 |
| 出版者 | SPRINGER |
| 资助机构 | Program of New Century Excellent Talent in Universities ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28018]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Nanjing Agr Univ, Key Lab Plant Nutr & Fertilizat Low Middle Reache, Coll Resource & Environm Sci, Minist Agr, Nanjing 210095, Jiangsu, Peoples R China 2.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 310036, Zhejiang, Peoples R China 3.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Houqing,Feng, Xumeng,Wang, Baolan,et al. Citrate exudation induced by aluminum is independent of plasma membrane H+-ATPase activity and coupled with potassium efflux from cluster roots of phosphorus-deficient white lupin[J]. PLANT AND SOIL,2013,366(1-2):389-400. |
| APA | Zeng, Houqing,Feng, Xumeng,Wang, Baolan,Zhu, Yiyong,Shen, Qirong,&Xu, Guohua.(2013).Citrate exudation induced by aluminum is independent of plasma membrane H+-ATPase activity and coupled with potassium efflux from cluster roots of phosphorus-deficient white lupin.PLANT AND SOIL,366(1-2),389-400. |
| MLA | Zeng, Houqing,et al."Citrate exudation induced by aluminum is independent of plasma membrane H+-ATPase activity and coupled with potassium efflux from cluster roots of phosphorus-deficient white lupin".PLANT AND SOIL 366.1-2(2013):389-400. |
入库方式： OAI收割
来源：植物研究所
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