Aluminium alleviates manganese toxicity to rice by decreasing root symplastic Mn uptake and reducing availability to shoots of Mn stored in roots
文献类型：期刊论文
| 作者 | Wang, Wei1,2; Zhao, Xue Qiang1; Hu, Zhen Min1,2; Shao, Ji Feng1,2; Che, Jing1,2; Chen, Rong Fu1; Dong, Xiao Ying1; Shen, Ren Fang1 |
| 刊名 | ANNALS OF BOTANY
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 116期号:2页码:237-246 |
| 关键词 | Aluminium manganese toxicity rice Oryza sativa Gouy-Chapman-Stern model manganese plaques plasma membrane surface electrical potential root aerenchyma root symplast acid soils |
| ISSN号 | 0305-7364 |
| DOI | 10.1093/aob/mcv090 |
| 通讯作者 | Shen, Ren Fang(rfshen@issas.ac.cn) |
| 英文摘要 | Background and Aims Manganese (Mn) and aluminium (Al) phytotoxicities occur mainly in acid soils. In some plant species, Al alleviates Mn toxicity, but the mechanisms underlying this effect are obscure. Methods Rice (Oryza sativa) seedlings (11 d old) were grown in nutrient solution containing different concentrations of Mn2+ and Al3+ in short-term (24 h) and long-term (3 weeks) treatments. Measurements were taken of root symplastic sap, root Mn plaques, cell membrane electrical surface potential and Mn activity, root morphology and plant growth. Key Results In the 3-week treatment, addition of Al resulted in increased root and shoot dry weight for plants under toxic levels of Mn. This was associated with decreased Mn concentration in the shoots and increased Mn concentration in the roots. In the 24-h treatment, addition of Al resulted in decreased Mn accumulation in the root symplasts and in the shoots. This was attributed to higher cell membrane surface electrical potential and lower Mn2+ activity at the cell membrane surface. The increased Mn accumulation in roots from the 3-week treatment was attributed to the formation of Mn plaques, which were probably related to the Al-induced increase in root aerenchyma. Conclusions The results show that Al alleviated Mn toxicity in rice, and this could be attributed to decreased shoot Mn accumulation resulting from an Al-induced decrease in root symplastic Mn uptake. The decrease in root symplastic Mn uptake resulted from an Al-induced change in cell membrane potential. In addition, Al increased Mn plaques in the roots and changed the binding properties of the cell wall, resulting in accumulation of non-available Mn in roots. |
| 收录类别 | SCI |
| WOS关键词 | PLASMA-MEMBRANE SURFACE ; PLANT-CELL MEMBRANES ; ELECTRICAL POTENTIALS ; TRITICUM-AESTIVUM ; EXCESS MANGANESE ; SOLUTION CULTURE ; WALL PROPERTIES ; ION ACTIVITIES ; ORYZA-SATIVA ; ACCUMULATION |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000359069600007 |
| 出版者 | OXFORD UNIV PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558355 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Shen, Ren Fang |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Wei,Zhao, Xue Qiang,Hu, Zhen Min,et al. Aluminium alleviates manganese toxicity to rice by decreasing root symplastic Mn uptake and reducing availability to shoots of Mn stored in roots[J]. ANNALS OF BOTANY,2015,116(2):237-246. |
| APA | Wang, Wei.,Zhao, Xue Qiang.,Hu, Zhen Min.,Shao, Ji Feng.,Che, Jing.,...&Shen, Ren Fang.(2015).Aluminium alleviates manganese toxicity to rice by decreasing root symplastic Mn uptake and reducing availability to shoots of Mn stored in roots.ANNALS OF BOTANY,116(2),237-246. |
| MLA | Wang, Wei,et al."Aluminium alleviates manganese toxicity to rice by decreasing root symplastic Mn uptake and reducing availability to shoots of Mn stored in roots".ANNALS OF BOTANY 116.2(2015):237-246. |
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来源：南京土壤研究所
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