Altered cell wall properties are responsible for ammonium-reduced aluminium accumulation in rice roots
文献类型：期刊论文
| 作者 | Wang, Wei1,2; Zhao, Xue Qiang1; Chen, Rong Fu1; Dong, Xiao Ying1; Lan, Ping1; Ma, Jian Feng1,3; Shen, Ren Fang1 |
| 刊名 | Plant cell and environment
 |
| 出版日期 | 2015-07-01 |
| 卷号 | 38期号:7页码:1382-1390 |
| 关键词 | Al-binding capacity Nitrate Ph |
| ISSN号 | 0140-7791 |
| DOI | 10.1111/pce.12490 |
| 通讯作者 | Shen, ren fang(rfshen@issas.ac.cn) |
| 英文摘要 | The phytotoxicity of aluminium (al) ions can be alleviated by ammonium (nh4+) in rice and this effect has been attributed to the decreased al accumulation in the roots. here, the effects of different nitrogen forms on cell wall properties were compared in two rice cultivars differing in al tolerance. an in vitroal-binding assay revealed that neither nh4+ nor no3- altered the al-binding capacity of cell walls, which were extracted from plants not previously exposed to n sources. however, cell walls extracted from nh4+-supplied roots displayed lower al-binding capacity than those from no3--supplied roots when grown in non-buffered solutions. fourier-transform infrared microspectroscopy analysis revealed that, compared with no3--supplied roots, nh4+-supplied roots possessed fewer al-binding groups (-oh and coo-) and lower contents of pectin and hemicellulose. however, when grown in ph-buffered solutions, these differences in the cell wall properties were not observed. further analysis showed that the al-binding capacity and properties of cell walls were also altered by phs alone. taken together, our results indicate that the nh4+-reduced al accumulation was attributed to the altered cell wall properties triggered by ph decrease due to nh4+ uptake rather than direct competition for the cell wall binding sites between al3+ and nh4+. ammonium (nh4+) is known to alleviate al toxicity by reducing al accumulation in rice roots, but the responsible mechanisms are poorly understood. in this study, we found that the nh4+-reduced accumulation of al was associated with decreased al-binding groups (-oh and coo-) and contents of pectin and hemicellulose in both al-tolerant and al-sensitive rice cultivars. furthermore, these alterations of cell wall properties were caused by ph decrease due to uptake of nh4+. |
| WOS关键词 | TRITICUM-AESTIVUM L ; PINUS-RIGIDA SEEDLINGS ; NITROGEN-SOURCE ; AL-TOXICITY ; NUTRIENT SOLUTIONS ; NITRATE NUTRITION ; ABC TRANSPORTER ; ACID SOILS ; L WHEAT ; FT-IR |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000355757200014 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2376640 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Shen, Ren Fang |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Okayama Univ, Inst Plant Sci & Resources, Kurashiki, Okayama 7100046, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Wei,Zhao, Xue Qiang,Chen, Rong Fu,et al. Altered cell wall properties are responsible for ammonium-reduced aluminium accumulation in rice roots[J]. Plant cell and environment,2015,38(7):1382-1390. |
| APA | Wang, Wei.,Zhao, Xue Qiang.,Chen, Rong Fu.,Dong, Xiao Ying.,Lan, Ping.,...&Shen, Ren Fang.(2015).Altered cell wall properties are responsible for ammonium-reduced aluminium accumulation in rice roots.Plant cell and environment,38(7),1382-1390. |
| MLA | Wang, Wei,et al."Altered cell wall properties are responsible for ammonium-reduced aluminium accumulation in rice roots".Plant cell and environment 38.7(2015):1382-1390. |
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来源：中国科学院大学
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