Separating multiple, short-term, deleterious effects of saline solutions on the growth of cowpea seedlings
文献类型：期刊论文
| 作者 | Kopittke, Peter M.1,2; Blamey, F. Pax C.1,2; Kinraide, Thomas B.3; Wang, Peng4,5; Reichman, Suzie M.6; Menzies, Neal W.1,2 |
| 刊名 | NEW PHYTOLOGIST
 |
| 出版日期 | 2011 |
| 卷号 | 189期号:4页码:1110-1121 |
| 关键词 | calcium deficiency osmotic effects plasma membrane activities root and shoot growth specific ion toxicity |
| ISSN号 | 0028-646X |
| DOI | 10.1111/j.1469-8137.2010.03551.x |
| 通讯作者 | Kopittke, Peter M.(p.kopittke@uq.edu.au) |
| 英文摘要 | Reductions in plant growth as a result of salinity are of global importance in natural and agricultural landscapes. Short-term (48-h) solution culture experiments studied 404 treatments with seedlings of cowpea (Vigna unguiculata cv Caloona) to examine the multiple deleterious effects of calcium (Ca), magnesium (Mg), sodium (Na) or potassium (K). Growth was poorly related to the ion activities in the bulk solution, but was closely related to the calculated activities at the outer surface of the plasma membrane, {I(z)}(0)(o). The addition of Mg, Na or K may induce Ca deficiency in roots by driving {Ca(2+)}(0)(o) to <1.6 mM. Shoots were more sensitive than roots to osmolarity. Specific ion toxicities reduced root elongation in the order Ca(2+) > Mg(2+) > Na(+) > K(+). The addition of K and, to a lesser extent, Ca alleviated the toxic effects of Na. Thus, Ca is essential but may also be intoxicating or ameliorative. The data demonstrate that the short-term growth of cowpea seedlings in saline solutions may be limited by Ca deficiency, osmotic effects and specific ion toxicities, and K and Ca alleviate Na toxicity. A multiple regression model related root growth to osmolarity and {I(z)}(0)(o) (R(2) = 0.924), allowing the quantification of their effects. |
| 收录类别 | SCI |
| WOS关键词 | SALT TOLERANCE ; PLANT-GROWTH ; CALCIUM ; CELL ; ROOT ; ION ; MECHANISMS ; PHYTOTOXICITY ; TOXICITIES ; MEMBRANES |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000286940500022 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558908 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Kopittke, Peter M. |
| 作者单位 | 1.Univ Queensland, Sch Land Crop & Food Sci, St Lucia, Qld 4072, Australia 2.Univ Queensland, Cooperat Res Ctr Contaminat Assessment & Remediat, St Lucia, Qld 4072, Australia 3.ARS, USA Dept Agr, Beaver, WV 25813 USA 4.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China 5.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 6.RMIT Univ, Sch Civil Environm & Chem Engn, Melbourne, Vic 3001, Australia |
| 推荐引用方式 GB/T 7714 | Kopittke, Peter M.,Blamey, F. Pax C.,Kinraide, Thomas B.,et al. Separating multiple, short-term, deleterious effects of saline solutions on the growth of cowpea seedlings[J]. NEW PHYTOLOGIST,2011,189(4):1110-1121. |
| APA | Kopittke, Peter M.,Blamey, F. Pax C.,Kinraide, Thomas B.,Wang, Peng,Reichman, Suzie M.,&Menzies, Neal W..(2011).Separating multiple, short-term, deleterious effects of saline solutions on the growth of cowpea seedlings.NEW PHYTOLOGIST,189(4),1110-1121. |
| MLA | Kopittke, Peter M.,et al."Separating multiple, short-term, deleterious effects of saline solutions on the growth of cowpea seedlings".NEW PHYTOLOGIST 189.4(2011):1110-1121. |
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来源：南京土壤研究所
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