ZAI Xue-ming,SHAO Zhi-guang,QIN Pei.Effects of NaCl Sress on the Growth and Contents of Osmotic Adjustment Substance of Prunus maritima Seedling[J].Northern Horticulture,2012,36(19):12-14.
盐胁迫对滨梅幼苗生长和渗透调节物质含量的影响
- Title:
- Effects of NaCl Sress on the Growth and Contents of Osmotic Adjustment Substance of Prunus maritima Seedling
- 文章编号:
- 1001-0009(2012)19-0012-03
- Keywords:
- NaCl stress; Prunus maritima; growth; osmotic adjustment substance
- 分类号:
- S 688
- 文献标志码:
- A
- 摘要:
- 以滨梅幼苗为试材，研究了不同浓度盐（NaCl）胁迫下植株生长及渗透调节物质的响应。结果表明：0.5% NaCl能显著促进滨梅幼苗的生长及水分代谢，但相对膜透性与对照比无显著差异；1.0% NaCl与对照无显著差异，2.0% NaCl显著抑制滨梅幼苗生长及水分代谢，相对膜透性显著增加；随着NaCl浓度的增加，滨梅叶内的可溶性蛋白、可溶性糖含量及有机渗透调节物质总量显著增加，而脯氨酸含量的变化不明显。
- Abstract:
- Using Prunus maritima seedlings as material，the effects of different concentrations of NaCl stress on the plant growth and osmotic adjustment matter response were studied.The results showed that 0.5% NaCl significantly promoted the Prunus maritima seedling growth and water metabolism，1.0% NaCl and the control sample had no significant differences while 2.0% NaCl significantly inhibited the Prunus maritima seedling growth and water metabolism.After treatment with 0.5% and 1% NaCl，the relative membrane permeability of Prunus maritima leaf was no significant difference compared to control sample，while treatment of 2.0% NaCl，relative membrane permeability increased significantly.With the increase of NaCl concentration，the soluble protein，soluble sugar content and the total amount of organic osmotic adjustment substances of Prunus maritima leaf increased significantly，while proline content did not change significantly.The results indicated that Prunus maritima was a better salt tolerant species and could avoid salt harms by adjusting its organic osmotic adjustment system，and soluble protein and soluble sugar could be used as salt tolerance index of Prunus maritima.
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备注/Memo
第一作者简介：宰学明(1968-)，男，江苏仪征人，博士，副教授，现主要从事植物菌根生理生态学等研究工作。