Effects of NaCl Sress on the Growth and Contents of Osmotic Adjustment Substance of Prunus maritima Seedling(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2012年19期

Page:

12-14

Research Field:

Publishing date:

Info

Title:

Effects of NaCl Sress on the Growth and Contents of Osmotic Adjustment Substance of Prunus maritima Seedling

Author(s):

ZAI Xue-ming¹; 2; SHAO Zhi-guang³; QIN Pei²

1.Department of Horticulture，Jinling Institute of Technology，Nanjing,Jiangsu 210038；

2.Halophyte Research Lab,Nanjing University，Nanjing,Jiangsu 210093;

3.Zhenjiang College,Zhenjiang,Jiangsu 212000

Keywords:

NaCl stress; Prunus maritima; growth; osmotic adjustment substance

PACS:

S 688

DOI:

-

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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