|Table of Contents|

Effect of Exogenous Ca2+ on Stomatal Morphology of Nitratia tangutorum Under Salt Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年06
Page:
62-67
Research Field:
Publishing date:

Info

Title:
Effect of Exogenous Ca2+ on Stomatal Morphology of Nitratia tangutorum Under Salt Stress
Author(s):
XUAN Ya-nan; LIU Wei; GAO Yan-bo; DU Yu-ling; YAN Yong-qing
（College of Horticulture,Northeast Agricultural University，Harbin,Heilongjiang 150030）
Keywords:
salt stress; Ca2+; Nitraria tangutorum; stomatal
PACS:
-
DOI:
10.11937/bfyy.201506018
Abstract:
With Nitraria tangutorum as experimental material，effect of the different concentrations (0,5,10,15,20 mmol/L)of exogenous Ca2+ on stomatal morphology characteristics of Nitratia tangutorum under different concentrations (100,200,300，400 mmol/L)of salt stress were researched.The results showed that the Nitraria tangutorum stomatal length and width were both lower with the increase of NaCl concentration，there was a maximum of stomatal length and width under NaCl concentration for 200 mmol/L and Ca2+concentration of 10 mmol/L，when Ca2+ concentration was 15 mmol/L and salt stress (NaCl≥300 mmol/L)，there was a maximum of stomatal length and width.Along with the increase of NaCl concentration，stomatal density of Nitratia tangutorum epidermis decreased gradually，as the exogenous Ca2+ concentration increasing，stomatal density of Nitratia tangutorum hypodermis under different salt processing showed decreasing after increasing first，each treatment reached maximum with the Ca2+ concentration (5 mmol/L)and NaCl concentration (≤300 mmol/L）；stomatal density of Nitratia tangutorum increased under NaCl concentration(400 mmol/L)，but part of porosity development was not mature，some deformation was serious，unable to exercise its function，it indicated that Nitratia tangutorum suffered the maximum concentration (NaCl 300 mmol/L)to salt stress.

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Last Update: 2015-06-25