[1]宣亚楠,刘威,高彦博,等.外源Ca2+对盐胁迫下唐古特白刺气孔形态的影响[J].北方园艺,2015,39(06):62-67.[doi:10.11937/bfyy.201506018]
　XUAN Ya-nan,LIU Wei,GAO Yan-bo,et al.Effect of Exogenous Ca2+ on Stomatal Morphology of Nitratia tangutorum Under Salt Stress[J].Northern Horticulture,2015,39(06):62-67.[doi:10.11937/bfyy.201506018]
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外源Ca2+对盐胁迫下唐古特白刺气孔形态的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第39卷 期数: 2015年06 页码: 62-67 栏目: 出版日期: 2015-03-30
Title:
Effect of Exogenous Ca2+ on Stomatal Morphology of Nitratia tangutorum Under Salt Stress
作者:
宣亚楠; 刘威; 高彦博; 杜玉玲; 闫永庆
（东北农业大学 园艺学院，黑龙江 哈尔滨 150030）
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）
关键词:
盐胁迫; Ca2+; 白刺; 气孔
Keywords:
salt stress; Ca2+; Nitraria tangutorum; stomatal
DOI:
10.11937/bfyy.201506018
文献标志码:
A
摘要:
以盐生植物唐古特白刺为试材，研究了不同浓度外源Ca2+（0、5、10、15、20 mmol/L）对不同浓度NaCl（100、200、300、400 mmol/L）胁迫下唐古特白刺的气孔形态变化的影响。结果表明：唐古特白刺气孔长度和宽度随盐浓度的升高均降低，NaCl浓度为200 mmol/L处理下，气孔长度和宽度在Ca2+浓度为10 mmol/L时出现最大值，NaCl浓度≥300 mmol/L处理下，气孔长度和宽度在Ca2+浓度为15 mmol/L时出现最大值。唐古特白刺表皮气孔密度随NaCl浓度升高，逐渐降低；随外源Ca2+浓度升高，气孔密度先增加后降低，NaCl浓度≤300 mmol/L时，各盐处理在Ca2+浓度为5 mmol/L时气孔密度达到最大值，NaCl浓度为400 mmol/L时，虽然气孔密度增大，但是部分气孔发育不成熟，有些变形严重，不能行使其功能，说明唐古特白刺的最大耐盐浓度为300 mmol/L。
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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备注/Memo

第一作者简介：宣亚楠（1988-），女，硕士研究生，现主要从事园林植物逆境生理生态等研究工作。E-mail：xuanyanan2008@163.com. 责任作者：闫永庆（1966-），男，博士，教授，现主要从事园林植物逆境生理生态等研究工作。E-mail：yanyongqing1966@163.com. 基金项目：东北农业大学博士启动基金资助项目（2012RCB63）；黑龙江省教育厅科学技术研究资助项目（11551052）；黑龙江省自然科学基金面上资助项目（C2011427）。

更新日期/Last Update: 2015-06-25