湖北农业科学 ›› 2022, Vol. 61 ›› Issue (22): 34-36.doi: 10.14088/j.cnki.issn0439-8114.2022.22.006

• 资源·环境 • 上一篇    下一篇

盐胁迫对桐花树生长及生理的响应

冯立辉1, 徐扬帆1, 陈文峰1, 刘剑彤2, 吴辰熙2, 胡红娟2   

  1. 1.中交第二航务工程局有限公司,武汉 430040;
    2.中国科学院水生生物研究所,武汉 430072
  • 收稿日期:2021-11-30 出版日期:2022-11-25 发布日期:2023-01-11
  • 作者简介:冯立辉(1989-),男,河南滑县人,硕士,主要从事水体生态修复研究,(电话)13307169069(电子信箱)3172647758@qq.com。
  • 基金资助:
    中国科学院先导专项(XDA23040401); 中国交通建设集团有限公司水环境生态修复关键技术研究及应用推广项目(2019-ZJKJ-01)

Growth and physiological response of Aegiceras corniculata to salinity stress

FENG Li-hui1, XU Yang-fan1, CHEN Wen-feng1, LIU Jian-tong2, WU Chen-xi2, HU Hong-juan2   

  1. 1. CCCC Second Harbor Engineering Company Ltd.,Wuhan 430040,China;
    2. Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
  • Received:2021-11-30 Online:2022-11-25 Published:2023-01-11

摘要: 为探明桐花树在滨海区域的耐盐性,筛选出其最佳的耐盐浓度,设置不同盐度(0.5‰、1‰、1.5‰、3‰、6‰、9‰),对桐花树进行培养,测定不同盐度胁迫下桐花树的生理反应,分别测定形态学指标和生理学指标。结果表明,在培养期间,桐花树均显示出差异(P<0.05)。从植株高度、叶片长度形态指标和过氧化氢酶、丙二醛生理指标看,盐度越低,桐花树生长状况越好,受盐度的影响越小。因此,桐花树较适宜种植在滨海地区盐度较低的区域。

关键词: 桐花树, 盐, 生理胁迫, 滨海湿地, 植被恢复

Abstract: To investigate the salt tolerance of Aegiceras corniculata in the coastal area and to screen out their optimal salt tolerance concentration, different salinities (0.5‰, 1‰, 1.5‰, 3‰, 6‰, 9‰) were set and Aegiceras corniculata were cultured to determine the physiological responses of Aegiceras corniculata under different salinity stress, and the changes of morphological and physiological indices were measured respectively. The results showed that during the incubation period, all of the Aegiceras corniculata showed differences (P<0.05). From the morphological indicators of plant height, leaf length and physiological indicators of catalase and malondialdehyde, the lower the salinity, the better the growth condition of Tongfa tree and the lower it was affected by salinity. Therefore, Tongfa tree was more suitable to be planted in coastal areas with lower salinity.

Key words: Aegiceras corniculata, salt, physiological stress, coastal wetland, vegetation restoration

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