SU Shaowen,LIU Ying,HUANG Zhiyuan,et al.Response of Different Lotus Flowers to Saline-Alkali Stress[J].Northern Horticulture,2020,44(23):52-59.[doi:10.11937/bfyy.20194346]
不同荷花对盐碱胁迫的响应
- Title:
- Response of Different Lotus Flowers to Saline-Alkali Stress
- 文献标志码:
- A
- 摘要:
- 以荷花品种‘彩云’‘瑰丽’‘天地红’为试验材料,采用盆栽浇灌的方法,研究了不同浓度盐碱(0、50、100、150、200 mmol·L-1)胁迫下对荷花生长生理影响,采用隶属函数法对荷花进行耐盐性评价,以期探究荷花响应盐碱复合胁迫的生理特性。结果表明:随着盐碱胁迫程度加大,不同品种荷花叶片过氧化物酶(POD)活性和可溶性蛋白质(SP)含量呈先升后降的趋势;脯氨酸(Pro)含量和丙二醛(MDA)含量增加;‘彩云’‘天地红’叶片超氧化物歧化酶(SOD)活性呈先升后降的趋势;‘彩云’‘天地红’叶绿素(Chl)含量持续下降,‘瑰丽’叶绿素含量呈先升后降趋势;通过隶属函数值综合分析,不同荷花品种耐盐碱性由强到弱依次为‘瑰丽’>‘天地红’>‘彩云’。
- Abstract:
- Taking lotus ‘Caiyun’‘Guili’‘Tiandihong’ as experimental materials,the physiological effects of different concentrations of saline-alkali (0 mmol·L-1,50 mmol·L-1,100 mmol·L-1,150 mmol·L-1,200 mmol·L-1) on the growth and physiological of lotus were studied.Function method was used to evaluate the salt tolerance of lotus,in order to explore the physiological characteristics of lotus in response to salt-alkali complex stress.The results showed that with the increasing of salt-alkali stress,the peroxidase (POD) activity and soluble protein (SP) content of different varieties of lotus leaves increased first and then decreased,proline (Pro) content and malondialdehyde (MDA) content increased,the superoxide dismutase (SOD) activity of the leaves of ‘Caiyun’ and ‘Tiandihong’ increased first and then decreased,the content of chlorophyll (Chl) of ‘Caiyun’ and ‘Tiandihong’ continued to decline,the chlorophyll content of ‘Guili’ increased first and then decreased.According to the comprehensive analysis of the membership function value,the salt-alkali tolerance of different lotus varieties from strong to weak was in the order of ‘Guili’>‘Tiandihong’>‘Caiyun’.
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备注/Memo
第一作者简介:苏少文(1997-),女,硕士研究生,研究方向为园林植物与观赏园艺。E-mail:15036141761@163.com.责任作者:刘艺平(1977-),女,博士,副教授,现主要从事园林植物栽培等研究工作。E-mail:kzxy303@163.com.基金项目:国家自然科学基金资助项目(31600568);河南省重大科技专项资助项目(30400098)。收稿日期:2019-11-22