WEN Saiqun,JIANG Tao,WEN Chunxiu,et al.Effects of External Methyl Jasmonate on Salt Tolerance of Andrographis paniculata[J].Northern Horticulture,2020,44(18):127-131.[doi:10.11937/bfyy.20194646]
外施茉莉酸甲酯对穿心莲耐盐性的影响
- Title:
- Effects of External Methyl Jasmonate on Salt Tolerance of Andrographis paniculata
- Keywords:
- Andrographis paniculata; salt stress; methyl jasmonate; plant morphology; physiological property
- 文献标志码:
- A
- 摘要:
- 以福建漳浦穿心莲植株为试材，采用盆栽试验法，以150 mmol?L-1 NaCl溶液为盐胁迫处理，叶面喷施2.5 mmol?L-1茉莉酸甲酯，研究外施茉莉酸甲酯对盐胁迫下穿心莲植株形态和生理特性的影响。结果表明：在盐胁迫环境中，穿心莲植株高度降低、叶长和叶宽生长受到抑制；穿心莲叶片的超氧化物歧化酶（SOD）、过氧化氢酶（CAT）活性及还原性抗坏血酸（ASA）、可溶性糖和脯氨酸含量增加，可溶性蛋白质含量降低。喷施茉莉酸甲酯后，盐胁迫对穿心莲叶片损伤显著减弱，同时外施茉莉酸甲酯可缓解穿心莲各生理指标对盐胁迫的响应，因此，外施茉莉酸甲酯在一定程度上可提高穿心莲的耐盐性。
- Abstract:
- In order to study the effects of external methyl jasmonate on the plant morphology and physiological characteristics of Andrographis paniculata under salt stress,the Andrographis paniculata from Zhangpu,Fujian Province was used as research material,which was treated with 150 mmol?L-1 NaCl for 10 days using the pot experiment,and the leaves were sprayed with 2.5 mmol?L-1 methyl jasmonate.The results showed that the height of Andrographis paniculate was decreased and the growth of leaf length and leaf width were inhibited under salt stress.The activities of SOD,CAT and the contents of ASA,soluble sugar and proline were increased,but the content of soluble protein was decreased.After spraying methyl jasmonate,the damage to the leaves of Andrographis paniculate was significantly reduced in salt stress environment,and external application of methyl jasmonate could alleviate the response of physiological indexes under salt stress.Therefore,external application of methyl jasmonate could improve the salt tolerance of Andrographis paniculate.
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备注/Memo
第一作者简介：温赛群（1996-），女，河北邯郸人，硕士，助理研究员，现主要从事药用植物种质创新与栽培生理等研究工作。E-mail：15931216693@163.com.责任作者：姜涛（1981-），男，黑龙江哈尔滨人，博士，副研究员，现主要从事药用植物分子育种等研究工作。E-mail：jttaojiang@163.com.基金项目：现代农业产业技术体系建设专项资金资助项目（CARS-21）。收稿日期：2019-12-10