盐胁迫对千层金生理指标及精油含量和成分的影响  

Effects of salt stress on physiological indexes,contents and compositions of essential oil in Melaleuca bracteata

作　　者：林永盛 桑洁丽 邱子文 尹冠文 林晓洁 吴少华[1,2] 李永裕[1,2] 杨超[1,2] LIN Yong-sheng;SANG Jie-li;QIU Zi-wen;YIN Guan-wen;LIN Xiao-jie;WU Shao-hua;LI Yong-yu;YANG Chao(College of Horticulture,Fujian Agriculture and Forestry University;Institute of Natural Products of Horticultural Plants,Fujian Agriculture and Forestry University,Fuzhou 350002,China)

机构地区：[1]福建农林大学园艺学院 [2]福建农林大学园艺学院植物天然产物研究所,福州350002

出　　处：《天然产物研究与开发》2022年第3期420-426,共7页Natural Product Research and Development

基　　金：国家自然科学基金青年项目(31902067,31501694);福建省科技计划(2018N0003)。

摘　　要：研究盐胁迫对千层金生理指标、精油含量以及成分的影响,以期为盐渍地种植千层金提供参考依据。以千层金扦插苗为试验材料,探究不同NaCl浓度(0、100、200、300、400、500 mmol/L)下千层金扦插苗光合作用、脯氨酸含量、丙二醛含量、POD酶活性、CAT酶活性以及精油含量和成分的影响。结果表明,盐胁迫环境下,千层金表现出较强的耐盐性以及抗氧化性。在100、200、300 mmol/L的NaCl处理下,其精油含量与对照组(0 mmol/L)相比分别增加22.34%、22.14%和57.83%。因此,适当的盐胁迫不会对千层金的生理指标产生影响,且能增加千层金叶片中的精油含量。This experiment studied effects of salt stress on physiological indexes,contents and compositions of essential oil in Melaleuca bracteata to provide reference for the planting of M.bracteata in saline land.The cutting seedlings of M.bracteata were used as experimental materials to study the effects of different NaCl concentrations(0,100,200,300,400,500 mmol/L)on photosynthesis,proline content,malondialdehyde content,peroxidase activity,catalase activity,essential oil content and components of M.bracteata cuttings.The results showed that M.bracteata showed strong salt tolerance and oxidation resistance under salt stress.At 100,200 and 300 mmol/L NaCl treatment,the essential oil content of M.bracteata increased by 22.34%,22.14%and 57.83%compared with the control group(0 mmol/L),respectively.Therefore,appropriate salt stress has no effect on physiological indexes of M.bracteata,in addition could increase the content of essential oil in the leaves of M.bracteata.

关 键 词：千层金 盐胁迫 精油 生理指标 

分 类 号：R284.2[医药卫生—中药学]