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Wei Shiwei, Yang Xiao, Huo Guotao, Ge Guojun, Liu Hongyan, Luo Lijun, Hu Jinguo, Huang Danfeng, Long Ping. Distinct Metabolome Changes during Seed Germination of Lettuce (Lactuca sativa L.) in Response to Thermal Stress as Revealed by Untargeted Metabolomics Analysis.
来源：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
发布时间：2020-05-02
作者：杨晓
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| 作者: Wei, SW (Wei, Shiwei); Yang, X (Yang, Xiao); Huo, GT (Huo, Guotao); Ge, GJ (Ge, Guojun); Liu, HY (Liu, Hongyan); Luo, LJ (Luo, Lijun); Hu, JG (Hu, Jinguo); Huang, DF (Huang, Danfeng); Long, P (Long, Ping) | ||||||||||||||
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| 影响因子 (2018 年): 4.183 | ||||||||||||||
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| 摘要: Temperature strongly influences lettuce (Lactuca sativa L.) seed germination. Different lettuce genotypes respond differently to higher temperatures or thermal stress. In this study, we evaluated the germination performance of 304 lettuce accessions incubated at three temperature settings, 21 degrees C, 28 degrees C and 35 degrees C, respectively, for 40 h. At 21 degrees C, seeds of all 304 accessions germinated with very well an average germination percentage of 87.72%; at 28 degrees C, the average germination percentage dropped to 42.84% and at 35 degrees C, the germination decreased to 1.01%. Then, we investigated changes in metabolic profiles of lettuce seed response to thermal stress using an untargeted metabolomics approach. Results suggested that seeds of thermal-sensitive and thermal-tolerant cultivars employed different metabolic strategies in response to thermal stress during germination. Thermal-sensitive buds accumulated more significant amounts of organic acids, amino acids, sugars, sterols, phenolic compounds and terpenoids compared to thermal-tolerant buds at 21 degrees C. Thermal-tolerant lettuce cultivar accumulated higher concentrations of amino acids, organic acids, sugars, sesquiterpene lactones, sterols, and fatty acids derivatives during the germination at 35 degrees C compared to germinated at 21 degrees C. This investigation paves the way to link the metabolomics to other external and internal factors affecting lettuce seed germination under thermal stress. | ||||||||||||||
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| 语言: English | ||||||||||||||
| 文献类型: Article | ||||||||||||||
| 作者关键词: lettuce; germination; thermoinhibition; thermal stress; metabolomics | ||||||||||||||
| KeyWords Plus: ANTIOXIDANT ACTIVITY; GENETIC-VARIATION; ABSCISIC-ACID; PLANT-GROWTH; TEMPERATURE; THERMOINHIBITION; ETHYLENE; EXPRESSION; THERMOTOLERANCE; DOMESTICATION | ||||||||||||||
| 地址: [Wei, Shiwei; Huo, Guotao; Ge, Guojun; Liu, Hongyan; Luo, Lijun; Long, Ping] Shanghai Agrobiol Gene Ctr, Shanghai 201106, Peoples R China. [Yang, Xiao] Chinese Acad Agr Sci, Chengdu Natl Agr Sci & Technol Ctr, Inst Urban Agr, Chengdu 610213, Peoples R China. [Yang, Xiao; Huang, Danfeng] Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China. [Hu, Jinguo] Washington State Univ, USDA, Western Reg Plant Intro Stn, Pullman, WA 99164 USA. |
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| 通讯作者地址: Long, P (通讯作者)，Shanghai Agrobiol Gene Ctr, Shanghai 201106, Peoples R China. Huang, DF (通讯作者)，Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China. |
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| 电子邮件地址: wsw@sagc.org.cn; yangxiao@caas.cn; hgt@sagc.org.cn; ggj@sagc.org.cn; lhy@sagc.org.cn; lijun@sagc.org.cn; jinguo.hu@usda.gov; hdf@sjtu.edu.cn; lp@sagc.org.cn | ||||||||||||||
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| Web of Science 类别: Biochemistry & Molecular Biology; Chemistry, Multidisciplinary | ||||||||||||||
| 研究方向: Biochemistry & Molecular Biology; Chemistry | ||||||||||||||
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This research was funded by the Shanghai Science and Technology Support Project (Grant No. 19391900600), the Seed Industry Development Project of Shanghai, China (Grant No. 2016, 1-8), Sharing Platform for National Crop Germplasm Resources (Shanghai; Grant No. NICGR2019-21), the Shared Platform of Crop Germplasm Resources in Shanghai (Grant No. 18DZ2293700), the Central Public-Interest Scientific Institution Basal Research Fund (Grant No. Y2020XK01 and No. Y2018YJ25) and local financial funding from the National Agriculture Science and Technology Center, Chengdu (Grant No. NASC2019AR01). |
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