Antioxidant Metabolism, Photosystem II, and Fatty Acid Composition of Two Tall Fescue Genotypes With Different Heat Tolerance Under High Temperature Stress
文献类型：期刊论文
| 作者 | Hu, Zhengrong1,2; Fu, Jinmin1,3; Li, Huiying1; Hu, Lianlian1,2; Bi, Aoyue1,2; Amombo, Erick1,2 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2018-08-22 |
| 卷号 | 9页码:13 |
| 关键词 | tall fescue heat stress antioxidant metabolism photosystem II fatty acid composition gene expression |
| ISSN号 | 1664-462X |
| DOI | 10.3389/fpls.2018.01242 |
| 英文摘要 | Tall fescue (Festuca arundinacea Schreb.) is a typical and widely used cool-season turf grass. High temperature is a key factor that limits its utility. The objectives of this study were to investigate the behaviors of fatty acid composition and its gene expression patterns in heat-resistant genotype "TF71" and heat-sensitive genotype "TF133" exposed to heat stress (40/35 degrees C, 14/10 h), and to broaden our comprehension about the relationship between heat tolerance and fatty acid function. The result showed that heat stress increased the malondialdehyde (MDA) content and relative electrolyte leakage (EL), but decreased the level of chlorophyll and the activity of superoxide dismutase (SOD) and peroxidase (POD) when compared to the controls, to a greater extent in "TF133." This result proved that "TF71" had superior high-temperature resistance. Furthermore, comparing the changes in the composition of fatty acid and the expression of the genes involved in its synthesis between the two different genotypes under heat stress, we found that heat stress increased the degree of unsaturation, UFA/SFA, and double bond index (DBI) in "TF71." Moreover, quantitative RT-PCR revealed that heat stress altered the expression of the genes involved in fatty acid synthesis, including ACAC, FabD, FabF, FabH, FabI, and FatA. According to these findings, we can speculate that increasing the unsaturation degree of fatty acid or controlling the equilibrium ratio of UFA/SFA might be closely associated with the improving of the heat resistance in tall fescue. |
| 资助项目 | National Natural Science Foundation of China[31201653] ; National Natural Science Foundation of China[31470363] ; National Natural Science Foundation of China[31401915] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000442354700001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/5631]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Fu, Jinmin; Li, Huiying |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Ludong Univ, Inst Adv Study Coastal Ecol, Yantai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Zhengrong,Fu, Jinmin,Li, Huiying,et al. Antioxidant Metabolism, Photosystem II, and Fatty Acid Composition of Two Tall Fescue Genotypes With Different Heat Tolerance Under High Temperature Stress[J]. FRONTIERS IN PLANT SCIENCE,2018,9:13. |
| APA | Hu, Zhengrong,Fu, Jinmin,Li, Huiying,Hu, Lianlian,Bi, Aoyue,&Amombo, Erick.(2018).Antioxidant Metabolism, Photosystem II, and Fatty Acid Composition of Two Tall Fescue Genotypes With Different Heat Tolerance Under High Temperature Stress.FRONTIERS IN PLANT SCIENCE,9,13. |
| MLA | Hu, Zhengrong,et al."Antioxidant Metabolism, Photosystem II, and Fatty Acid Composition of Two Tall Fescue Genotypes With Different Heat Tolerance Under High Temperature Stress".FRONTIERS IN PLANT SCIENCE 9(2018):13. |
入库方式： OAI收割
来源：武汉植物园
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