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Comparative photosynthetic and metabolic analyses reveal mechanism of improved cold stress tolerance in bermudagrass by exogenous melatonin
文献类型：期刊论文
| 作者 | Hu, Zhengrong1,2; Fan, Jibiao1,2; Xie, Yan1; Amombo, Erick1,2; Liu, Ao1,2; Gitau, Margaret Mukami1,2; Khaldun, A. B. M.3; Chen, Liang1; Fu, Jinmin1 |
| 刊名 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 100页码:94-104 |
| 关键词 | Melatonin Genotype Bermudagrass Cold stress Photosystem II Metabolism |
| ISSN号 | 0981-9428 |
| DOI | 10.1016/j.plaphy.2016.01.008 |
| 英文摘要 | Melatonin (N-acetyl-5-methoxytryptamine) has been reported to participate in plant development and abiotic stress responses. The main objective of this study was to investigate the role of melatonin in the cold-sensitive (S) and the cold-tolerant (T) bermudagrass genotypes' response to cold stress. The genotypes were treated with 100 mu M melatonin and exposed to 4 degrees C temperature for 3 days. In both genotypes, cold stress increased the endogenous melatonin levels, and more prominently in T than S. Physiological responses indicated that exogenous melatonin triggered antioxidant activities in both genotypes, while it alleviated cell damage in the T genotype response to cold stress. Melatonin treatment under cold stress increased fluorescence curve levels for both genotypes, and higher in T than S genotypes. In both genotypes, the alterations in photosynthetic fluorescence parameters after melatonin treatment highlighted the participation of melatonin in improving photosystem response to cold stress, particularly for the cold-tolerant genotype. The metabolic analyses revealed the alterations of 44 cold responsive metabolites in the two genotypes, mainly including carbohydrates, organic acids and amino acids. After exogenous melatonin treatment under cold condition, there was high accumulation of metabolites in the cold-tolerant regimes than their cold-sensitive counterparts. Collectively, the present study revealed differential modulations of melatonin between the cold-sensitive and the cold-tolerant genotypes in response to cold stress. This was mainly by impacting antioxidant system, photosystem II, as well as metabolic homeostasis. (C) 2016 Elsevier Masson SAS. All rights reserved. |
| 资助项目 | China National Science Foundation (NSFC)[31272194] ; China National Science Foundation (NSFC)[31401915] ; China-Africa Center for Research and Education[SAJC201325] ; Hubei Province National Science Foundation Sciences[ZRY1326] ; CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture[Y452341X01] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000371553500011 |
| 出版者 | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/113]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Chen, Liang; Fu, Jinmin |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan 430074, Hubei, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 3.Plant Breeding Div Bangladesh Agr Res Inst BARI J, Gazipur 1701, Bangladesh |
| 推荐引用方式 GB/T 7714 | Hu, Zhengrong,Fan, Jibiao,Xie, Yan,et al. Comparative photosynthetic and metabolic analyses reveal mechanism of improved cold stress tolerance in bermudagrass by exogenous melatonin[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2016,100:94-104. |
| APA | Hu, Zhengrong.,Fan, Jibiao.,Xie, Yan.,Amombo, Erick.,Liu, Ao.,...&Fu, Jinmin.(2016).Comparative photosynthetic and metabolic analyses reveal mechanism of improved cold stress tolerance in bermudagrass by exogenous melatonin.PLANT PHYSIOLOGY AND BIOCHEMISTRY,100,94-104. |
| MLA | Hu, Zhengrong,et al."Comparative photosynthetic and metabolic analyses reveal mechanism of improved cold stress tolerance in bermudagrass by exogenous melatonin".PLANT PHYSIOLOGY AND BIOCHEMISTRY 100(2016):94-104. |
入库方式： OAI收割
来源：武汉植物园
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