Differential freezing resistance and photoprotection in C-3 and C-4 eudicots and grasses
文献类型：期刊论文
| 作者 | Liu, Mei-Zhen; Osborne, Colin P. |
| 刊名 | JOURNAL OF EXPERIMENTAL BOTANY
 |
| 出版日期 | 2013 |
| 卷号 | 64期号:8页码:2183-2191 |
| 关键词 | C-3 photosynthesis C-4 photosynthesis Chenopodiaceae cold acclimation freezing tolerance photodamage Poaceae water relations |
| ISSN号 | 0022-0957 |
| DOI | 10.1093/jxb/ert075 |
| 文献子类 | Article |
| 英文摘要 | Globally, C-4 plants dominate hot, open environments, but this general pattern is underpinned by important differences in the biogeography of C-4 lineages. In particular, the species richness of C-4 Poaceae (grasses) increases strongly with increasing temperature, whereas that of the major C-4 eudicot group Chenopodiaceae correlates positively with aridity. Freezing tolerance is a crucial determinant of biogeographical relationships with temperature and is mediated by photodamage and cellular disruption by desiccation, but little is known about differences between C-4 families. This study hypothesized that there is a greater risk of freezing damage via these mechanisms in C-4 Poaceae than Chenopodiaceae, that freezing protection differs between the taxonomic groups, and that freezing tolerance of species is linked to arid habitat preference. Chlorophyll fluorescence, water relations, and freezing injury were compared in four C-3 and six C-4 species of Poaceae and Chenopodiaceae from the same Mongolian flora. Contrary to expectations, freezing-induced leaf mortality and photodamage were lower in Poaceae than Chenopodiaceae species, and unrelated to photosynthetic pathway. The freezing resistance of Poaceae species resulted from constitutive protection and cold acclimation and an ability to protect the photosynthetic apparatus from photodamage. Freezing protection was associated with low osmotic potential and low tissue elasticity, and freezing damage was accompanied by electrolyte leakage, consistent with cell-membrane disruption by ice. Both Chenopodiaceae and Poaceae had the potential to develop cold acclimation and withstand freezing during the growing season, which conflicted with the hypothesis. Instead, freezing tolerance was more closely associated with life history and ecological preference in these Mongolian species. |
| 学科主题 | Plant Sciences |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1460-2431 |
| WOS关键词 | WATER RELATIONS ; CHLOROPHYLL FLUORESCENCE ; COLD-ACCLIMATION ; XYLEM PRESSURE ; PHOTOSYNTHESIS ; TOLERANCE ; PLANTS ; CO2 |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000319433200006 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | Royal Society(Royal Society of London) ; National Scientific Foundation of China(National Natural Science Foundation of China (NSFC)) ; Innovative Project of Chinese Academy of Sciences(Knowledge Innovation Program of the Chinese Academy of Sciences) ; Strategic Priority Research Program-Climate Change: Carbon Budget and Relevant Issues of the Chinese Academy of Sciences(Chinese Academy of Sciences) ; Young Scientist Foundation from the State Key Laboratory of Vegetation and Environmental Change of Institute of Botany, the Chinese Academy of Sciences |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28096]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Osborne, Colin P.] Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.[Liu, Mei-Zhen |
| 推荐引用方式 GB/T 7714 | Liu, Mei-Zhen,Osborne, Colin P.. Differential freezing resistance and photoprotection in C-3 and C-4 eudicots and grasses[J]. JOURNAL OF EXPERIMENTAL BOTANY,2013,64(8):2183-2191. |
| APA | Liu, Mei-Zhen,&Osborne, Colin P..(2013).Differential freezing resistance and photoprotection in C-3 and C-4 eudicots and grasses.JOURNAL OF EXPERIMENTAL BOTANY,64(8),2183-2191. |
| MLA | Liu, Mei-Zhen,et al."Differential freezing resistance and photoprotection in C-3 and C-4 eudicots and grasses".JOURNAL OF EXPERIMENTAL BOTANY 64.8(2013):2183-2191. |
入库方式： OAI收割
来源：植物研究所
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