Environmental control of seed dormancy and germination in the short-lived Olimarabidopsis pumila (Brassicaceae)
文献类型：期刊论文
| 作者 | Tang, A. J.1,2; Tian, M. H.3; Long, C. L.1,4 |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 73期号:3页码:385-388 |
| 关键词 | Ephemeral Gurbantonggut desert Photoblastism Seed dormancy Water stress |
| ISSN号 | 0140-1963 |
| 通讯作者 | long@mail.kib.ac.cn |
| 英文摘要 | The purpose of our Study was to better understand seed germination ecology of the spring annual short-lived Olimarabidopsis pumila, which grows in the Gurbantonggut Desert, China. Seeds underwent after-ripening at 4, 20 1 2 (room temperature) and 30 degrees C. After dormancy was broken, germination capacity was a function of temperature and presence of light. For the temperature range Studied (4-30 degrees C), germination capacity was significantly higher between 15 and 25 degrees C than at temperatures above or below them. Alternating temperatures of 20/10, 25/10 and 25/15 degrees C were favorable for germination. Although GA(3) did promote dark germination of seeds, GA(3) did not replace light for germination, Seeds germinated to >75% if light exposure time was over 8 h and temperature and moisture conditions were favorable. Seeds were able to germinate at relatively low water potentials (83% at -0.41 MPa), but decreasing water potentials produced detrimental effects on germination percentage and rate. Thus, dormancy characteristics and germination behavior of O. pumila seeds ensure that germination occurs in the desert only when soil moisture conditions are favorable for seedling establishment and survival. (C) 2008 Elsevier Ltd. All rights reserved. |
| 学科主题 | Ecology; Environmental Sciences |
| 类目[WOS] | Ecology ; Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | ARABIDOPSIS-THALIANA ; GIBBERELLIN ; TEMPERATURE ; SENSITIVITY ; PATTERNS ; ANNUALS ; NITRATE ; LIGHT |
| 收录类别 | SCI |
| 资助信息 | We must thank Prof C.C. Baskin and J.M. Baskin (University of Kentucky, Lexington, KY, USA) for their critical comments and editing the English. This study was funded by the Ministry of Science and Technology of China (2005DKA21006), and the Ministry of Education of China through its III Project (B08044, CUN 985-3-3). |
| 语种 | 英语 |
| WOS记录号 | WOS:000263791100020 |
| 公开日期 | 2012-07-18 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/14081]  |
| 专题 | 昆明植物研究所_资源植物与生物技术所级重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Kunming 650223, Peoples R China 4.Cent Univ Nationalities, Coll Life & Environm Sci, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, A. J.,Tian, M. H.,Long, C. L.. Environmental control of seed dormancy and germination in the short-lived Olimarabidopsis pumila (Brassicaceae)[J]. JOURNAL OF ARID ENVIRONMENTS,2009,73(3):385-388. |
| APA | Tang, A. J.,Tian, M. H.,&Long, C. L..(2009).Environmental control of seed dormancy and germination in the short-lived Olimarabidopsis pumila (Brassicaceae).JOURNAL OF ARID ENVIRONMENTS,73(3),385-388. |
| MLA | Tang, A. J.,et al."Environmental control of seed dormancy and germination in the short-lived Olimarabidopsis pumila (Brassicaceae)".JOURNAL OF ARID ENVIRONMENTS 73.3(2009):385-388. |
入库方式： OAI收割
来源：昆明植物研究所
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