Seed dormancy and germination of the medicinal holoparasitic plant Cistanche deserticola from the cold desert of northwest China
文献类型：期刊论文
| 作者 | Wang, Jia4; Baskin, Jerry M.; Baskin, Carol C.; Liu, Guofang; Yang, Xuejun; Huang, Zhenying
|
| 刊名 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
 |
| 出版日期 | 2017 |
| 卷号 | 115页码:279-285 |
| 关键词 | Cistanche deserticola Holoparasite Seed germination Specialized morphophysiological dormancy Undifferentiated embryo |
| ISSN号 | 0981-9428 |
| DOI | 10.1038/ncomms14008 |
| 文献子类 | Article |
| 英文摘要 | Cistanche deserticola is a holoparasitic plant with high medicinal value that reproduces only by seeds. However, the requirements for seed dormancy break and germination of this species remain unclear. The freshly matured dust-like seeds consist of a water-permeable seed coat and an undifferentiated oval shaped embryo embedded in endosperm. No fresh seeds germinated in water or a 10(-5) M fluridone solution at any incubation temperature within 60 days. Length of embryos in seeds incubated in warm and cold-started stratification sequences had increased 10.4 and 11.7% after 50 and 40 weeks, respectively. After 6 months, length of embryos in seeds stratified at 5 degrees C had increased by 12%. Germination of fresh seeds and of seeds stratified at 5 degrees C for 6 months and then incubated in mixed fiuridone/gibberellic acid 3 (GA(3)) solutions at 30/20 degrees C germinated to only 2.6 and 11.7%, respectively. Embryos of fresh seeds and of cold-stratified seeds had increased 29.4 and 15.8% in length, respectively, at the time of germination, but they never differentiated into organs. The highest germination (54.4%) was for seeds incubated in a 10(-5) M solution of fluridone in darkness in spring that had overwinter on the soil surface in the natural habitat. Our study indicates that breaking of physiological dormancy (PD) occurs first and then the embryo grows to a critical length (0.44 mm) without differentiation into organs prior to seed germination. Seeds for which PD had been broken were induced to germinate by fluridone and GA(3) at high temperature. Taken together, these results suggest that C. deserticola seeds have a specialized kind of morphophysiological dormancy. This study reveals possible ways to release seed dormancy that will be useful in propagating this medicinal species. (C) 2017 Elsevier Masson SAS. All rights reserved. |
| 学科主题 | Science & Technology - Other Topics |
| 出版地 | ISSY-LES-MOULINEAUX |
| 电子版国际标准刊号 | 1873-2690 |
| WOS关键词 | OROBANCHE ; INHIBITOR ; SOIL |
| 语种 | 英语 |
| WOS记录号 | WOS:000391932200001 |
| 出版者 | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| 资助机构 | Key Basic Research and Development Plan of P. R. China [2016YFC050080502] ; National Natural Science Foundation of P. R. ChinaNational Natural Science Foundation of China (NSFC) [31370705, 31570416] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22106]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Baskin, Jerry M.; Baskin, Carol C.] Univ Kentucky, Dept Biol, Lexington, KY 40506 USA 4.Baskin, Carol C.] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA |
| 推荐引用方式 GB/T 7714 | Wang, Jia,Baskin, Jerry M.,Baskin, Carol C.,et al. Seed dormancy and germination of the medicinal holoparasitic plant Cistanche deserticola from the cold desert of northwest China[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2017,115:279-285. |
| APA | Wang, Jia,Baskin, Jerry M.,Baskin, Carol C.,Liu, Guofang,Yang, Xuejun,&Huang, Zhenying.(2017).Seed dormancy and germination of the medicinal holoparasitic plant Cistanche deserticola from the cold desert of northwest China.PLANT PHYSIOLOGY AND BIOCHEMISTRY,115,279-285. |
| MLA | Wang, Jia,et al."Seed dormancy and germination of the medicinal holoparasitic plant Cistanche deserticola from the cold desert of northwest China".PLANT PHYSIOLOGY AND BIOCHEMISTRY 115(2017):279-285. |
入库方式： OAI收割
来源：植物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。