Testing for the presence of magnetite in the upper-beak skin of homing pigeons
文献类型：期刊论文
| 作者 | Tian, Lanxiang; Xiao, Bo; Lin, Wei; Zhang, Shuyi; Zhu, Rixiang; Pan, Yongxin |
| 刊名 | BIOMETALS
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 20期号:2页码:197-203 |
| 关键词 | homing pigeon Columbia livia magnetite SQUID magnetometer low-temperature magnetic property Prussian Blue reaction |
| ISSN号 | 0966-0844 |
| DOI | 10.1007/s10534-006-9027-x |
| 文献子类 | Article |
| 英文摘要 | We carried out magnetic and nonmagnetic experiments on fresh, upper-beak skin tissue samples isolated from six pairs of homing pigeons to test whether the tissue contains magnetite particles. Results of (1) room-temperature isothermal remanent magnetization (IRM) acquisition and alternating field (AF) demagnetization, (2) low-temperature demagnetization of saturation IRM acquired at 5 K in a field of 5 tesla (T) (SIRM5 K) after zero-field cooled (ZFC) and field cooled (FC) treatments, and (3) cycling of the saturation IRM acquired at 300 K in a field of 5 T (SIRM300 K) between 5 and 300 K, indicate the presence of magnetite in the measured samples. A significant loss of SIRM5 K below 20 K suggests the dominance of superparamagnetic (SPM) particles. The SIRM acquisition capacity of the female pigeon is stronger than that of the male pigeon in all four measured pairs, suggesting for the first time that the magnetite concentration is probably sex dependent. Light microscopic observation on the histological sections stained with Prussian Blue detected the presence of some tiny, dotted, dark-blue staining Fe3+ aggregates (size 1-4 mu m) located directly beneath the subcutis within strands of connective tissue, nearby the rim of the regions full of red nuclei. The results of this study support the idea that homing pigeons may have a magnetite-based receptor, which potentially could be used for sensing the Earth's magnetic field during navigation. |
| WOS关键词 | SUPERPARAMAGNETIC MAGNETITE ; MAGNETORECEPTOR ; FIELD ; ORIENTATION ; CLUSTERS |
| WOS研究方向 | Biochemistry & Molecular Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000245669300010 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68406]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Pan, Yongxin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Paleomagnetism & Geochronol Lab, SKL LE, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Zool, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Lanxiang,Xiao, Bo,Lin, Wei,et al. Testing for the presence of magnetite in the upper-beak skin of homing pigeons[J]. BIOMETALS,2007,20(2):197-203. |
| APA | Tian, Lanxiang,Xiao, Bo,Lin, Wei,Zhang, Shuyi,Zhu, Rixiang,&Pan, Yongxin.(2007).Testing for the presence of magnetite in the upper-beak skin of homing pigeons.BIOMETALS,20(2),197-203. |
| MLA | Tian, Lanxiang,et al."Testing for the presence of magnetite in the upper-beak skin of homing pigeons".BIOMETALS 20.2(2007):197-203. |
入库方式： OAI收割
来源：地质与地球物理研究所
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