Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.sajb.2015.01.019 |
The occurrence of triterpenoids from Euphorbia gummifera inside the fairy circles of Garub in the southern Namibian pro-desert | |
Meyer, J. J. M.1; Senejoux, F.1; Heyman, H. M.1; Meyer, N. L.1,2; Meyer, M. A.1 | |
通讯作者 | Meyer, J. J. M. |
来源期刊 | SOUTH AFRICAN JOURNAL OF BOTANY |
ISSN | 0254-6299 |
EISSN | 1727-9321 |
出版年 | 2015 |
卷号 | 98页码:10-15 |
英文摘要 | The cause and maintenance of the fairy circle phenomenon of the Namibian pro-desert have not yet been satisfactorily explained. Several diverse hypotheses have been put forward, but none have universally been accepted. In the current study a possible link between the barren patches (fairy circles) of the Garub region (southern Namibian pro-desert) and Euphorbia gummifera was investigated, by determining if a characteristic compound(s) from this poisonous plant is present inside the fairy circles. With the use of GCMS trace analysis it was possible to identify euphol, a characteristic triterpenoid of the Euphorbia genus, in substantial quantities in 19 out of 20 soil samples from inside fairy circles in the Garub region. Only trace amounts of euphol could be found in 3 of 20 samples from outside the fairy circles. This implies that E. gummifera was present where there are now fairy circles. A comparison of the size of the fairy circles and E. gummifera found within the same area (Garub) additionally linked the barren patches to E. gummifera. The circles in this area have an average diameter of 353 m and the plants 3.44 m. This study partially supports the first published hypothesis by Theron in 1979, that the fairy circles are caused by Euphorbia spp. or their remains. (C) 2015 SAAB. Published by Elsevier B.V. All rights reserved. |
英文关键词 | Fairy circles Euphorbia Namibia Euphol |
类型 | Article |
语种 | 英语 |
国家 | South Africa |
收录类别 | SCI-E |
WOS记录号 | WOS:000353612300003 |
WOS关键词 | ANTIMICROBIAL ACTIVITY ; KANSUI |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/190517 |
作者单位 | 1.Univ Pretoria, Dept Plant Sci, ZA-0002 Pretoria, South Africa; 2.South African Natl Biodivers Inst, ZA-0001 Pretoria, South Africa |
推荐引用方式 GB/T 7714 | Meyer, J. J. M.,Senejoux, F.,Heyman, H. M.,et al. The occurrence of triterpenoids from Euphorbia gummifera inside the fairy circles of Garub in the southern Namibian pro-desert[J],2015,98:10-15. |
APA | Meyer, J. J. M.,Senejoux, F.,Heyman, H. M.,Meyer, N. L.,&Meyer, M. A..(2015).The occurrence of triterpenoids from Euphorbia gummifera inside the fairy circles of Garub in the southern Namibian pro-desert.SOUTH AFRICAN JOURNAL OF BOTANY,98,10-15. |
MLA | Meyer, J. J. M.,et al."The occurrence of triterpenoids from Euphorbia gummifera inside the fairy circles of Garub in the southern Namibian pro-desert".SOUTH AFRICAN JOURNAL OF BOTANY 98(2015):10-15. |
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