Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae)
The tree species P. indica (Lauraceae) is an important endemism in the Canary Islands laurel forest and can readily be distinguished by its defoliated appearance due to the seasonal action of wild rats (Rattus rattus), which eat the plant and become intoxicated. These observations and the phytochemi...
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ftcsic:oai:digital.csic.es:10261/21779 2024-02-11T10:08:12+01:00 Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae) González-Coloma, Azucena Hernández, Melchor G. Perales, Áurea Fraga, Braulio M. Ministerio de Educación y Ciencia (España) 1990 260209 bytes application/pdf http://hdl.handle.net/10261/21779 en eng Springer Journal of Chemical Ecology 16(9): pp. 2723-2733 (1990) 0098-0331 http://hdl.handle.net/10261/21779 open Persea indica Lauraceae Ryanodol Cinaceylanol X-ray analysis Rattus rattus Toxicity Mice feeding trials artículo http://purl.org/coar/resource_type/c_6501 1990 ftcsic 2024-01-16T09:25:46Z The tree species P. indica (Lauraceae) is an important endemism in the Canary Islands laurel forest and can readily be distinguished by its defoliated appearance due to the seasonal action of wild rats (Rattus rattus), which eat the plant and become intoxicated. These observations and the phytochemical interest of this plant species led us to study the potentially toxic chemicals responsible for such action. We found that an ethanolic extract of P. indica and its water fraction were toxic when injected into laboratory mice. The mice also died after ingestion of the stems and showed a significant preference for those extracted and rehydrated with an 8% aqueos extract solution when compared with the water control. Two compounds that have beer isolated from the toxic fraction and identified by sprectoscopic methods are the plyhydroxy pentacyclic diterpenes ryanodol and cinnceylanol. Possible ecological implications are discussed. We thank M. Fernández Galván (ICIA, Tenerife) for his advice on plant collection and classification. Stephen Carlin and Juan M. de León for their technical assistance, and the I.C.O.N.A. staff in Tenerife for their support and logistical assistance A.G.C. thanks to the Ministry of Education and Science (Madrid) for a research associate grant. Peer reviewed Article in Journal/Newspaper Rattus rattus Digital.CSIC (Spanish National Research Council) |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Persea indica Lauraceae Ryanodol Cinaceylanol X-ray analysis Rattus rattus Toxicity Mice feeding trials |
spellingShingle |
Persea indica Lauraceae Ryanodol Cinaceylanol X-ray analysis Rattus rattus Toxicity Mice feeding trials González-Coloma, Azucena Hernández, Melchor G. Perales, Áurea Fraga, Braulio M. Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae) |
topic_facet |
Persea indica Lauraceae Ryanodol Cinaceylanol X-ray analysis Rattus rattus Toxicity Mice feeding trials |
description |
The tree species P. indica (Lauraceae) is an important endemism in the Canary Islands laurel forest and can readily be distinguished by its defoliated appearance due to the seasonal action of wild rats (Rattus rattus), which eat the plant and become intoxicated. These observations and the phytochemical interest of this plant species led us to study the potentially toxic chemicals responsible for such action. We found that an ethanolic extract of P. indica and its water fraction were toxic when injected into laboratory mice. The mice also died after ingestion of the stems and showed a significant preference for those extracted and rehydrated with an 8% aqueos extract solution when compared with the water control. Two compounds that have beer isolated from the toxic fraction and identified by sprectoscopic methods are the plyhydroxy pentacyclic diterpenes ryanodol and cinnceylanol. Possible ecological implications are discussed. We thank M. Fernández Galván (ICIA, Tenerife) for his advice on plant collection and classification. Stephen Carlin and Juan M. de León for their technical assistance, and the I.C.O.N.A. staff in Tenerife for their support and logistical assistance A.G.C. thanks to the Ministry of Education and Science (Madrid) for a research associate grant. Peer reviewed |
author2 |
Ministerio de Educación y Ciencia (España) |
format |
Article in Journal/Newspaper |
author |
González-Coloma, Azucena Hernández, Melchor G. Perales, Áurea Fraga, Braulio M. |
author_facet |
González-Coloma, Azucena Hernández, Melchor G. Perales, Áurea Fraga, Braulio M. |
author_sort |
González-Coloma, Azucena |
title |
Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae) |
title_short |
Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae) |
title_full |
Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae) |
title_fullStr |
Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae) |
title_full_unstemmed |
Chemical ecology of canarian laurel forest: toxic diterpenes from Persea indica (Lauraceae) |
title_sort |
chemical ecology of canarian laurel forest: toxic diterpenes from persea indica (lauraceae) |
publisher |
Springer |
publishDate |
1990 |
url |
http://hdl.handle.net/10261/21779 |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_relation |
Journal of Chemical Ecology 16(9): pp. 2723-2733 (1990) 0098-0331 http://hdl.handle.net/10261/21779 |
op_rights |
open |
_version_ |
1790607219914440704 |