Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scent
The west Mediterranean Arum pictum L.f., endemic from Corsica, Sardinia and Balearic Islands, is the only autumn-flowering Arum species. This species is pollinated by deceptively attracting coprophilous and saprophilous Diptera and staphylinid Coleoptera. Four populations from Sardinia and Corsica w...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2023-09-01
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| Series: | Comptes Rendus. Chimie |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.236/ |
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| author | Gibernau, Marc Amadori, Arianna Godschalx, Adrienne Albre, Jérôme Tomi, Félix Marcia, Paolo Farris, Emmanuele |
| author_facet | Gibernau, Marc Amadori, Arianna Godschalx, Adrienne Albre, Jérôme Tomi, Félix Marcia, Paolo Farris, Emmanuele |
| author_sort | Gibernau, Marc |
| collection | DOAJ |
| description | The west Mediterranean Arum pictum L.f., endemic from Corsica, Sardinia and Balearic Islands, is the only autumn-flowering Arum species. This species is pollinated by deceptively attracting coprophilous and saprophilous Diptera and staphylinid Coleoptera. Four populations from Sardinia and Corsica were studied. The inflorescence produces heat during anthesis from the appendix and stamens; the appendix is able to increase its temperature twice within the same day, a trait unique in Arum. A. pictum floral scents likely mimic horse/donkey dung by releasing several dung-related volatile organic compounds (VOCs: $p$-cresol, skatole, or indole). Surprisingly, the main floral VOC was 2,6-dimethylocta-1,3,7-triene or isomyocorene. |
| format | Article |
| id | doaj-art-2c03d78743704e1d87f275af91830842 |
| institution | Kabale University |
| issn | 1878-1543 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Chimie |
| spelling | doaj-art-2c03d78743704e1d87f275af918308422025-02-07T13:38:15ZengAcadémie des sciencesComptes Rendus. Chimie1878-15432023-09-0126S212913810.5802/crchim.23610.5802/crchim.236Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scentGibernau, Marc0https://orcid.org/0000-0003-3866-3099Amadori, Arianna1https://orcid.org/0000-0001-5493-1335Godschalx, Adrienne2Albre, Jérôme3Tomi, Félix4https://orcid.org/0000-0003-4233-4845Marcia, Paolo5Farris, Emmanuele6https://orcid.org/0000-0002-9843-5998CNRS-University of Corsica Pascal Paoli, UMR 6134 SPE, Projet Phytochimie & Écologie chimique, Route des Sanguinaires - Vignola, 20000 Ajaccio, FranceDepartment of Chemical, Physical, Mathematical and Natural Sciences, University of Sassari, via Piandanna 4 – 07100 Sassari, ItalyCNRS-University of Corsica Pascal Paoli, UMR 6134 SPE, Projet Phytochimie & Écologie chimique, Route des Sanguinaires - Vignola, 20000 Ajaccio, France; Lower Columbia College, 1600 Maple St, Longview, WA 98632, USACNRS-University of Corsica Pascal Paoli, UMR 6134 SPE, Projet Phytochimie & Écologie chimique, Route des Sanguinaires - Vignola, 20000 Ajaccio, FranceCNRS-University of Corsica Pascal Paoli, UMR 6134 SPE, Projet Phytochimie & Écologie chimique, Route des Sanguinaires - Vignola, 20000 Ajaccio, FranceDepartment of Veterinary, University of Sassari, via Piandanna 4 – 07100 Sassari, ItalyDepartment of Chemical, Physical, Mathematical and Natural Sciences, University of Sassari, via Piandanna 4 – 07100 Sassari, Italy; NBFC, National Biodiversity Future Center, Palermo 90133, ItalyThe west Mediterranean Arum pictum L.f., endemic from Corsica, Sardinia and Balearic Islands, is the only autumn-flowering Arum species. This species is pollinated by deceptively attracting coprophilous and saprophilous Diptera and staphylinid Coleoptera. Four populations from Sardinia and Corsica were studied. The inflorescence produces heat during anthesis from the appendix and stamens; the appendix is able to increase its temperature twice within the same day, a trait unique in Arum. A. pictum floral scents likely mimic horse/donkey dung by releasing several dung-related volatile organic compounds (VOCs: $p$-cresol, skatole, or indole). Surprisingly, the main floral VOC was 2,6-dimethylocta-1,3,7-triene or isomyocorene.https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.236/AraceaeFloral thermogenesis$p$-cresolSkatoleIndole2,6-dimethylocta-1,3,7-triene |
| spellingShingle | Gibernau, Marc Amadori, Arianna Godschalx, Adrienne Albre, Jérôme Tomi, Félix Marcia, Paolo Farris, Emmanuele Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scent Comptes Rendus. Chimie Araceae Floral thermogenesis $p$-cresol Skatole Indole 2,6-dimethylocta-1,3,7-triene |
| title | Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scent |
| title_full | Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scent |
| title_fullStr | Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scent |
| title_full_unstemmed | Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scent |
| title_short | Mediterranean island endemic Arum pictum emits isomyocorene as a major component of floral scent |
| title_sort | mediterranean island endemic arum pictum emits isomyocorene as a major component of floral scent |
| topic | Araceae Floral thermogenesis $p$-cresol Skatole Indole 2,6-dimethylocta-1,3,7-triene |
| url | https://comptes-rendus.academie-sciences.fr/chimie/articles/10.5802/crchim.236/ |
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