Peltate Glandular Trichomes of Colquhounia coccinea var. mollis Harbor a New Class of Defensive Sesterterpenoids
A new class of unique sesterterpenoids, colquhounoids A–C (1–3), were identified from the peltate glandular trichomes of Colquhounia coccinea var. mollis (Lamiaceae) through precise laser-microdissection coupled with UPLC/MS/MS and spectroscopic analyses and X-ray diffraction. Very interestingly, th...
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Veröffentlicht in: | Organic letters 2013-04, Vol.15 (7), p.1694-1697 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A new class of unique sesterterpenoids, colquhounoids A–C (1–3), were identified from the peltate glandular trichomes of Colquhounia coccinea var. mollis (Lamiaceae) through precise laser-microdissection coupled with UPLC/MS/MS and spectroscopic analyses and X-ray diffraction. Very interestingly, their structural features and defensive function are closely related to leucosceptroid-class sesterterpenoids harbored by the glandular trichomes of another Lamiaceae taxon, Leucosceptrum canum, even though this is morphologically distinct and taxonomically distant. |
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ISSN: | 1523-7060 1523-7052 |
DOI: | 10.1021/ol4004756 |