New Pigments from the terrestrial cyanobacterium Scytonema sp. collected on the Mitaraka inselberg, French Guyana - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Natural Products Année : 2004

New Pigments from the terrestrial cyanobacterium Scytonema sp. collected on the Mitaraka inselberg, French Guyana

V. Bultel-Poncé
F. Felix-Theodose
  • Fonction : Auteur
J.F. Ponge

Résumé

Inselbergs are hills rising abruptly from the surrounding plains where cyanobacteria are the only living organisms under conditions of intense solar radiation. A survival mechanism to prevent UV-damage has been associated with synthesis of the ultraviolet-screening, photostable sheath pigment scytonemin. The organic extract of Scytonema sp., collected on the Mitaraka inselberg, French Guyana, yielded three new pigments, tetramethoxyscytonemin (1), dimethoxyscytonemin (2), and scytonine (3), derived from the scytoneman skeleton of scytonemin. These structures were assigned mainly on the basis of 1H and 13C NMR and MS experiments.

Dates et versions

hal-00015926 , version 1 (15-12-2005)

Identifiants

Citer

V. Bultel-Poncé, F. Felix-Theodose, C. Sarthou, J.F. Ponge, B. Bodo. New Pigments from the terrestrial cyanobacterium Scytonema sp. collected on the Mitaraka inselberg, French Guyana. Journal of Natural Products, 2004, 67 (4), pp.678-681. ⟨10.1021/np034031u⟩. ⟨hal-00015926⟩

Collections

MNHN CNRS
21 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More