Nom du corpus

Corpus Systématique Végétale

Titre du document

Plant photosensitizers: A survey of their occurrence in arid and semiarid plants from North America

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Photosensitizers
  • arid/semiarid plants
  • Asteraceae
  • Zygophyllaceae
  • Asclepiadaceae
  • Chenopodiaceae
  • Hydrophyllaceae
  • Lamiaceae
  • Polygonaceae
  • Solanaceae
Nom du fichier dans la ressource
Syst_veg6_v2_011197
Auteur(s)
  • Kelsey R. Downum 1
  • Sergio Villegas 1
  • Eloy Rodriguez 1
  • David J. Keil 2
Affiliation(s)
  • 1) Phytochemical Laboratory Department of Ecology and Evolutionary Biology, University of California, 92717, Irvine, California
  • 2) Biological Sciences Department, California Polytechnic State University, 93407, San Luis Obispo, California
Résumé

Various plants native to arid and semiarid habitats throughout the southwestern United States, Baja California, and northern Mexico were bioassayed for phototoxic natural products. Approximately 115 species representing 57 genera and eight plant families were assayed for phototoxic activity by standard antimicrobial techniques usingEscherichia coli andSaccharomyces cerevisiae. Phototoxic constituents were extracted from numerous members in the Asteraceae (Compositae) and occurred with highest frequency among species of the subtribe Pectidinae (tribe Heliantheae). Extracts ofPectis, the largest genus in the Pectidinae, had substantial light-activated biocidal action despite the paucity of acetylenic thiophenes, the phototoxins characteristic of most other genera in the subtribe. Leaf resin from the creosote bush [Larrea tridentata (Sesse & Mol. ex DC.) Coville; Zygophyllaceae], a dominant desert shrub, possessed potent antimicrobial activity in the absence of light; however, the toxicity of this extract was slightly enhanced in the presence of UVA irradiation. Phototoxic antimicrobials were not detected in extracts of selected species from the Asclepiadaceae, Chenopodiaceae, Hydrophyllaceae, Lamiaceae, Polygonaceae, or Solanaceae.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - entomology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
Catégories WoS
  • 1 - science ; 2 - ecology
  • 1 - science ; 2 - biochemistry & molecular biology
Identifiant ISTEX
5382420142129FEB949DBEFAC369580A48E1387B
Revue

Journal of Chemical Ecology

Année de publication
1989
Présence de XML structuré
Non
Score qualité du texte
7.217
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-08X4SQFX-K
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