Characterization of Volatile Constituents of Haplopappus greenei and Studies on the Antifungal Activity against Phytopathogens

Essential oil of Haplopappus greenei A. Gray was obtained by hydrodistillation of aerial parts, which were subsequently analyzed by gas chromatography and gas chromatography−mass spectrometry. Major components were identified as carvacrol (8.7%), β-pinene (7.6%), trans-pinocarveol (6.2%), and caryop...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2006-04, Vol.54 (8), p.3146-3150
Main Authors: Demirci, Betul, Baser, Kemal Husnu Can, Tabanca, Nurhayat, Wedge, David E
Format: Article
Language:English
Subjects:
animal pathogenic fungi
antibacterial properties
antifungal properties
antimalarials
Aroma and flavouring agent industries
Biological and medical sciences
botanical pesticides
Bridged Bicyclo Compounds - analysis
Chromatography, Gas
Colletotrichum
Colletotrichum - drug effects
Colletotrichum acutatum
Colletotrichum gloeosporioides
essential oils
Food industries
Fragaria
Fruit and vegetable industries
Fundamental and applied biological sciences. Psychology
Fungicides, Industrial - pharmacology
gas chromatography
Gas Chromatography-Mass Spectrometry
Glomerella cingulata
Haplopappus
Haplopappus - chemistry
Haplopappus greenei
mass spectrometry
Monoterpenes - analysis
Monoterpenes - pharmacology
Oils, Volatile - chemistry
Oils, Volatile - pharmacology
plant pathogenic fungi
Plants - microbiology
Plasmodium falciparum
volatile organic compounds
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Summary:Essential oil of Haplopappus greenei A. Gray was obtained by hydrodistillation of aerial parts, which were subsequently analyzed by gas chromatography and gas chromatography−mass spectrometry. Major components were identified as carvacrol (8.7%), β-pinene (7.6%), trans-pinocarveol (6.2%), and caryophyllene oxide (5.8%), respectively. In total, 104 components representing 84.9% of the investigated essential oil were characterized. Furthermore, the essential oil was evaluated for antimalarial, antimicrobial, and antifungal activities. However, only antifungal activity was observed against the strawberry anthracnose-causing fungal plant pathogens Colletotrichum acutatum, Colletotrichum fragariae, and Colletotrichum gloeosporioides using the direct overlay bioautography assay. Major essential oil components were also evaluated for antifungal activity; the carvacrol standard demonstrated nonselective activity against the three Colletotrichum species and the other compounds were inactive. Keywords: Haplopappus greenei; Asteraceae; essential oil; GC-MS; carvacrol; β-pinene; strawberry pathogenic fungi; biological activity; antifungal activity
ISSN:0021-8561
1520-5118
DOI:10.1021/jf053222v