Citrus Polymethoxylated Flavones Can Confer Resistance against Phytophthora citrophthora, Penicillium digitatum, and Geotrichum Species

The polymethoxylated flavones observed in the essential oils of the byproducts of various Citrus fruits after industrial processing were as follows:  sinensetin, nobiletin, and heptamethoxyflavone in clementine; sinensetin, quercetogetin, nobiletin, heptamethoxyflavone, and tangeretin in sour orange...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 1998-10, Vol.46 (10), p.4423-4428
Main Authors: Del Río, J. A, Arcas, M. C, Benavente-García, O, Ortuño, A
Format: Article
Language:English
Subjects:
ACEITES ESENCIALES
ANTIFUNGAL PROPERTIES
Biological and medical sciences
BYPRODUCTS
CITRUS AURANTIUM
CITRUS RETICULATA
CITRUS SINENSIS
ESPECTROMETRIA
ESSENTIAL OILS
EXTRACTOS VEGETALES
EXTRAIT D'ORIGINE VEGETALE
FLAVONOIDE
FLAVONOIDES
FLAVONOIDS
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
GEOTRICHUM
HEPTAMETHOXYFLAVONE
HUILE ESSENTIELLE
IDENTIFICACION
IDENTIFICATION
ISOLATION
NOBILETIN
Pathology, epidemiology, host-fungus relationships. Damages, economic importance
PENICILLIUM DIGITATUM
PEST RESISTANCE
Phytopathology. Animal pests. Plant and forest protection
PHYTOPHTHORA CITROPHTHORA
PLANT EXTRACTS
PROPIEDADES ANTIMICOSICAS
PROPRIETE ANTIFONGIQUE
QUERCETOGETIN
RESISTANCE AUX ORGANISMES NUISIBLES
RESISTENCIA A LAS PLAGAS
SINENSETIN
SOUR ORANGES
SOUS PRODUIT
SPECTRAL ANALYSIS
SPECTROMETRIE
SPECTROMETRY
SUBPRODUCTOS
TANGERETIN
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Summary:The polymethoxylated flavones observed in the essential oils of the byproducts of various Citrus fruits after industrial processing were as follows:  sinensetin, nobiletin, and heptamethoxyflavone in clementine; sinensetin, quercetogetin, nobiletin, heptamethoxyflavone, and tangeretin in sour orange and sweet orange. Penicillium digitatum was totally inhibited (100%) by application of the polymethoxylated flavones present in the extracts from the clementine and sweet orange oils and 77% inhibited by those extracted from the sour orange oil. Phytophthora citrophthora was 100% inhibited by sour orange oil, 72% by clementine oil, and only 14% by sweet orange oil. Geotrichum sp. was more sensitive to the sour orange extract, being inhibited by ∼57%, whereas clementine and sweet orange produced inhibition rates of 47 and 34%, respectively. Keywords: Clementine; heptamethoxyflavone; nobiletin; quercetogetin; sinensetin; sour orange; sweet orange; tangeretin
ISSN:0021-8561
1520-5118
DOI:10.1021/jf980229m