Chemical composition and in vitro inhibitory efects of essential oils from fruit peel of three Citrus species and limonene on mycelia growth of Sclerotinia sclerotiorum

Chemical composition and in vitro inhibitory efects of essential oils from fruit peel of three Citrus species and limonene on mycelia growth of Sclerotinia sclerotiorum

Essential oils (EO) from aromatic and medicinal plants generally perform a diverse range of biological activities because they have several active constituents that work in different mechanisms of action. EO from Citrus peel have an impressive range of food and medicinal uses, besides other applicat...

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Bibliographic Details
Published in:Brazilian journal of biology Vol. 80; no. 2; pp. 460 - 464
Main Authors: Dias, A L B, Sousa, W C, Batista, H R F, Alves, C C F, Souchie, E L, Silva, F G, Pereira, P S, Sperandio, E M, Cazal, C M, im, M R, Miranda, M LD
Format: Journal Article
Language:English
Published: São Carlos Instituto Internacional de Ecologia 01-04-2020
Subjects:
Chemical composition
Citrus deliciosa
Citrus fruits
Citrus reticulata
Citrus sinensis
Constituents
Essential oils
Fruits
Fungi
Fungicides
Herbal medicine
Humidity
Limonene
Medicinal plants
Mold
Mycelia
Natural products
Oils & fats
Pesticides
Sclerotinia sclerotiorum
Temperature
Brazil
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Summary:Essential oils (EO) from aromatic and medicinal plants generally perform a diverse range of biological activities because they have several active constituents that work in different mechanisms of action. EO from Citrus peel have an impressive range of food and medicinal uses, besides other applications. EO from Citrus reticulata, C. sinensis and C. deliciosa were extracted from fruit peel and analyzed by GC-MS. The major constituent of EO under evaluation was limonene, whose concentrations were 98.54%, 91.65% and 91.27% for C. sinensis, C. reticulata and C. deliciosa, respectively. The highest potential of inhibition of mycelial growth was observed when the oil dose was 300 μL. Citrus oils inhibited fungus growth in 82.91% (C. deliciosa), 65.82% (C. sinensis) and 63.46% (C. reticulata). Anti-Sclerotinia sclerotiorum activity of 90% pure limonene and at different doses (20, 50, 100, 200 and 300 μL) was also investigated. This monoterpene showed to be highly active by inhibiting 100% fungus growth even at 200 and 300 μL doses. This is the first report of the in vitro inhibitory effect of natural products from these three Citrus species and its results show that there is good prospect of using them experimentally to control S. sclerotiorum, in both greenhouse and field conditions.
ISSN:1519-6984
1678-4375
DOI:10.1590/1519-6984.216848