Essential oils from Piper aduncum inflorescences and leaves: chemical composition and antifungal activity against Sclerotinia sclerotiorum

Abstract

Even though essential oils from Piper aduncum (Piperaceae) have different biological activities, little is known about their application to agricultural areas. White mold is a plant disease caused by the phytopathogen Sclerotinia sclerotiorum, which needs to be controlled by alternative measures. This study aimed at evaluating the effect of essential oils from P. aduncum leaves (PL-EO) and inflorescences (PI-EO) on the mycelial growth of S. sclerotiorum. Essential oils from P. aduncum were obtained by hydrodistillation by a Clevenger-type apparatus while their chemical composition was analyzed by GC-MS and GC-FID. Piperitone (23.4 %), myristicin (12.4 %), terpinen-4-ol (12.3 %), β-caryophyllene (7.2 %), α-humulene (6.9 %), germacrene-D (6.9 %) and dillapiol (6.3 %) were the main constituents found in oils from P. aduncum. The in vitro antifungal activity showed that PI-EO dose above 30 µL inhibited mycelial growth in 100 %, whereas PL-EO at 50 µL inhibited it in 98.74 %. This is the first report of the chemical composition of PI-EO and results suggest that the essential oils under evaluation have high potential to control the phytopathogenic fungus S. sclerotiorum.

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

“…It should be highlighted that all three EO from these three Citrus species, at the highest concentration under investigation, inhibited more than 50% of fungal growth. In addition, it is worth mentioning that EO from C. deliciosa fruit peel were the most active ones, a fact that may be explained by the high chemical variability of their compounds, which may act synergically and increase their biological activity (Sriwattanachai et al, 2018).…”

“…In order to keep carrying out studies of determination of chemical composition of EO and their activity against white mold (Valadares et al, 2018) and considering the interest of our research group in EO from Citrus species (Estevam et al, 2016;Lemes et al, 2018), the study reported by this paper addresses the chemical composition of EO extracted from Citrus reticulata, C. sinensis and C. deliciosa fruit peel ( Figure 1) and their in vitro inhibitory effect on mycelial growth of S. sclerotiorum.…”

Piper Species: A Comprehensive Review on Their Phytochemistry, Biological Activities and Applications

“…The EOs from aerial parts of Cuban plants were particularly rich in oxygenated compounds, both monoterpenoids (50.3%) and sesquiterpenoids (29.2%), with lower amounts of monoterpene hydrocarbons (9.7%) and sesquiterpene hydrocarbons (8.2%) [41] (see Table 3 and Table 4). The EO from inflorescences from Brazilian samples consisted mainly of oxygenated monoterpenoids (43.9%), followed by sesquiterpene hydrocarbons (30.5%) and phenylpropanoids (10.0%) [32,42] (See Table 5).…”

Gas chromatography coupled to mass spectrometry (GC-MS) characterization and evaluation of antibacterial bioactivities of the essential oils from Piper arboreum Aubl., Piper aduncum L. e Piper gaudichaudianum Kunth

“…The species Piper arboreum Aubl., popularly known as "pau-de-angola", "jaborandi", chilli pepper, has antifungal, trypanocidal, antibacterial, and antioxidant activities [7,8]. Piper aduncum L., popularly known as "jaborandi do mato", monkey pepper, "jaboti" [9] herb possesses antifungal [10], antiprotozoal [11], and insecticide activities [12]. Piper gaudichaudianum Kunth is popularly known as "pariparoba" or "jaborandi" [13], its leaves are used in folk medicine to relieve toothache.…”