Composition and antifungal activity of essential oils of Mentha piperita and Lavendula angustifolia on post-harvest phytopathogens
The general antifungal activity of essential oils is well documented. The advantage of essential oils is their bioactivity in the vapor phase, a characteristic that makes them attractive as possible fumigants for stored product protection. Essential oils of aerial parts of Mentha piperita and Lavendula angustifolia were obtained with hydrodistillation and oils composition identified with GC-MS. Menthanol (36.24%) and menthone (32.42%) were the major compounds of the M. piperata essential oil. The essential oil of L. angustifolia was rich in linalool (49.2%) , linalyl acetate (12.3%), Lavendul acetate (6.5%), 4-terpineol (5.9%). Fungal toxicity of the essential oils were evaluated against three pathogenic fungi (Rhizopus stolonifer, Botrytis cinerea and Aspergillus niger) in vitro. Plate assayes showed that the different concentrations of essential oils have antifungal activity against these fungi, and the essential oil of L. angustifolia showed stronger fungistatic activity. Lavendula oil exhibited complete growth inhibition of all pathogens at 1000 ppm and minimum EC50 (311.24 ppm) resulted on B. cinerea.
Available from: Birendra Kumar
- "Because of their cooling, pleasant aroma and flavor, essential oils of mint are used in perfumery, cosmetics, confectionery, and the pharmaceutical industries. The oil of M. piperita, known as peppermint oil, is widely used for headache, nerve pain, toothache, oral inflammation, joint conditions, itchiness, allergic rash, repelling mosquitoes, rheumatism, muscular pains, etc.  . Menthol is the major constituent of the essential oil constituents of peppermint oil . "
[Show abstract] [Hide abstract]
ABSTRACT: EST sequences of M. piperita available in the public domain (NCBI) were exploited to develop SSR markers. A total of 1316 ESTs were assembled into 155 contigs and 653 singletons and of these, 110 sequences were found to contain 130 SSRs, with a frequency of 1 SSR/3.4 kb. Dinucleotide repeat SSRs were most frequent (72.3%) with the AG/CT (43.8%) repeat motif followed by AT/AT (16.2%). Primers were successfully designed for 68 SSR-containing sequences (62.0%). The 68 primers amplified 13 accessions of M. piperita and 54 produced clear amplicons of the expected size. Of these 54, 33 (61%) were found to be polymorphic among M. piperita accessions, showing from 2 to 4 alleles with an average of 2.33 alleles/SSR, and the polymorphic information content (PIC) value varied between 0.13 and 0.51 (average 0.25). All the amplified SSRs showed transferability among four different species of Mentha, with a highest in M. arvensis (87.0%) and minimum in M. citrata (37.0%). The newly developed SSRs markers were found to be useful for diversity analysis, as they successfully differentiated among species and accessions of Mentha.
02/2015; 22(4). DOI:10.1016/j.cj.2015.02.002
Available from: Keyvan Pakshir
- "According to Behnam et al. , C. albicans and C. dubliniensis strains were maintained on Sabouraud dextrose agar (Difco) plates. After 48 hrs one loop of the colonies was transferred to 20 mL Sabouraud broth in 250 mL Erlenmeyer flasks and incubated overnight in an orbital shaker (100 rpm) at 30°C under aerobic condition. "
[Show abstract] [Hide abstract]
ABSTRACT: Variations in quantity and quality of essential oil (EO) from the aerial parts of cultivated
were determined. The EO of air-dried sample was obtained by a hydrodistillation method and analyzed by a gas chromatography/mass spectrometry (GC/MS). The antifungal activity of the EO was investigated by broth microdilution methods as recommended by Clinical and Laboratory Standards Institute. A biofilm formation inhibition was measured by using an XTT reduction assay. Menthol (53.28%) was the major compound of the EO followed by Menthyl acetate (15.1%) and Menthofuran (11.18%). The EO exhibited strong antifungal activities against the examined fungi at concentrations ranging from 0.12 to 8.0
L/mL. In addition, the EO inhibited the biofilm formation of
at concentrations up to 2
L/mL. Considering the wide range of the antifungal activities of the examined EO, it might be potentially used in the management of fungal infections or in the extension of the shelf life of food products.
12/2012; 2012(1):718645. DOI:10.5402/2012/718645
Available from: Soheil S Mahmoud
- "Two broad morphological types of glandular trichomes: capitate and peltate have been defined in plants. Abundance of glandular trichomes in plants and their relationship with essential oil production in many plants including peppermint (McCaskill and Croteau 1995; McCaskill and Croteau 1999; McConkey et al. 2000; Lange et al. 2000; Turner et al. 2000a, b; Mahmoud and Croteau 2003; Mahmoud et al. 2004; Ringer et al. 2005; Hyatt et al. 2007), lima bean (Bartram et al. 2006; Pinto et al. 2007), Lavender (Behnam et al. 2006; Bertomeu et al. 2006), and tomato (Li et al. 2004; Enfissi et al. 2005; Fridman et al. 2005), have been discussed, which has enriched our understanding of isoprenoid biosynthesis in plants. "
[Show abstract] [Hide abstract]
ABSTRACT: The terpenoids, or isoprenoids, are a large family of natural products that are best known as constituents of the essential
oils in plants. Because of their pleasant flavor and aromatic properties, essential oils have an economic importance in perfumery,
cosmetic, pharmaceutical and various other industries. However, expression profiles of regulatory genes in essential oil production
have not been dissected entirely, which may be an interesting topic of future research. In this report, we review recent studies
on isoprenoids biosynthesis in plants. We also discuss the progress of our recent research activities on isoprenoid studies.
Acta Physiologiae Plantarum 01/2009; 31(1):13-19. DOI:10.1007/s11738-008-0214-y · 1.58 Impact Factor
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.