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Sushil Kumar - One of the best experts on this subject based on the ideXlab platform.
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Positive correlation between menthol content and in vitro menthol tolerance in Mentha Arvensis L. cultivars
Journal of biosciences, 2000Co-Authors: Ajit Kumar Shasany, Suman Preet Singh Khanuja, Sunita Singh Dhawan, Sushil KumarAbstract:Menthol is a highly valued monoterpene produced by Japanese mint (Mentha Arvensis) as a natural product with wide applications in cosmetics, confectionery, flavours, beverages and therapeutics. Selection of high menthol yielding genotypes is therefore the ultimate objective of all genetic improvement programmes in Mentha Arvensis. A positive correlation was observed in the present study between menthol content in oils of evaluated genotypes and the level of tolerance to externally supplied menthol of explants of these genotypes in culture medium. The easy use of this relationship as a selectable biochemical marker opens the practical applicability of large scale in vitro screening of the germplasm, clones and breeders' material for selection of elite genotypes.
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Essential Oil Gland Number and Ultrastructure During Mentha Arvensis Leaf Ontogeny
Biologia plantarum, 1999Co-Authors: S. Shanker, Sushil Kumar, P.v. Ajayakumar, Sangwan, Rajender S. SangwanAbstract:Alterations in essential oil gland number, distribution and fine structure, and the oil content in the leaf of Mentha Arvensis L. were examined during its growth and senescence. Accumulation of essential oil occurred predominantly during the rapid leaf expansion phase followed by a similar decline. The oil gland (trichome) number increased upto leaf maturation and declined thereafter. Initially, cuticle remains tightly apposed to the secretory head of oil glands but progressively a sub-cuticular space appears to be created for the oil. Considerable enlargement of vacuole with ageing is witnessed, whereas cytoplasm gradually decreases to a thin peripheral layer. Some secretory cells from senescing leaf were found almost empty, having only a few remnant oil droplets.
Sunita Singh Dhawan - One of the best experts on this subject based on the ideXlab platform.
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Phylogentic relationship of cold tolerant Mentha Arvensis variety ‘CIM Kranti’ with some released varieties as assessed through physiological and molecular analysis
Journal of Applied Research on Medicinal and Aromatic Plants, 2018Co-Authors: Sunita Singh Dhawan, Anand Mishra, Pankhuri Gupta, Janak Raj Bahl, R.p. BansalAbstract:Abstract An elite genotype of Mentha Arvensis was developed through half sib progeny selection with cold tolerance and higher yields of essential oil during winters. Molecular variations were assessed among nine released commercial varieties and the new variety 'CIM-Kranti' by RAPD and ISSR. In total, 20 RAPD primers and 16 microsatellite primers were used to detect the polymorphism among ten varieties of Mentha Arvensis including new genotype. Phylogenetic analysis revealed a close relationship of the variety 'CIM-Kranti' to 'Gomti' and 'Shivalik' genotype of Mentha Arvensis. RAPD and ISSR analysis resulted in two different phylogenetic relationships of the 10 genotypes. Comparative physiological variations were assessed by analyzing antioxidants, glutathione reductase, lipid peroxidation assay and relative water content of the new variety CIM Kranti, which clearly demonstrated tolerance towards cold therefore having potential of giving higher additional essential oil yields during winters.
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Trichomes and Yield Traits in Mentha Arvensis: Genotype Performance and Stability Evaluation
Journal of Herbs Spices & Medicinal Plants, 2017Co-Authors: Anand Mishra, Payal Jain, Raj Kishori Lal, Sunita Singh DhawanAbstract:The stability and adaptability pattern of nine cultivars/varieties of Mentha Arvensis, namely, Saksham, Kosi, Himalaya, Gomti, Sambhav, Kalka, Damroo, Kushal, and Shivalik, over three consecutive years was established. Genotype × environment interactions (G × Y) were different for characters, indicating that the genotypes had a varying linear response to environmental changes. Glandular trichome could be a key parameter over the years, and their ratio to nonglandular trichome for selection of stable cultivars with high essential oil yield. The cultivars Kosi and Himalaya were highly stable for essential oil yield, whereas cultivars Kosi, Himalaya, and Kalka showed good adaptability for glandular trichomes and their ratio to nonglandular trichomes. These cultivars were highly stable and promising for commercial exploitation.
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Positive correlation between menthol content and in vitro menthol tolerance in Mentha Arvensis L. cultivars
Journal of biosciences, 2000Co-Authors: Ajit Kumar Shasany, Suman Preet Singh Khanuja, Sunita Singh Dhawan, Sushil KumarAbstract:Menthol is a highly valued monoterpene produced by Japanese mint (Mentha Arvensis) as a natural product with wide applications in cosmetics, confectionery, flavours, beverages and therapeutics. Selection of high menthol yielding genotypes is therefore the ultimate objective of all genetic improvement programmes in Mentha Arvensis. A positive correlation was observed in the present study between menthol content in oils of evaluated genotypes and the level of tolerance to externally supplied menthol of explants of these genotypes in culture medium. The easy use of this relationship as a selectable biochemical marker opens the practical applicability of large scale in vitro screening of the germplasm, clones and breeders' material for selection of elite genotypes.
José Galberto Martins Da Costa - One of the best experts on this subject based on the ideXlab platform.
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anti candida activity of Mentha Arvensis and turnera ulmifolia
Journal of Medicinal Food, 2012Co-Authors: Karla K A Santos, José Galberto Martins Da Costa, Edinardo F F Matias, Celestina E S Souza, Saulo R Tintino, Maria Flaviana Bezerra Morais Braga, Glaucia M M Guedes, Lavouisier F B Nogueira, Edson C Morais, Irwin Rose Alencar De MenezesAbstract:Abstract Candidiasis is the most frequent infection by opportunistic fungi, frequently caused by Candida albicans, Candida tropicalis, Candida parapsilosis, Candida glabrata, and Candida krusei. Mentha Arvensis L. is a herbaceous plant that occurs throughout South America and is used as a tea and in the folk medicine. Turnera ulmifolia L. is already known to be of medicinal value. Ethanol extracts from M. Arvensis and T. ulmifolia were assayed for antifungal activity against strains of C. albicans, C. tropicalis, and C. krusei. No clinically relevant antifungal activity was demonstrated by the extracts; however, a potentiation effect was observed when the extracts were applied with metronidazole against C. tropicalis. M. Arvensis and T. ulmifolia could represent a source of natural products with modifying antifungal activity.
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Anti-Candida activity of Mentha Arvensis and Turnera ulmifolia
Journal of medicinal food, 2011Co-Authors: Karla K A Santos, José Galberto Martins Da Costa, Edinardo F F Matias, Celestina E S Souza, Saulo R Tintino, Maria Flaviana Bezerra Morais Braga, Glaucia M M Guedes, Lavouisier F B Nogueira, Edson C Morais, Irwin Rose Alencar De MenezesAbstract:Abstract Candidiasis is the most frequent infection by opportunistic fungi, frequently caused by Candida albicans, Candida tropicalis, Candida parapsilosis, Candida glabrata, and Candida krusei. Mentha Arvensis L. is a herbaceous plant that occurs throughout South America and is used as a tea and in the folk medicine. Turnera ulmifolia L. is already known to be of medicinal value. Ethanol extracts from M. Arvensis and T. ulmifolia were assayed for antifungal activity against strains of C. albicans, C. tropicalis, and C. krusei. No clinically relevant antifungal activity was demonstrated by the extracts; however, a potentiation effect was observed when the extracts were applied with metronidazole against C. tropicalis. M. Arvensis and T. ulmifolia could represent a source of natural products with modifying antifungal activity.
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Phytochemical Prospection, Toxicity and Antimicrobial Activity of Mentha Arvensis (Labiatae) from Northeast of Brazil
Journal of Young Pharmacists, 2009Co-Authors: Eidla M. M. Nascimento, Fabíola F.g. Rodrigues, Adriana Rolim Campos, José Galberto Martins Da CostaAbstract:The present study has been designed with the objective to examine the ethanol extract of Mentha Arvensis leaves, in order to evaluate its chemical composition, investigate its in vitro antimicrobial potential against strains of Escherichia coli, Pseudomonas aeruginosa, Shigella fl exineri, Klebsiella pneumoniae and Sthaphylococcus aureus, and Þ nd its toxicity toward Artemia salina and. Phytochemical analysis revealed the presence of catechic tannins, s avones, s avonols, xantones, s avonols, s avonones and steroids. The antibacterial activity is more signiÞ cant against Sthaphylococcus aureus. In toxicity tests on Artemia salina, the ethanol extract from Mentha Arvensis leaves showed LC50 value of 100 µg/mL. These results may justify the popular use of this species as it has antimicrobial activity and demonstrate its signiÞ cant toxic effect on brine shrimp. However, in order to evaluate possible clinical application in therapy of infectious diseases, further studies about the safety and toxicity of isolated compounds are needed. Key words: Antibacterial activity, Mentha Arvensis, phytochemical prospection, toxicity.
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Potentiating effect of Mentha Arvensis and chlorpromazine in the resistance to aminoglycosides of methicillin-resistant Staphylococcus aureus.
In vivo (Athens Greece), 2009Co-Authors: Henrique Douglas Melo Coutinho, José Galberto Martins Da Costa, Edeltrudes De Oliveira Lima, Vivyanne S. Falcão-silva, José P. Siqueira-júniorAbstract:Background: This is the first report testing the antibiotic resistance-modifying activity of Mentha Arvensis against MRSA (methicillin - resistant Staphylococcus aureus). Materials and Methods: In this study an ethanol extract of Mentha Arvensis L. and chlorpromazine were tested for their antimicrobial activity alone or in combination with conventional antibiotics against MRSA strains. Results: A potentiating effect of this extract on gentamicin, kanamycin and neomycin was demonstrated. Similarly, a potentiating effect of chlorpromazine on the same aminoglycosides was observed, indicating the involvement of an efflux system in the resistance to these antibiotics. Conclusion: It is therefore suggested that extracts from M. Arvensis could be used as a source of plant-derived natural products with resistance- modifying activity, such as in the case of aminoglycosides, constituting a new weapon against bacterial resistance to antibiotics, as with chlorpromazine. Staphylococcus genus is widely spread in nature, being part of the indigenous microbiota of skin and mucosa of animal and birds. Some Staphylococcus species are frequently recognized as etiological agents of many animal and human
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enhancement of the antibiotic activity against a multiresistant escherichia coli by Mentha Arvensis l and chlorpromazine
Chemotherapy, 2008Co-Authors: Henrique Douglas Melo Coutinho, José Galberto Martins Da Costa, Edeltrudes De Oliveira Lima, Vivyanne S Falcaosilva, Jose P SiqueirajuniorAbstract:Background: This is the first report testing the antibiotic resistance-modifying activity of Mentha Arvensis. Methods: In this study an ethanol
Zhonglin Yang - One of the best experts on this subject based on the ideXlab platform.
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Repellent activity screening of 12 essential oils against Aedes albopictus Skuse: Repellent liquid preparation of Mentha Arvensis and Litsea cubeba oils and bioassay on hand skin
Industrial Crops and Products, 2019Co-Authors: Min Zhang, Zhonglin YangAbstract:Abstract The repellent activities of 12 selected essential oils against Aedes albopictus were evaluated using a Y-tube olfactometer. Mentha Arvensis oil showed the best repellent activity among the selected oils, with 91.66% percentage repellency at 20 min, followed by Litsea cubeba oil (73.94%) and Laurus nobilis oil (67.12%). The repellent activities of nine designed and prepared repellent liquid formulas were tested against Ae. albopictus using the arm-in-cage method. The optimal formula of the repellent liquid was defined as “10% Litsea cubeba oil + 10% Mentha Arvensis oil + 5% Tween 80 + 5% vanillin +70% absolute ethyl alcohol.” The effective hand skin protection time of this liquid formula is 4 h, indicating its potential product development value. L. cubeba and M. Arvensis oils can be used as green repellents for mosquito control because of their low toxicity and environmental friendliness.
Prabhat Kumar Shukla - One of the best experts on this subject based on the ideXlab platform.
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Influenceof Sclerotinia sclerotiorum on growth, oil contents and biochemical changes in Mentha Arvensis
Indian phytopathology, 2009Co-Authors: Kahkashan Perveen, Akhtar Haseeb, Prabhat Kumar ShuklaAbstract:The effect of S. sclerotiorum on the disease development, growth, oil yield and biochemical changes in Mentha Arvensis (cv. Gomti), herb with rich source of menthol, was determined. A corresponding decrease in plant fresh and dry weights of plants was observed with the increase in initial inoculum levels of S. sclerotiorum. The maximum reduction was observed at inoculum level of 2.4 g mycelium/kg soil. The S. sclerotiorum infection in roots and suckers was increased (18-80%) with increasing the inoculum dose (0.2 to 2.4 g/kg soil). Significant (P < 0.01) reduction in oil yield, total chlorophyll, total phenol and total sugar of M. Arvensis was observed in infected plants irrespective of inoculum level as compared to uninoculated control.
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Influence of Meloidogyne incognita and Sclerotinia sclerotiorum alone and in combined inoculations on Mentha Arvensis
Indian journal of nematology, 2007Co-Authors: Kahkashan Perveen, Akhtar Haseeb, Prabhat Kumar ShuklaAbstract:Sequential, simultaneous and single inoculation of Meloidogyne incognita (5000 J2/5 kg soil) and Sclerotinia sclerotiorum (3 g mycelium/5 kg soil) had negative effect on Mentha Arvensis cv. Gomti. The highest reduction in shoot-root/sucker dry weight, oil yield, chlorophyll, total phenol and total sugar was observed in plants inoculated simultaneously with the nematode and fungus followed by nematode inoculation seven days prior to fungus and fungus inoculated seven days prior to nematode, respectively. Highest reproduction rate of M. incognita and root-knot index was observed in plants inoculated with the nematode alone, whereas, highest roots/suckers infection by the fungus was observed in plants inoculated simultaneously with the nematode and fungus.
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Pathogenic Potential of Meloidogyne incognita on Mentha Arvensis cv. Gomti
Indian journal of nematology, 2006Co-Authors: Kahkashan Perveen, Akhtar Haseeb, Prabhat Kumar ShuklaAbstract:Studies were made to determine the effect of initial inoculum levels (Pi) of Meloidogyne on Mentha Arvensis cv. Gomti. There was a positive relationship between the initial inoculum levels of M. incognita and reduction in shoot-root/sucker fresh and dry weights, oil yield, total chlorophyll, total phenol and total sugar content of fresh leaves. The maximum reduction in corresponding parameters was recorded at the highest initial inoculum level (25,000 J2/5 kg soil) as compared to uninoculated control. There was a negative relationship between initial inoculum densities and rate of nematode multiplication. Maximum nematode final population Pf (1,33,430) and root-knot index (3.00) were observed at the highest Pi (25,000 J2/5 kg soil), whereas, maximum reproduction-factor was observed at minimum Pi (500 J2/5 kg soil).