Quantitative Genetical Aspects of<i>Chamomilla recutita</i>(L.) Rauschert

Massoud, Hekmat Y.; Franz, Chlodwig

doi:10.1080/10412905.1990.9697810

Cited by 11 publications

(4 citation statements)

References 3 publications

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“…Later, Horn et al [28] could identify four chemotypes as follows: Type I dominated by α-bisabolol and matricin, Type IIa by α-bisabolol oxide A and matricin, Type IIb by α-bisabolol oxide B and matricin, and Type III high in α-bisabolone oxide but devoid of α-bisabolol and matricin. Horn et al [28] as well as Massoud and Franz [29,30] also elucidated the genetically controlled mechanisms for the formation of α-bisabolol and its derivatives as well as chamazulene and identified the responsible genes, thus assigning genotypes to the chemotypes. As some of these chemotypes form locally distinct populations, they could also be termed "chemodem" [31]; however, this term is rarely used in literature.…”

Section: Discussionmentioning

confidence: 99%

Biological Activity of Matricaria chamomilla Essential Oils of Various Chemotypes

Höferl

Wanner²,

Tabanca³

et al. 2020

Planta Medica International Open

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The essential oil of Matricaria chamomilla L., which is commonly used for medicinal and cosmetic purposes, can be differentiated between several chemotypes. In the current study, six essential chamomile oil samples of various origins (four of commercial sources, one of cultivation, one of wild collection) were examined regarding their composition and biological activities, i. e., antibacterial, antifungal, mosquito repellent, and larvicidal effects. GC-MS analyses revealed that the samples largely varied in composition and could be attributed to various chemotypes. In contrast to the other two samples, the four commercial samples were unusually high in trans-β-farnesene. The overall antimicrobial effects were only moderate, but it could be shown that a higher content in α-bisabolol and a smaller in α-bisabolol oxides A and B had a positive effect on overall activity. All samples had a biting deterrent effect comparable to DEET. Higher concentrations of (Z )- and (E )-spiroethers improved larvicidal activity, whereas trans-β-farnesene had the opposite effect. In conclusion, the importance of α-bisabolol for the biological activity of chamomile essential oil could be demonstrated.

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Section: Discussionmentioning

confidence: 99%

Biological Activity of Matricaria chamomilla Essential Oils of Various Chemotypes

Höferl

Wanner²,

Tabanca³

et al. 2020

Planta Medica International Open

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“…During the life cycle the essential oil composition of German camomile is known to change drastically (Franz et al 1978 ;Lawrence 1986). Massoud and Franz (1990) reported that while the yield of German camomile oil is a strong attribute of environmental conditions the chemical composition is dependent on just a few genes (heritability values of oil yield, and chamazulene and a-bisabolol contents were in the range of 70È80%). Bettray and Vo mel (1992) have shown by a phytotron experiment, using four genotypes of German camomile, that shoot biomass, individual Ñower head weight and number of days from bud to Ñower formation were all negatively related to increasing temperatures (16, 20 and 26¡C).…”

Section: Introductionmentioning

confidence: 99%

Effects of Light-Temperature Regimes on Plant Growth and Essential Oil Yield of Selected Aromatic Plants

Fahlén

Welander

Wennersten

1997

J. Sci. Food Agric.

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“…In addition, Massoud and Franz (1990) investigated the genotype-environment interaction of a chamazulene-bisabolol chemotype. The content on chamazulene and α-bisabolol has shown that the highest oil and bisabolol content was reached in Egypt, while under German climatic conditions chamazulene was higher; similar results have been obtained by Letchamo and Marquard (1993).…”

Section: Discussionmentioning

confidence: 99%

Composición química y actividad antimicrobiana del aceite esencial de Plectranthus mollis (Lamiaceae) de la región de los Ghats occidentales, Karnataka, India

Joshi

2014

RBT

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Abstract:Plectranthus is a large and widespread genus with a diversity of ethnobotanical uses. In traditional medicine P. mollis has been used against snakebites, respiratory stimulant and vasoconstrictor, cardiac depressant, cure for haemorrahage, treatment of mental retardation and rheumatism. P. mollis is reported to exhibit relaxant activity on smooth and skeletal muscles, and has cytotoxic and anti-tumour promoting activity, and can be used in the treatment of cancer. The aim of the present study was to identify chemical composition of the essential oil of P. mollis and to evaluate antimicrobial efficacy of the oil. The essential oil of the flowering aerial parts of P. mollis was obtained by hydro-distillation and analyzed by gas chromatography equipped with a flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Twentyseven compounds were identified, which comprised 98.6% of the total constituents. The main compound was identified as fenchone (32.3%), followed by α-humulene (17.3%), piperitenone oxide (8.5%), cis-piperitone oxide (6.0%) and E-β-farnesene (5.9%). The oil was found rich in oxygenated monoterpenes type constituents (52.0%), followed by sesquiterpene hydrocarbons (40.2%), oxygenated sesquiterpenes (4.9%), and monoterpene hydrocarbons (1.5%). Antimicrobial activity of the essential oil of P. mollis was tested against six Gram-positive and eight Gram-negative bacteria, and three fungi, by using the tube dilution method. The oil was active against the tested Gram-positive and Gram-negative bacteria, and fungi at a concentration range of 0.065±0.008-0.937±0.139mg/mL, 0.468±0.069-3.333±0.527 mg/mL and 0.117±0.017-0.338±0.062mg/mL, respectively. The present study revealed that the oil constituents somehow were qualitatively similar and quantitatively different than earlier reports from different parts of the world. The essential oil of P. mollis has found to be antimicrobial activity which can be usefulness in the treatment of various infectious diseases caused by bacteria and fungi. Rev. Biol. Trop. 62 (2): 423-431. Epub 2014 June 01.

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Quantitative Genetical Aspects ofChamomilla recutita(L.) Rauschert

Cited by 11 publications

References 3 publications

Biological Activity of Matricaria chamomilla Essential Oils of Various Chemotypes

Biological Activity of Matricaria chamomilla Essential Oils of Various Chemotypes

Effects of Light-Temperature Regimes on Plant Growth and Essential Oil Yield of Selected Aromatic Plants

Composición química y actividad antimicrobiana del aceite esencial de Plectranthus mollis (Lamiaceae) de la región de los Ghats occidentales, Karnataka, India

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