Effect of Matricaria chamomilla L. flower essential oil on the growth and ultrastructure of Aspergillus niger van Tieghem

The antifungal activity of Matricaria chamomilla L. flower essential oil was evaluated against Aspergillus niger with the emphasis on the plant's mode of action at the electron microscopy level. A total of 21 compounds were identified in the plant oil using gas chromatography/mass spectrometry...

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Veröffentlicht in:International journal of food microbiology 2010-05, Vol.139 (3), p.127-133
Hauptverfasser: Tolouee, Marziyeh, Alinezhad, Soheil, Saberi, Reza, Eslamifar, Ali, Zad, Seyed Javad, Jaimand, Kamkar, Taeb, Jaleh, Rezaee, Mohammad-Bagher, Kawachi, Masanobu, Shams-Ghahfarokhi, Masoomeh, Razzaghi-Abyaneh, Mehdi
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container_issue 3
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container_title International journal of food microbiology
container_volume 139
creator Tolouee, Marziyeh
Alinezhad, Soheil
Saberi, Reza
Eslamifar, Ali
Zad, Seyed Javad
Jaimand, Kamkar
Taeb, Jaleh
Rezaee, Mohammad-Bagher
Kawachi, Masanobu
Shams-Ghahfarokhi, Masoomeh
Razzaghi-Abyaneh, Mehdi
description The antifungal activity of Matricaria chamomilla L. flower essential oil was evaluated against Aspergillus niger with the emphasis on the plant's mode of action at the electron microscopy level. A total of 21 compounds were identified in the plant oil using gas chromatography/mass spectrometry (GC/MS) accounting for 92.86% of the oil composition. The main compounds identified were α-bisabolol (56.86%), trans-trans-farnesol (15.64%), cis-β-farnesene (7.12%), guaiazulene (4.24%), α-cubebene (2.69%), α-bisabolol oxide A (2.19%) and chamazulene (2.18%). In the bioassay, A. niger was cultured on Potato Dextrose Broth medium in 6-well microplates in the presence of serial two fold concentrations of plant oil (15.62 to 1000 µg/mL) for 96 h at 28 °C. Based on the results obtained, A. niger growth was inhibited dose dependently with a maximum of ∼ 92.50% at the highest oil concentration. A marked retardation in conidial production by the fungus was noticed in relation to the inhibition of hyphal growth. The main changes of hyphae observed by transmission electron microscopy were disruption of cytoplasmic membranes and intracellular organelles, detachment of plasma membrane from the cell wall, cytoplasm depletion, and complete disorganization of hyphal compartments. In scanning electron microscopy, swelling and deformation of hyphal tips, formation of short branches, and collapse of entire hyphae were the major changes observed. Morphological alterations might be due to the effect on cell permeability through direct interaction of M. chamomilla essential oil with the fungal plasma membrane. These findings indicate the potential of M. chamomilla L. essential oil in preventing fungal contamination and subsequent deterioration of stored food and other susceptible materials.
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A total of 21 compounds were identified in the plant oil using gas chromatography/mass spectrometry (GC/MS) accounting for 92.86% of the oil composition. The main compounds identified were α-bisabolol (56.86%), trans-trans-farnesol (15.64%), cis-β-farnesene (7.12%), guaiazulene (4.24%), α-cubebene (2.69%), α-bisabolol oxide A (2.19%) and chamazulene (2.18%). In the bioassay, A. niger was cultured on Potato Dextrose Broth medium in 6-well microplates in the presence of serial two fold concentrations of plant oil (15.62 to 1000 µg/mL) for 96 h at 28 °C. Based on the results obtained, A. niger growth was inhibited dose dependently with a maximum of ∼ 92.50% at the highest oil concentration. A marked retardation in conidial production by the fungus was noticed in relation to the inhibition of hyphal growth. The main changes of hyphae observed by transmission electron microscopy were disruption of cytoplasmic membranes and intracellular organelles, detachment of plasma membrane from the cell wall, cytoplasm depletion, and complete disorganization of hyphal compartments. In scanning electron microscopy, swelling and deformation of hyphal tips, formation of short branches, and collapse of entire hyphae were the major changes observed. Morphological alterations might be due to the effect on cell permeability through direct interaction of M. chamomilla essential oil with the fungal plasma membrane. 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Psychology ; Gas Chromatography-Mass Spectrometry ; Growth inhibition ; Hyphae - drug effects ; Hyphae - growth &amp; development ; Hyphae - ultrastructure ; Matricaria ; Matricaria - chemistry ; Matricaria chamomilla ; microbial growth ; Microscopy, Electron, Scanning ; Microscopy, Electron, Transmission ; model food systems ; Oils, Volatile - chemistry ; Oils, Volatile - pharmacology ; Plant Oils - chemistry ; Plant Oils - pharmacology ; Sesquiterpenes - isolation &amp; purification ; Sesquiterpenes - pharmacology ; Ultrastructure</subject><ispartof>International journal of food microbiology, 2010-05, Vol.139 (3), p.127-133</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><rights>2010 Elsevier B.V. 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The main changes of hyphae observed by transmission electron microscopy were disruption of cytoplasmic membranes and intracellular organelles, detachment of plasma membrane from the cell wall, cytoplasm depletion, and complete disorganization of hyphal compartments. In scanning electron microscopy, swelling and deformation of hyphal tips, formation of short branches, and collapse of entire hyphae were the major changes observed. Morphological alterations might be due to the effect on cell permeability through direct interaction of M. chamomilla essential oil with the fungal plasma membrane. 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A total of 21 compounds were identified in the plant oil using gas chromatography/mass spectrometry (GC/MS) accounting for 92.86% of the oil composition. The main compounds identified were α-bisabolol (56.86%), trans-trans-farnesol (15.64%), cis-β-farnesene (7.12%), guaiazulene (4.24%), α-cubebene (2.69%), α-bisabolol oxide A (2.19%) and chamazulene (2.18%). In the bioassay, A. niger was cultured on Potato Dextrose Broth medium in 6-well microplates in the presence of serial two fold concentrations of plant oil (15.62 to 1000 µg/mL) for 96 h at 28 °C. Based on the results obtained, A. niger growth was inhibited dose dependently with a maximum of ∼ 92.50% at the highest oil concentration. A marked retardation in conidial production by the fungus was noticed in relation to the inhibition of hyphal growth. The main changes of hyphae observed by transmission electron microscopy were disruption of cytoplasmic membranes and intracellular organelles, detachment of plasma membrane from the cell wall, cytoplasm depletion, and complete disorganization of hyphal compartments. In scanning electron microscopy, swelling and deformation of hyphal tips, formation of short branches, and collapse of entire hyphae were the major changes observed. Morphological alterations might be due to the effect on cell permeability through direct interaction of M. chamomilla essential oil with the fungal plasma membrane. These findings indicate the potential of M. chamomilla L. essential oil in preventing fungal contamination and subsequent deterioration of stored food and other susceptible materials.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>20385420</pmid><doi>10.1016/j.ijfoodmicro.2010.03.032</doi><tpages>7</tpages></addata></record>
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subjects Antifungal activity
Antifungal Agents - chemistry
Antifungal Agents - pharmacology
antifungal properties
Aroma and flavouring agent industries
Aspergillus niger
Aspergillus niger - drug effects
Aspergillus niger - growth & development
Aspergillus niger - ultrastructure
Azulenes - isolation & purification
Azulenes - pharmacology
bioactive properties
bioassays
Biological and medical sciences
Cell Wall - drug effects
Cell Wall - ultrastructure
chamomile
chemical constituents of plants
Electron microscopy
Essential oil
essential oils
flowers
Flowers - chemistry
Food industries
Food microbiology
food safety
Fundamental and applied biological sciences. Psychology
Gas Chromatography-Mass Spectrometry
Growth inhibition
Hyphae - drug effects
Hyphae - growth & development
Hyphae - ultrastructure
Matricaria
Matricaria - chemistry
Matricaria chamomilla
microbial growth
Microscopy, Electron, Scanning
Microscopy, Electron, Transmission
model food systems
Oils, Volatile - chemistry
Oils, Volatile - pharmacology
Plant Oils - chemistry
Plant Oils - pharmacology
Sesquiterpenes - isolation & purification
Sesquiterpenes - pharmacology
Ultrastructure
title Effect of Matricaria chamomilla L. flower essential oil on the growth and ultrastructure of Aspergillus niger van Tieghem
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