Effects of Citrus sinensis (L.) Osbeck epicarp essential oil on growth and morphogenesis of Aspergillus niger (L.) Van Tieghem.
Identifieur interne : 002055 ( Main/Curation ); précédent : 002054; suivant : 002056Effects of Citrus sinensis (L.) Osbeck epicarp essential oil on growth and morphogenesis of Aspergillus niger (L.) Van Tieghem.
Auteurs : Neeta Sharma [Inde] ; Abhishek TripathiSource :
- Microbiological research [ 0944-5013 ] ; 2008.
English descriptors
- KwdEn :
- Antifungal Agents (pharmacology), Aspergillus niger (cytology), Aspergillus niger (drug effects), Aspergillus niger (growth & development), Cell Wall (ultrastructure), Citrus sinensis (chemistry), Cyclohexenes (isolation & purification), Gas Chromatography-Mass Spectrometry, Hyphae (cytology), Hyphae (ultrastructure), Microbial Sensitivity Tests, Microbial Viability, Microscopy, Microscopy, Electron, Scanning, Morphogenesis, Mycelium (drug effects), Mycelium (growth & development), Oils, Volatile (chemistry), Oils, Volatile (isolation & purification), Oils, Volatile (pharmacology), Plant Extracts (isolation & purification), Plant Extracts (pharmacology), Terpenes (isolation & purification).
- MESH :
- chemical , chemistry : Oils, Volatile.
- chemical , isolation & purification : Cyclohexenes, Oils, Volatile, Plant Extracts, Terpenes.
- chemical , pharmacology : Antifungal Agents, Oils, Volatile, Plant Extracts.
- chemistry : Citrus sinensis.
- cytology : Aspergillus niger, Hyphae.
- drug effects : Aspergillus niger, Mycelium.
- growth & development : Aspergillus niger, Mycelium.
- ultrastructure : Cell Wall, Hyphae.
- Gas Chromatography-Mass Spectrometry, Microbial Sensitivity Tests, Microbial Viability, Microscopy, Microscopy, Electron, Scanning, Morphogenesis.
Abstract
Essential oils from different plant parts are known for their antimicrobial activity but the antifungal effects of essential oil from Citrus sinensis (L.) Osbeck epicarp on growth and morphogenesis of Aspergillus niger has not been observed so far. The mycelial growth was inhibited at 2.5 and 3.0 microg/ml of oil in Potato Dextrose Broth and Agar medium, respectively. These concentrations were fungicidal under the test conditions. The fungitoxicity of oil did not change even at exposure to 100 degrees C and autoclaving. The main changes observed under light and scanning electron microscopy after oil treatment were loss of cytoplasm in fungal hyphae, and budding of hyphal tip. The hyphal wall and its diameter became markedly thinner, distorted and resulted in cell wall disruption. The flattened and empty hyphal tips bifurcated into bud like structures. GC-MS studies of the oil revealed the presence of 10 chemical constituents. Limonene has been found to be major component (84.2%).
DOI: 10.1016/j.micres.2006.06.009
PubMed: 16870411
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Van Tieghem.</title><author><name sortKey="Sharma, Neeta" sort="Sharma, Neeta" uniqKey="Sharma N" first="Neeta" last="Sharma">Neeta Sharma</name><affiliation wicri:level="1"><nlm:affiliation>Mycology and Plant Pathology Division, Department of Botany, University of Lucknow, Lucknow, India. dr_neeta_sharma2003@yahoo.com</nlm:affiliation><country xml:lang="fr">Inde</country><wicri:regionArea>Mycology and Plant Pathology Division, Department of Botany, University of Lucknow, Lucknow</wicri:regionArea><wicri:noRegion>Lucknow</wicri:noRegion></affiliation></author><author><name sortKey="Tripathi, Abhishek" sort="Tripathi, Abhishek" uniqKey="Tripathi A" first="Abhishek" last="Tripathi">Abhishek Tripathi</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2008">2008</date><idno type="RBID">pubmed:16870411</idno><idno type="pmid">16870411</idno><idno type="doi">10.1016/j.micres.2006.06.009</idno><idno type="wicri:Area/PubMed/Corpus">000A79</idno><idno type="wicri:Area/PubMed/Curation">000A79</idno><idno type="wicri:Area/PubMed/Checkpoint">000A79</idno><idno type="wicri:Area/Ncbi/Merge">000612</idno><idno type="wicri:Area/Ncbi/Curation">000612</idno><idno type="wicri:Area/Ncbi/Checkpoint">000612</idno><idno type="wicri:doubleKey">0944-5013:2008:Sharma N:effects:of:citrus</idno><idno type="wicri:Area/Main/Merge">002113</idno><idno type="wicri:Area/Main/Curation">002055</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Effects of Citrus sinensis (L.) Osbeck epicarp essential oil on growth and morphogenesis of Aspergillus niger (L.) Van Tieghem.</title><author><name sortKey="Sharma, Neeta" sort="Sharma, Neeta" uniqKey="Sharma N" first="Neeta" last="Sharma">Neeta Sharma</name><affiliation wicri:level="1"><nlm:affiliation>Mycology and Plant Pathology Division, Department of Botany, University of Lucknow, Lucknow, India. dr_neeta_sharma2003@yahoo.com</nlm:affiliation><country xml:lang="fr">Inde</country><wicri:regionArea>Mycology and Plant Pathology Division, Department of Botany, University of Lucknow, Lucknow</wicri:regionArea><wicri:noRegion>Lucknow</wicri:noRegion></affiliation></author><author><name sortKey="Tripathi, Abhishek" sort="Tripathi, Abhishek" uniqKey="Tripathi A" first="Abhishek" last="Tripathi">Abhishek Tripathi</name></author></analytic><series><title level="j">Microbiological research</title><idno type="ISSN">0944-5013</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Antifungal Agents (pharmacology)</term><term>Aspergillus niger (cytology)</term><term>Aspergillus niger (drug effects)</term><term>Aspergillus niger (growth & development)</term><term>Cell Wall (ultrastructure)</term><term>Citrus sinensis (chemistry)</term><term>Cyclohexenes (isolation & purification)</term><term>Gas Chromatography-Mass Spectrometry</term><term>Hyphae (cytology)</term><term>Hyphae (ultrastructure)</term><term>Microbial Sensitivity Tests</term><term>Microbial Viability</term><term>Microscopy</term><term>Microscopy, Electron, Scanning</term><term>Morphogenesis</term><term>Mycelium (drug effects)</term><term>Mycelium (growth & development)</term><term>Oils, Volatile (chemistry)</term><term>Oils, Volatile (isolation & purification)</term><term>Oils, Volatile (pharmacology)</term><term>Plant Extracts (isolation & purification)</term><term>Plant Extracts (pharmacology)</term><term>Terpenes (isolation & purification)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Oils, Volatile</term></keywords><keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en"><term>Cyclohexenes</term><term>Oils, Volatile</term><term>Plant Extracts</term><term>Terpenes</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Antifungal Agents</term><term>Oils, Volatile</term><term>Plant Extracts</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Citrus sinensis</term></keywords><keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Aspergillus niger</term><term>Hyphae</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Aspergillus niger</term><term>Mycelium</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Aspergillus niger</term><term>Mycelium</term></keywords><keywords scheme="MESH" qualifier="ultrastructure" xml:lang="en"><term>Cell Wall</term><term>Hyphae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Gas Chromatography-Mass Spectrometry</term><term>Microbial Sensitivity Tests</term><term>Microbial Viability</term><term>Microscopy</term><term>Microscopy, Electron, Scanning</term><term>Morphogenesis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Essential oils from different plant parts are known for their antimicrobial activity but the antifungal effects of essential oil from Citrus sinensis (L.) Osbeck epicarp on growth and morphogenesis of Aspergillus niger has not been observed so far. The mycelial growth was inhibited at 2.5 and 3.0 microg/ml of oil in Potato Dextrose Broth and Agar medium, respectively. These concentrations were fungicidal under the test conditions. The fungitoxicity of oil did not change even at exposure to 100 degrees C and autoclaving. The main changes observed under light and scanning electron microscopy after oil treatment were loss of cytoplasm in fungal hyphae, and budding of hyphal tip. The hyphal wall and its diameter became markedly thinner, distorted and resulted in cell wall disruption. The flattened and empty hyphal tips bifurcated into bud like structures. GC-MS studies of the oil revealed the presence of 10 chemical constituents. Limonene has been found to be major component (84.2%).</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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