Surface properties of the conidiospores of Phanerochaete chrysosporium and their relevance to pellet formation.
Identifieur interne : 000D93 ( Main/Corpus ); précédent : 000D92; suivant : 000D94Surface properties of the conidiospores of Phanerochaete chrysosporium and their relevance to pellet formation.
Auteurs : P A Gerin ; Y. Dufrene ; M N Bellon-Fontaine ; M. Asther ; P G RouxhetSource :
- Journal of bacteriology [ 0021-9193 ] ; 1993.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Carbon, Oxygen.
- chemical , chemistry : Fungal Proteins.
- chemistry : Fungi, Spores, Fungal.
- growth & development : Fungi, Spores, Fungal.
- Spectrometry, X-Ray Emission, Surface Properties.
Abstract
The conidiospores of the white rot basidiomycete Phanerochaete chrysosporium tend to aggregate during swelling and germination in agitated liquid medium; as time passes, the initial aggregates tend to associate together and to capture conidiospores that remain isolated. The surface chemical compositions of the conidiospores and of developed hyphae were analyzed by X-ray photoelectron spectroscopy. The data were interpreted by modelling the surface in terms of proteins, polysaccharides and hydrocarbonlike compounds. The surface molecular composition of the dormant conidiospores was estimated to be about 45% proteins, 20% carbohydrates, and 35% hydrocarbonlike compounds. There was an increase in the polysaccharide content during germination. Later, when the hyphae were developed, the polysaccharide content became still higher, and the protein content dropped. The initial step of aggregation is attributed to polysaccharide bridging; its occurrence cannot be explained by a change of the overall hydrophobicity or electrical properties of the conidiospores.
DOI: 10.1128/jb.175.16.5135-5144.1993
PubMed: 8349553
PubMed Central: PMC204980
Links to Exploration step
pubmed:8349553Le document en format XML
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<author><name sortKey="Gerin, P A" sort="Gerin, P A" uniqKey="Gerin P" first="P A" last="Gerin">P A Gerin</name>
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<author><name sortKey="Dufrene, Y" sort="Dufrene, Y" uniqKey="Dufrene Y" first="Y" last="Dufrene">Y. Dufrene</name>
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<author><name sortKey="Bellon Fontaine, M N" sort="Bellon Fontaine, M N" uniqKey="Bellon Fontaine M" first="M N" last="Bellon-Fontaine">M N Bellon-Fontaine</name>
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<author><name sortKey="Asther, M" sort="Asther, M" uniqKey="Asther M" first="M" last="Asther">M. Asther</name>
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<author><name sortKey="Rouxhet, P G" sort="Rouxhet, P G" uniqKey="Rouxhet P" first="P G" last="Rouxhet">P G Rouxhet</name>
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<author><name sortKey="Gerin, P A" sort="Gerin, P A" uniqKey="Gerin P" first="P A" last="Gerin">P A Gerin</name>
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<author><name sortKey="Bellon Fontaine, M N" sort="Bellon Fontaine, M N" uniqKey="Bellon Fontaine M" first="M N" last="Bellon-Fontaine">M N Bellon-Fontaine</name>
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<series><title level="j">Journal of bacteriology</title>
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<term>Fungal Proteins (chemistry)</term>
<term>Fungi (chemistry)</term>
<term>Fungi (growth & development)</term>
<term>Oxygen (analysis)</term>
<term>Spectrometry, X-Ray Emission (MeSH)</term>
<term>Spores, Fungal (chemistry)</term>
<term>Spores, Fungal (growth & development)</term>
<term>Surface Properties (MeSH)</term>
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<front><div type="abstract" xml:lang="en">The conidiospores of the white rot basidiomycete Phanerochaete chrysosporium tend to aggregate during swelling and germination in agitated liquid medium; as time passes, the initial aggregates tend to associate together and to capture conidiospores that remain isolated. The surface chemical compositions of the conidiospores and of developed hyphae were analyzed by X-ray photoelectron spectroscopy. The data were interpreted by modelling the surface in terms of proteins, polysaccharides and hydrocarbonlike compounds. The surface molecular composition of the dormant conidiospores was estimated to be about 45% proteins, 20% carbohydrates, and 35% hydrocarbonlike compounds. There was an increase in the polysaccharide content during germination. Later, when the hyphae were developed, the polysaccharide content became still higher, and the protein content dropped. The initial step of aggregation is attributed to polysaccharide bridging; its occurrence cannot be explained by a change of the overall hydrophobicity or electrical properties of the conidiospores.</div>
</front>
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<Abstract><AbstractText>The conidiospores of the white rot basidiomycete Phanerochaete chrysosporium tend to aggregate during swelling and germination in agitated liquid medium; as time passes, the initial aggregates tend to associate together and to capture conidiospores that remain isolated. The surface chemical compositions of the conidiospores and of developed hyphae were analyzed by X-ray photoelectron spectroscopy. The data were interpreted by modelling the surface in terms of proteins, polysaccharides and hydrocarbonlike compounds. The surface molecular composition of the dormant conidiospores was estimated to be about 45% proteins, 20% carbohydrates, and 35% hydrocarbonlike compounds. There was an increase in the polysaccharide content during germination. Later, when the hyphae were developed, the polysaccharide content became still higher, and the protein content dropped. The initial step of aggregation is attributed to polysaccharide bridging; its occurrence cannot be explained by a change of the overall hydrophobicity or electrical properties of the conidiospores.</AbstractText>
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