Abstract
Thermophilic actinomycetes were isolated from sediment of the Chingshuei hot spring in north Taiwan, and the strain HS 45-1 was selected from colonies which formed distinct clear zones on agar plate with emulsified polyethylene succinate (PES). The film of PES disappeared within 6 days in liquid cultures at 50 degrees C. The strain HS 45-1 was also able to degrade poly (epsilon-carpolactone) (PCL) and poly (3-hydroxybutyrate) (PHB) films completely within 6 days in liquid cultures. Basing on the results of phynotypic characteristics, phylogenetic studies and DNA-DNA hybridization, strain HS 45-1 should be assigned to Micorbispora rosea subsp. taiwanensis.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Actinomycetales / classification*
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Actinomycetales / isolation & purification
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Actinomycetales / metabolism*
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Actinomycetales / ultrastructure
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Biodegradation, Environmental
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Colony Count, Microbial
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Hydroxybutyrates / chemistry
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Hydroxybutyrates / metabolism
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Microscopy, Electron, Scanning
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Phylogeny
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Polyesters / chemistry
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Polyesters / metabolism
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Polyethylenes / chemistry
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Polyethylenes / metabolism*
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RNA, Ribosomal, 16S / genetics
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Succinates / chemistry
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Succinates / metabolism*
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Surface Properties
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Temperature
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Time Factors
Substances
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Hydroxybutyrates
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Polyesters
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Polyethylenes
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RNA, Ribosomal, 16S
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Succinates
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poly(ethylene succinate)
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polycaprolactone
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poly-beta-hydroxybutyrate