Isolation of Pseudozyma churashimaensis sp. nov., a novel ustilaginomycetous yeast species as a producer of glycolipid biosurfactants, mannosylerythritol lipids(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)
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概要
- 論文の詳細を見る
An ustilaginomycetous anamorphic yeast species isolated from the leaves of Saccharum officinarum (sugarcane) in Okinawa, Japan, was identified as a novel Pseudozyma species based on morphological and physiological aspects and molecular taxonomic analysis using the D1/D2 domains of the large subunit (26S) rRNA gene and the internal transcribed spacer 1 (ITS1)-5.8S-ITS2 regions. The name Pseudozyma churashimaensis sp. nov. was proposed for the novel species, with JCM 16988^T as the type strain. Interestingly, P. churashimaensis was found to produce glycolipid biosurfactants, a mixture of mannosylerythritol lipids (MELs), including a novel tri-acetylated derivative (MEL-A2), from glucose. The observed critical micelle concentration (CMC) and the surface tension at CMC of MEL-A2 were 1.7×10^<-6>M and 29.2mN/m, respectively. Moreover, on a water-penetration scan, MEL-A2 efficiently formed different lyotropic liquid crystalline phases, including the lamella phase at a wide range of concentrations, indicating its excellent surface-active and self-assembling properties. The novel strain of the genus Pseudozyma should thus facilitate the application of glycolipid biosurfactants in combination with other MEL producers.
著者
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Kitamoto Dai
Research Institute For Innovation In Sustainable Chemistry National Institute Of Advanced Science An
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Fukuoka Tokuma
Research Institute For Innovation In Sustainable Chemistry National Institute Of Advanced Science An
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Imura Tomohiro
Research Institute For Innovation In Sustainable Chemistry National Institute Of Advanced Science An
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Imura T
National Institute Of Advanced Industrial Science And Technology (aist)
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Imura Tomohiro
National Institute Of Advanced Industrial Science And Technology (aist)
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KONDO Yukishige
Faculty of Engineering, Science University of Tokyo
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Kitamoto Dai
Research Institute For Innovation In Sustainable Chemistry National Institute Of Advanced Industrial
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Takashima Masako
Japan Collection Of Microorganisms (jcm) Bioscience Technology Center Riken (the Institute Of Physic
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Imura Tomohiro
National Institute Of Advanced Industrial Science And Technology
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Hirose Naoto
Okinawa Prefectural Agricultural Res. Center
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Morita Tomotake
Research Institute For Innovation In Sustainable Chemistry National Institute Of Advanced Science An
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Takashima Masako
Japan Collection Of Microorganisms Riken Bioresource Center
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Ogura Yuki
Faculty of Engineering, Department of Industrial Chemistry, Tokyo University of Science
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Hirose Naoto
Food Preservation and Processing Laboratory, Okinawa Prefectural Agricultural Research Center
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Ogura Yuki
Faculty Of Engineering Department Of Industrial Chemistry Tokyo University Of Science
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Hirose Naoto
Food Preservation And Processing Laboratory Okinawa Prefectural Agricultural Research Center
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Kondo Yukishige
Faculty Of Engineering Department Of Industrial Chemistry Tokyo University Of Science
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