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Todd JR, Matsumoto T, Ueno R, Murugaiyan J, Britten A, King JW, Odaka Y, Oberle A, Weise C, Roesler U, Pore RS. Medical phycology 2017. Med Mycol 2018; 56:S188-S204. [PMID: 29767780 DOI: 10.1093/mmy/myx162] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 03/09/2018] [Indexed: 11/13/2022] Open
Abstract
In 2014, ISHAM formed a new working group: "Medical Phycology: Protothecosis and Chlorellosis." The purpose of this working group is to help facilitate collaboration and communication among people interested in the pathogenic algae, to share ideas and work together. Here we present reports on recent work we have done in five areas. 1. The history of medical phycology as a branch of science. 2. Aspects of the genetics of Prototheca. 3. Aspects of the proteins of Prototheca. 4. Human infections caused by Prototheca. 5. Dairy cow mastitis caused by Prototheca.
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Affiliation(s)
- John R Todd
- Section of Infectious Diseases, Louisiana State University School of Medicine, Shreveport, Louisiana, USA
| | | | - Ryohei Ueno
- Department of Life and Health Sciences, Teikyo University of Science, Tokyo, Japan
| | - Jayaseelan Murugaiyan
- Freie Universität Berlin, Institute of Animal Hygiene and Environmental Health, Center for Infectious Medicine, Berlin, Germany
| | | | - John W King
- Section of Infectious Diseases, Louisiana State University School of Medicine, Shreveport, Louisiana, USA
| | - Yoshinobu Odaka
- Department of Pediatric Ophthalmology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Arnold Oberle
- Department of Pathology, Louisiana State University School of Medicine, Shreveport, Louisiana, USA
| | - Christoph Weise
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, Berlin, Germany
| | - Uwe Roesler
- Freie Universität Berlin, Institute of Animal Hygiene and Environmental Health, Center for Infectious Medicine, Berlin, Germany
| | - R Scott Pore
- Department of Medical Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
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Achlorophyllous alga Prototheca zopfii oxidizes n-alkanes with different carbon-chain lengths through a unique subterminal oxidation pathway. J Biosci Bioeng 2014; 117:275-7. [DOI: 10.1016/j.jbiosc.2013.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 09/02/2013] [Accepted: 09/03/2013] [Indexed: 11/18/2022]
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Subterminal oxidation of n-alkanes in achlorophyllous alga Prototheca sp. J Biosci Bioeng 2013; 116:472-4. [PMID: 23651808 DOI: 10.1016/j.jbiosc.2013.04.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/11/2013] [Accepted: 04/15/2013] [Indexed: 11/20/2022]
Abstract
Some Prototheca sp. are known to be involved in n-hexadecane degradation. Two derivatives derived from n-hexadecane in such Prototheca sp. were identified as 5-hexadecanone and 5-hexadecanol. n-Hexadecane was assumed to be converted to 5-hexadecanol and then to 5-hexadecanone through a unique subterminal oxidation pathway in such Prototheca sp.
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Ueno R, Urano N, Suzuki M. Phylogeny of the non-photosynthetic green micro-algal genus Prototheca (Trebouxiophyceae, Chlorophyta) and related taxa inferred from SSU and LSU ribosomal DNA partial sequence data. FEMS Microbiol Lett 2003; 223:275-80. [PMID: 12829298 DOI: 10.1016/s0378-1097(03)00394-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
All five species in the heterotrophic micro-algal genus Prototheca and their relatives were compared for the extent of nucleotide divergence in the nuclear small-subunit (SSU) and in the 5' end of large-subunit (LSU) ribosomal RNA genes (rDNAs). Phylogenetic analysis based on combined SSU and LSU rDNA sequence alignment was implemented with the neighbor-joining, the maximum-parsimony, and the maximum-likelihood methods. The relationships among the species of Prototheca based on this data set were largely concordant with those inferred from SSU or LSU rDNA sequences alone. The obtained phylogenetic trees indicated that P. stagnora and P. ulmea should be regarded as different species and that both of the species as well as P. moriformis were placed in a cluster represented by P. zopfii, whereas P. wickerhamii was not directly grouped together with the other members of Prototheca and was more closely related to the autotrophic alga Auxenochlorella protothecoides. Therefore, the genus Prototheca is paraphyletic in its present circumscription; and these conclusions lead us to propose the transfer of P. wickerhamii to Auxenochlorella or to a new genus. On the basis of nucleotide sequence similarities, unlike SSU rDNA, the LSU rDNA region examined in this study appeared to be variable in recognizing a heterogeneity within a single species P. zopfii, which had been shown earlier in a chemotaxonomic study.
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Affiliation(s)
- Ryohei Ueno
- Department of Food Science and Technology, Tokyo University of Fisheries, Konan, Minato, Japan
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