The unique aromatic catabolic genes in sphingomonads degrading polycyclic aromatic hydrocarbons(PAHs).
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- Pinyakong Onruthai
- Biotechnology Research Center, The University of Tokyo
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- Habe Hiroshi
- Biotechnology Research Center, The University of Tokyo
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- Omori Toshio
- Biotechnology Research Center, The University of Tokyo
書誌事項
- 公開日
- 2003
- 資源種別
- journal article
- DOI
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- 10.2323/jgam.49.1
- 公開者
- 公益財団法人 応用微生物学・分子細胞生物学研究奨励会
この論文をさがす
説明
Many members of the sphingomonad genus isolated from different geological areas can degrade a wide variety of polycyclic aromatic hydrocarbons (PAHs) and related compounds. These sphingomonads such as Sphingobium yanoikuyae strain B1, Novosphingobium aromaticivorans strain F199, and Sphingobium sp. strain P2 have been found to possess a unique group of genes for aromatic degradation, which are distantly related with those in pseudomonads and other genera reported so far both in sequence homology and gene organization. Genes for aromatics degradation in these sphingomonads are complexly arranged; the genes necessary for one degradation pathway are scattered through several clusters. These aromatic catabolic gene clusters seem to be conserved among many other sphingomonads such as Sphingobium yanoikuyae strain Q1, Sphingomonas paucimobilis strain TNE12, S. paucimobilis strain EPA505, Sphingobium agrestis strain HV3, and Sphingomonas chungbukensis strain DJ77. Furthermore, some genes for naphthalenesulfonate degradation found in Sphingomonas xenophaga strain BN6 also share a high sequence homology with their homologues found in these sphingomonads. On the other hand, protocatechuic catabolic gene clusters found in fluorene-degrading Sphingomonas sp. strain LB126 appear to be more closely related with those previously found in lignin-degrading S. paucimobilis SYK-6 than the genes in this group of sphingomonads. This review summarizes the information on the distribution of these strains and relationships among their aromatic catabolic genes.
収録刊行物
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- The Journal of General and Applied Microbiology
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The Journal of General and Applied Microbiology 49 (1), 1-19, 2003
公益財団法人 応用微生物学・分子細胞生物学研究奨励会