The hierarchical system of the ‘Alphaproteobacteria’: description of Hyphomonadaceae fam. nov., Xanthobacteraceae fam. nov. and Erythrobacteraceae fam. nov.

Lee, Kyung-Bum; Liu, Chi-Te; Anzai, Yojiro; Kim, Hongik; Aono, Toshihiro; Oyaizu, Hiroshi

doi:10.1099/ijs.0.63663-0

Cited by 261 publications

(132 citation statements)

References 78 publications

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“…50 Parvularculaceae KLE1250 shows 93.7% identity by 16S rRNA gene sequence to Parvularcula bermudensis KCTC 1208 T , one of only two initially described isolates 51 that established this putative order and the only examples reported to be cultivated. The apparent rarity of this order may be due to most species being uncultured, rather than an actual scarcity in the environment.…”

Section: Growth Factorsmentioning

confidence: 96%

Uncultured microorganisms as a source of secondary metabolites

et al. 2010

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The vast majority of microbial species are 'uncultured' and do not grow under laboratory conditions. This has led to the development of a number of methods to culture these organisms in a simulated natural environment. Approaches include placing cells in chambers that allow diffusion of compounds from the natural environment, traps enclosed with porous membranes that specifically capture organisms forming hyphae-actinobacteria and microfungi, and growth in the presence of cultivable helper species. Repeated cultivation in situ produces domesticated variants that can grow on regular media in vitro, and can be scaled up for secondary metabolite production. The co-culture approach has led to the identification of the first class of growth factors for uncultured bacteria, iron-chelating siderophores. It appears that many uncultured organisms from diverse taxonomical groups have lost the ability to produce siderophores, and depend on neighboring species for growth. The new cultivation approaches allow for the exploitation of the secondary metabolite potential of the previously inaccessible microorganisms.

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Section: Growth Factorsmentioning

confidence: 96%

Uncultured microorganisms as a source of secondary metabolites

et al. 2010

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“…Phylogenetic trees including the three strains and the type species of representative genera in the nine orders in the class Alphaproteobacteria (Garrity et al, 2005;Lee et al, 2005) were constructed with the neighbor-joining method (Saitou and Nei, 1987) (Fig. 3).…”

Section: Rhizobiales As Well As the Genus Sphingomonas In The Sphingomentioning

confidence: 99%

“…3. Neighbor-joining tree based on 16S rRNA gene sequences including the three novel strains (A48 T , RR25 and RR54) and the type species of representative genera in the nine orders within the class Alphaproteobacteria (Cho and Giovannoni, 2003;Garrity et al, 2005;Kurahashi et al, 2008;Kwon et al, 2005;Lee et al, 2005 Description of Rhizomicrobium gen. nov. Rhizomicrobium (Rhi.zo.mi.cro bi.um. Gr.…”

Section: Rhizobiales As Well As the Genus Sphingomonas In The Sphingomentioning

confidence: 99%

Rhizomicrobium palustre gen. nov., sp. nov., a facultatively anaerobic, fermentative stalked bacterium in the class Alphaproteobacteria isolated from rice plant roots

Ueki

Kodama

Kaku

et al. 2010

J. Gen. Appl. Microbiol.

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“…been revised and expanded by the inclusion of several new genera in recent years (Garrity et al, 2004;Lee et al, 2005), only a small number of these taxa have been described as coming from marine sources (Satomi et al, 2002;Cho & Giovannoni, 2003;Denner et al, 2003;Labbé et al, 2004;Peix et al, 2005). In the present study, we describe a novel taxon within the order Rhizobiales, which was isolated from coastal sediment from an aquaculture site.…”

mentioning

confidence: 74%

Sneathiella chinensis gen. nov., sp. nov., a novel marine alphaproteobacterium isolated from coastal sediment in Qingdao, China

Jordan

Thompson

Zhang

et al. 2007

International Journal of Systematic and Evolutionary Microbiology

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Sneathiella chinensis gen. nov., sp. nov., a novel marine alphaproteobacterium isolated from coastal sediment in Qingdao, China The taxonomic position of strain LMG 23452 T , which was isolated from coastal sediment from an aquaculture site near Qingdao, China, in 2000, was determined. Strain LMG 23452 T comprised Gram-negative, non-spore-forming, motile rods and was found to be a halotolerant, aerobic, chemoheterotroph that produces catalase and oxidase. Comparative 16S rRNA gene sequence analysis revealed that strain LMG 23452 T shared approximately 89 % sequence similarity with members of the genera Devosia, Hyphomonas, Ensifer and Chelatococcus, which belong to two different orders within the Alphaproteobacteria. Further phylogenetic analysis of the 16S rRNA gene sequence showed that strain LMG 23452 T formed a separate branch within the order Rhizobiales, falling between the genera Devosia and Ensifer of the families Hyphomicrobiaceae and Rhizobiaceae, respectively. Strain LMG 23452 T could be differentiated from its closest phylogenetic neighbours on the basis of several phenotypic features, including hydrolysis of the substrates starch and casein and assimilation of the carbohydrates D-glucose, D-mannose, mannitol, maltose and L-arabinose, and chemotaxonomically by the presence of the fatty acids C 14 : 0 3-OH, C 16 : 1 v11c, C 16 : 1 v5c and C 18 : 1 v5c. The major fatty acids detected in strain LMG 23452 T were C 18 : 1 v7c, C 16 : 0 , C 19 : 0 cyclo v8c, C 16 : 1 v7c and C 17 : 1 v6c and the G+C content of the genomic DNA was 57.1 mol%. Therefore, the polyphasic data support the placement of strain LMG 23452 T within a novel genus and species, for which the name Sneathiella chinensis gen. nov., sp. nov. is proposed. The type strain is LMG 23452 T (=CBMAI 737 T ).

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The hierarchical system of the ‘Alphaproteobacteria’: description of Hyphomonadaceae fam. nov., Xanthobacteraceae fam. nov. and Erythrobacteraceae fam. nov.

Abstract: The hierarchical system of the 'Alphaproteobacteria': description of Hyphomonadaceae fam. nov., Xanthobacteraceae fam. nov. and Erythrobacteraceae fam. nov.

Cited by 261 publications

References 78 publications

Uncultured microorganisms as a source of secondary metabolites

Uncultured microorganisms as a source of secondary metabolites

Rhizomicrobium palustre gen. nov., sp. nov., a facultatively anaerobic, fermentative stalked bacterium in the class Alphaproteobacteria isolated from rice plant roots

Sneathiella chinensis gen. nov., sp. nov., a novel marine alphaproteobacterium isolated from coastal sediment in Qingdao, China

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