proteobacteriumn.

Brit.

/ˌprəʊtɪəʊˌbakˈtɪərɪəm/, U.S.

/ˈˌproʊdioʊˌbækˈtɪriəm/

Inflections: Plural proteobacteria.

Origin: A borrowing from Latin. Etymon: Latin Proteobacteria.

Etymology: Originally as plural proteobacteria < scientific Latin Proteobacteria, class name (see quot. 1988) < the name of Proteus (see Proteus n.) + bacteria , plural of bacterium bacterium n., so called in allusion to the diversity of these bacteria.

Microbiology.

In form Proteobacteria, with plural agreement: a very large group of Gram-negative bacteria, defined on the basis of ribosomal RNA sequencing, which exhibit great diversity in morphology, metabolism, and life style. Also: (in form proteobacterium) a bacterium of this group.The Proteobacteria include purple bacteria, enteric bacteria such as Escherichia, myxobacteria, intracellular symbionts and pathogens, etc.

ΚΠ

1988 E. Stackebrandt et al. in Internat. Jrnl. Systematic Bacteriol. 38 321 Proteobacteria classis nov. is suggested as the name for a new higher taxon to circumscribe the α, β, γ, and δ groups that are included among the phylogenetic relatives of the purple photosynthetic bacteria and as a suitable collective name for reference to that group.

1992 Science 1 May 626/1 Any cell capable of engulfing a proto-mitochondrial proteobacterium could also swallow a protochloroplastic cyanobacterium.

1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) i. 49 Photosynthesis is an essentially anaerobic process, and none of the proteobacteria (Phylum B-3) can carry it out when they are exposed to oxygen.

2003 Nature 27 Nov. 391/2 Eukarya appear to have derived a number of energy-related enzymes by gene transfer from Bacteria, probably by the wholesale incorporation of proteobacteria as so-called endosymbionts.

This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022).

单词	proteobacterium
释义	proteobacteriumn. Brit. /ˌprəʊtɪəʊˌbakˈtɪərɪəm/, U.S. /ˈˌproʊdioʊˌbækˈtɪriəm/ Inflections: Plural proteobacteria. Origin: A borrowing from Latin. Etymon: Latin Proteobacteria. Etymology: Originally as plural proteobacteria < scientific Latin Proteobacteria, class name (see quot. 1988) < the name of Proteus (see Proteus n.) + bacteria , plural of bacterium bacterium n., so called in allusion to the diversity of these bacteria. Microbiology. In form Proteobacteria, with plural agreement: a very large group of Gram-negative bacteria, defined on the basis of ribosomal RNA sequencing, which exhibit great diversity in morphology, metabolism, and life style. Also: (in form proteobacterium) a bacterium of this group.The Proteobacteria include purple bacteria, enteric bacteria such as Escherichia, myxobacteria, intracellular symbionts and pathogens, etc. ΚΠ 1988 E. Stackebrandt et al. in Internat. Jrnl. Systematic Bacteriol. 38 321 Proteobacteria classis nov. is suggested as the name for a new higher taxon to circumscribe the α, β, γ, and δ groups that are included among the phylogenetic relatives of the purple photosynthetic bacteria and as a suitable collective name for reference to that group. 1992 Science 1 May 626/1 Any cell capable of engulfing a proto-mitochondrial proteobacterium could also swallow a protochloroplastic cyanobacterium. 1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) i. 49 Photosynthesis is an essentially anaerobic process, and none of the proteobacteria (Phylum B-3) can carry it out when they are exposed to oxygen. 2003 Nature 27 Nov. 391/2 Eukarya appear to have derived a number of energy-related enzymes by gene transfer from Bacteria, probably by the wholesale incorporation of proteobacteria as so-called endosymbionts. This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1988
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