Table 2.

Frequency and phylogenetic affiliations of North Sea isolatesa

Phylogenetic groupNo. (%) of isolatesNext relative to isolatesb% 16S rRNA similarity
Bacteria145 (100)
Cyt/Flac 9 (6.2)
Flexibacter 2 Cytophaga marinoflava M58770 98.0
2Marine bacterium strain E110 AF052742 96.0
2 C. uliginosa M28238 93.6
1 Melosira-colonizing bacterium strain IC16697.3
1 Flavobacterium salegenes M92279 92.7
Cytophaga johnsonae 1 Flavobacterium columnare M58781 96.2
High GC, gram positive1 (0.7)
Arthrobacter 1 Micrococcus luteus M38242 99.3
α-Proteobacteria 11 (7.6)
Roseobacter 8
  Group A7 R. algicola 94.0
  Group B1Unidentified alpha proteobacterium strain AF022392 95.7
Sphingomonas 3 Sphingomonas sp.U85838 93.5
ɛ-Proteobacteria 2 (1.4)
Arcobacter 2 A. nitrofigilis L14627 98.6
γ-Proteobacteria 122 (84.1)
Pseudoalteromonas 29 P. atlantica X82134 99.7
Vibrio 15 V. splendidus Z31659 99.0
Alteromonas 18
  Group A10 A. macleodii X82145 97.8
  Group B8 Colwellia psychroerythrus AB011364 94.5
Oceanospirillum 9 O. commune ATCC 2711895.7
 NOR12Unculturable Mariana eubacterium clone D87345 98.6
 NOR231
  Group A22Facultative barophile strain CNTP3 U91588 95.6
  Group B9 Pseudoalteromonas haloplanktis D11172 92.9
 NOR32Unidentified gamma proteobacterium clone AB004573 94.0
 NOR41Clone of aggregate 47L10949 87.0
Marinobacter 4 Marinobacter sp. strain PCOB-2 AJ000647 98.1
Halomonas 9 H. variabilis U85873 98.2
Photobacterium 1 Photobacterium sp. strain SS9 U91586 95.2
Shewanella 1 S. putrefaciens U91593 96.1
  • a Obtained in September and November 1997 and February and August 1998.

  • b In the ARB database.

  • c Cytophaga-Flavobacterium cluster.