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Ruegeria sp. TM1040

Ecology and Physiology

Some Roseobacter species have developed close associations with dinoflagellates and phytoplankton (Alavi et al. 2001, Miller and Belas 2003), and these interactions may influence both the rate of primary production and the fate of fixed carbon in the surface ocean. Ruegeria sp. TM1040 was isolated from the phycosphere of the dinoflagellate Pfiesteria piscicida cell (Miller and Belas 2004). Axenic cultures of P. piscicida grow poorly (and ultimately die), while adding back TM1040 restores normal growth. The Pfiesteria/TM1040 association is the only known "obligate" association between a dinoflagellate and a culturable bacterium. Additionally, TM1040 metabolizes the dinoflagellate secondary metabolite dimethylsulfoniopropionate (DMSP) via demethylation to methylmercaptopropionic acid (MMPA). Studies of the TM1040 genome will lead to better understanding of the cellular, physiological, and molecular strategies of this environmentally significant prokaryote and improve the understanding of the ecological interactions between bacteria and eukaryotic partner cells.

For NCBI Genome Page, click here.

General features of the Ruegeria sp. strain TM1040
Total number of coding sequences 3,864
G + C content (%) 60.0
No. of rRNA operons 5
No. of replicons 3
Molecule length by replicon (bp)  
Main chromosome 3,201,640
Megaplasmid 823,032
Plasmid 131,885
No. of coding sequences  
Main chromosome 3,013
Megaplasmid 747
Plasmid 103
G + C content by replicon (%)  
Main chromosome 60.4
Megaplasmid 59.3
Plasmid 55.3
No. of rRNA operons by replicon  
Main chromosome 1
Megaplasmid 3
Plasmid 1
Sequence status Completed

Department of Energy

Roseobacter Genomes

   Celeribacter baekdonensis B30

   Citreicella SE45

   Citreicella sp. 357

* Dinoroseobacter shibae DFL 12

* Jannaschia sp. CCS1

   Leisingera aquimarina DSM 24565

   Leisingera nanhaiensis NH52F

   Loktanella hongkongensis DSM 17492

   Loktanella sp. SE62

   Loktanella vestfoldensis DSM 16212

* Loktanella vestfoldensis SKA53

* Maritimibacter alkaliphilus HTCC2654

* Oceanibulbus indolifex HEL45

* Oceanicola batsensis HTCC2597

* Oceanicola granulosus HTCC2516

   Oceanicola sp. S124

   Oceaniovalibus guishaninsula JLT2003

* Octadecabacter arcticus 238

* Octadecabacter antarcticus 307


* Pelagibaca bermudensis HTCC2601

   Phaeobacter arcticus DSM 23566

   Phaeobacter caeruleus 13

   Phaeobacter daeponensis TF-218

* Phaeobacter gallaeciensis ANG1

* Phaeobacter gallaeciensis DSM17395 (BS107)

* Phaeobacter gallaeciensis 2.10

   Phaeobacter inhibens T5

* Phaeobacter sp. Y4I

   Rhodobacterales bacterium KLH11

* Rhodobacterales bacterium HTCC2083

   Rhodobacterales bacterium HTCC2150

* Rhodobacterales bacterium HTCC2255

* Roseobacter denitrificans OCh 114

* Roseobacter litoralis Och 149

* Roseobacter sp. AzwK-3b


* Roseobacter sp. CCS2

* Roseobacter sp. GAI101

   Roseobacter sp. LE17

* Roseobacter sp. MED193

   Roseobacter sp. R2A57

* Roseobacter sp. SK209-2-6

* Roseovarius nubinhibens ISM

* Roseovarius sp. TM1035

* Roseovarius sp. 217

   Ruegeria lacuscaerulensis ITI-1157

* Ruegeria pomeroyi DSS-3

* Ruegeria sp. TM1040

   Ruegeria sp. Trich CH4B

   Ruegeria sp. TW15

* Ruegeria sp. R11

* Sagittula stellata E-37

* Sulfitobacter sp. EE-36

* Sulfitobacter NAS-14.1

   Thalassiobium R2A62

   Wenxinia marina DSM 24838

* Genomes available in GBrowse

Completed Genomes

Dinoroseobacter shibae DFL 12 Roseobacter denitrificans OCh 114
Jannaschia sp. CCS1 Ruegeria pomeroyi DSS-3
Phaeobacter gallaeciensis 2.10 Ruegeria sp. TM1040
Phaeobacter gallaeciensis DSM17395 (BS107)  

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Marine Sciences
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