TABLE 1

Summary of bacteria identified to the species level from a 16S rRNA gene-based metagenomic study of a soil-water mixture from a high-altitude lake

PhylumClassOrderFamilySpeciesAbsolute count%
Firmicutes ClostridiaClostridialesClostridiaceaeAlkaliphilus transvaalensisa30.0072
ClostridiaClostridialesPeptostreptococcaceaeClostridium sticklandiib40.0097
ClostridiaClostridialesPeptococcaceaeDesulfosporosinus meridieic280.0680
BacilliBacillalesPlanococcaceaePlanococcus pelagicusd510.1240
Proteobacteria BetaproteobacteriaMethylophilalesMethylophilaceaeMethylotenera mobilise250.0608
GammaproteobacteriaAlteromonadalesOM60Haliea mediterraneaf40.0097
GammaproteobacteriaOceanospirillalesOceanospirillaceaeMarinomonas primoryensisg50.0122
GammaproteobacteriaAlteromonadalesChromatiaceaeRheinheimera perlucidah1380.3355
AlphaproteobacteriaRhodobacteralesRhodobacteraceaeParacoccus marcusiii220.0535
BacteroidetesCytophagiaCytophagalesCyclobacteriaceaeAquiflexum balticumj60.0146
CytophagiaCytophagalesCyclobacteriaceaeRhodonellum psychrophilumk2350.5713
  • a Extremely alkaliphilic.

  • b Anaerobic motile Gram-positive bacterium, nonpathogenic to humans.

  • c Sulfate-reducing bacterium.

  • d Rare isolate.

  • e Methylamine-utilizing bacterium.

  • f Halophile, pale yellow pigmented.

  • g Gram-negative, aerobic, psychrophilic, halophilic, and motile bacterium.

  • h Marine bacterium.

  • i Orange Gram-negative coccus.

  • j Marine bacterium isolated from the Baltic Sea.

  • k A psychrophilic and alkaliphilic bacterium reported in the literature and a pure isolate from soil-water mixture in the current study is reported as Rhodonelum psychrophilum strain GL8 under GenBank accession number MH031708.