TABLE 1.

Summary of characteristics of strain YK-1

ParameterValuea for strain:
YK-1CVObT. denitrificansc
MorphologyCurved rodCurved rodVibroid or spiral
Width (μm)0.40.40.3
Length (μm)1 to 20.6 to 0.8Variable
Spore
Motility+±d
Gram stain
Oxidase test++NDe
Catalase testND
Growth temperature (°C)10 to 35 (25f)5 to 3522f
Growth pH6.0 to 8.0 (7.0f)5.5 to 8.57.0f
NaCl range (%)0 to 1.00 to 7.03f
Carbon source
    CO2 or bicarbonate+++
    Acetate+ND
    Glucose, octane, toluene and benzeneND
Fermentative growthghND
Aerobic growthgij
Microaerobic growth (1% O2)
    HS+++
    S2O32−+ND+
    S0++ND
    H2+NDND
Anaerobic growth on NO3 by oxidation of:
    HS+++
    S2O32−++
    S0++ND
    H2+
    Organic compoundsgkl
Denitrification product from NO3 by oxidation of HSNO2NO2, N2O, N2ND
End product from HS oxidationSO42−SO42−, S0mND
Anaerobic growth on NO2 by oxidation of:
    HS++
    S2O32−ND+
    S0+ND
    H2NDND
  • a +, positive; −, negative.

  • b Data are cited from reference 3.

  • c Data are cited from reference 7.

  • d Nonmotile or weakly motile.

  • e ND, not determined.

  • f A value for the optimum growth.

  • g Substrates tested were described in the Materials and Methods section.

  • h Substrates tested included pyruvate, succinate, lactate, fumarate, malate, and aspartate.

  • i Substrates tested included S2O32−, S0, acetate, succinate, lactate, fumarate, malate, formate, pyruvate, glucose, and glycerol.

  • j Substrate tested included thiosulfate, lactate, and glucose.

  • k Substrates tested included formate, acetate, propionate, pyruvate, succinate, fumarate, lactate, and glucose.

  • l A substrate tested was glucose.

  • m The end product changes according to the initial HS concentration.