TABLE 3.

Bacterial numbers in dilution cultures from Lake Kinneret, the Mediterranean Sea, and the Gulf of Eilat

ExptTreatmentNo. of replicatesYield (105 cells ml−1)aCFU (105 ml−1 mean ± SD)% CFU (% of yield)Growth rate (day−1, mean ± SD)b
DAPI countsCFU
KIN1Control22.820.61 ± 0.0521.60.83 ± 0.051.20 ± 0.10
KIN2Control33.370.41 ± 0.0512.20.24 ± 0.02c1.08 ± 0.07
+P212.313.94 ± 1.0632.00.66 ± 0.05
KIN3Control310.102.10 ± 0.4820.80.87 ± 0.051.89 ± 0.20
KIN4Control34.781.05 ± 0.2122.00.95 ± 0.081.62 ± 0.02
+P25.221.06 ± 0.1720.40.97 ± 0.08
+C+P214.6612.02 ± 1.0882.01.99 ± 0.03
KIN5Control24.520.86 ± 0.2719.10.56 ± 0.021.51 ± 0.03
KIN6Control25.002.30 ± 0.2546.00.29 ± 0.03c2.04 ± 0.07
+P222.8017.1 ± 1.5174.90.73 ± 0.122.22 ± 0.09
KIN7Control23.720.79 ± 0.1821.30.37 ± 0.05c1.07 ± 0.09
MED1Control36.340.17 ± 0.032.71.33 ± 0.072.22 ± 0.19
MED2Control212.300.27 ± 0.032.21.72 ± 0.051.43 ± 0.11
+C+P222.306.15 ± 0.3627.61.54 ± 0.032.35 ± 0.14
GULF1Control29.430.55 ± 0.105.82.54 ± 0.140.94 ± 0.10
GULF2Control24.430.65 ± 0.1414.71.70 ± 0.071.46 ± 0.10
+C26.231.60 ± 0.1425.72.06 ± 0.072.88 ± 0.14
+C+P218.617.89 ± 1.8642.42.54 ± 0.033.32 ± 0.22
  • a Net increase in number of cells.

  • b The growth rates in dilution cultures were calculated from the increases in total bacterial numbers (DAPI counts) and CFU during exponential growth.

  • c Growth was not exponential.