Table 1.

Characteristics of Thalassospira sp. strain EM cultivated in phosphate-depleted ASWGluNYE medium and phosphate-replete ASWGluNPYE mediuma

Time (h)OD580Total cell count/ml (108)CFU/ml (107)Mean swimming speed (μm·s−1)Protein content (μg·ml−1)Cellular protein content (fg·cell−1)Motile cells (%)
+P−P+P−P+P−P+P−P+P−P+P−P+P−P
00.0020.001NDNDNDNDNDNDNDNDNDNDNDND
3.00.0040.0040.018 (0.013)0.021 (0.017)0.014 (0.003)0.015 (0.0012)35.1 (11.2)41.1 (12.8)NDNDNDND87.2 (0.4)89.0 (2.5)
21.80.3070.1878.2 (1.4)5.2 (0.83)7 (0.63)3.6 (0.25)45.1 (14.9)39.4 (14.2)58.7 (11.7)22.1 (10.0)71.6 (18.8)42.5 (20.4)82.9 (1.7)85.1 (0.3)
26.00.4600.2538.0 (1.6)7.9 (1.9)ND3.1 (0.99)51.4 (15.9)41.4 (14.1)78.9 (11.8)71.5 (23.6)98.6 (24.6)90.5 (37.0)83.4 (4.5)84.2 (0.8)
52.52.480.78529 (4.4)11 (1.9)28 (17)11 (4.8)42.4 (11.0)38.3 (9.6)228 (66.2)109 (47.9)78.6 (25.8)99.1 (46.8)50.7 (4.1)77.7 (1.8)
74.02.301.2730 (4.8)8.5 (1.5)16 (6.6)2.2 (0.62)62.6 (19.4)62.2 (14.3)294 (209)172 (56.9)98.0 (71.4)202.4 (75.9)37.3 (11.3)46.5 (2.5)
170.82.081.86NDNDNDNDNDND361 (25.2)190 (56.9)NDNDNDND
287.52.022.1231 (5.3)12 (1.8)26 (4.2)19 (0.19)60.1 (14.4)53.8 (12.9)281 (135)205 (85.9)90.6 (46.2)170.8 (76.0)27.3 (10.3)42.5 (1.8)
  • a Standard deviations are given in parentheses. OD580, optical density at 580 nm; +P, phosphate-replete medium; −P, phosphate-depleted medium; ND, not determined.