Table 1

Growth parameters of batch and continuous cultures of Prochlorococcus marinus PCC9511 grown under a 12 h/12 h light/dark cycle under HL supplemented or not with UV radiations.

Batch Cultures

Continuous Cultures



Growth parameters*

HL

HL+UV

HL

HL+UV


μcc (d-1)

0.67 ± 0.05

0.68 ± 0.03

0.69 ± 0.09

0.66 ± 0.04

μnb (d-1)

0.60 ± 0.13

0.62 ± 0.11

n.a.

n.a.

TG1 (h)

16.8 ± 1.6

18.4 ± 0.8

17.8 ± 2.5

19.0 ± 1.5

TS (h)

4.03 ± 0.30

3.47 ± 0.28

3.71 ± 0.77

3.83 ± 0.49

TG2 (h)

3.97 ± 0.30

2.53 ± 0.28

2.95 ± 0.31

2.51 ± 0.60

Sr

32.4 ± 2.2

24.6 ± 1.1

27.2 ± 1.2

25.0 ± 1.4


Values are averages (± SD) of three consecutive days and two biological replicates

* Growth rates per day calculated from: cell cycle data (μcc) or cell numbers (μnb); TG1, TS, TG2: cell cycle phase duration in hours; Sr: rate of synchronization estimated from the ratio (TS+TG2)/(TG1+TS+TG2)

n.a.: not applicable

Kolowrat et al. BMC Microbiology 2010 10:204   doi:10.1186/1471-2180-10-204

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