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Table 2 Growth parameters of PCC9511 batch cultures shifted from LL to HL during 12 h/12 h L/D cycles.

From: Ultraviolet stress delays chromosome replication in light/dark synchronized cells of the marine cyanobacterium Prochlorococcus marinus PCC9511

Growth Parameters*

Cycle 1 (LL)

Cycle 2 (HL)

Cycle 3 (HL)

μcc (d-1)

0.43 ± 0.03

0.67 ± 0.01

0.62 ± 0.01

μnb (d-1)

0.37 ± 0.04

0.59 ± 0.09

0.58 ± 0.05

TG1 (h)

30.8 ± 3.1

16.7 ± 0.3

18.8 ± 0.2

TS (h)

4.12 ± 0.01

5.15 ± 0.14

5.53 ± 0.12

TG2 (h)

3.89 ± 0.01

2.85 ± 0.14

2.47 ± 0.12

Sr

20.8 ± 1.7

32.4 ± 0.4

29.8 ± 0.3

  1. Values shown are averages (± mean deviation) of two biological replicates
  2. * 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)