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Table 1 Concentration of Intracellular polyamine in S. pneumoniae capsule type 3 (WU2, μM) and type 4 (TIGR4, pM) strains

From: The expansive effects of polyamines on the metabolism and virulence of Streptococcus pneumoniae

Growth medium

Strin

Putrescine

Spermidine

Cadaverine

THYa

WU2

0.5 ± 0.04

25.6 ± 0.64

0.3 ± 0.05

CDMb

WU2

1.4 ± 0.08

19.0 ± 1.4

0.7 ± 0.12

THYa

TIGR4

4.1 ± 2.0

14.2 ± 1.2

9.2 ± 1.2

  1. aTodd-Hewitt broth supplemented with yeast extract
  2. bchemically defined medium