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Table 2 Mean maximum AI-2 activity in Shewanella type strains and isolate DT-1. The peak of AI-2 activity (in % of positive controls) during one complete growth curve is averaged for the indicated number of bioassays. Mean ± standard deviation are given. Strain DT-1 was isolated from the surface of the diatom Thalassiosira sp. that was picked from a plankton sample (170 μm net) collected near the island of Helgoland in the North Sea on 4th April 2002 (depth 0.5 – 1.5 m).

From: Potential for luxS related signalling in marine bacteria and production of autoinducer-2 in the genus Shewanella

Strain Species Peak A1-2 activity [% pos. contr.] no of bio-assays
CCUG 30811T Alishewanella fetalis 24 ± 251) 8
DSM 9167T Shewanella algae 9.1 ± 10 13
LMG 20552T Shewanella fidelis 18 ± 6 8
LMG 18921T Shewanella frigidimarina 7.5 ± 6 6
LMG 19691T Shewanella japonica 46.2 ± 33 4
LMG 21403T Shewanella marinintestina 3.8 ± 3 10
ATCC 700500T Shewanella oneidensis MR-1 9.8 ± 9 10
LMG 21408T Shewanella sairae 34 ± 38 5
LMG 21406T Shewanella schlegeliana 5.8 ± 5 5
DT-12) Shewanella hafniensis 4.3 ± 1 4