Table 1 Bacterial strains used in this study

Y . ruckeri

150

I

+

Isolated during outbreaks of ERM disease in Denmark

J.L. Larsen, University of Frederiksberg (Denmark)

150 acrA

I

+

acrA::mini-Tn5 Km2 Kmr

This study

150 yraS

I

-

yraS::mini Tn5 Km2 Kmr

This study

150 yraS+

I

+

150 yraS harboring pGBM5-yraS

This study

146,147,148,149

I

+

Isolated during outbreaks of ERM disease in Denmark

J.L. Larsen, University of Frederiksberg (Denmark)

955

I

+

Trout-isolated strain

CECT (Spanish Type Culture Collection)

956

II

-

Trout-isolated strain

CECT (Spanish Type Culture Collection)

43/19

I

-

Trout-isolated strain

CECT (Spanish Type Culture Collection)

956 yraS+

II

+

956 harboring pGBM5-yraS

This study

35/85*

I

+

Isolated from Salmo gairdneri in Denmark

C.J. Rodgers (University of Tarragona, Spain)

13/86*

I

+

Isolated from Salmo gairdneri in England

C.J. Rodgers (University of Tarragona, Spain)

A100, A102,

I

+

Trout-isolated strain

I. Márquez (SERIDA, Spain)

150/05,158/05,382/05

I

+

Trout-isolated strain

Proaqua Nutrition S.A.

137/76*,138/76*

I

+

Trout-isolated strain

C.J. Rodgers (University of Tarragona, Spain)

NCTC 10478*

I

+

Isolated from S. gairdneri in USA

C.J. Rodgers (University of Tarragona, Spain)

NCMB 1315*

NT

-

Isolated from S. gairdneri in USA

C.J. Rodgers (University of Tarragona, Spain)

NCMB 1316*

I

-

Isolated from S. gairdneri in USA

C.J. Rodgers (University of Tarragona, Spain)

Yr.V187/09/115*

I

-

Isolated from S. salar in Norway

C.J. Rodgers (University of Tarragona, Spain)

Yr.V187/09/700*

II

-

Trout-isolated strain

C.J. Rodgers (University of Tarragona, Spain)

ATCC 29473*

I

-

Isolated from S. gairdneri in USA

C.J. Rodgers (University of Tarragona, Spain)

RD38*

I

+

Trout-isolated strain

R.L. Davies, University of Stirling (Scotland)

AL 3017

NT

-

Trout-isolated strain

M.D. Furones, IRTA (Tarragona)

E . coli

DH5αλpir

NT

NT

F'/endA1 hsdR17 (rk-mk+) supE44 thi-1 recA1 gyrA (NalR) λ (pir)

[30]

S17-1λpir

NT

NT

λ (pir) hsdR pro thi, RP4-2 Tc::Mu Km::Tn7

[31]