Table 2 Organisms used in this study.

From: The involvement of McpB chemoreceptor from Pseudomonas aeruginosa PAO1 in virulence

Bacteria/Nematodes/Arthropods/Annelids

Genotype, relevant characteristics and usesa

Reference or source

E. coli MC4100

F- araDI39 Δ(argF-lac) U169 rpsL150 relAl flb5301 deoCI ptsF24 rbsR. Used to evaluate the presence of antibiotic compounds in supernatants of PAO1 strains.

56

E. coli OP50

Uracil auxotroph. Used to feed C. elegans.

57

E. coli β2163

KmREmR; F RP4-2-Tc::Mu ΔdapA::(erm-pir).

58

E. coli DH5α

supE44 lacU169 (Ø80lacZΔ M15) hsdR17 (rk-mk-) recA1 endA1 gyrA96 thi-1 relA1.

59

B. cepacia CC-Al74

Wild type. Risk Group 2 bacteria and proposed as plant growth promoting rhizobacteria (PGPR). Used as a pathogenic control in virulence assays.

60

P. putida KT2440

Wild type; Risk Group 1 bacteria and PGPR. Used as negative control in virulence assays.

61

V. fischeri ATCC 49387

Wild type; Used as bioluminescent strain in MicroTox® assays.

62

P. aeruginosa PAO1

Wild type pathogenic strain.

9

P. aeruginosa ΔmcpB

In-frame deletion mutant in mcpB (1116 bp Δ).

This study

C. elegans Bristol strain N2

Nematode used in virulence assays. Provided by the Laboratory of Nematology, National Museum of Nature Sciences-CSIC (Madrid, Spain)

Navas et al., 2007

A. bipunctata

Arthropod used in virulence assays. Supplied by ControlBio Co. (Almería, Spain).

Ref. CBi K04884

C. carnea

Arthropod used in virulence assays. Supplied by ControlBio Co. (Almería, Spain).

Ref. CBi 124 K04280

E. foetida

Annelid used in virulence assays. Supplied by Lombriventa (Gerona, Spain).

63

D. magna

Crustacean used in virulence assays. Supplied by Daphtoxkit™ (Creasel, Belgium).

64