TABLE 1.

Strains used in this study

M. marinum strain	Genotype	Reference or source
M	Wild-type M. marinum	ATCC
1663::Tn::1664 strain	M strain bearing a transposon insertion between the MMAR_1663 and MMAR_1664 genes	This study
1663::Tn::1664/p′1663–1668 strain	Complemented; transposon insertion strain bearing an episomal plasmid carrying the C-terminal half of MMAR_1663 through MMAR_1668	This study
ΔRD1 strain	M strain bearing a genomic deletion including ′eccCb-′espK	41
ΔesxBA strain	M strain bearing a deletion covering the esxB and esxA genes	32