Table 1.

Aeromonas veronii colonization mutants.

Functional category	Strain(s)	Predicted function of disrupted or identified locus	Competition Defect	Reference
Complement resistance	> 30 isolates	Multiple loci	+, ++, +++	Silver et al., 2007b
Oxidative stress response	JG186	(KatA)	–	Rio et al., 2007
Surface modification	JG535	Glycosyltransferase, type 1 capsular polysaccharide synthesis	+++	Silver et al., 2007b
	JG730 JG736	Murein lipoprotein (lpp)	+++	Silver et al., 2007b
	JG735	3-deoxy-D-manno-octulosonic-acid transferase	+++	Silver et al., 2007b
	JG738	Polysaccharide synthesis protein/Glycosyltransferase (WbbB)	++	Silver et al., 2007b
Regulatory	JG547	Ribosomal operon	+	Silver et al., 2007b
	JG697	GTPase (YchF)	++	Silver et al., 2007b
	JG741	RNase II	+	Silver et al., 2007b
Nutrition	JG537	Phosphate ABC transporter (PstC)	++	Silver et al., 2007b
	JG698	ZIP family metal transporter (ZupT)	+	Silver et al., 2007b
	JG750	Threonine/serine transporter (TdcC)	++	Silver et al., 2007b
Host interaction	JG752	T3SS apparatus (AscU)	++	Silver et al., 2007a
	JG573	T6SS effector, Rearrangement hotspot protein (Rhs)	+++	Silver et al., 2007b
	HE-1095	T2SS apparatus (ExeM)	+	Maltz and Graf, 2011
Unknown	JG521 JG523 JG538	Hypothetical proteins	+	Silver et al., 2007b
	JG532	MBL-fold metallo-hydrolase domain containing protein	+	Silver et al., 2007b
	JG533	KAP family P-loop NTPase protein	+	Silver et al., 2007b
	JG751	Intergenic region; upstream of predicted GTPase	+	Silver et al., 2007b
	JG753	Intergenic region; upstream of hypothetical protein	+	Silver et al., 2007b

Competition defect of Aeromonas isolates in the leech crop relative to the parent strain is indicated as follows: –, no colonization deficiency; +, 2–10 fold deficiency; ++, 10–100 fold deficiency; +++, >100 fold deficiency.