Table 1. List of Aeromonas veronii mutants.

Functional Group	Strain ID(s)	Identified defect/mutation	Colonization deficiency*	Reference for strain
Parent/Wild-type Strains	HM21R, HM21RS	-	-	24
Complement Resistance	30+ isolates	Multiple genetic loci	+, ++, +++	59
Oxidative Stress	JG186	katA	-	72
Surface Modification	JG356	Glycosyltransferase	+++	59
	JG736, JG730	lpp	+++	59, Bomar and Graf unpublished
	JG738	Methyltransferase type 11	++	59
Regulatory	JG574	Ribosomal operon	+	59
	JG697	GTP-binding protein	++	59
	JG741	Exoribonuclease II	+	59
Nutrition	JG537	pstC homolog	++	59
	JG698	GufA	+	59
	JG750	Threonine/serine transporter	++	59
Host Interaction	JG752	ascU - Type III secretion system	++	70
	HE-1095	exeM - Type II secretion system	+	69
Unknown Role	JG521, JG573, JG735, JG751	Hypothetical proteins	+, ++, +++	59
	JG532	Conserved hypothetical protein	+	59
	JG533	KAP family P-loop domain protein	+	59
	JG538	Peptidase S15	+	59
	JG523, JG753	No similar BLAST result	+	59

^*Colonization deficiency of leech crop compared with parent/wild-type strain represented as follows: -, no colonization deficiency; +, 2–10 fold deficiency; ++, 10–100 fold deficiency; +++, > 100 fold deficiency