Table 1.

TonB system specificities for siderophore transport.

Species	Siderophores produced	Siderophores used	TonB system used	Ref.
Vibrio anguillarum	Anguibactin	Anguibactin	TonB2	[27]
	Vanchrobactin	Vanchrobactin	TonB2	[58]
		Enterobactin	TonB2	[27]
		Ferrichrome	TonB1 and 2	[27]
		Hemin	TonB1	[27]
Vibrio cholerae	Vibriobactin	Vibriobactin	TonB1 and 2	[29]
		Enterobactin	TonB2	[29]
		Agrobactin	Unknown	[59]
		Fluvibactin	Unknown	[60]
		Ferrichrome	TonB1 and 2	[29]
		Hemin	TonB1 and 2	[29]
Vibrio vulnificus	Vulnibactin	Vulnibactin	TonB1 and 2	[Alice, Unpublished Data] [61]
	Hydroxamate type	Hydroxamate-type	TonB1 and 2	[Alice, Unpublished Data] [62]
		Aerobactin	Unknown	[63]
		Hemin	TonB1 and 2	[35]
Vibrio parahaemolyticus	Vibrioferrin	Vibrioferrin	Unknown	[64]
		Ferrichrome	Unknown	[64]
		Aerobactin	Unknown	[64]
		Hemin	Unknown	[36]
Vibrio alginolyticus	Vibrioferrin	Vibrioferrin	TonB1 and 2	[34]
		Ferrichrome	TonB1 and 2	[34]
		Hemin	TonB1	[34]