Table 1.

Number of colonies observed after a 24-h inoculation at 37 °C on Caulobacter medium of Gemmata sp. mock-infected blood in EDTA and heparin tubes

	Gemmata massiliana EDTA tubes			Gemmata massiliana Heparin tubes			Gemmata obscuriglobus EDTA tubes			Gemmata obscuriglobus Heparin tubes
Initial concentration (bacteria/mL)	102	103	104	102	103	104	102	103	104	102	103	104
Culture results (CFU/mL)	0	0	200	0	0	320	0	90	300	70	270	420
	0	0	0	0	0	0	0	170	450	70	180	570
	0	0	480	0	0	0	†	0	400	20	410	550
	0	0	250	0	0	980	30	†	380	0	50	500

No colony was observed for an initial concentration of 10¹ bacteria/mL

CFU, colony-forming unit; †, contaminated