A First Analysis of Metallome Biosignatures of Hyperthermophilic Archaea

Table 2

Media volumes and cell pellet data for the NM experiment.

Microorganism	Media volume; (mL)	Cell density; (cells/mL)	Dry cell pellet weight; (g)	Number of cell fractions
E. coli (a)	1000	1.09 × 10^11	0.4392	4
E. coli (an)	1000	7.52 × 10^9	0.0792	4
P. furiosus	1000	2.31 × 10^9	0.0296	4
M. jannaschii	500	3.92 × 10^9	0.0428	1

Cell densities were determined via direct cell counting. Calculation of cell numbers for individual fractions involves the total medium volume and cell density reported above, as well as the number of fractions that the respective pellet was divided into. The dry cell pellet weight was only determined for the acid digest cell fraction. E. coli aerobic Ec (a); E. coli anaerobic Ec (an); P. furiosus; M. jannaschii.