TABLE 1.

Summary of “Ca. Thioglobus autotrophicus” strain EF1 cell size and sulfur storage measurements and CHN analyses^a

“Ca. Thioglobus autotrophicus” characteristic	Data by condition
	Anoxic (nitrate)	Oxic (oxygen)
Cell diam (μm)b	0.462 ± 0.03	—c
Cell vol (μm3)	0.056 ± 0.01	0.22 ± 0.22
Cytoplasmic vol (μm3)	0.039 ± 0.01	0.1 ± 0.11
Sulfur globule diam (μm)	0.156 ± 0.01	0.36 ± 0.16
Sulfur globule vol (μm3)	0.002 ± 0.001	0.031 ± 0.002
Carbon content/cell (fg)d	9.92 ± 0.63	32.2 ± 1.21
Nitrogen content /cell (fg)	2.29 ± 0.22	9.33 ± 0.47
Hydrogen content /cell (fg)	0.11 ± 0.01	1.67 ± 0.03

^aAll growth experiments were conducted in triplicate using filter-sterilized seawater media amended with thiosulfate as the electron donor and with nitrate or oxygen as the electron acceptor.

^bCryo-EM measurements.

^c—, polymorphic cells.

^dCHN analyses (unit fg = 10⁻¹⁵ g).