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. 2010 May 28;10:155. doi: 10.1186/1471-2180-10-155

Table 2.

Comparison of M9 medium and defined artificial seawater medium (DASW) with respect to four main components tested

Component M9 medium* Enriched M9 medium (this study) DASW#
NaCl 9 mM 259 mM 234 mM

HEPES 0 mM 50 mM 50 mM

MgSO4 2 mM 32 mM 27.5 mM

CaCl2 0.1 mM 5.1 mM 4.95 mM

* Sigma; supplemented as recommended by the manufacturer

# As published [8,9]