M020_454
Member of clade III that has unique photophysiology and pigment composition
<b><i>Prochlorococcus marinus </i>str. MIT 9211</b>. This strain was isolated from the equatorial Pacific at a depth of 83 meters by filter fractionation. MIT9211 is the type strain of the high B/A III (LLII) clade, and makes up a small but significant fraction of the population. It is unique among <i>Prochlorococcus</i> in its photophysiology and pigment composition.