Fig. 3
From: Biosynthesis of selenium nanoparticles by Azoarcus sp. CIB
Selenite reduction by Azoarcus cells growing in the presence of DNP. a Time course of the anaerobic growth of Azoarcus and selenite removal from the growth medium supplemented with DNP. b Cultures flasks of CIB cells grown without DNP (-DNP) or supplemented with DNP (+DNP) at the exponential phase of growth after 24 h or 7 days of incubation, respectively. c TEM (thin section) of Azoarcus cultures collected at the exponential phase of growth. The red arrow indicates the presence of a SeNP deposited in the bacterial cytoplasm