  In this work we present a device specifically designed to study microbial
growth with several applications related to environmental microbiology and
other areas of research as astrobiology. The Automated Measuring and
Cultivation device (AMC-d) enables semi-continuous absorbance measurements
directly during cultivation. It can measure simultaneously up to 16 samples.
Growth curves using low and fast growing microorganism were plotted, including:
Escherichia coli, and Haloferax volcanii, an halophilic archaeon.
