UCA_6B_1: Day 1 - OUR LITTLE TOWN OF MICROORGANISMS
Hi! We are Sara and Kenia.
We are biotechnology students at Cadiz Science
university. We are going to explain how our Winogradsky
column develops. Our goal is to create two gradients (one of them is H2S and
the another one is of O2) where different microorganisms will grow.
We have added 30,1 g of mud from Rio San
Pedro to our column and we have mixed it with 0,1 g of CaSO4. This
mix is TO crEate a gradient of SO4.
After that, we have added 0,1 g of NaHCO3
thaT produces CO2 : if the microorganisms are autotroph, they will
make their own nutrients from inorganic carbon.
We have also added 0,1 g of cellulose so these microorganisms can feed themselves,
because cellulose is a polymer of glucose .
we
have put all of them in a cristal tube.
Finally, we have put our column near the
window, so the microorganisms can catch the sunlight and take
advantage of it.
We will see the evolution of the column
during a few months, so we will show you photos of our winogradsky column along
the time.
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