Question: Would bacteria from different environments, such as the
ocean, salt lakes, freshwater streams or …
Would bacteria from different environments, such as the
ocean, salt lakes, freshwater streams or the human intestine, have
a different pattern of growth over the same range of salt
concentration investigated in this experiment?
Show transcribed image text
Table: Mean generation time for Vibrio natriegens grown at different concentrations of Na MGT % NaCl supplemented in broth medium 0.5% 1.0% 3.5% min) 29.9 22.0 37.0 54.2 Effect of salt concentration on growth of Vibrio natriegens Cell Biology Following the measurement of V. natiegens growth amongst four mediums of differing salinity content, it was observed that as the levels of NaCl in the broth increased so too did the growth of bacterium until 1 % NaCl had been reached, after this apparent optimum, the MGT began a sharp increase. This is due to water availability becoming lessened by an influx of salt in the broth, leading to delayed growth in both 3.5% & 7% NaCl mediums, However, in addition to this too little salt and too much water was also seen as unfavorable Therefore, the data above clearly depicts the apparent optimum salt concentration for V. aaneena to be 1% as it yields the fastest MGT (22 minutes) of all four mediums observed