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Temperature Affects E. Coli Growth Rate Positively Over Time

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  1. Introduction
  2. E. Coli Growth Rate
  3. Temperature Affects E. Coli Growth Rate Positively Over Time
  4. Materials And Methods
  5. Discussion

Bacteria are prokaryotic organisms where the DNA is held in a nucleoid, which is a non membrane-enclosed organelle. Many people think bacteria are strictly harmful to us, but in fact they coexist to aid in many daily tasks such as digest food or keep our gums healthy. Although we cannot see a bacteria cell with the naked eye, it can reproduce rapidly through binary fission. Binary fission is a method of asexual reproduction by the cell dividing in half. After a certain point, an accumulation of bacteria cells becomes visible to humans without a microscope.

Much research has been done on the effect of different temperatures on the growth rate with bacteria long before this experiment. There was a study conducted about Microbial Oxidation of CH4 at different temperatures in landfill cover soils. Gunnar Börjesson and his team observed that different methanotroph populations in the soil could produce different concentrations of O2 and CH4, temperature, pH, and nitrogen sources. Methanotrophs are bacteria that use CH4 to gain energy and carbon.

[...] Much research has been done on the effect of different temperatures on the growth rate with bacteria long before this experiment. There was a study conducted about Microbial Oxidation of CH4 at different temperatures in landfill cover soils. Gunnar Börjesson and his team observed that different methanotroph populations in the soil could produce different concentrations of O2 and CH4, temperature, pH, and nitrogen sources. Methanotrophs are bacteria that use CH4 to gain energy and carbon. There are two types of these methanotrophs, called Type I and Type II. [...]


[...] Temperature Affects E. Coli Growth Rate Positively Over Time Authors: Megan Crandell, Brittanny Heilmann, Mack Neal, Kristen Beno Abstract: Escherichia Coli that is cultured in the proper environment will reproduce asexually. To see exactly how temperature affects this growth, we prepared, grew, and observed a culture of a strain of E. Coli in C and C. Measuring the absorption of light in the sample of Escherichia Coli will give one an idea of how much bacteria are present. After a 24-hour period of measuring the absorbance, we found that the Escherichia Coli strain stored at a warmer temperature grew faster than the lower temperature. [...]


[...] Börjesson, Gunnar, Ingvar Sundh, Bo Svensson Microbial oxidation of CH4 at different temperatures in landfill cover soils. FEMS Microbiology Ecology, 305-312. Campbell, Neil A., Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Biology, 556-569. Romito, Kathleen, W. David Colby IV E Coli Infection. [...]

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