File:DIAGRAM JEON EXPERIMENT- Endosymbiotic Theory Evidence.svg

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English: In 1966 Microbiologist Kwang Jeon conducted an experiment with amoebae communities providing real-life evidence for the endosymbiotic theory.
  1. The single-celled amoebae community was infected by a bacterial infection of x-bacteria.
  2. The x-bacteria caused many of the amoebae to become sick and die. Very few of the amoebae survived the epidemic.
  3. Amoebae surviving the epidemic have x-bacteria living inside their cytoplasm.
  4. Antibiotics were used to kill the x-bacteria inside the remaining amoebae causing the host amoeba to die as well because the amoebae had become dependant on the x-bacteria to survive.
Labels: [1] Amoebae, [2] Nucleos, [3] X-Bacteria, [4] Infected Amoebae, [5] Sick Amoebae, [6] Surviving Amoebae, [7] Add Antibiotic

References:

  1. Understanding Evolution Team. "It Takes Teamwork: How Endosymbiosis Changed Life on Earth." Understanding Evolution. Berkeley, n.d. Web. 19 May 2016. <http://evolution.berkeley.edu/evolibrary/article/endosymbiosis_01>.
  2. Understanding Evolution Team. "From Prokaryotes to Eukaryotes." Understanding Evolution. Berkeley, n.d. Web. 19 May 2016 <http://evolution.berkeley.edu/evolibrary/article/_0/endosymbiosis_03>.
  3. Jeon, KW; Lorch, IJ (October 1967). "Unusual intra-cellular bacterial infection in large, free-living amoebae.". Experimental cell research 48 (1): 236-40. DOI:10.1016/0014-4827(67)90313-8. PMID 4168507.
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Author Marabouchoklad

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