Tuesday, September 11, 2007

Lab Demo:9/11, Rhizobium leguminosarum

Nitrogen fixing bacteria in legume root tissue.

Questions:
  • Is this organism symbiotic or non-symbiotic N-fixer?
  • Name two legumes that supports the growth of this organism.
  • What enzyme is responsible for nitrogen fixation?
  • Name a non-symbiotic nitrogen-fixing organism.
  • Do these organisms help the farmer with soil nitrogen content?
  • What are NIF genes?

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