Isolate & Grow Bacteria (Leaving Cert Agricultural Science): Flashcards
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Name of bacteria isolated from clover nodules
Name of bacteria isolated from clover nodules
Rhizobium bacteria
Location of Rhizobium on legume roots
Location of Rhizobium on legume roots
Root nodules
Process demonstrated by Rhizobium
Process demonstrated by Rhizobium
Nitrogen fixation
What Rhizobium converts into
What Rhizobium converts into
Ammonia ()
Colour of active root nodules
Colour of active root nodules
Pink or reddish
Protein causing pink colour in nodules
Protein causing pink colour in nodules
Leg-haemoglobin
Incubation temperature for Rhizobium
Incubation temperature for Rhizobium
25-28°C
Expected Rhizobium colony appearance
Expected Rhizobium colony appearance
Small, white, circular
Four main steps of isolation method
Four main steps of isolation method
Sterilise → crush → streak → incubate
Agricultural benefit of N fixation
Agricultural benefit of N fixation
Reduces need for artificial fertilisers