Biology 2581B Lecture Notes - Lecture 4: Chloroplast Dna, Intracellular Parasite, Chlorarachniophyte
11 Feb 2016
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Document Summary
Non-photosynthetic eukaryote engulfing a photosynthetic occurred once eukaryote has occurred multiple times 2* chloroplasts responsible for most photosynthesis. Has a nucleus, mitochondria, and 2* chloroplast has a genome, no longer photosynthetic, and came from red algae. Use 2* chloroplast as a drug target. Endosymbiotic gene transfer and loss has gone to completion. Mitosome has electron transport, but lost ox phos (parasites. Has happened multiple times independently trichomonas and don"t need it) 2: polytomella free-living green alga that can no longer perform photosynthesis. Lost ability to photosynthesize lost chloroplast genes now chloroplasts used as storage vacuoles. 2: rafflesia has largest flower, smells like puke. Became parasitic sucks up nutrients from the ground (from other organisms) No need to photosynthesize lost chloroplast genome. 4: incomplete genetic integration of endosymbiont nuclear genome into host nuclear genome nucleomorph with reduced genome. Non-photosynthetic eukaryote engulfed a green or red alga respectively convergent evolution other algae on tree of life.
