BIS 2C Lecture Notes - Lecture 12: Kelp Forest, Diatomaceous Earth, Apicomplexa
30 Aug 2016
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Luca traits: ribosomes, 3 letter genetic code, central dogma, amino acids. Eukarya lineage traits: mitochondria, nucleus, membrane-bound organelles. Primary endosymbiosis with cyanobacteria to give rise to chloroplast in. All those with * can do photosynthesis, they do photosynthesis by doing higher level of endosymbiosis. Apicomplexans = internal parasites of animals that use the apical complex to enter host cells. Apicomplexan life cycles are complex and often involve multiple hosts. Ex: when a mouse gets infected by toxoplasma, it changes the behavior of its hosts and mice no longer fear cats. Ex: plasmodium falciparum = most common apicomplexan responsible for malaria. Mosquito and humans are its primary hosts. The apicoplast is derived from the chloroplast; new treatments function by targeting metabolic pathways used by plants. Dinoflagellates = key primary producers in marine ecosystems and form symbiosis with cnidarians (corals) Coral reefs are among the most diverse ecosystems in the world.
