BIOL240 Lecture Notes - Lecture 14: Ftsz, Phytophthora Infestans, Plasmodium
15 Mar 2019
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Cell wall disappears when inside and become endosymbiont. Later photosynthetic bacteria engulfed ancestors of cyanobacteria were engulfed. Mitochondria/chloroplasts resemble bacteria in both size and shape: double membranes (think of endosome; like a food vacuole is formed around the mitochondria) Cell" division with ftsz like bacteria: each has its own dna, rrna more like bacterial sequences than eukaryal ones, circular chromosomes not like dna in nucleus, *amitochondriates lack mitochondria. Cells likely evolved out of using them to obtain energy. Giardia is example (beaver fever ferments anaerobically) * endosymbiosis today: there are bacteria living in amoeba. When bacteria are put inside amoeba without bacteria some of the amoeba die but some survive. After a few generations you treat the amoeba with x- bacteria with antibiotics something that would only affect the bacteria. The bacteria die but even the amoeba die. Doesn"t finish them off immediately as algae are photosynthetic so they make food and avoids getting digested.
