MIMG 101 Lecture Notes - Lecture 1: Depolymerization, Motility, Cell Envelope

• School: UCLA
• Department: Microbiology, Immunology, and Molecular Genetics
• Course: MIMG 101
• Professor: G U N S A L U S& B R A D L E Y

Document Summary

All bacteria have a basic cell division program (binary fission, cell budding, cell polar growth), while some species require additional developmental programs. Program and outcome quorum signaling and bacteriocin defense biofilms and human pathogenesis root nodule formation for n2 fixation spore and antibiotic production. 1 cell differentiates independently of all other cells nearby. Its program responds solely on what the cell senses in the immediate environment. e. g. spore forming bacillus sp. , clostridium sp. Many individual cells make group decisions: many cells must work together as a team, developmental events are coordinated, some cells may end up with different fates e. g. streptomyces form spores, make antibiotics. Some antibiotic molecules inhibit protein synthesis by binding tightly to the active site of bacterial ribosomes and preventing peptide elongation. However, they are unable to bind to eukaryotic ribosomes and thus do not harm (human) cells! Streptomycin binds tightly to the prokaryotic (in particular grm(-) b) ribosomes (between.