BIOL240 Study Guide - Final Guide: Root Nodule, Ti Plasmid, Rhizobia
20 Dec 2012
School
Department
Course
Professor
Document Summary
Ex. mussel gills found near hydrocarbon seeps (sources of ch4) There are different types of compounds that can be used as carbon sources: some may be favoured over others. Methanotrophs can oxidize compounds that look like methane (ex. ammonium), but they do. Not get energy from this (they oxide them, but do not use them for growth) Type i = , cystlike body, ribulose monophosphate carbon assimilation pathway. Type ii = , can form exospores, serine carbon assimilation pathway. Can detect using fish (fluorescent in situ hybridization) red = ammonia-oxidizing bacteria: green = nitrite-oxidizing bacteria (nitrobacter) Pseudomonads found in soil, water, eukaryotic hosts some can be pathogenic (may infect plants/animals) Obligate intracellular parasites: causes human diseases (q fever, typhus) Have arthropod vectors close relative of mitochondria (similar features) Enterics, rickettsias, and pseudomonads do not have internal membranes. Bacteria exchanges dna with plants (bacteria-eukaryote interaction) Agrobaterium tumefaciens tumours induced by bacterial infection at the wound site (crown site) of plants.
