微生物学”考试时間地 点 时间:2000年1月9日上午8:00-10:00 地点:四教4206 |
“微生物学”考试时间地 点 时间：2000年1月9日上午8:00-10:00 地点：四教4206
Halobacterium Detailed phylogenetic tree of the archaea based on 16s ribosomal RNA sequence Euryarchaeota Comparisons Archaeoglobus Halophilic Methanococcus Methanobacterium Crenarchaeota Sulfolobus Thermococcus Methanosarcina Methanothermus Pyrodictium Thermoproteus Thermoplasma Methanopyn Desulfurococcus Korarchaeota
Detailed phylogenetic tree of the Archaea based on 16S ribosomal RNA sequence Comparisons
Archaeal membranes and cell wall Archaea lack fatty acids, instead have hydrocarbon moieties bonded to glycerol by ether (instead of ester) linkages Glycerol diethers and diglycerol tetraethers are the major classes of lipids present in Archaea Archaea do not contain muramic acid and D-amino acids. as in Bacteria A pseudopeptidoglycan is found in some archaea, it consists of two amino sugars: N-acetylglucosamine and N acetyltalosaminuronic acid, with only L-amino acids lin kages Some contain a thick wall consists only polysaccharide Some contain cell walls made of glycoprotein Some lack carbohydrate in their cell walls and have walls consisting of only protein
Archaeal Membranes and Cell Wall Archaea lack fatty acids, instead have hydrocarbon moieties bonded to glycerol by ether (instead of ester) linkages Glycerol diethers and diglycerol tetraethers are the major classes of lipids present in Archaea Archaea do not contain muramic acid and D-amino acids, as in Bacteria A pseudopeptidoglycan is found in some archaea, it consists of two amino sugars: N-acetylglucosamine and Nacetyltalosaminuronic acid, with only L-amino acids linkages Some contain a thick wall consists only polysaccharide Some contain cell walls made of glycoprotein Some lack carbohydrate in their cell walls and have walls consisting of only protein
Chapter 20 Prokaryotic Diversity: Archaea Extremely Halophilic Archaea Methane-Producing Archaea: Methanogenes Hyperthermophilic archaea Thermoplasma: A Cell-Wall-Less archaean Limits of Microbial Existence: Temperature Archaea earliest life forms?
Chapter 20 Prokaryotic Diversity: Archaea Extremely Halophilic Archaea Methane-Producing Archaea: Methanogenes Hyperthermophilic Archaea Thermoplasma: A Cell-Wall-Less Archaean Limits of Microbial Existence: Temperature Archaea: Earliest Life Forms?
Extremely Halophilic Archaea in habitants of highly saline environments such as solar salt evaporation ponds and natural salt lakes Hypersaline habitats: seawater she red-r ple Great Salt Lake in Utah q erlCpnberins adEt bacteri 企!下
Extremely Halophilic Archaea: inhabitants of highly saline environments such as solar salt evaporation ponds and natural salt lakes Hypersaline habitats: Great Salt Lake in Utah Seawater evaporating ponds: the red-purple Color is due to bacterioruberins and bacteriorhodopsin of halobacterium