Properties of microbial photosynthetic systems Property cyanobacteria Green and Purple nonsulfur purple bacteria bacteria Photo-pigment Chlorophyll BcteriochlorophyllBcteriochlorophyll O2 production No Electron donors H2O H2 H2S. s H2 h2s. s Carbon source CO2 CO2 Organic /CO2 Primary products ATP+ NADPH ATP ATP of energy conversion
Property cyanobacteria Green and purple bacteria Purple nonsulfur bacteria Photo - pigment Chlorophyll Bcteriochlorophyll Bcteriochlorophyll O2 production Yes No No Electron donors H2O H2, H2S, S H2, H2S, S Carbon source CO2 CO2 Organic / CO2 Primary products of energy conversion ATP + NADPH ATP ATP Properties of microbial photosynthetic systems
Chemoautotroph: Bacteria Electron Electron Products donor acceptor Alcaligens and O H2O Pseudomonas sp Nitrobacter NO2- O NO3. H2O Nitrosomonas THat O NO2" H2O Desulfovibrio SO42 H20. h2S Thiobacillus denitrificans So H2S NO3 SO42N Thiobacillus ferrooxidans Fe O Fe3+ H2o Nitrifying bacteria 2NH4++302 2 NO2-+2 H20+4 H++ 132 Kcal
Chemoautotroph: Nitrifying bacteria 2 NH4 + + 3 O2 2 NO2- + 2 H2O + 4 H+ + 132 Kcal Bacteria Electron donor Electron acceptor Products Alcaligens and Pseudomonas sp. H2 O2 H2O Nitrobacter NO2 - O2 NO3 - , H2O Nitrosomonas NH4 + O2 NO2 - , H2O Desulfovibrio H2 SO4 2- H2O. H2S Thiobacillus denitrificans S0 . H2S NO3 - SO4 2- , N2 Thiobacillus ferrooxidans Fe 2+ O2 Fe 3+ , H2O
are needed to grow microorganisms in the la boratory and to carry out specialized procedures like microbial identification, water and food analysis, and the isolation of particular microorganisms. A wide variety of media is available for these and other purposes
are needed to grow microorganisms in the laboratory and to carry out specialized procedures like microbial identification, water and food analysis, and the isolation of particular microorganisms. A wide variety of media is available for these and other purposes. Culture media
can be obtained through the use of spread plates, streak plates, or pour plates and are required for the careful study of an individual microbial species
can be obtained through the use of spread plates, streak plates, or pour plates and are required for the careful study of an individual microbial species. Pure cultures
Nutrient molecules frequently cannot cross selectively permeable plasma membranes through passive diffusion and must be transported by one of three major mechanisms involving the use of membrane carrier proteins
Nutrient molecules frequently cannot cross selectively permeable plasma membranes through passive diffusion and must be transported by one of three major mechanisms involving the use of membrane carrier proteins. Uptake of nutrients