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CH VII microbial physio. and growth

CH VII microbial physio. and growth - CH VII Microbial...

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CH VII- Microbial Physiology and Growth Psychrotroph ile Phsychrotro ph Mesophile Thermophile Hyperthermophi le Temp  ° C -8 to 18 0 to 31 10 to 48 20-40 is best 40 to 72 65 to 110 Micro-Aerophiles - Only aerobic growth occurs. Oxygen in  low  concentrations is required.  Obligate Aerobe - Only aerobic growth occurs. Oxygen is required for growth. Facultative Anaerobes -Both anaerobic and aerobic growth occurs. More growth occurs in presence of  O 2 Obligate Anaerobes - Only anaerobic  growth occurs. When oxygen is present,  growth ceases. Aerotolerant Anaerobes - Only  anaerobic growth occurs; but growth  continues in presence of oxygen. Whats required Capnophile s High concen of CO 2 Acidophiles Low PH Neutrophile s PH 7       (-/+ 1.5) Alkaphiles High PH Halophiles    High concen of dissolved  Salt Miscellaneous Factors for growth/repair/reproduction: -Carbon -Nitrogen -Sulfur Phototroph ic Lithotroph ic
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