MBIO 1010 Lecture Notes - Lecture 16: Water Balance, Aureus, Great Salt Lake
28 Dec 2017
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2: thought that this is probably the first energy-yielding reactiona that take place note: methanopyruc kandleri uses the thermophilic chemolithotrophy, other environmental effects on microbial growth. 5. 14 effects of ph on microbial growth: the ph of an environment greatly affects microbial growth, some organisms have evolved to grow best at low or high ph, but most organisms grow best between ph. Halophiles: grow best at reduced water potential; have a specific requirement for nacl: many marine microbes. Halotolerant: can tolerate reduction in water activity of environment but generally grow best at lower solute concentrations: ex: staphylococcus aureus lives on human skin, grows best at low nacl, but can tolerate up to 17. 5% salt (nacl) Osmophiles: organisms that grow with high sugar as solute. Xerophiles: orgnaisms able to grow in very dry environments these are rather specialized and rare organisms. This is why jams and jellies do not have many organisms growing in them.
