You wish to know whether Archaea exist in a lake water sample but are unsuccessful in culturing any. Using techniques described in this chapter, how could you determine whether Archaea existed in the sample, and if they did, what proportion of the cells in the lake water were Archaea?
Answer to relevant QuestionsDesign an experiment to solve the following problem. Determine the rate of methanogenesis (CO2 + 4 H2 S CH4 + 2H2O) in anoxic lake sediments and whether or not it is H2-limited. Also, determine the morphology of the dominant ...What is the difference between piezotolerant and piezophilic bacteria? Between these two groups and extreme piezophiles? What properties do piezotolerant, piezophilic, and extremely piezophilic microorganisms have in common? Keeping in mind that the open-ocean waters are highly oxic, predict the possible metabolic lifestyles of open-ocean Archaea and Bacteria. Why might rhodopsin-like pigments be more abundant in one group of organisms than in ...How are Hg2+ and CH3Hg+ detoxified by the mer system? What are xenobiotic compounds and why might microorganisms have difficulty catabolizing them?
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