microaerophilic

Examples of microaerophilic in the following topics:

• Campylobacter

  • Campylobacter (meaning 'twisted bacteria') is a genus of bacteria that are Gram-negative, spiral, and microaerophilic.
  • Campylobacter is a genus of bacteria that are Gram-negative, spiral, and microaerophilic.

• Iron Oxidation

  • These micro-organisms (for example Gallionella ferruginea or Leptothrix ochracea) live at the oxic-anoxic interfaces and are microaerophiles.
  • Outline the purpose of iron oxidation and the three types of ferrous iron-oxidizing microbes (acidophiles, microaerophiles and anaerobic photosynthetic bacteria)

• Oxygen

  • Microaerophiles are organisms that may use oxygen, but only at low concentrations.
  • Aerobically different bacteria behave differently when grown in liquid culture: 1) Obligate aerobic bacteria gather at the top of the test tube in order to absorb maximal amount of oxygen. 2) Obligate anaerobic bacteria gather at the bottom to avoid oxygen. 3) Facultative bacteria gather mostly at the top, since aerobic respiration is advantageous (ie, energetically favorable); but as lack of oxygen does not hurt them, they can be found all along the test tube. 4) Microaerophiles gather at the upper part of the test tube but not at the top.

• Hydrogen Oxidation

  • Helicobacter pylori (H. pylori, previously named Campylobacter pyloridis, is a Gram-negative, microaerophilic bacterium found in the stomach.
  • Most grow best under microaerophilic conditions.
  • Helicobacter pylori (H. pylori ), previously named Campylobacter pyloridis, is a Gram-negative, microaerophilic bacterium found in the stomach.

• Special Culture Techniques

  • Some special culture conditions are relatively simple as demonstrated by microaerophile.
  • A microaerophile is a microorganism that requires oxygen to survive, but requires environments containing lower levels of oxygen than are present in the atmosphere (~20% concentration).
  • Many labs also have access directly to carbon dioxide and can add the desired carbon dioxide levels directly to incubators where they want to grow microaerophiles.

• Magnetosomes

  • They contain 15 to 20 magnetite crystals that together act like a compass needle to orient magnetotactic bacteria in geomagnetic fields, thereby simplifying their search for their preferred microaerophilic environments.

• Anoxygenic Photosynthetic Bacteria

  • They are anaerobic or microaerophilic, and are often found in hot springs or stagnant water.