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azotobacter    
固氮细菌; 自生固氮菌

固氮细菌; 自生固氮菌


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  • Azotobacter - Encyclopedia. com
    Azotobacter The genus Azotobacter is comprised of bacteria that require the presence of oxygen to grow and reproduce, and which are inhabitants of the soil There are six species of Azotobacter The representative species is Azotobacter vinelandii
  • Nitrogen Fixation - Encyclopedia. com
    Nitrogen Fixation Biological nitrogen (N 2) fixation is the reduction of atmospheric nitrogen gas to ammonia, according to the equation: N 2 + 10H + 8 e - 16ATP + 2NH 4+ + H 2 + 16ADP + 16P i The reaction is mediated by an oxygen-sensitive enzyme nitrogenase and requires energy, as indicated by the consumption of adenosine triphosphate (ATP ) This conversion of inert N 2 gas into a form
  • Beijerinck, Martinus Willem - Encyclopedia. com
    BEIJERINCK, MARTINUS WILLEM (b Amsterdam, Netherlands, 16 March 1851; d Gorssel, Netherlands, 1 January 1931), microbiology, botany Beijerinck was the youngest of four children of Derk Beijerinck, a tobacco dealer, and Jeannette Henriëtte van Slogteren, After going bankrupt when Martinus was two, the father became a railway clerk, which necessitated moving his family several times When
  • Nitrogen Cycle in Microorganisms - Encyclopedia. com
    Examples of nitrogen-fixing bacteria include Azotobacter, Beijerinkia, some species of Klebsiella, Clostridium, Desulfovibrio, purple sulfur bacteria, purple non-sulfur bacteria, and green sulfur bacteria Some species of plants live in an intimate and mutually beneficial symbiosis with microbes that have the capability of fixing dinitrogen
  • Bacteria - Encyclopedia. com
    Other bacteria, especially Pseudomonas, convert nitrate to nitrogen gas These bacteria complement the activity of nitrogen-fixing bacteria (for example, Rhizobium), which fix nitrogen from the atmosphere and make it available to leguminous plants, and Azotobacter, which are also found in fresh and marine waters
  • Vinogradsky, Sergey Nikolaevich - Encyclopedia. com
    The study of the energy metabolism of this microbe helped to establish that it is the stimulant of soil–oxidizing fermentation The study of Azotobacter was a continuation of research on biological nitrogen fixation Vinogradsky studied it in its natural habitats: soil or on plates of silicic acid gel
  • Chemoautotrophic and Chemolithotrophic Bacteria - Encyclopedia. com
    Chemoautotrophic and chemolithotrophic bacteria Autotrophic bacteria obtain the carbon that they need to sustain survival and growth from carbon dioxide (CO2) To process this carbon source, the bacteria require energy Chemoautotrophic bacteria and chemolithotrophic bacteria obtain their energy from the oxidation of inorganic (non-carbon) compounds That is, they derive their energy from the





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