“Biological Nitrogen Fixation” Book Summary
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“Biological Nitrogen Fixation” Book Summary
Biological nitrogen fixation is a very valuable alternative to nitrogen fertilizer. This process will be discussed in the “Biological Nitrogen Fixation” book. A wide array of free-living and associative nitrogen fixing organisms (diazotrophs) will be covered. The most extensively studied and applied example of biological nitrogen fixation is the symbiotic interaction between nitrogen fixing “rh...
متن کاملBiological nitrogen fixation, 1924-1974.
Crop rotation was practiced in ancient times by alternating the use of leguminous and nonleguminous plants. The basis for the benefit derived from this practice was not understood, but it was observed empirically that crops were improved and the condition of the soil was maintained better with rotation than by continual cropping with nonleguminous plants. Rotation was recognized as good husband...
متن کاملMechanism of Biological Nitrogen Fixation
Recently Phelps and Wilson (1) reported the occurrence of hydrogenase, the enzyme which activates molecular hydrogen, in nitrogen-fixing bacteria. Because HZ specifically inhibits nitrogen fixation by red clover plants inoculated with Rhizobium trijolii as well as by Azotobacter (2,3), possession of hydrogenase by these organisms may be more than merely fortuitous. The possibility must be consi...
متن کامل93. Mechanism of Biological Nitrogen Fixation
A PREVIOuS report [Wyss & Wilson, 1941] demonstrated that B2 inhibits fixation of N2 by Azotobacter. Because of the apparent uniqueness of this type of inhibition, such a demonstration furnishes strong evidence that in the symbiotic and free-living N2 fixation processes the mechanism of fixation is very similar if not identical. Further studies described in this paper provide additional support...
متن کاملThe Thermochemistry of Biological Nitrogen Fixation
Using standard thermodynamic data it is shown that the oxidation of glucose by nitrogen to give carbon dioxide and ammonia is an overall reaction that involves a substantial evolution of heat and decrease in free energy. This is not in accordance with literature statements that biological nitrogen fixation is endothermic. In the concluding section a Frost diagram is used to survey the thermodyn...
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ژورنال
عنوان ژورنال: Advances in Microbiology
سال: 2016
ISSN: 2165-3402,2165-3410
DOI: 10.4236/aim.2016.66040