WebNational Center for Biotechnology Information WebDec 22, 2024 · Acetylene reduction assay (ARA) is a commonly used method to detect biological N 2 fixation activities and determine the N-fixation rate of marine diazotrophs. This method was developed based on the discovery that nitrogenase, the enzyme for biological N 2-fixation processes, can also reduce acetylene (C 2 H 2) to ethylene (C 2 …
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WebFeb 19, 2024 · The second factor is the temperature at which carbon fixation occurs. Usually, the maximal rate of Rubisco is measured in vitro at 25 °C, but the fixation rate is dependent on the temperature at which the enzyme is working, so if in nature Rubisco is working at lower temperatures, we would expect its maximal rate to be lower than the in … Web22 hours ago · The 30-year fixed-rate mortgage averaged 6.27% in the week ending April 13, down slightly from 6.28% the week before, according to data from Freddie Mac released Thursday. A year ago, the 30-year ... nippon paint head office
Nitrogen fixation: A poorly understood process along the …
WebGiven the institution-specific treatment cost and the probability of complications, rigid fixation was a more cost-effective treatment than nonrigid fixation. Conclusion: Cost … WebNov 1, 2024 · The fixed rate that we set each May and November applies to all bonds we issue in the 6 months following the date when we set the rate. The fixed rate applies for … WebHowever, N fixation rates vary substantially among savannahs even within small geographical areas, resulting from differences in edaphic characteristics, history, grazing practices and other features. For example, in a Tanzanian savannah region Cech et al. measured rates of BNF ranging from approximately 0.3 to 7.5 kg N ha −1 yr −1. numbers in lakhs in excel