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ARI SCIENTISTS STUDY METHANE-OXIDIZING BACTERIA (METHANOTROPH)

Why in news?

Scientists at Agharkar Research Institute (ARI), Pune, an autonomous institute under the Department of Science & Technology, have isolated 45 different strains of methanotrophic bacteria which have been found to be capable of reducing methane emissions from rice plants.

Details

  • Methanotrophs metabolise and convert methane into carbon-di-oxide. They can effectively reduce the emission of methane, which is the second most important greenhouse gas (GHG) and 26 times more potent as compared to carbon-di-oxide. 
  • In rice fields, methanotrophs are active near the roots or soil-water interfaces.
  • Rice fields are human-made wetlands and are waterlogged for a considerable period.
  • Anaerobic degradation of organic matter results in the generation of methane.
  • Rice fields contribute to nearly 10% of global methane emissions.
  • Very few studies in the world have focused on methanotrophs from tropical wetlands or tropical rice fields.

Besides methane mitigation studies, methanotrophs can also be used in methane value addition (valorization) studies.

  • Bio-methane generated from waste can be used by the methanotrophs and can be converted to value-added products such as single-cell proteins, carotenoids, biodiesel, and so on.
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September 2022
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