Methanogenesis

Ferry, James G.; Kastead, Kyle A.

doi:10.1128/9781555815516.ch13

Cited by 46 publications

(28 citation statements)

References 273 publications

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“…(labile organic C) to CH 4 during their metabolic process . In the penultimate this process, methanogens synthesise methyl‐CO‐M as an intermediate, which is finally reduced to CH 4 through an enzyme‐mediated biochemical reaction . Application of EDTA suppressed this step to mitigate CH 4 emission from submerged soil .…”

Section: Discussionmentioning

confidence: 99%

“…Approximately 1 billion tons of CH 4 is globally formed per year by methanogens . Methanogens, a physiologically diverse group of strictly anaerobic Euryarchaeota, have an energy metabolism restricted to the formation of CH 4 from simple organic C compounds through a multi‐step enzyme‐mediated process (methanogenesis) . Application of EDTA suppressed activity of methyl co‐enzyme M reductase (MCR) enzyme which, in turn, reduced CH 4 emission flux from submerged paddy soil and application of EDTA at 5.0 ppm was the most optimum dose to mitigate CH 4 emission from rice paddy soil.…”

Section: Introductionmentioning

confidence: 99%

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Contrasting effects ofEDTAapplications on the fluxes of methane and nitrous oxide emissions from straw‐treated rice paddy soils

Pramanik

Kim

2016

J Sci Food Agric

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contrasting effects ofEDTAapplications on the fluxes of methane and nitrous oxide emissions from straw‐treated rice paddy soils

Pramanik

Kim

2016

J Sci Food Agric

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“…In the rumen, H 2 is produced during plant cell wall degradation as an intermediate compound by cellulolytic bacteria (i.e., Ruminococcus albus, Ruminococcus fl avifaciens ) and anaerobic fungi (Stewart and Bryant 1988 ). It never gets accumulated, as it is rapidly utilized by methanogens in ruminants (Wolin and Miller 1988 ) to produce CH 4 and generate ATP (Albers et al 2007 ;Ferry and Kastead 2007 ). Details of different genera are given in Table 1.2 .…”

Section: Methanogensmentioning

confidence: 98%

“…These rumen microorganisms utilize the H 2 and CO 2 produced by the protozoa, fungi, and bacteria from the catabolism of hexoses to produce CH 4 and generate ATP (Albers et al 2007 ;Ferry and Kastead 2007 ), which benefi ts the donors by providing an electron sink for reducing equivalents to minimize the partial pressure of H 2 (Wolin and Miller 1988 ;Lange et al 2005 ) inside the rumen. These are comprised of about 70 species among 31 genera as reviewed in "Bergey's Manual of Systematic Bacteriology" (Whitman et al 2001 ) and "The Prokaryotes."…”

Section: Methanogensmentioning

confidence: 98%

Rumen Microbiology: An Overview

Choudhury

Salem

Jena

et al. 2015

Rumen Microbiology: From Evolution to Revolution

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The systematic exploration of microbial ecosystem of the rumen was commenced by the father of rumen microbiology, Robert Hungate, in 1950s. His contributions toward the development of anaerobic culture techniques have illustrated the ways to explore the complex microbial structures of the rumen and other anaerobic ecosystems. The understanding of rumen microbiology has strengthened an awareness to improve the feed utilization and manipulation of microbial compositions. Microbes and their interactions in interspecies H 2 transfers were fi rst studied in the rumen ecosystems and attracted pioneers to investigate the alternate abatement strategies of methane production along with enhanced animal productivity. The discovery of alternate hydrogenotrophs and industrially important novel microbes and the management of rumen disorders via microbial manipulations make this community an interesting research platform for different microbial theories. The discovery of anaerobic fungi as a part of rumen fl ora by Orpin during the 1970s disproved their mistaken identity as fl agellated protozoa and the concept that all fungi are aerobic organisms.

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“…For example, Archaea have a eukaryotic-like transcription apparatus but bacterial-like transcription regulation and coupled transcription-translation (1). Moreover, Archaea have polycistronic mRNAs like Bacteria, implying that archaeal ribosomes can perform repeated cycles of initiation on the same mRNA (2)(3)(4).…”

Section: Introductionmentioning

confidence: 99%

Ribosome Profiling in Archaea Reveals Leaderless Translation, Novel Translational Initiation Sites, and Ribosome Pausing at Single Codon Resolution

Gelsinger

Dallon

Reddy

et al. 2020

Preprint

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ABSTRACTHigh-throughput methods, such as ribosome profiling, have revealed the complexity of translation regulation in Bacteria and Eukarya with large-scale effects on cellular functions. In contrast, the translational landscape in Archaea remains mostly unexplored. Here, we developed ribosome profiling in a model archaeon, Haloferax volcanii, elucidating, for the first time, the translational landscape of a representative of the third domain of life. We determined the ribosome footprint of H. volcanii to be comparable in size to that of the Eukarya. We linked footprint lengths to initiating and elongating states of the ribosome on leadered transcripts, operons, and on leaderless transcripts, the latter representing 70% of H. volcanii transcriptome. We manipulated ribosome activity with translation inhibitors to reveal ribosome pausing at specific codons. Lastly, we found that the drug harringtonine arrested ribosomes at initiation sites in this archaeon. This drug treatment allowed us to confirm known translation initiation sites and also reveal putative novel initiation sites in intergenic regions and within genes. Ribosome profiling revealed an uncharacterized complexity of translation in this archaeon with bacteria-like, eukarya-like, and potentially novel translation mechanisms. These mechanisms are likely to be functionally essential and to contribute to an expanded proteome with regulatory roles in gene expression.

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Methanogenesis

Cited by 46 publications

References 273 publications

Contrasting effects ofEDTAapplications on the fluxes of methane and nitrous oxide emissions from straw‐treated rice paddy soils

Contrasting effects ofEDTAapplications on the fluxes of methane and nitrous oxide emissions from straw‐treated rice paddy soils

Rumen Microbiology: An Overview

Ribosome Profiling in Archaea Reveals Leaderless Translation, Novel Translational Initiation Sites, and Ribosome Pausing at Single Codon Resolution

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