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Response Regulator Article Critique

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The article has done a good job in keeping a objective and unbiased tone throughout, claims are supported by working links to peer reviewed papers published by trustworthy and neutral sources. But the article has some areas for improvement.

The introductory paragraph of response regulators could be made more concise by restructuring some sentences to remove redundancies. Citations should also be made immediately after each claim instead of coagulated at the end of the paragraph. For example, the second and part of the third sentences could be changed to "histidine kinases, which serve as sensors of environmental changes <citation>, are coupled with response regulators<citation>. Together they are two of the most common gene families in bacteria <citation>." in order to clarify the relationship between each citation and its corresponding fact.

The detailed descriptions in the first three sentences in the "Function" section cannot be verified because they are not followed by citations. The author should back up the claims with references from more peer reviewed papers. Additionally, the relevance of the sentence regarding "cross-talk" is hard to grasp with such minimal information. This topic should either be expanded on or discarded. Although the information in the "Classification" section is substantiated by a paper, the descriptions of the three classes are too similar that of the original paper. I would suggest the author correct this case of close paraphrasing.

Lastly, since function and structures are related, a full section on the structures of response regulators would be appreciated.

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Methanobacteria Critique

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Despite being marked of high importance, this article is only a stub with very little content in it. The only two sentences in this article is a statement of the taxonomy of methanobacteria. The sentences were clear and concise, but there is a lot that could be added to the article. Even from that one source from Journal of clinical periodontology, the author could have identified that methanobacteria was part of human's normal flora. A possible reason for the lack of development in this article is because this is a relatively new topic of interest. Many papers regarding methanobacteria have only been published in the recent years. Brand new research has shown that methanobacteria played a significant role in protecting steel from corrosion in natural mineral deposition layer [1]. It was also found that methanobacterium were a dominant group in anaerobic disgesters of food wastewater. [2] Through these research, humans may be able to utilise methanobacteria in biotechnology. New methanobacteriums are still being discovered, [3] and methanobacterium was also recently found to be in human subgingival plaque.[4] The significance of methanobacterias in research and technology is still growing as of now.

Since there are no pictures in the article, a non-copyrighted photo of any methanobacteria colony under a microscope, or any visual representation of them would make the article more appealing. A point should also be made to clear the confusion around the inclusion of "bacteria" in the name, because methanobacteria are under archaea and not bacteria. I would also expand on the new research surrounding the possible contribution to biotechnology it could have, especially in the prevention of the corrosion of metals as discussed in [1] and the treatment of food waste water in [2]. An additional section with some examples of notable methanobacteria that have been discovered and their corresponding natural environment would also give the topic some more substance. Although the significance of these species have yet to be determined. Ideally I would be able to find and discuss some significant contributions methanobacteria that has already been discovered in length.

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Editing Methanobacteria

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Original-"Methanobacteria"

Methanobacteria

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In taxonomy, the Methanobacteria are a class of the Euryarchaeota.[5] Several of the classes of the Euryarchaeota are methanogens and the Methanobacteria are one of these classes.

References

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    1.See the NCBI webpage on Methanobacteria. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.

Edits-"methanobacteria"

Methanobacteria

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In taxonomy, the Methanobacteria are a class of Archaea under Euryarchaeota.[6] Several of the classes of the Euryarchaeota are methanogens and the methanobacteria are one of these classes. Despite inclusion of the term "bacteria" in its name, methanobacterias are under the domain of archaea and not bacterias. As of 2014, there are 20 species of methanobacteria that have been formally identified, all of which are able to grow by utilising redox reactions between H2 and CO2[3]. Methanobacterias are currently being studied for their possible application in biotechnology.

Species Identified

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  1. Methanobacterium thermalcaliphilum[7]
  2. Methanobacterium formicicum[7]
  3. Methanobacterium bryantii[7]
  4. Methanobacterium beijingense[7]
  5. Methanobacterium thermoautotrophicum[7]
  6. Methanobacterium ruminantium[7]
  7. Methanobacterium lacus[8]
  8. Methanobacterium congolense [9]
  9. Methanobacterium oryzae [10]
  10. Methanobacterium kanagiense[11]
  11. Methanobacterium arcticum[12]
  12. Methanobacterium veterum[13]
  13. Methanobacterium aarhusense[14]
  14. Methanobacterium petrolearium[15]
  15. Methanobacterium ferruginis[15]
  16. Methanobacterium movens[16]
  17. Methanobacterium flexile[16]
  18. Methanobacterium palustre[17]
  19. Methanobacterium palusdis[3]

Biotechnology

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It was found that methanobacterium was responsible for mineral deposits on metal surfaces which prevented corrosion[1]. This capability of methanobacterias are being explored as a technology to protect metal constructions.

Methanobacterium beijingese were found to be one of the contributors to the anaerobic digestion processing of food wastewater.[2]

Methanobacterium palustre were discovered to be capable of performing electromethanogenesis, providing an alternative way to capture carbon dioxide and storing electrical energy from renewable resources as methane.[18]

References

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  1. ^ a b Kip, Nardy (19/09/2017). "Methanogens predominate in natural corrosion protective layers on metal sheet piles". Scientific Reports. 7 (11899). doi:10.1038/s41598-017-11244-7. Retrieved 27/9/2017. {{cite journal}}: Check date values in: |accessdate= and |date= (help)
  2. ^ a b Lee, J (5/9/2017). "Bacteria and archaea communities in full-scale thermophilic and mesophilic anaerobic digesters treating food wastewater: Key process parameters and microbial indicators of process instability". Bioresource Technology. 245: 689--697. doi:10.1016/j.biortech.2017.09.015. {{cite journal}}: Check |doi= value (help); Check date values in: |date= (help)
  3. ^ a b c Cadillo-Quiroz, H (2014 May). "Methanobacterium paludis sp.nov. and a novel strain of Methanobacterium lacus isolated from northern peatlands". bioresrouce technology. 64: 1473-80. doi:10.1099/ijs.0.059964-0. PMID 24449792. Retrieved 27/9/2017. {{cite journal}}: Check date values in: |accessdate= and |date= (help); Cite has empty unknown parameter: |1= (help)
  4. ^ Brusa, T (09/01/1987). "The presence of methanobacteria in human subgingival plaque". Journal of clinical periodontology. 14 (8): 470. PMID 3308971. {{cite journal}}: |access-date= requires |url= (help); Check date values in: |accessdate= and |date= (help)
  5. ^ See the NCBI webpage on Methanobacteria. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19. {{cite journal}}: Empty citation (help)
  6. ^ See the NCBI webpage on Methanobacteria. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
  7. ^ a b c d e f Boone, David (2001). Bergey's Manual of Systematic Bacteriology (PDF). New York: Springer. ISBN 978-0-387-95041-9. Retrieved 8/10/2017. {{cite book}}: Check date values in: |accessdate= (help)
  8. ^ Borrel, G (2012 Jul). "Methanobacterium lacus sp. nov., isolated from the profundal sediment of a freshwater meromictic lake". Int J Syst Evol Microbiol. 62 (pt7): 1625–9. doi:10.1099/ijs.0.034538-0. PMID 21890730. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  9. ^ Cuzin, N (2001 Mar). "Methanobacterium congolense sp. nov., from a methanogenic fermentation of cassava peel". Int J Syst Evol Microbiol. 61 (Pt 2): 489–93. doi:10.1099/00207713-51-2-489. PMID 11321095. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  10. ^ Joulian, C (2000 Mar). "Methanobacterium oryzae sp. nov., a novel methanogenic rod isolated from a Philippines ricefield". Int J Syst Evol Microbiol. 50 (Pt 2): 525–8. doi:10.1099/00207713-50-2-525. PMID 10758856. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  11. ^ Kitamura, K (2011 Jun). "Methanobacterium kanagiense". Int J Syst Evol Microbiol. 61 (Pt 6): 1246–52. doi:10.1099/ijs.0.026013-0. PMID 20639228. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  12. ^ Shcherbakova, V (2011 Jan). "Methanobacterium arcticum sp. nov., a methanogenic archaeon from Holocene Arctic permafrost". Int J Syst Evol Microbiol. 61 (Pt 1): 144–7. doi:10.1099/ijs.0.021311-0. PMID 20173003. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  13. ^ Krivushin KV, KV (2010 Feb). "Methanobacterium veterum sp. nov., from ancient Siberian permafrost". Int J Syst Evol Microbiol. 60 (Pt 2): 455–9. doi:10.1099/ijs.0.011205-0. PMID 19654368. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  14. ^ Shlimon, AG (2004 May). "Methanobacterium aarhusense sp. nov., a novel methanogen isolated from a marine sediment (Aarhus Bay, Denmark)". Int J Syst Evol Microbiol. 54 (Pt 3): 759–63. doi:10.1099/ijs.0.02994-0. PMID 15143021. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  15. ^ a b Mori and Harayama, K (2011 Jan). "Methanobacterium petrolearium sp. nov. and Methanobacterium ferruginis sp. nov., mesophilic methanogens isolated from salty environments". Int J Syst Evol Microbiol. 61 (Pt 1): 138–43. doi:10.1099/ijs.0.022723-0. PMID 20173004. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  16. ^ a b Zhu, J (2011 Dec). "Methanobacterium movens sp. nov. and Methanobacterium flexile sp. nov., isolated from lake sediment". Int J Syst Evol Microbiol. 61 (Pt 12): 2974–8. doi:10.1099/ijs.0.027540-0. PMID 21278411. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)
  17. ^ Zellner, G (1988). "Characterization of a new mesophilic, secondary alcohol-utilizing methanogen, Methanobacterium palustre spec. nov. from a peat bog". Arch Microbiol. 151: 1–9. {{cite journal}}: |access-date= requires |url= (help)
  18. ^ Cheng, S (2009 May). "Direct biological conversion of electrical current into methane by electromethanogenesis". Environ Sci Technol. 43 (10): 3953–8. PMID 19544913. Retrieved 8 October 2017. {{cite journal}}: Check date values in: |date= (help)

Aw13jcha (talk) 03:24, 9 October 2017 (UTC)[reply]

Aw13jcha's Peer Review

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In general, the information added is relevant.Language is easy to understand, with balanced coverage and neutral content.The added section on taxonomy for example, greatly improves the clarity of currently identified species in methanobacteria. In terms of structure,it is not clear whether the author intends to keep the "References" section with the NCBI webpage in the original article. I would suggest just including the NCBI webpage in the external links section at the end of the article as it makes more sense to keep all extra references in one place.Sources are scholarly and is linked to each relevant sentence.Content added is well sourced and includes up to date information about applications of methanobacteria.For example, information about using methanobacteria to improve efficiency of energy generation from renewable sources or energy. Moving on to specific sections.For the methanobacteria section, I would suggest explaining why the term bacteria is included in its name despite being Archae, just so that the article reads more clearly. The author could perhaps briefly explain in one sentence about RNA sequencing, and how this helped differentiate archae from bacteria.For the biotechnology section, more detail is needed since it should read clearly to someone without any background in science. For example,more detail could be added to explain how mineral deposits help prevent corrosion : by preventing the metal's contact to air and water.A brief reference from the research article can also be made to explain how the mineral deposits are formed: methanobacteria extract electrons from the metal surface and induce carbonate precipitation, forming a casing. Also, the authors presentation of Methanobacterium palustre from the quoted source is not clear. From the referenced research,the major benefit of electromethanogenesis is to increase the energy efficiency of methane production as compared to traditional methods like a plain carbon cathode. Also, electrical current produced from renewable energy sources is being stored into methane. The authors writing on this seem to imply that methane is the renewable energy source and not the product of the reaction. All in all a good article, but it needs more detail in its explanations. Honorsc (talk) 19:27, 5 November 2017 (UTC)[reply]

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