Talk:Photosystem II

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Wiki Education Foundation-supported course assignment

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Armin Garmany.

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Wiki Education Foundation-supported course assignment

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Davin.florent, Hynes.Lucas.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 06:36, 17 January 2022 (UTC)[reply]

Untitled

The comments about the composotion of PSII are incorrect. Ref. http://www.ncbi.nlm.nih.gov/sites/entrez. It's obvious that this paper is in ref to a SINGLE organism, not all photosynthetic life.

Incorrect? Can you please be more specific? Your reference does not go to a specific article.

I am planning to edit this page

... to include information on the mechanism of action of the metal cluster. This will include the Babcock mechanism for the butterfly structure, and proposed mechanisms for the currently accepted cluster structure. Hynes.Lucas (talk) 20:55, 2 December 2015 (UTC)[reply]

Thanks for communicating your goals. You might consult Oxygen-evolving complex. In fact the latter article might be where you might want to focus. --Smokefoot (talk) 23:06, 2 December 2015 (UTC)[reply]

Review

The introduction is concise and easy to follow. However, the article overall can be expanded upon for clarity and depth. There are two problems in the Water Splitting section. The S State Mechanism described is hard to follow without any prior knowledge. Possibly including details about the period 4-damped oscillation and about the dark stable states may allow for a better understanding of why this trend is observed . It would also be interesting to include double hits and misses causing the trend to disappear after continuous pulsing. The second problem is seen in the beginning of the section. There is no citation for the claim discussing water splitting as one of the most important reactions on the planet or its artificial use for alternative energy. The rest of this section seems to be well cited. Armin Garmany (talk) 18:42, 24 September 2016 (UTC)[reply]

"All other photosystems?"

The article contrasts the charge separation in PSII to the charge separation in "all other photosystems". However, as I understand it, there is only one other photosystem: PSI. Am I missing something here, or should I change the wording of the article? Mover of molehills^{move me} 17:11, 1 October 2022 (UTC)[reply]

@Mover of molehills This seems to be the language used in the Rutherford reference where they say at one point The RCIIs (i.e. those from PSII, purple bacterial and Chloroflexus) also seem to share a common ancestor with RCIs (those from PSI, heliobacteria and green sulphur bacteria). In other parts of their article they are distinguishing PSII from all its corresponding reaction centres in purple bacteria and Chloroflexus as well as from RCI centres. Maybe our text needs improvement to make this clearer. Mike Turnbull (talk) 21:39, 1 October 2022 (UTC)[reply]

oxidation state of OEC in S4 unclear

Since there is no experimental data on S4, oxidation state assignment is based on DFT entirely. However, there is no consensus whether the dangling Mn atom of the OEC is in oxidation state +4 or +5 before oxygen formation as neither nucleophilic attack or radical coupling mechanism can be conclusively be ruled out. 2003:F6:A720:BD00:2A2C:2AB0:4D9B:2945 (talk) 14:42, 1 November 2023 (UTC)[reply]

IP editor. Both this article and the specific oxygen-evolving complex one are open for editing, so you could be bold and make any additions to the text you feel would be an improvement (with citations to sources, of course). Alternatively, you could suggest specific changes on the Talk Pages for consideration. Mike Turnbull (talk) 14:57, 1 November 2023 (UTC)[reply]