The presence of the low molecular mass carbonic anhydrase in photosystem II of C3 higher plants

Ignatova, L. K.; Zhurikova, E. M.; Иванов, Б. Н.

doi:10.1016/j.jplph.2018.11.017

Cited by 19 publications

(15 citation statements)

References 34 publications

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“…For the PSII‐associated carbonic anhydrase(s) (Ignatova et al , 2019a,b), Cl − ‐depleted thylakoids and PSII particles of Zea mays have their carbonic anhydrase activity increased by the addition of Cl − up to 30 mol m −3 , with inhibition at higher concentrations (Stemler, 1986; Lu & Stemler, 2002). Lu & Stemler (2002) suggest that carbonic anhydrase activity is associated with the oxygen evolving complex 33 (OEC33 = psbO) protein, although this was not confirmed by Ignatova et al .…”

Section: Other Photosynthetic Roles Of Cl−mentioning

confidence: 99%

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Chloride involvement in the synthesis, functioning and repair of the photosynthetic apparatusin vivo

Raven

2020

New Phytologist

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Summary Cl− has long been known as a micronutrient for oxygenic photosynthetic resulting from its role an essential cofactor for photosystem II (PSII). Evidence on the in vivo Cl− distribution in Spinacia oleracea leaves and chloroplasts shows that sufficient Cl− is present for the involvement in PSII function, as indicated by in vitro studies on, among other organisms, S. oleracea PsII. There is also sufficient Cl− to function, with K+, in parsing the H+ electrochemical potential difference (proton motive force) across the illuminated thylakoid membrane into electrical potential difference and pH difference components. However, recent in vitro work on PSII from S. oleracea shows that oxygen evolving complex (OEC) synthesis, and resynthesis after photodamage, requires significantly higher Cl− concentrations than would satisfy the function of assembled PSII O2 evolution of the synthesised PSII with the OEC. The low Cl− affinity of OEC (re‐)assembly could be a component limiting the rate of OEC (re‐)assembly.

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Section: Other Photosynthetic Roles Of Cl−mentioning

confidence: 99%

“…Lu & Stemler (2002) suggest that carbonic anhydrase activity is associated with the oxygen evolving complex 33 (OEC33 = psbO) protein, although this was not confirmed by Ignatova et al . (2019a,b) for C 3 flowering plants, including S. oleracea .…”

Section: Other Photosynthetic Roles Of Cl−mentioning

confidence: 99%

Chloride involvement in the synthesis, functioning and repair of the photosynthetic apparatusin vivo

Raven

2020

New Phytologist

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“…It was noted that higher magnesium content was required to isolate PSII-membranes from knockout plants than from wild type plants (WT), which is indicative of abnormal PSII complex structure. These mutants lost the above-mentioned (in this section) property related to stimulating CA activity by acetazolamide in sub-micro molar concentration characteristic of low molecular mass PSII CA [77]. Such stimulation of activity by azole inhibitors of CAs is specifically characteristic of family CAs [80].…”

Section: Carbonic Anhydrases In Thylakoids Carbonic Anhydrases In Thylakoid Membranesmentioning

confidence: 99%

Carbonic Anhydrases in Photosynthesizing Cells of C3 Higher Plants

Ignatova¹,

Rudenko²,

Zhurikova³

et al. 2020

Prime Archives in Biochemistry

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“…As for another CA in PSII-membranes, which was called ‘extrinsic’ [70], or ‘low molecular mass’ [62,64], it has been suggested that PsbO, a manganese-stabilising protein of the oxygen-evolving complex, has CA activity [70,75]. This suggestion was oppugned [76], and it was later proven that the isolated protein PsbO did not demonstrate CA activity, and that the elimination of PsbO in PSII-membranes by treatment with salts did not lead to a decrease of their CA activity [77].…”

Section: Carbonic Anhydrases In Chloroplastsmentioning

confidence: 99%

Section: Carbonic Anhydrases In Chloroplastsmentioning

confidence: 99%

Carbonic Anhydrases in Photosynthesizing Cells of C3 Higher Plants

et al. 2019

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The review presents data on the location, nature, properties, number, and expression of carbonic anhydrase genes in the photosynthesizing cells of C3 plants. The available data about the presence of carbonic anhydrases in plasma membrane, cytoplasm, mitochondria, chloroplast stroma and thylakoids are scrutinized. Special attention was paid to the presence of carbonic anhydrase activities in the different parts of thylakoids, and on collation of sources of these activities with enzymes encoded by the established genes of carbonic anhydrases. The data are presented to show that the consistent incorporation of carbonic anhydrases belonging to different families of these enzymes forms a coherent system of CO2 molecules transport from air to chloroplasts in photosynthesizing cells, where they are included in organic molecules in the carboxylation reaction. It is discussed that the manifestation of the activity of a certain carbonic anhydrase depends on environmental conditions and the stage of ontogenesis.

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The presence of the low molecular mass carbonic anhydrase in photosystem II of C3 higher plants

Cited by 19 publications

References 34 publications

Chloride involvement in the synthesis, functioning and repair of the photosynthetic apparatusin vivo

Chloride involvement in the synthesis, functioning and repair of the photosynthetic apparatusin vivo

Carbonic Anhydrases in Photosynthesizing Cells of C3 Higher Plants

Carbonic Anhydrases in Photosynthesizing Cells of C3 Higher Plants

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