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Iron Deficiency Promotes the Lack of Photosynthetic Cytochrome c₅₅₀ and Affects the Binding of the Luminal Extrinsic Subunits to Photosystem II in the Diatom Phaeodactylum tricornutum.

ABSTRACT: In the diatom Phaeodactylum tricornutum, iron limitation promotes a decrease in the content of photosystem II, as determined by measurements of oxygen-evolving activity, thermoluminescence, chlorophyll fluorescence analyses and protein quantification methods. Thermoluminescence experiments also indicate that iron limitation induces subtle changes in the energetics of the recombination reaction between reduced Q_B and the S₂/S₃ states of the water-splitting machinery. However, electron transfer from Q_A to Q_B, involving non-heme iron, seems not to be significantly inhibited. Moreover, iron deficiency promotes a severe decrease in the content of the extrinsic PsbV/cytochrome c₅₅₀ subunit of photosystem II, which ap

SUBMITTER: Castell C

PROVIDER: S-EPMC9603157 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Dataset Information

Iron Deficiency Promotes the Lack of Photosynthetic Cytochrome c₅₅₀ and Affects the Binding of the Luminal Extrinsic Subunits to Photosystem II in the Diatom Phaeodactylum tricornutum.

OmicsDI is part of the ELIXIR infrastructure

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Dataset Information

Iron Deficiency Promotes the Lack of Photosynthetic Cytochrome c550 and Affects the Binding of the Luminal Extrinsic Subunits to Photosystem II in the Diatom Phaeodactylum tricornutum.

OmicsDI is part of the ELIXIR infrastructure

Tweets

Iron Deficiency Promotes the Lack of Photosynthetic Cytochrome c₅₅₀ and Affects the Binding of the Luminal Extrinsic Subunits to Photosystem II in the Diatom Phaeodactylum tricornutum.