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Literature summary for 1.97.1.12 extracted from
- Superoxide generated in the chloroplast stroma causes photoinhibition of photosystem I in the shade-establishing tree species Psychotria henryi (2017), Photosynth. Res., 132, 293-303 .
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| additional information | treatment of detached leaves with constant high light in the presence of methyl viologen (MV) or a soluble alpha-tocopherol analogue, 2,2,5,7,8-pentamethyl-6-chromanol (PMC). MV significantly depresses photochemical quantum yields in PSI and PSII when compared to PMC. Methyl viologen not only strongly downregulates electron flow from PSII to PSI (ETRII), but also intensely inhibits circular electron transport in the shade-establishing species. Activation of circular electron flow cannot prevent PSI photoinhibition in Psychotria henryi. Strong PSII photoinhibition by MV. Different mechanisms of PSI photoinhibition in higher plants, overview | Psychotria henryi | |
| superoxide | superoxide generated in the chloroplast stroma causes photoinhibition of photosystem I, superoxide accelerates photoinhibition of PSI | Psychotria henryi |  |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| chloroplast | - |
Psychotria henryi | 9507 | - |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| reduced plastocyanin + oxidized ferredoxin + hv | Psychotria henryi | - |
oxidized plastocyanin + reduced ferredoxin | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Psychotria henryi | - |
- |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | - |
Psychotria henryi | - |
| petiole | - |
Psychotria henryi | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| reduced plastocyanin + oxidized ferredoxin + hv | - |
Psychotria henryi | oxidized plastocyanin + reduced ferredoxin | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| PSI | - |
Psychotria henryi |
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Release 2023.1 (January 2023)
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