Inhibitors | Comment | Organism | Structure |
---|---|---|---|
additional information | light-induced oxidative stress leads to photoinactivation of the oxygen-evolving photosystem II. In contrast to model organisms, photosynthesis persists in Microcoleus sp. even at light intensities 2-3times higher than required to saturate oxygen evolution. This is despite an extensive loss (85-90%) of variable fluorescence and thermoluminescence, representing radiative PSII charge recombination that promotes the generation of damaging singlet oxygen. Light induced loss of variable fluorescence is not inhibited by the electron transfer inhibitors 3-(3,4-dichlorophenyl)-1,1-dimethylurea, 2,5-dibromo-3-methyl-6-isopropylbenzoquinone, nor the uncoupler carbonyl cyanide-p-trifluoromethoxyphenylhydrazone, thus indicating that reduction of plastoquinone or O2, or lumen acidification essential for non-photochemical quenching are not involved | Microcoleus sp. |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
2 H2O + 2 plastoquinone + 4 hv | Microcoleus sp. | - |
O2 + 2 plastoquinol | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Microcoleus sp. | - |
- |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
2 H2O + 2 plastoquinone + 4 hv | - |
Microcoleus sp. | O2 + 2 plastoquinol | - |
? | |
additional information | application of electron acceptors from PSII, 2,6-dimethylbenzoquinone and,2,6-dichlorophenolindophenol, to measure PSII activity | Microcoleus sp. | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
oxygen-evolving photosystem II | - |
Microcoleus sp. |
PSII | - |
Microcoleus sp. |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
25 | - |
- |
Microcoleus sp. |