Barr, Rita published the artcileCatechols stimulate ferricyanide reduction in chloroplast photosystem II, Related Products of alcohols-buliding-blocks, the publication is Biochimica et Biophysica Acta, Bioenergetics (1979), 546(1), 77-83, database is CAplus and MEDLINE.
In isolated chloroplasts from Spinacia oleracea, where electron transport to photosystem I was blocked by the plastoquinone antagonist, dibromothymoquinone, lipophilic catechols in concentrations of 50-150 μM stimulated ferricyanide reduction in photosystem II and associated O evolution. Nonpermeating catechols, such as Tiron, were unable to stimulate this reaction. Those quinones, such as 2,5-dimethylbenzoquinone, which act as class III electron acceptors, did not stimulate ferricyanide reduction in photosystem II or associated O evolution when electron transport to photosystem I was blocked by dibromoquinone. Stimulation of ferricyanide reduction was not observed in Tris-treated chloroplasts, implying that electron donation to photosystem II by catechols is not responsible for the stimulation. Various mechanisms for this stimulation in class II chloroplasts are discussed.
Biochimica et Biophysica Acta, Bioenergetics published new progress about 1139-46-4. 1139-46-4 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Phenol, name is 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, and the molecular formula is C14H22O2, Related Products of alcohols-buliding-blocks.
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