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Artigo em Chinês | MEDLINE | ID: mdl-15961905

RESUMO

The characteristics including oxygen uptake rates, fluorescence spectra and absorption spectra of photosystem I particles with or without Triton-X 100 treatment before or after the incubation at 70 degrees C for 10 min were compared. The oxygen uptake rates of photosystem I particles decreased after being incubated at 70 degrees C for 10 min, which could be recovered by the addition of Triton-X 100. Singlet oxygen was formed when the light-harvesting complex I was separated from the core complex of photosystem I, which resulted in high oxygen uptake rate. There was much difference in the fluorescence spectra of photosystem I particles between photosystem I particles treated with Triton-X 100 after the incubation at 70 degrees C for 10 min or not, which implies the ability of Triton-X 100 to promote the recovery of photosystem I particles after the incubation at 70 degrees C for 10 min.


Assuntos
Octoxinol/farmacologia , Oxigênio/metabolismo , Complexo de Proteína do Fotossistema I/metabolismo , Temperatura Alta , Oxigênio/química , Complexo de Proteína do Fotossistema I/química , Oxigênio Singlete/química , Oxigênio Singlete/metabolismo , Espectrometria de Fluorescência/métodos , Espectrofotometria/métodos
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