| Autor: |
L I, Paramonova, Ia, Naush, V D, Kreslavskiĭ, Iu M, Stolovitskiĭ |
| Rok vydání: |
1982 |
| Předmět: |
|
| Zdroj: |
Biofizika. 27(2) |
| ISSN: |
0006-3029 |
| Popis: |
Quenching of chlorophyll a and pheophytin a fluorescence with fucoxanthin in acetone and n-hexanole at room temperature was investigated. The relationship between fluorescence yield and concentration of the quencher is subject to Stern--Folmer relation. The velocity constants were calculated and the efficiency of fluorescence quenching was determined. The energetic estimation has shown that the fluorescence quenching mechanism when the excited chlorophyll a molecule collides with fucoxanthin molecule may involve electron transfer from chlorophyll to fucoxanthin. In case of pheophytin a transfer of the electron from fucoxanthin to pheophytin is likely to take place. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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