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한국식물학회 / v.33, no.4, 1990년, pp.277-283 
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시금치에서 분리한 광계 2 복합체의 불활성화와 재활성화에 대한 연구
( Studies on Inactivation and Reactivation of Isolated Photosystem II Complexes in Spinach ) |
| 전현식; 동의대학교 자연과학대학 생물학과;
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| 초 록 |
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| Inactivation and reactivation of photosynthetic oxygen evolving complex were studied with isolated spinach (Spinacia oleraceda. L.) photosystem II particles by the activity of oxygen evolution and chlorophyll fluorescence. When the particles were treated with Tris and urea, the oxygen evolution was inactivated and three polypeptides having molecular weights of 33 kDa, 24 kDa and 18 kDa were simultaneously released. But in NaCl-treated particles, two polypeptides of 24 kDa and 18 kDa were removed from PS II particles. The oxygen evolution activities of Tris and urea-treated particles were not restored by adding cation ions (Mg2+, Mn2+ and Ca2+), but the NaCl-treated particles were restored by exogenously added Ca2+. The removal of these extrinsic polypeptides, especially 33 kDa, markedly showed the decrease of the variable fluorescence (Fv). These results are likely to be due to dissipate thermal energy by antenna of photosystem II complexes. |
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| 키워드 |
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Journal of Plant Biology / v.33, no.4, 1990년, pp.277-283
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199011920115378)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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