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한국식물학회 / v.39, no.4, 1996년, pp.301-307 
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( Disassembly of Chlorophyll-Protein Complexes in Arabidopsis thaliana during Dark-Induced Foliar Senescence ) |
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| 초 록 |
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| The disassembly of Chl-protein complexes during dark-induced senescence (DIS) was investigated using detached third and fourthleaves of 21$pm$1 day-old Arabidopsis thaliana. Although Chl content decreased linearly after 1 d, a significant decrease of photochemical effeciency (Fv/Fm) was observed after 2 d. In experiments using native green gel electrophoresis of Chl-protein complexes combined with additional two-dimensional SDS-PAGE analysis, we could observe the degradation of both photosystems after 2 d. Although light-harvesting complex(LHC) for PSI (LHCI) was degraded first in PSI complex, small PSII apoproteins including CP47/CP43 and D1/D2 apoproteins were degraded first in PSII complexes. LHC for PSII (LHCII) trimers were stable until 4 d. The level of LHCII monomers was increased until 3 and decreased thereafter, resulting in the increase of free pigments. These results suggest that the disassembly process of PSI is different from that of PSII. |
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| 키워드 |
| dark-induced senescened;Chi-protein comples;Chl fluorescened;greengel;Arabicopsis thaliana; |
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Journal of Plant Biology / v.39, no.4, 1996년, pp.301-307
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920117998)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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