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Journal of plant biology = 식물학회지 v.48 no.2, 2005년, pp.170 - 177   피인용횟수: 1

Effects of Benzyladenine and Abscisic Acid on the Disassembly Process of Photosystems in an Arabidopsis Delayed-Senescence Mutant, ore9

Oh Min-Hyuk    (Department of Molecular Biology, Pusan National University   ); Kim Jin-Hong    (Department of Molecular Biology, Pusan National University   ); Zulfugarov Ismayil S.    (Department of Molecular Biology, Pusan National University   ); Moon Yong-Hwan    (Department of Molecular Biology, Pusan National University   ); Rhew Tae-Hyong    (Department of Biology, Pusan National University   ); Lee Coon-Hwan    (Department of Molecular Biology, Pusan National University  );
  • 초록

    Using wild-type (WT) leaves and those from an ore9 delayed-senescence Arabidopsis mutant, we investigated the delaying and accelerating effects of benzyladenine (BA) and abscisic acid (ABA), respectively, on the degradation process of the photosynthetic apparatus during dark-induced senescence (DIS). In the mutant, delays were seen for both the breakdown of chlorophyll (ChI) and the decrease in photochemical efficiency of photosystem II (Fv/Fm). More­over, each step was prolonged in the disassembly process of the Chi-protein complexes. In the presence of HA, Chi degradation was retarded to a similar extent for both the mutant and the WT, but the decrease in Fv/Fm was not. However, in the presence of AHA, the two processes were accelerated in both genotypes. Therefore, although the ore9 mutation causes this functional delayed-senescence, it may not be related to the non-functional delay that happens afterwards. In contrast, HA seems to affect both processes.


  • 주제어

    abscisic acid .   Arabidopsis .   benzyladenine .   dark-induced senescence .   photosynthesis .   stay-green mutant.  

  • 참고문헌 (43)

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  • 이 논문을 인용한 문헌 (1)

    1. 2007. "" Journal of plant biology = 식물학회지, 50(3): 291~300     

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