지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The change of chlorophyll fluorescence parameters, O-J-I-P transients and psbA gene expression were investigated in the leaves of Crinum asiaticum var. japonicum on the natural condition in winter, in order to elucidate physiological responses of photosystem Ⅱ (PSⅡ) activity to winter stresses. The photochemical efficiencies of PS Ⅱ, F<sub>v</sub>/F<sub>m</sub>, were significantly low in winter, contrary to its high value in summer. The values of 1-qN and 1-qP were lower in midday than at dawn or night both in summer and winter, although their decrease in midday was less in winter than in summer. In the O-J-1-P transients, the fluorescence intensity of J, I, P-step decreased remarkably depending on temperature drop in winter. And the D1 reaction center protein of PSⅡ decreased in late winter more than in early winter, concomitantly with relatively high content of description products of psbA gene in midday. These results indicate that low temperature in winter causes irreversible damage to PSⅡ and subsequently leads to cell death.
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UCI(KEPA) : I410-ECN-0102-2023-451-001803166