지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.12
- 수록면
- 659 - 664 (6page)
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The aim of this study is to determine the drought stress index through photochemical analysis in red pepper (Capsiumannuum L.). The photochemical interpretation was performed in the basis of the relation between Kautsky effect and Photosystem II (PSII) following the measurement of chlorophyll, pheophytin contents, and CO₂ assimilation in drought stressed 5-week-old red pepper plants. The CO₂ assimilation rate was severely lowered with almost 77% reduction of chlorophyll and pheophytin contents at four days after non-irrigation. It was clearly observed that the chlorophyll fluorescence intensity rose from a minimum level (the O level), in less than one second, to a maximum level (the P-level) via two intermediate steps labeled J and I (OJIP process). Drought factor index (DFI) was also calculated using measured OJIP parameters. The DFI was -0.22, meaning not only the initial inhibition of PSII but also sequential inhibition of PSI . In real, most of all photochemical parameters such as quantum yield of the electron transport flux from Quinone A (QA) to Quinone B (QB), quantum yield of the electron transport flux until the PSI electron acceptors, quantum yield of the electron transport flux until the PSI electron acceptors, average absorbed photon flux per PSII reaction center, and electron transport flux until PSI acceptors per cross section were profoundly reduced except number of QA reducing reaction centers (RCs) per PSII antenna chlorophyll (RC/ABS). It was illuminated that at least 6 parameters related with quantum yield/efficiency and specific energy fluxes (per active PSII RC) could be applied to be used as the drought stress index. Furthermore, in the combination of parameters, driving forces (DF) for photochemical activity could be deduced from the performance index (PI) for energy conservation from photons absorbed by PSII antenna until the reduction of PSI acceptors. In conclusion, photochemical responses and their related parameters can be used as physiological DFI.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (18)
참고문헌 신청
1. [학술지(정기간행물)] - Calatayud, A. / 2006 / Spatialtemporal variations in rose leaves under water stress conditions studied by chlorophyll fluorescence imaging / Plant Physiology and Biochemistry 44 (10) : 564 ~ 573
2. [단행본] - Duysens, L. M. N. / 1963 / Mechanism of the two photochemical reactions in algae as studied by means of fluorescence, In Studies on Microalgae and Photosynthetic Bacteria / University of Tokyo Press : 353 ~ 372
3. [학술지(정기간행물)] - Genty, B. / 1989 / The relationship between the quenching of chlorophyll fluorescence / Biochimica et Biophysica Acta 990 : 87 ~ 92
4. [학술지(정기간행물)] - Govindjee / 1995 / Sixty-three years since Kautsky : chlorophyll a fluorescence / J. Aust. Plant Physiol 22 : 131 ~ 160
5. [학술지(정기간행물)] - Kautsky, A. / 1960 / Chlorophyll fluoreszenz und Kohlensäureassinmilation. Ⅷ. Die Fluoreszenkurve und die Photochemie der Pflanze / Biochemische Zeitschrift 332 : 227 ~ 229
2. [단행본] - Duysens, L. M. N. / 1963 / Mechanism of the two photochemical reactions in algae as studied by means of fluorescence, In Studies on Microalgae and Photosynthetic Bacteria / University of Tokyo Press : 353 ~ 372
3. [학술지(정기간행물)] - Genty, B. / 1989 / The relationship between the quenching of chlorophyll fluorescence / Biochimica et Biophysica Acta 990 : 87 ~ 92
4. [학술지(정기간행물)] - Govindjee / 1995 / Sixty-three years since Kautsky : chlorophyll a fluorescence / J. Aust. Plant Physiol 22 : 131 ~ 160
5. [학술지(정기간행물)] - Kautsky, A. / 1960 / Chlorophyll fluoreszenz und Kohlensäureassinmilation. Ⅷ. Die Fluoreszenkurve und die Photochemie der Pflanze / Biochemische Zeitschrift 332 : 227 ~ 229
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UCI(KEPA) : I410-ECN-0101-2015-520-001031812