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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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.47 No.5
- 발행연도
- 2006.10
- 수록면
- 280 - 287 (8page)
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초록· 키워드
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Effects of salicylic acid (SA) were investigated on cuttings of ‘Kyoho’ grapevine cultivar exposed to low temperature to investigate effects of SA on chilling stress. The chilling condition was 5℃ in the dark for 12 h and additive illumination of 100 μ㏖ㆍm?²ㆍs?¹ PPF for 0, 1, 2, and 3 h. One day before chilling, the cuttings were pretreated by spraying 0, 0.5, 1.0, 1.5, and 2.0 mM SA hydroponic solution onto the leaves. Under low temperature, young leaves showed lower photo system Ⅱ (PSⅡ) activities than mature leaves, but SA at 1.5 mM alleviated the decrease of photosynthetic ability. Ascorbate peroxidase (APX) activities at 25℃ were maintained as steady state, but increased at 5℃ about 200% compared with that of 25℃ at 2 h after the illumination. Catalase (CAT) activities also increased during 2 h illumination, but the similar change with less magnitude was observed at 5℃. Under low temperature, activities of peroxidase (POD) and glutathione reductase (GR) increased 3 h after illumination. Decreased H₂O₂ level at 12/2 h (dark/light) and increased H₂O₂ level at 12/3 h imply that APX and CAT would be key enzymes to remove H₂O₂’ SA increased APX activities at both 25 and 5℃. In addition, APX activities increased at 12 and 24 h, prior to chilling stress, and after SA treatment. POD also showed higher activities at 12 and 24 h after SA treatment and GR activities increased at 12 h. CAT activities were inhibited or maintained by SA under normal and low temperature. Although activities of total antioxidants decreased at 25℃ by SA, the activities were higher than those without SA spray, and increased according to time under low temperature. Higher APX, POD, and GR activities prior to chilling stress and activities of total antioxidants during chilling stress caused low H₂O₂ level in SA treated leaves. This may be a factor to alleviate reduction of PSI! activities under low temperature. Furthermore, SA spray at appropriate concentration could be used as an alleviator against chilling.
목차
Abstract
Introduction
Materials and Methods
Results and Discussion
Acknowledgement
Literature Cited
참고문헌 (48)
참고문헌 신청
[학술지(정기간행물)] - / 2005 / Role of ABA and hydrogen peroxide on antioxidant enzymes induction in wheat seedlings 169 : 559 ~ 570
[학술지(정기간행물)] - / 2001 / Impact of chilling temperatures on photosynthesis in warm climate plants 6 : 36 ~ 42
[학술지(정기간행물)] - / 1995 / Changes in isozyme profiles of catalase and glutathione reductase during acclimation to chilling in mesocotyls of maize seedlings 109 : 1247 ~ 1257
[학술지(정기간행물)] - / 1999 / The water-water cycle in chloroplasts Scavenging of active oxygens and dissipation of excess photons 50 : 601 ~ 639
[학술지(정기간행물)] - / 1994 / Photoinhibition of crop photosynthesis in the field at low temperature Photoinhibition of photosynthesis From molecular mechanisms to the field
[학술지(정기간행물)] - / 2001 / Impact of chilling temperatures on photosynthesis in warm climate plants 6 : 36 ~ 42
[학술지(정기간행물)] - / 1995 / Changes in isozyme profiles of catalase and glutathione reductase during acclimation to chilling in mesocotyls of maize seedlings 109 : 1247 ~ 1257
[학술지(정기간행물)] - / 1999 / The water-water cycle in chloroplasts Scavenging of active oxygens and dissipation of excess photons 50 : 601 ~ 639
[학술지(정기간행물)] - / 1994 / Photoinhibition of crop photosynthesis in the field at low temperature Photoinhibition of photosynthesis From molecular mechanisms to the field
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UCI(KEPA) : I410-ECN-0101-2009-525-016949394