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.
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초록· 키워드
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Pepper plants (Capsicum annuum, cv. Manitta) were subjected to different intensities of UV-B radiation to understand alterations of primary- and secondary-metabolism such as carbohydrates, phenolic compounds and polyamines. UV-B doses with a UV-B lamp (1.2 W m-2) were adjusted between 0 to 9 hr. The soluble sugars and starch contents in pepper leaves were highly influenced by UV-B treatment. The soluble sugars altered from 6.7 mg g-1 fw to 5.2 mg g-1 fw after 9 hrs of UV-B exposure. The starch contents after 3 hrs of UV-B exposure changed from 17.7 mg g-1 fw to 12.3 mg g-1 fw and then remained unchanged. The absorbance of UV-absorbing compounds reached initially maximum at all wavelengths read. On the basis of this result, we analyzed total phenolics, anthocyanin and simple free phenolic acids. Anthocyanin and free phenolic acids responded sensitively with a steady increase during UV-B treatment, although anthocyanin contents declined highly after 3 hrs of treatment. Whereas, there is no alteration of total phenolics (as gallic acid equivalent) caused by UV-B. Free polyamine levels in leaves increased rapidly and highly when UV-B was treated. The most prominent changes in polyamine induction were putrescine and spermidine (+ 70 %) after 3 hrs and spermine (+ 150 %) after 6 hrs.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
LITERATURE CITED
참고문헌 (27)
참고문헌 신청
Barsig, M. , 1998 , Effects of UV-B radiation on fine structure , carbohydrates and pigments in Polytrichum commune. Bryologist 101 : 357 ~ 365
Bestford, R. D. , 1993 , Effect of polyamines on stabilization complexes in thylakoid membranes of osmotically stressed oat leaves , Planta 189 : 201 ~ 206
Bornman, J. F. , 1998 , Ultraviolet radiation as a stress factor and the role of protective pigments In: Plants and UV-B. Responses to Environmental Change , Cambridge University Press : 157 ~ 170
Bors, W. , 1989 , Polyamine as radical scavengers and protectants against ozone damage , Phytochemistry 28 : 1589 ~ 1598
Britz, S. J , 1994 , UV-B-induced increase in specific leaf weight of cucumber as a consequence of increased starch content , Photochem. Photobiol 60 : 116 ~ 119
Bestford, R. D. , 1993 , Effect of polyamines on stabilization complexes in thylakoid membranes of osmotically stressed oat leaves , Planta 189 : 201 ~ 206
Bornman, J. F. , 1998 , Ultraviolet radiation as a stress factor and the role of protective pigments In: Plants and UV-B. Responses to Environmental Change , Cambridge University Press : 157 ~ 170
Bors, W. , 1989 , Polyamine as radical scavengers and protectants against ozone damage , Phytochemistry 28 : 1589 ~ 1598
Britz, S. J , 1994 , UV-B-induced increase in specific leaf weight of cucumber as a consequence of increased starch content , Photochem. Photobiol 60 : 116 ~ 119
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UCI(KEPA) : I410-ECN-0101-2014-521-000806709