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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.23, no.2, 2005³â, pp.206-213
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°Ü¿ïö Àú¿Â½ºÆ®·¹½º¿¡ ÀÇÇÑ ¹®ÁÖ¶õ ÀÙÀÇ Ç×»êÈÈ¿¼Ò Ȱ¼º°ú O-J-I-P °î¼± ÆÐÅÏ
( Antioxidative Enzyme Activities and O-J-I-P Transients of Crinum asiaticum var. japonicum $B_{AK}$. Leaves under Winter Stress ) |
¿À¼øÀÚ;°í¼®Âù; Á¦ÁÖ´ëÇб³ »ý¸í°úÇаú ±âÃʰúÇבּ¸¼Ò;Á¦ÁÖ´ëÇб³ »ý¸í°úÇаú ±âÃʰúÇבּ¸¼Ò;
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º» ¿¬±¸´Â ȯ°æ¿äÀÎÀÇ º¯È, ƯÈ÷ °Ü¿ïö Àú¿ÂÀÌ ½Ä¹°Ã¼¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¤·®ÀûÀ¸·Î ¹àÈ÷±â À§ÇØ, Àú¿Â°¨¼ö¼º ½Ä¹°ÀÎ ¹®ÁÖ¶õÀ» ´ë»óÀ¸·Î °Ü¿ïö ÀÏÁֱ⿡ ÀÖ¾î¼ Ç×»êÈÈ¿¼Ò Ȱ¼º°ú O-J-I-P°î¼±ÀÇ º¯È¸¦ Á¶»çÇÏ¿´´Ù. °Ü¿ïöÀÇ superoxide dismutase¿Í peroxidaseÀÇ È°¼ºÀº ¿©¸§Ã¶¿¡ ºñÇØ ´Ù¼Ò Áõ°¡ÇÏ¿´´Ù. ƯÈ÷, peroxidase´Â °Ü¿ïö »õº®°ú ¹ã¿¡ ³ôÀº Ȱ¼ºÀ» º¸¿´À¸¸ç Ãʰܿ£¸¸ ƯÀÌÀûÀ¸·Î °ËÃâµÇ´Â isoenzymeµé·Î °üÂûÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ °Ü¿ïö ¹®ÁÖ¶õ ÀÙÀÇ O-J-I-P°î¼±¿¡¼ J, I, P-´Ü°èÀÇ Çü±¤¼¼±â°¡ ¿©¸§Ã¶¿¡ ºñÇØ ÇöÀúÇÏ°Ô °¨¼ÒÇÏ¿´´Ù. ±×¸®°í, O-J-I-P°î¼±À¸·ÎºÎÅÍ »êÃâµÈ ÁÖ¿ä Çü±¤º¯¼öµé Áß¿¡ Fm°ú $Phi_{po}$´Â °Ü¿ïö Àú¿Â¿¡ ³ëÃâµÇ´Â ±â°£ÀÌ ±æ¾îÁü¿¡ µû¶ó °¢°¢ $30%$¿Í $50%$·Î °¨¼ÒÇÏ¿´À¸¸ç, ABS/RC´Â Ãʰܿﺸ´Ù´Â ´ÊÀº °Ü¿ï¿¡ 2¹èÁ¤µµ Áõ°¡ÇÏ¿´´Ù. |
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The diurnal and seasonal variations of antioxidative enzyme activity and the O-J-I-P transients were investigated from the leaves of Crinum asiaticum var. japonicum under winter stress in natural habitat, in order to diagnose quantitatively physiological states of plants under stresses. The activities of superoxide dismutase and peroxidase increased slightly in winter. Especially, peroxidase acitivity was higher at dawn and night in winter and some isoforms were detected only in early winter. In the O-J-I-P transients, the fluorescence intensity of J, I, P steps decreased significantly in winter season, contrary to its high value in summer season. Of the chlorophyll fluorescence parameters derived from the O-J-I-P transients, Fm and $Phi_{po}$ decreased with the increase of ABS/RC depending on temperature drop in winter. |
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Ű¿öµå |
antioxidative enzymes;chlorophyll fluorescence partameters;Crinum asiaticum var. japonicum;O-J-I-P transients;winter stress; |
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ȯ°æ»ý¹° / v.23, no.2, 2005³â, pp.206-213
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200502637175487)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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