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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.22, no.1, 2004³â, pp.233-241
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°Ü¿ïö ÀÚ¿¬È¯°æ¿¡ ³ëÃâµÈ ¹®ÁÖ¶õ ÀÙÀÇ ¿±·Ï¼ÒÇü±¤°ú Ç×»êÈÈ¿¼Ò Ȱ¼º¿¡ °üÇÑ ¿¬±¸
( Chlorophyll Fluorescence and Antioxidative Enzyme Activity of Crinum Leaves Exposed to Natural Environmental Stress in Winter ) |
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| °Ü¿ïö Àú¿Â¿¡ ÀÇÇÑ ½Ä¹°ÀÇ ¹ÝÀÀ ¹× »ý¸®Àû »óŸ¦ È®ÀÎÇϱâ À§ÇØ ¹®ÁÖ¶õ(Crinum asiaticum var. japonicum)À» ´ë»óÀ¸·Î ¿±·Ï¼ÒÇü±¤°ú Ç×»êÈÈ¿¼Ò Âù¼ºÀÇ º¯È¸¦ Á¶»çÇÏ¿´´Ù. O-J-I-P°î¼±À» ºÐ¼®ÇÑ °á°ú °Ü¿ïö¿¡ J, I, P-´Ü°è¿¡¼ÀÇ Çü±¤¼¼±â°¡ ÇöÀúÇÏ°Ô °£¼ÒÇÏ¿´´Ù. ¹®ÁÖ¶õ ÀÙÀÇ ±¤°èIIÀÇ ±¤ÈÇÐÀû È¿À², Áï Fv/FmÀº °Ü¿ïöÀÇ ¿Âµµº¯È ÃßÀÌ¿Í À¯»çÇÏ°Ô ³·Àº °ªÀ» ³ªÅ¸³»¾î °Ü¿ïö Àú¿ÂÀÌ ½ºÆ®·¹½º ¿äÀÎÀ¸·Î. ÀÛ¿ëÇÏ´Â °ÍÀ¸·Î º¸ÀδÙ. ±×¸®°í, °Ü¿ïö¿¡ superoxide dismutase, ascorbate peroxidase, peroxidase Ȱ¼º ÀÌ ´Ù¼Ò Áõ°¡ÇÏ¿´À¸³ª catalase Ȱ¼ºÀº ¿©¸§Ã¶¿¡ ºñÇÏ¿© Å©°Ô ³·¾Ò´Ù. ÀÌ·¯ÇÑ °á°ú´Â °Ü¿ïöÀÇ Fv/FmÀÇ °¨¼Ò¿Í ÇÔ²² ¹®ÁÖ¶õÀÌ °Ü¿ïö Àú¿Â¿¡ ÀÇÇØ »êÈÀû ½ºÆ®·¹½º¿¡ Ã³ÇØ ÀÖ°ÔµÇ¸ç ¼¼Æ÷»ç¸êÀÌ ÀϾ´Â °ÍÀ¸·Î ÇØ¼®µÈ´Ù. |
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| Chlorophyll fluorescence and antioxidative enzyme activity were investigated from leaves of Crinum asiaticum var. japonicum under the natural condition in winter, in order to monitor plant response and physiological states such as vitality, productivity and so on. In the O-J-I-P transients, the fluorescence intensity of J, I, P-step decreased remarkably depending on temperature drop in winter. The photochemical efficiencies of PSII, Fv/Fm, were significantly low in late winter with decrease of Fm. These results indicate that Crinum plants were affected by seasonal drop of temperature. The catalase activity significantly decreased depending on temperature drop in winter. However, the activity of superoxide dismutase ascorbate peroxidase and peroxidase slightly increased in winter while some isoenzymes appeared in winter. These results, with the remarkable decrease of Ev/Fm in winter, represent that Crinum plants were exposed to oxidative stress and subsequently damaged leading to cell death. |
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| Ű¿öµå |
| Cinum asiaticum var. japonicum;Chlorophyll fluorescence;Antioxidative enzymes;O-J-I-P transients;Low temperature; |
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ȯ°æ»ý¹° / v.22, no.1, 2004³â, pp.233-241
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922293431)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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