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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.24, no.4, 2011³â, pp.343-350
½ºÅ׺ñ¾Æ(Stevia rebaudiana Bertoni)¿¡ À־ À¯»ç¹Ì¼ÒÁß·Â, Áøµ¿ ¹× Àú¿Â󸮿¡ ÀÇÇÑ Ç×»êÈ­ Ȱ¼º º¯È­
( Changes of Antioxidant Enzymes in Stevia Plants under Clinorotation, Shaking, and Low Temperature Stresses )
ÃÖ¿ë»ó;Á¤¹®¿õ;¼Ò¿õ¿µ;ÇѰæ½Ä;¿©À¾µ¿; ÀüºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇаú;¿ì¼®´ëÇб³ ½Äǰ°úÇдëÇÐ ¿Ü½Ä»ê¾÷Á¶¸®Çаú;ÀüºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇаú;¿ì¼®´ëÇб³ º¸°Çº¹Áö´ëÇÐ È­Àåǰ¹Ì¿ëÇаú;ÀüºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¸í°úÇаú;
 
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À¯»ç¹Ì¼ÒÁß·Â, Áøµ¿ ±×¸®°í Àú¿Â°ú °°Àº ¹°¸®Àû ½ºÆ®·¡½ºÇÏ¿¡¼­ 4Àϰ£ ÀÚ¶õ ¾à¿ë½Ä¹°ÀÎ ½ºÅ׺ñ¾Æ(Stevia rebaudiana Bertoni)´Â ´ëÁ¶±¸¿¡ ºñÇØ 3.6%, 21% ±×¸®°í 8.7%ÀÇ »ýü Áß·®ÀÇ °¨¼Ò¸¦ º¸¿´´Ù. ÇÕ¼º Ç×»êÈ­¹°ÁúÀÎ AA(ascorbic acid)¿Í BHA(beta-hydroxyacetic acid)´Â ºñ±³Àû ¾àÇÑ 22%¿Í 27%ÀÇ Ç×»êÈ­ Ȱ¼ºÀ» º¸¿´´Ù. À¯»ç¹Ì¼ÒÁß·ÂÇÏ¿¡¼­ ½ºÅ׺ñ¾ÆÀÇ DPPH(2,2-diphenyl-1-picryl hydrazal)ÀÇ À½À̿ ¼Ò°ÅÈ¿°ú´Â ´ëÁ¶±¸º¸´Ù Áö¼ÓÀûÀ¸·Î ´õ ³ô°Ô ³ªÅ¸³µÀ¸³ª, Áøµ¿°ú Àú¿Âó¸®ÀÇ Ã³¸®È¿°ú´Â ±ÞÈ÷ Áõ°¡Çß´Ù°¡ Áøµ¿ÀÇ °æ¿ì´Â 6½Ã°£ ÈÄ¿¡ °¨¼ÒµÇ°í Àú¿Âó¸®ÀÇ °æ¿ì´Â 24½Ã°£ ÈÄ¿¡ ´ëÁ¶±¸ ¼öÁØÀ¸·Î °¨¼ÒµÇ¾ú´Ù. À¯»ç¹Ì¼ÒÁß·ÂÇÏ¿¡¼­ SODȰ¼ºÀº ´ëÁ¶±¸¿¡ ºñÇØ 147%, Áøµ¿°ú Àú¿Â󸮴 °¢°¢ 121%¿Í 125%·Î Áõ°¡¸¦ º¸¿´´Ù. ÀÌ»óÀÇ °á°ú·ÎºÎÅÍ À¯»ç¹Ì¼ÒÁ߷½ºÆ®·¹½º´Â ´Ù¸¥ ½ºÆ®·¹½ºº¸´Ù ½ºÅ׺ñ¾ÆÀÇ Ç×»êÈ­ Ȱ¼º¿¡ ´õ È¿°úÀûÀÎ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀÌ ºÐ¸íÇØÁ³´Ù.
A medicinal herb, Stevia rebaudiana Bertoni which is grown under physical stresses such as simulated microgravity, shaking, and low temperature for 4 days, showed fresh weight decrease of 3.6%, 21% and 8.7% compared with the respective control. On control plants, the radical scavenging value of DPPH represented 86% and 55%, respectively in the leaves and stems extracts. Relatively weak antioxidant activities of 22% and 27% were measured respectively in AA (ascorbic acid) and BHA (beta-hydroxyacetic acid) known as synthetic antioxidants. The radical scavenging effect of DPPH (2,2-diphenyl-1-picryl hydazal) in stevia plants under a simulated microgravity was observed to be consistently higher relative to the control, whereas those effects of shaking and low temperature treatments rapidly increased and then reduced after 6 hours in case of shaking process and 24 hours in case of low temperature treatment, which results had similar levels of scavenging effects to the control. The plants under simulated microgravity showed the highest level of activity with the value of 147% and the shaking and low temperature treatments showed the increases of SOD activity by 121% and 125%, respectively. From the above results, it is clarified that the simulated microgravity is more effective to the antioxidant activity than those of other abiotic stresses.
 
Ű¿öµå
Simulated microgravity;DPPH;SOD;Stevia plants;
 
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.24, no.4, 2011³â, pp.343-350
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201125136122575)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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