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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.17, no.2, 1999³â, pp.199-204
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µÎ¸¨³ª¹«°ú ½Ä¹°ÀÇ SOD Ȱ¼º°ú ±¤°èIIÀÇ ±¤ÈÇÐÀû È¿À²¿¡ ¹ÌÄ¡´Â ¿Âµµ ½ºÆ®·¹½º¿Í ParaquatÀÇ ¿µÇâ
( Effects of Temperature Stress and Paraquat on SOD Activity and Photochemical Efficiency of PSII in Leaves of Araliaceae Plants ) |
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| ¿©¸§Ã¶ ÀÚ¿¬Á¶°Ç¿¡¼ ÀÚ¶ó´Â µÎ¸¨³ª¹«°ú ½Ä¹° ÀÙÀÇ SODȰ¼º°ú ±¤°èIIÀÇ ±¤ÈÇÐÀû È¿À²ÀÇ Â÷À̸¦ ºÐ¼®ÇÏ°í ¿Âµµ ½ºÆ®·¹½º¿Í paraquatÀÇ ¿µÇâÀ» Á¶»çÇÏ¿´´Ù. ±× °á°ú, µÎ¸¨³ª¹«°ú ½Ä¹° 6Á¾ÀÇ ÀÙÀ¸·ÎºÎÅÍ ÃÑ 8°³ÀÇ superoxide dismutase(SOD) isoenzymeÀÌ ±¸ºÐµÇ¾ú´Ù. ±× Áß, ¼¶¿À°¥Çdzª¹« (Acanthopanax koreanum)¿¡¼´Â µÎ¸¨³ª¹«°ú ½Ä¹°¿¡ °øÅëÀûÀÎ 2°³ÀÇ isoenzyme (SOD 4¿Í SOD 6)ÀÌ ³ôÀº Ȱ¼ºÀ¸·Î °ËÃâµÇ¾ú°í, Ȳĥ³ª¹«(Dendropanax morbifera)¿¡¼´Â µÎ¸¨³ª¹«°ú ½Ä¹°ÀÌ °®´Â 8°³ÀÇ isoenzymeÀÌ ¸ðµÎ °ËÃâµÇ¾ú´Ù. ±¤°èIIÀÇ ±¤ÈÇÐÀû È¿À²À» ³ªÅ¸³»´Â Fv/FmÀº ³«¿±¼º ½Ä¹°¿¡¼´Â ¼¶¿À°¥Çdzª¹«°¡ ´Ù¸¥ Á¾º¸´Ù ³ô¾ÒÀ¸¸ç, »ó·Ï¼º ½Ä¹°¿¡¼´Â À½Áö¿¡ À§Ä¡ÇØ ÀÖ´Â ÀÙÀÌ ¾çÁö¿¡ À§Ä¡ÇØ ÀÖ´Â ÀÙº¸´Ù Àü¹ÝÀûÀ¸·Î ³ô°Ô ³ªÅ¸³µ´Ù. ¼¶¿À°¥Çdzª¹« ÀÙ discÀÇ Fv/FmÀº ¿Âµµ°¡ ³ô¾ÆÁü¿¡ µû¶ó °¨¼ÒÇÏ¿´Áö¸¸ Ȳĥ³ª¹« ÀÙ disc¿¡¼´Â 35$^{circ}C$¿¡¼ ÇöÀúÇÏ°Ô °¨¼ÒÇÏ¿´´Ù. ±×¸®°í ¿Âµµ ½ºÆ®·¹½º¿Í ÇÔ²² paraquat¸¦ ó¸®ÇÏ¿´À» ¶§ ¼¶¿À°¥Çdzª¹«¿¡¼´Â 4$^{circ}C$¿¡¼, Ȳĥ³ª¹«¿¡¼´Â 35$^{circ}C$¿¡¼ Fv/FmÀÌ ¾ïÁ¦µÇ¾ú´Ù. ÇÑÆí, SOD Ȱ¼ºÀº ¼¶¿À°¥Çdzª¹« ÀÙ disc¿¡¼´Â 4$^{circ}C$¿Í 28$^{circ}C$¿¡¼ ³ô¾Ò°í paraquat¸¦ ÇÔ²² ó¸®ÇÏ¿´À» ¸Å¿¡´Â ¸ðµç ¿Âµµ¿¡¼ Ȱ¼ºÀÌ ³ô¾ÆÁ³´Ù. .±×·¯³ª, Ȳĥ³ª¹« ÀÙ disc¿¡¼´Â ¿Âµµ°¡ ³ô¾ÆÁü¿¡ µû¶ó SODȰ¼ºÀÌ ¾ïÁ¦µÇ¾ú°í paraquat¸¦ ÇÔ²² ó¸®ÇÏ¿´À» ¶§¿¡´Â ´õ¿í ¾ïÁ¦µÇ¾ú´Ù. µû¶ó¼, ¼¶¿À°¥Çdzª¹«´Â Ȳĥ³ª¹«¿¡ ºñÇÏ¿© ¿Âµµ ½ºÆ®·¹½º³ª »êÈÀû ½ºÆ®·¹½º¿¡ È¿À²ÀûÀ¸·Î ´ëóÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù., ½Åµ¿À¾ °í¼º¸® 57.1%(20/35), ½Åµ¿À¾ ´öõ¸® 54.5%(24/44)¸¦ ³ªÅ¸³»¾ú´Ù. µ¿°À¯¿ªÀÎ Á¤¼±±ºÀÇ 5°³ Áö¿ª¿¡¼´Â ´ã¼ö¾î 11Á¾Áß 10Á¾ÀÌ Metagonimus¼Ó Çdz¶À¯Ãæ¿¡ °¨¿°µÇ¾î ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.°ÅÀ²ÀÌ ³ô¾Ò´Ù.3)Á¤»ó ´ëÁ¶±ºº¸´Ù Ç÷Àå TGF-$eta$1 ³óµµ°¡ ³ô¾Ò´ø À§ ¾Ï ȯÀÚ¿Í Á¾¾ç ÀýÁ¦ ÀüÈÄ·Î Ç÷Àå TGF-$eta$1 ³óµµ°¡ ¹Î°¨ÇÏ°Ô º¯Çß´ø ¼Ò¾Æ °íÇü¾Ï ȯÀÚ¿¡ ´ë ÇØ¼´Â ÇâÈÄ Ç¥º» ¼ö¸¦ ´Ã·Á ºÎ°¡ÀûÀÎ ¿¬±¸¸¦ ÇØ¾ß ÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.and control at 3 WAP than others, and was higher in control at 5 WAP. Total number of harvested leaves was the highest in control with 14, which followed by KCI 2 me/L and CaCl©ü1 me/L. Nitrate content was decreased by addition of chloride in nutrient solution. Nitrate content in the 3rd and 9th leaves was significantly decreased. NR activity was higher in control and CaCl©ü addition treatments, while KCI addition treatments reduced NR activity. However, no direct relationship with nitrate was observed. Growth characteristics such leaf length and leaf width were not significantly influenced by chloride addition. |
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| The effects of temperature stress and paraquat on the superoxide dismutase (SOD) activity and the photochemical efficiency of photosystem II were studied in the leaves of Araliaceae plants. The SOD activity of Acanthopanax koreanum leaf discs increased at 4$^{circ}C$ and 28$^{circ}C$, and increased significantly at 4$^{circ}C$ ,28$^{circ}C$ and 35$^{circ}C$ in the presence of paraquat. However, the SOD activity of Dendropanax morbifera leaf discs decreased at 4$^{circ}C$, 28$^{circ}C$ and 35$^{circ}C$ regardless of paraquat treatment. The photochemical efficiency of photosystem II, Fv/Fm, of leaf discs of A. koreanum and D. morbifera fell remarkably at 35$^{circ}C$. In the presence of paraquat, the Ev/Fm values fell slightly at 4$^{circ}C$ in A. koreanum leaf discs and at 35$^{circ}C$, in D. morbifera leaf discs. These results indicate that A. koreanum plants are more resistant to temperature stress or oxidative stress than D. morbifera plants although their photochemical efficiency falls slightly at 4$^{circ}C$ in the presence of paraquat. |
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| Ű¿öµå |
| Acanthoponax koreanum;Dendropanax morbifera;Superoxide dismutase;ChlorophyII fluorescence;Temperature stress;Paraquat; |
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ȯ°æ»ý¹° / v.17, no.2, 1999³â, pp.199-204
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921494707)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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