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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.20, no.1, 2002³â, pp.73-77
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$Cd^{2+}$¿¡ ÀÇÇÑ ´ßÀÇÀåÇ®ÀÇ »ý¸®Àû µ¶¼º¿¡ salicyclic acid°¡ ¹ÌÄ¡´Â ¿µÇâ
( The Effect of Salicylic Acid on $Cd^{2+}$-induced Physiological Toxicity in Commelina communis L. ) |
| ÀÌÁØ»ó; »óÁö´ëÇб³ »ý¸í°úÇаú;
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| 3ÁÖ°£ »ýÀåÇÑ ´ßÀÇÀåÇ®À» Hoagland¿ë¾×¿¡¼ 3ÁÖ µ¿¾È ¼ö°æ¹è¾çÇϸé¼, 100$mu$M C$d^{2+}$°ú 100$mu$M salicylic acid(SA)¸¦ ó¸®ÇÑ ÈÄ ¼ºÀå, ¿±·Ï¼Ò ÇÔÀ¯·®, ¼öºÐÆÛÅÙ¼È, ¿±·Ï¼Ò Çü±¤, ±¤ÇÕ¼º´É ¹× ±â°øÀüµµµµ¸¦ Á¶»çÇÏ¿´´Ù. Hoagland¿ë¾×¿¡ C$d^{2+}$ 󸮽à 3ÁÖ µ¿¾È 2.1cm»ýÀåÇßÀ¸³ª, ´ëÁ¶±¸´Â 7.2cm»ýÀåÇß´Ù. ¹Ý¸é¿¡ C$d^{2+}$ + SA 󸮱¸´Â 1ÁÖ µ¿¾È 0.7cmÀÚ¶úÀ¸¸ç, 2ÁÖ ÈÄ¿¡´Â »ýÀåÀÌ ¸ØÃ߰ųª °í»çµÇ¾ú´Ù. ¿±·Ï¼Ò ÇÔ·®Àº C$d^{2+}$ 󸮱¸´Â ´ëÁ¶±¸¿¡ ºñÇØ 3ÁÖ ¶§ 7% ±×¸®°í C$d^{2+}$ + SA󸮱¸´Â 86% ¾ïÁ¦µÇ¾ú´Ù. ´ëÁ¶±¸¿Í C$d^{2+}$ 󸮱¸´Â 1ÁÖ¿Í 2ÁÖ ¶§¸¦ Á¦¿ÜÇϰí´Â Á¤»óÀûÀÎ ¿±·Ï¼Ò a/b ºñÀ²À» º¸¿©ÁÖ¾úÀ¸³ª, C$d^{2+}$ + SA 󸮱¸´Â 1.6 ÀÌÇϸ¦ º¸¿©ÁÖ¾ú´Ù. Fv/Fm ÃøÁ¤ °á°ú C$d^{2+}$󸮴 Fv/Fm°ª¿¡ Å« ¿µÇâÀ» ÁÖÁö ¾Ê¾ÒÀ¸³ª, C$d^{2+}$ + SA󸮱¸´Â ´ëÁ¶±¸¿¡ ºñÇØ 2ÁÖ°£ ó¸®ÇÑ °æ¿ì 27%¾ïÁ¦ÇÏ¿´´Ù. ¼öºÐÆÛÅÙ¼ÈÀ» »ìÆìº¸¸é C$d^{2+}$ 󸮱¸´Â ´ëÁ¶±¸¿¡ ºñÇØ 1ÁÖ, 2ÁÖ, 3ÁÖ¿¡¼ 16-39% Áõ°¡µÇ¾ú´Ù. C$d^{2+}$ + SA 󸮱¸¿¡¼´Â ¼öºÐÆÛÅÙ¼ÈÀÌ 40-78% ¾ïÁ¦µÇ¾ú´Ù. $CO_2$³óµµÀÇ Â÷ÀÌ¿¡ µû¸¥ ±¤ÇÕ¼º´ÉÀº ´ëÁ¶±¸¿¡ ºñÇØ ¸ðµç ±¤ Á¶°Ç¿¡¼ C$d^{2+}$ 󸮱¸´Â 12-15%³»¿¡¼ ¾ïÁ¦µÇ¾úÀ¸³ª, C$d^{2+}$ + SA󸮱¸´Â 37-58% ¾ïÁ¦µÇ¾ú´Ù. ±â°øÀüµµµµ´Â ´ëÁ¶±¸¿¡ ºñÇØ 500°ú 1,000$mu$mo1 $m^{-2}$ $s^{-1}$±¤µµ¿¡¼ C$d^{2+}$ 󸮱¸´Â 21%¿Í 31% °¢°¢ ±â°øÀüµµµµ°¡ ¾ïÁ¦µÇ¾úÀ¸¸ç, C$d^{2+}$ + SA 󸮱¸´Â ¸ðµç ±¤Á¶°Ç¿¡¼ 14-46% ±â°øÀüµµµµ°¡ ¾ïÁ¦µÇ¾ú´Ù. ÀÌµé °á°ú·ÎºÎÅÍ C$d^{2+}$¿¡ ´ëÇÑ ³»¼º ½Ã½ºÅÛÀº ¹Ì¹ÌÇϰԳª¸¶ ÀÛµ¿µÇ³ª, C$d^{2+}$ + SA󸮱¸´Â µÎ ÈÇÕ¹°ÀÇ ÀÌÁß È¿°ú¿¡ ÀÇÇØ Àü¹ÝÀûÀÎ »ý¸® Ȱ¼ºÀ» ¾ïÁ¦ÇÏ¿©, °á±¹¿¡´Â ½Ä¹°ÀÇ °í»ç¸¦ À¯µµÇÏ´Â °ÍÀ¸·Î »ç·áµÈ´Ù. |
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| The effect of salicylic acid (SA) on C $d^{2+}$ - induced physiological toxicity in Commelina communis was investigated. 3- weeks old Commelina communis was transferred to and grown in Hoagland solution in the presence or absence of 100 $mu$M C $d^{2+}$ and SA for 3 weeks. In the treatment of C $d^{2+}$ + SA, the length of stem was increased to 0.7 cm for 3 weeks (C $d^{2+}$, 2.1cm; control, 7.2 cm). C $d^{2+}$ + SA reduced total chlorophyll content up to 86%, and changed chlorophyll a/b ratio below 1.6. C $d^{2+}$ + SA also reduced about 40-78% of water potential, but C $d^{2+}$ increased 16-39% from 1 week to 3 weeks. C $d^{2+}$ + SA also inhibited 27% of Fv/Fm, but in case of C $d^{2+}$, Fv/Fm was not changed. The treatment of C $d^{2+}$ + SA showed about 37-58% inhibition of photosynthetic activity when measured at various light intensity (500-1000 $mu$mol $m^{-2}$ $s^{-1}$ ). In the case of C $d^{2+}$ treatment, photosynthetic activity was inhibited to 12-15%. Similar effect was found in terms of stomatal conductance. Therefore, it could be concluded that the treatment of C $d^{2+}$ + SA into plant decrease or block various physiological activities and lend to die by double effects of both chemicals.cts of both chemicals.. |
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| Ű¿öµå |
| cadmium;photosynthesis;salicylic acid;stomatal conductance; |
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ȯ°æ»ý¹° / v.20, no.1, 2002³â, pp.73-77
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921492511)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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