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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.17, no.3, 1999³â, pp.359-364
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Salicylic acid°¡ ´ßÀÇÀåÇ®ÀÇ ±¤ÇÕ¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ
( The Effect of Salicylic Acid (SA) on the Photosynthetic Activity in Commelina communis L. ) |
| ÀÌÁØ»ó; »óÁö´ëÇб³ »ý¸í°úÇаú;
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| »ì¸®½Ç¸¯»ê(SA)ÀÌ ´ßÀÇÀåÇ®ÀÇ ÀÙÀÇ »ýÀå, ¿±·Ï¼Ò ÇÔ·®, ±¤ÇÕ¼º´É, ±â°øÀüµµµµ¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ¿´´Ù. Hoagland ¿ë¾×¿¡ SA¸¦ ó¸®ÇÑ ÈÄ 3ÁÖ µ¿¾È ¹è¾çÇÑ ´ßÀÇÀåÇ®Àº ÀÙÀÇ ±æÀÌ, ³Êºñ, ¸éÀûÀÌ Å©°Ô °¨¼ÒÇÏ¿´´Ù. 1 mM SA¸¦ 1, 2ÁÖ Ã³¸® ½Ã¿¡ ¿±¸éÀû »ýÀåÀÌ ¾à 10%¾ïÁ¦µÇ¾úÀ¸¸ç, 3ÁÖ Â°¿¡´Â 22%¾ïÁ¦ÇÏ¿´´Ù. SA´Â ¶ÇÇÑ 2ÁÖ Â°´Â 47%±×¸®°í 3ÁÖ Â°´Â 53%¿±·Ï¼Ò ÇÔ·®À» °¨¼Ò½ÃÄ×´Ù. SA¸¦ ó¸®ÇÑ »ùÇÃÀÇ ¿±·Ï¼Ò a/b´Â 3ÁÖ Â°¿¡ ¾à 3À¸·Î Å©°Ô Áõ°¡ÇÏ¿´´Ù. SA¸¦ ºÐ¸® ¿±·Ïü¿¡ Á÷Á¢ ó¸®ÇÏ¿© ÀüÀÚÀü´ÞȰ¼ºÀ» Á÷Á¢ ÃøÁ¤ÇÏ¿´´Ù. PSII£«PSI, PSII ±×¸®°í PSIȰ¼º¿¡ SA°¡ ¿µÇâÀ» ÁÖÁö ¾Ê¾Ò´Ù. ÀÌ´Â SA°¡ Á÷Á¢ ±¤ÇÕ¼º ±âÀÛ¿¡´Â ¿µÇâÀ» ÁÖÁö ¾Ê´Â ´Ù´Â °ÍÀ» ³ªÅ¸³½´Ù. ±×·¯³ª, SA¸¦ ¿À·£ ±â°£ ó¸®ÇÏ¸é ±¤ÇÕ¼ºÀÇ °¨¼Ò´Â ¸Å¿ì ¶Ñ·ÇÇÏ°Ô °üÂûµÇ¾ú´Ù. Hoagland ¿ë¾×¿¡ SA¸¦ ó¸®ÇÑ ÈÄ 3ÁÖ µ¿¾È ¹è¾çÇÑ ´ßÀÇÀåÇ®¿¡ ´Ù¾çÇÑ ºû ±¤µµ(100~1000$mu$mo1 m¡©$^2$S¡©$^1$)¸¦ Á¶»çÇÏ¸é ¾à 23~65%ÀÇ ±¤ÇÕ¼º´ÉÀÇ ÀúÇϰ¡ ³ªÅ¸³µ´Ù. ±â°øÀüµµµµ°¡ À¯»çÇÑ ¹ÝÀÀÀ» º¸¿©ÁÖ¾ú´Ù. SA󸮱¸ÀÇ ±â°øÀº °ÅÀÇ ´ÝÇû´Ù. ¿©·¯ ±¤Á¶°Ç¿¡¼ ±â°øÀüµµµµ°¡ °°´Ù´Â °ÍÀº SA°¡ ±â°øÀÇ Á¶Àý ±â´ÉÀ» »ó½ÇÇÏ°Ô ÇÑ °ÍÀ¸·Î º¸¿©Áø´Ù. ÀÌµé °á°úµé·ÎºÎÅÍ ±¤ÇÕ¼º´É¿¡ ´ëÇÑ SAÀÇ È¿°ú´Â SAÀÚü¿¡ ÀÇÇÑ °ÍÀÌ ¾Æ´Ï¶ó °£Á¢ÀûÀÎ ´ë»ç °æ·Î¸¦ ÅëÇØ ¸Å°³µÇ´Â °ÍÀ¸·Î ÃßÃøµÈ´Ù. |
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| The effect of Salicylic acid (SA) on the leaf growth, chlorophyll content, photosynthesis, stomatal conductance in Commelina communis L. was investigated. C. communis which was grown in Hoagland solution containing 1 mM SA during 3 weeks resulted in a significant reduction of leaf length, width and area. 1 mM SA reduced about 10% of the leaf area at 1 week and 2 weeks, but inhibited 22% of the leaf area at 3 weeks. SA also showed great effect on the reduction of chlorophyll content. SA reduced 47% and 53% of chlorophyll content each at 2 weeks and 3 weeks when it was compared with the control. Chlorophyll a/b ratio in SA treated sample was increased at 3 weeks representing that SA was sensitive to chlorophyll b. The treatment of SA did not inhibit the activity of PSII£«PSI, PSII and PSI. This result indicates that SA did not show direct effect oil the photosynthetic electron transport activity. However, when C. communis was grown in Hoagland solution containing I mM SA fer long period, SA showed clear inhibition of photosyhthesis in intact leaves. The treatment of SA for 3 weeks showed about 23~65% inhibition of photosynthetic activity at various light intensity (100~1000$mu$mo1 m¡©$^2$S¡©$^1$). Similar effect was found on stomatal conductance. The treatment of SA caused an almost closure of stomata. Similar effects of stomatal conductance at various light intensity indicate a loss of normal control on stomatal mechanism. These results indicate that the effect of SA on photo-synthetic activity was not by SA itself but by indirect metabolic pathway. |
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| Ű¿öµå |
| photosynthesis;salicylic acid;stomatal conductance; |
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ȯ°æ»ý¹° / v.17, no.3, 1999³â, pp.359-364
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921494903)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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