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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.19, no.1, 2001³â, pp.43-48
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( Diurnal and Seasonal Variation of Chlorophyll Fluorescence from Korean Fir Plants on Mt. Halla )
¿À¼øÀÚ;°íÁ¤±º;±èÀÀ½Ä;¿À¹®À¯;°í¼®Âù; Á¦ÁÖ´ëÇб³ »ý¹°Çаú;ÇѶó»ê±¹¸³°ø¿ø;¼­³²´ëÇб³ »ý¹°Çаú;Á¦ÁÖ´ëÇб³ »ý¹°Çаú;Á¦ÁÖ´ëÇб³ »ý¹°Çаú;
 
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±¸»ó³ª¹« ħ¿±ÀÇ ¿±·Ï¼ÒÇü±¤°ú »ýÀ°ÁöÀÇ È¯°æ¿äÀÎÀÇ ÀϺ¯È­¸¦ °èÀýº°·Î Á¶»çÇÏ¿© ȯ°æ¿äÀÎÀÇ º¯È­¿¡ µû¸¥ ±¸»ó³ª¹«ÀÇ È¯°æ ÀûÀÀ¼ºÀ» ±Ô¸íÇÏ¿´´Ù. ±¤°è IIÀÇ ±¤È­ÇÐÀû È¿À², Áï Fv/FmÀº °Ü¿ï¿¡´Â 0.19-0.36À¸·Î ¸Å¿ì ³·Àºµ¥ ¹ÝÇÏ¿© ¿©¸§¿¡´Â 0.8-0.86À¸·Î ³ô¾Ò´Ù. ³·½Ã°£ÀÇ Fv/FmÀÌ °Ü¿ï¿¡´Â ¾ÆÄ§, Àú³áº¸´Ù »ó´ëÀûÀ¸·Î ³ô¾Æ¼­ °Ü¿ïö Çѳ·ÀÇ È¯°æÁ¶°ÇÀÌ ±¸»ó³ª¹« ÀÙÀÇ ±¤ÇÕ¼º±â±¸¿¡ ¿ìÈ£ÀûÀ¸·Î ÀÛ¿ëÀ» ÇÏ´Â °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ¿©¸§¿¡´Â ³·½Ã°£¿¡ ±¤¾ïÁ¦°¡ ´Ù¼Ò ÀϾÁö¸¸ Fv/FmÀÌ Àü¹ÝÀûÀ¸·Î ³ô¾Æ ³·½Ã°£ÀÇ È¯°æ Á¶°ÇÀÌ ±¸»ó³ª¹«¿¡ ±¤ÇÇÇØ¸¦ ¾ß±âÇÏÁö´Â ¾Ê´Â °ÍÀ¸·Î. ÇØ¼®µÇ¾ú´Ù. ºñ±¤È­ÇÐÀû ¿±·Ï¼ÒÇü±¤ ¼Ò¸ê ´É·Â, Áï NPQ´Â °Ü¿ï¿¡´Â 0-0.01·Î ¹ã°ú ³·ÀÇ Â÷À̰¡ ¾øÀÌ ¸Å¿ì ³·¾Ò°í, ¿©¸§¿¡´Â ³·½Ã°£¿¡ 0.76À¸·Î ³ô¾Ò´Ù. µû¶ó¼­ ±¸»ó³ª¹«´Â ¿©¸§Ã¶ ȯ°æ ½ºÆ®·¹½º·ÎºÎÅÍ ±¤°è II¸¦ º¸È£ÇÏ´Â Á¶Àý ±â±¸°¡ Àß ¹ß´ÞÇÑ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. °Ü¿ï¿¡´Â Fv/FmÀÌ ¿Âµµ, ±¤·®, »ó´ë½Àµµ¿Í ¸ðµÎ Á¤ÀÇ »ó°ü°ü°è¸¦ º¸¿´À¸³ª NPQ´Â ȯ°æ¿äÀÎ ¸ðµÎ¿Í »ó°ü¼ºÀÌ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¿©¸§¿¡´Â Fv/FmÀÌ ¿Âµµ¿Í ±¤·®°ú´Â À½ÀÇ »ó°ü°ü°è¸¦ ³ªÅ¸³½ ¹Ý¸é¿¡ »ó´ë½Àµµ¿Í´Â Á¤ÀÇ »ó°ü°ü°è¸¦ º¸¿´´Ù. µû¶ó¼­ ±¸»ó³ª¹« »ýÀ°ÁöÀÇ Á¶°ÇÇÏ¿¡¼­ °Ü¿ï¿¡´Â ¿Âµµ, ±¤·®, »ó´ë½ÀµµÀÇ Áõ°¡´Â ¸ðµÎ ±¤ÇÕ¼º È¿À²À» Áõ°¡½ÃŰ´Â ¹Ý¸é¿¡ ¿©¸§¿¡´Â ³ôÀº ¿Âµµ¿Í ±¤·®ÀÌ ±¤¾ïÁ¦¸¦ ¾ß±âÇÒ ¼ö ÀÖ´Â °ÍÀ¸·Î »ç·áµÈ´Ù.
Chlorophyll fluorescence of needles of Korean fir (Abies koreana) plants and environmental factors of their natural habitat were investigated in order to obtain the information for environmental adaptation and conservation of Korean fir plants. The photochemical efficiency of photosystem II, Fv/Fm, of Korean fir needles was significantly low (0.19-0.36) in the winter, whereas it was high (0.8-0.86) in the summer. The Fv/Fm value of the winter was slightly higher at mid-day than at dawn, suggesting that mid-day environmental conditions of the winter were favorable on needles of Korean fir plants. In contrast, the mid-day Fv/Fm value of the summer maintained high (around 0.8). It indicates that mid-day environmental conditions of the summer did not induce photodamage, although it caused a slight decrease in the Fv/Fm values. The non-photochemical fluorescence quenching (NPQ) of Korean fir needles was very low (0-0.01) all through the day in the winter. However, it was high (0.76) at mid-day in the summer. These results suggest that Korean fir plants have a system for the protection of PS II from mid-day environmental stresses of the summer. In the winter, the Fv/Fm values were positively correlated with temperature, light intensity and relative humidity, although NPQ values showed no correlation with any of them. In the summer, the Fv/Fm values were positively correlated with relative humidity but negatively correlated with temperature and light intensity. These results indicate that increase of tempera-ture, light intensity and relative humidity lead to promotion of the photochemical efficiency in the winter and high temperature and light intensity may cause photoinhibition in the summer.
 
Ű¿öµå
Korean fir plants;Chlorophyll fluorescence;Photochemical efficiency of PS II;Non-photochemical fluorescence quenching;
 
ȯ°æ»ý¹° / v.19, no.1, 2001³â, pp.43-48
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111921492131)
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