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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.33, no.1, 2000³â, pp.9-22
CyanobacteriaÀÇ ºÐÇØ¿¡ µû¸¥ MicrocystinsÀÇ º¯È­
( Degradation of Microcystins during the Decomposition Process of Cyanobacterial Cells )
½ÅÀç±â;ÀÓ¼º¾Æ;ÃÖÀÏȯ; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;
 
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º» ¿¬±¸¿¡¼­´Â ³²Á¶·ùÀÇ µ¶¼º¹°Áú ¹èÃâ ¹× ºÐÇØ¾ç»óÀ» ¹àÈ÷°íÀÚ ´ëû´ï Áö·ùÀÎ ¿ÁõõÀÇ ½ºÄÄÀ» äÃë, ½ÇÇè´ë»óÀ¸·Î ÇÏ¿´´Ù. Light¿Í dark »óÅ·ΠºÐ¸®${cdot}$¹è¾çÇÑ ¹èÁö¿¡´Â Á¶»ç¸¦ ÇÏ´Â µ¿¾È ´Ù¸¥ ¿µ¾ç¿°·ù´Â ÷°¡ÇÏÁö ¾Ê¾Ò´Ù. ±× °á°ú ¼¼Æ÷³»¿¡¼­ microcystinsÀÇ ÃÑ·®Àº ¼¼Æ÷¼ö°¡ °¨¼ÒÇÔ¿¡ µû¶ó °¨¼ÒÇÏ¿´À¸¸ç Microcystis aeruginosaÀÇ ÇöÁ¸·®°ú ºñ±³ÇÏ¿´À» ¶§ light¿Í dark »óÅÂÀÇ °æ¿ì $r^{2}$°ªÀÌ °¢°¢ 0.96°ú 0.97·Î ³ôÀº »ó°ü°ü°è¸¦ º¸¿´°í dark »óÅ¿¡¼­ º¸´Ù ´õ ºü¸¥ °¨¼ÒÃß¼¼¸¦ º¸¿´´Ù. ¶ÇÇÑ ¼¼Æ÷¿¡¼­ ¼öü·Î ¿ëÁ¸µÇ´Â microcystinsÀÇ ·®Àº ¼¼Æ÷³»¿¡ Á¸ÀçÇÏ´Â ¾çÀÇ ±ØÈ÷ ÀϺÎÀÓÀ» È®ÀÎ ÇÒ ¼ö ÀÖ¾ú°í ¼¼Æ÷³»¿¡ ºÐÆ÷ÇÏ´Â microcystinsÀÇ ³óµµ´Â Á¾·ù¿¡ µû¶ó Â÷À̸¦ º¸¿© microcystin-RR>-LR>-YRÀÇ ¼øÀ¸·Î Á¸ÀçÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÀÌ·¯ÇÑ °á°ú´Â ¿ÁÁ¤È£°ú Á¦ÃµÃµÀ» ´ë»óÀ¸·Î ÇÑ ¼ö½Éº° Á¶»ç¿¡¼­µµ µ¿ÀÏÇÑ ¾ç»óÀ» º¸¿´´Ù. ¼öü¿¡¼­ °ËÃâµÈ microcystinsÀÇ ¾çÀº Á¡¼º¹°ÁúÀÇ ¾ç°ú ÇÔ²² light¿Í dark »óÅ¿¡ µû¶ó ¶Ñ·ÇÇÑ Â÷À̸¦ º¸¿´À¸¸ç lightÀÇ °æ¿ì $r^{2}$°ªÀÌ -0.75ÀÇ ¿ªÀÇ »ó°ü°ü°è¸¦ º¸¿´´Ù. ³²Á¶·ù ¼¼Æ÷ ¹× microcystins¿¡ ´ëÇÑ light¿Í dark »óÅ¿¡¼­ÀÇ ¼­·Î ´Ù¸¥ ³óµµ °á°ú´Â ¹è¾ç »óÅ¿¡ µû¸¥ ¹Ì»ý¹°ÀÇ ºÐÇØ¾ç»óÀÇ Â÷ÀÌ¿Í ¹Ì»ý¹°¿¡ ´ëÇÑ Á¡¼º¹°ÁúÀÇ ¿µÇâÀ¸·Î ÃßÁ¤µÈ´Ù.
The decomposition processes of Microcystis aeruginosa under the light and dark conditions were investigated in relation to the change of microcystins, physicochemical and biological factors. Cyanobacterial cells from upper stream of Lake Dae-chong were collected and incubated in the matrix of raw water under the light and dark conditions without additional nutrients. The decomposition of Microcystis cells started from beginning of the experiment and most of the cells were decomposed on 12th day. Under the light condition the concentration of toxins in filtrate fractionwas increased with the increase of viscosity as the decomposition of algal cells proceed whereas no significant change was observed under the dark condition. Microcystin- RR was most labile toxin than the other two microcystins because it was identified mainly in lyophilized cells but detected at trace level in the filtratefraction.
 
Ű¿öµå
Decomposition;Cyanobacteria;Microcystis aeruginosa;Viscosity;Microcystins;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.33, no.1, 2000³â, pp.9-22
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200018317175165)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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