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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.1, 2003³â, pp.34-1
µ¿¹°Çöûũſ ¹è¾ç¿©°ú¾×¿¡ ÀÇÇÑ Microcystis aeruginosaÀÇ ¼ºÀå, ÇüÅ ¹× microcystin »ý¼º·®ÀÇ º¯È­
( Change of Growth, Morphology and Microcystin Production in Microcystis aeruginosa in Response to ZOOplankton Culture Media Ziltrate )
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µ¿¹°Çöûũſ ¹è¾ç¿©°ú¾× ³»ÀÇ ºÐºñ¹°Áú(ingo-chemicals)¿¡ ÀÇÇØ À¯µµµÇ´Â Microcystis aeruginosaÀÇ ¼ºÀå, ±ÕüÇü¼º°ú µ¶¼Ò»ý¼º·®ÀÇ º¯È­¸¦ °üÂûÇÏ¿´´Ù. ¼ºÃ¼±îÁö ÀÚ¶õ µ¿¹°Çöûũſ Daphnia magna Straus¿Í Moina macrocopa StratusÀÇ ¹è¾ç ¿©°ú¾×(ZCMF)À» ºñ±³Àû ³·Àº µ¶¼Ò¸¦ »ý¼ºÇÏ´Â M. aeruginosa ¹èÁö¿¡ ÷°¡ÇØÁØ ÈÄ, ZCMFÀÇ ³óµµ¿¡ µû¸¥ ¼ºÀå½Ã±âº° ¼¼Æ÷¹ÐµµÀÇ º¯È­¸¦ °üÂûÇÑ °á°ú, Áö¼ö¼ºÀå±â(7ÀÏ ÀÌÈÄ)ºÎÅÍ, ZCMF³óµµ°¡ ³ô¾ÆÁü¿¡ µû¶ó ¼¼Æ÷¹ÐµµÀÇ °¨¼Ò°¡ °üÂûµÇ¾ú´Ù.¶ÇÇÑ 20% ZCMF¸¦ M. aeruginosa¹èÁö¿¡ ÷°¡ÇØÁØ ÈÄ, ±ºÃ¼Çü¼º º¯È­ ¹× microcystin »ý¼º·®ÀÇ º¯È­¸¦ °üÂûÇÑ °á°ú, µ¿¹° Çöûũſ 󸮱º¿¡¼­ 2~4ÀÏ Â° ±îÁö ±ºÃ¼´ç ¼¼Æ÷¼ö ¹× Æò±Õ ÀÔÀÚüÀûÀÇ Áõ°¡ Çö»óÀÌ °üÂûµÇ¾úÀ¸¸ç, ÀÌ Çö»óÀº Moina 󸮱ºº¸´Ù´Â Daphnia-󸮱º¿¡¼­ ´õ ¶Ñ·ÇÇÏ°Ô °üÂûµÇ¾ú´Ù. Microcystin »ý¼º·®ÀÇ °æ¿ì µ¿¹° Çöûũſ 󸮱º¿¡¼­ 4Àϰ ÃÖ°í°ªÀ» º¸¿©ÁÖ¾úÀ¸¸ç, ÀÌÈÄ °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´´Ù. ƯÈ÷, Daphnia 󸮱º¿¡¼­´Â 4Àϰ ÃÖ°í 70.5¡¾16.8§¶/g-dry cell±îÁö °ËÃâµÇ¾ú´Ù. M. aeruginosaÀÇ ¼ºÀåÇüÀÇ º¯È­, ±ºÃ¼¼ºÇü°ú microcystin »ý¼ºÇö»óÀº µ¿¹°ÇöûũſÀÇ ºÐºñ È­Çй°ÁúÀ» ¸Å°³·Î ÇÑ M. aeruginosaÀÇ ¹æ¾î¼ö´ÜÀ¸·Î »ý°¢µÇ¸ç, ÀÌ·¯ÇÑ ±âÀÛÀº ¼ö»ý »ýŰ賻¿¡¼­ ÇÇ¡¤Æ÷½ÄÀÚ°£ÀÇ »óÈ£°ü°è¸¦ ¼³¸íÇÒ ¼ö ÀÖ´Â ÇÑ Çö»óÀ¸·Î »ý°¢µÈ´Ù.
Growth, colony formation and microcystin production of 'low-toxic' Microcysits aeruginosa Kutzing were examined in relation to the 'info-chemicals' released by Zooplankton. Algae were cultured in a medium with or without filtered water taken from cultures of Daphnia magna Straus (300 ind./L) or Moina macrocopa Straus (500 ind./L). The growth of M. aeruginosa, based on cell number, was also significantly different from populations cultured in the media with and without filtered zooplankton water from the exponential growth phase. In the 6-day experiment, the growth pattern of M.aeruginosa cultured with ZCMF was clearly different to control without ZCMF. Mean number of cells/particle and particle bio-volume of M. aeruginosa increased significantly from the day 2 for the Daphnia-CMF of Moina-CMF treatments. Microcystin production was promoted showing from 18.7 to 55 §¶/g-dry cell in the zooplankton treatments relative to the controls. At peaked level on day 4, the highest level of up to 70.5¡¾16.8 §¶/g-dry cell was observed in the D. magna treatment. This study suggested that 'info-chemicals' from zooplankton might induce the increase of algal growth rates, colony formation and microcystin production, these seem to be advantageous to the alga and thus as a grazing defense mechanism.
 
Ű¿öµå
Microcystis aeruginosa;Daphnia magna;Moina macrocopa;growth rate;morphological change;microcystin;zooplankton culture media filtrate (ZCMF);
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.1, 2003³â, pp.34-1
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200310103401177)
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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