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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.34, no.3, 2001³â, pp.185-191
µµ½ÃÇÏõÀÇ È¯°æ¿äÀΰú Euglena viridisÀÇ ÇüÅ º¯ÀÌ ¹× ¹Ðµµ¿ÍÀÇ °ü°è
( Morphological Variation and Density of Euglena viridis (Euglenophyceae) Related to Environmental Factors in the Urban Drainages )
±èÁØÅÂ;ºÎ¼º¹Î; Ãæ³²´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;Ãæ³²´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;
 
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Euglena viridisÀÇ Çüź¯ÀÌ, ¹Ðµµ ¹× ȯ°æ¿äÀΰúÀÇ °ü°è¸¦ ±Ô¸íÇϱâ À§ÇÏ¿©, ¹«½Éõ, ¹Ìȣõ, ´ëÀüõ, ÀüÁÖõ, ±¤ÁÖõ ¹× ±ÝÈ£°­ÀÇ µµ½ÃÇÏõ¿¡¼­ 1996³â 12¿ù 25ÀÏ¿¡¼­ 1997³â 1¿ù 4ÀÏ »çÀÌ¿¡ E. viridisÀÇ ÇüÅÂ¿Í ¹Ðµµ ¹× ¼öȯ°æ ¿äÀεéÀ» Á¶»çÇÏ¿´´Ù. °¢ ÇÏõ¿¡¼­ Euglena viridis´Â ÇüÅÂÀûÀ¸·Î µÎ °¡Áö ÇüÅÂÇüÀ¸·Î ±¸ºÐµÇ¾úÀ¸³ª, ¿±·Ïü°¡ º° ¸ð¾çÀÎ Á¡¿¡¼­ µ¿ÀÏÁ¾À¸·Î µ¿Á¤µÇ¾ú´Ù. ÇüÅÂÇü IÀº E. viridisÀÇ ÀϹÝÀûÀÎ ÇüÅÂ¿Í ÀÏÄ¡ÇÏ¿´°í, ´ëºÎºÐÀÇ Á¤Á¡¿¡¼­ ´ë¹ß»ýÇÏ¿© ±¤ÁÖõ¿¡¼­ ÃÖ´ë $5386;cells;{cdot};mL^{-1}$À̾ú´Ù. ÇüÅÂÇü IÀÇ ¹Ðµµ´Â ¾Ï¸ð´½°ú ¾ÆÁú»ê¿°¿¡ °¢°¢ Á¤ÀÇ »ó°ü°ü°è (r = 0.80°ú 0.68),Áú»ê¿°°ú´Â ºÎÀÇ »ó°ü°ü°è¿¡ ÀÖ¾ú´Ù. ÇüÅÂÇü II´Â ¿±·ÏüµéÀÇ °¡ÀåÀÚ¸®°¡ °ÅÄ¡ÇüÀ̸ç, ¼¼Æ÷Áú ¼Ò¸³µéÀÌ ºÒ±ÔÄ¢ÇÏ°Ô ºÐ»êµÇ¾î ÀÖ´Â Á¡ µîÀÌ Æ¯Â¡À̾ú´Ù. ÇüÅÂÇü IIÀÇ ¹Ðµµ´Â Áú»ê¿°°ú Á¤ÀÇ »ó°ü°ü°è(r = 0.98)¸¦ º¸ÀÎ ¹Ý¸é, ¾Ï¸ð´½À̳ª ¾ÆÁú»ê¿°°ú´Â °¢°¢ ºÎÀÇ »ó°ü°ü°è¿¡ ÀÖ¾ú´Ù. ±×·¯³ª µÎ °¡Áö ÇüÅÂÇüÀº °¢°¢ Àλ꿰, ¼ö¿Â ¹× pH´Â ¹Ðµµ¿Í À¯ÀÇÇÑ »ó°üÀ» º¸ÀÌÁö ¾Ê¾Ò´Ù. ÀÌ °á°ú´Â E. viridisÀÇ µÎ °¡Áö ÇüÅÂÇüµéÀÌ ¼­·Î ´Ù¸¥ Áú¼Ò¼º ¿µ¾ç¿°µéÀ» ÀÌ¿ëÇϹǷμ­ µ¿ ½Ã±â ¹× µ¿ÀÏ Áö¼Ò¿¡¼­ °øÁ¸Çϰí ÀÖ´Ù´Â °ÍÀ» º¸¿©ÁØ´Ù.
The morphological variation and density of the Euglena viridis cells and environmental factors of urban waterways of Daejoncheon , Jeonjucheon, Kwangjucheon, Kumhogang, Mihocheon,and Musimcheon, Korea were studied from 25December, 1995 to 5 January, 1997 in order toelucidate possible relationships among the bio-logical and abiological factors. All E. viridis cells were same in having single star-cluster of chlo-roplast lobes and included two morphotypes based on other detailed morphology. The morphotype I cells agreed well with the typical form off. viridrs and commonly occurred in most of waters and bloomed with $5386;cells;{cdot};mL^{-1}$ in Kwangjucheon. The density of the morphotype Ipositively correlated with ammonium (r = 0.80)and nitrite (r = 0.68), while negatively with nit-rate concentration. The morphotype II cells were characterized by having randomly scattered cytoplasmic granules beneath pellicle and unevenmargined lobes of chloroplasts. The density of the morphotype II positively correlated with nitrate (r = 0.98), while negatively correlated with ammonium and nitrite. However, the density of each morphotype was not significantly related with inorganic phosphate, temperature and pH of surface water. These results indicate that E. viridis includes two morphotypes in urban waterways in Korea, that coexist in the same period and station as a response of allocation of nitrogenous nutrients.
 
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Density;ecology;Euglena;Euglenophyceae;Eutrophic waters;Morphotypes;Nitrogenous nutrients;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.34, no.3, 2001³â, pp.185-191
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200118317177598)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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