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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.28, no.4, 2010³â, pp.212-217
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¿°È¼öÀº(II)°ú ÀÌ¿ÂÈ ¹æ»ç¼± 󸮿¡ µû¸¥ Åä¾ç ³» ȯÇüµ¿¹°ÀÇ DNA ¼Õ»ó ÃøÁ¤
( Evaluation of DNA Damage Induced by Mercury Chloride (II) and Ionizing Radiation in the Earthworm ) |
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| °¢Á¾ À¯Àüµ¶¼ºÇÐÀû ¹°Áú·Î ÀÎÇÑ »ý¹°Ã¼³»ÀÇ ¿µÇâÀ» Æò°¡Çغ¸±â À§ÇØ E. fetida¸¦ ´ë»óÀ¸·Î º» ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. ¿°È¼öÀº¿¡ ´ëÇÑ DNA ¼Õ»óÀ» ¾Ë¾Æº¸´Â ½ÇÇè¿¡¼´Â ³ëÃ⠽𣿡 »ó°ü¾øÀÌ ³ëÃ⠳󵵿¡ ºñ·ÊÇÑ À¯ÀüÀÚÀÇ ¼Õ»óÀÌ ³ªÅ¸³µ´Ù. ¹æ»ç¼±ÀÌ Áö··ÀÌÀÇ DNA ¼Õ»ó¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¾Ë¾Æº» ½ÇÇè¿¡¼µµ ¿ª½Ã ¹æ»ç¼± ÃÑ ¼±·®ÀÇ Áõ°¡¿¡ µû¶ó DNA ¼Õ»óÀÌ Áõ°¡ÇÏ´Â °æÇâÀ» º¸¿´´Ù. ¿°È¼öÀº¿¡ 48½Ã°£ µ¿¾È ³ëÃâ½ÃŰ°í ¹æ»ç¼±À» Á¶»çÇÑ Áö··ÀÌÀÇ ¼¼Æ÷¸¦ comet assayÇϸé, ¼öÀº ´Üµ¶ 󸮱ºÀ̳ª ¹æ»ç¼± ´Üµ¶ 󸮱º¿¡ ºñÇØ DNAÀÇ ¼Õ»óÀÌ À¯ÀÇÀûÀ¸·Î Å©°Ô ³ªÅ¸³µ´Ù. ¿°È¼öÀº°ú ¹æ»ç¼± ¸ðµÎ¿¡ º¹ÇÕó¸® µÈ Áö··ÀÌÀÇ DNA ¼Õ»óÄ¡´Â °¢°¢ ´Üµ¶ ó¸®ÇÑ Áö··ÀÌÀÇ DNA ¼Õ»óÄ¡¸¦ ÇÕÇÑ °ªº¸´Ù Å©°Ô ³ªÅ¸³ª µÎ ¿äÀÎÀÇ »ó½ÂÀÛ¿ëÀÌ È®ÀεǾú´Ù. º» ¿¬±¸¸¦ ÅëÇØ Áö··ÀÌÀÇ ¼¼Æ÷³»¿¡¼ ¼öÀº°ú ¹æ»ç¼±ÀÌ ¾ß±âÇÏ´Â DNA ¼Õ»óÀ» ÃøÁ¤Çϰí, µÎ ÀÎÀÚÀÇ º¹ÇÕ󸮿¡ µû¸¥ À¯Àüµ¶¼º »ó½ÂÈ¿°ú¸¦ °üÂûÇÒ ¼ö ÀÖ¾ú´Ù. ÀÌ´Â Á߱ݼӰú ¹æ»ç¼±ÀÇ º¹ÇÕÀûÀÎ È¿°ú¸¦ ³ªÅ¸³½ ±âÁ¸ÀÇ ¿©·¯ ¿¬±¸°á°ú¿Íµµ ºñ±³°¡ °¡´ÉÇÑ ¿¬±¸¶ó°í »ç·áµÇ¸ç, ÇâÈÄ À̸¦ º¸¿ÏÇÏ°í ´õ Á¤È®ÇÑ Æò°¡¸¦ À§ÇØ Áö··ÀÌ ¼¼Æ÷ ³»¿¡¼ÀÇ ½ºÆ®·¹½º ¹ÝÀÀ ÃøÁ¤À̳ª È¿¼Ò Ȱ¼º ½ÇÇèµîÀ» Ãß°¡·Î ¼öÇàÇÏ¿©¾ß ÇÒ °ÍÀ̶ó°í »ý°¢µÈ´Ù. |
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| Soil pollution by heavy metals has become a significant environmental concern due to a variety of human activities. Specially toxicity caused by excessive mercury exposure is now being recognized as a widespread environmental problem and is continuing to attract a great deal of public concerns. The earthworms are very important animals that aerate the soil with their burrowing action and enrich the soil by decomposing organic matters. Especially the earthworm Eisenia fetida is routinely used in ecotoxicological studies. The levels of DNA damage in earthworms treated with HgCl2 and ionizing radiation were investigated in this study. Genotoxic effects were evaluated in the earthworm's coelomocytes using the comet assay (Single Cell Gel Electrophoresis; SCGE). The results showed that the mercury chloride and radiation were responsible for the genotoxic effects on earthworms. The level of DNA damage significantly increased after the treatment of mercury chloride combined with ionizing radiation. The combined treatment of $HgCl_2$ and ionizing radiation had a greater genotoxicity. This study is amenable to further study such as enzyme activation assay. |
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| Ű¿öµå |
| mercury chloride;radiation;earthworm;comet assay (SCGE);DNA damage; |
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ȯ°æ»ý¹° / v.28, no.4, 2010³â, pp.212-217
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201015441599399)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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