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Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.17, no.1, 1999³â, pp.21-26
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( Protective Effect of Pesticide on Radiation-Induced Cell Damage in Tradescantia 4430 Stamen Hairs ) |
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| »ìÃæÁ¦¿Í ¹æ»ç¼±ÀÌ ÀÚÁÖ´Þ°³ºñ ¼ö¼úÅÐ µ¹¿¬º¯ÀÌ¿¡ ¹ÌÄ¡´Â º¹ÇÕÀû ¿µÇâÀ» Æò°¡ÇÏ¿´´Ù. Æ÷Æ®¿¡¼ »ýÀ°µÈ Tradescantia 4430 ½Ä¹°Ã¼¿¡ ÄÚ¹ßÆ® ¼±¿øÀ¸·ÎºÎÅÍ 0.3, 0.5, 1.0 ¹× 2.0 GyÀÇ °¨¸¶¼±À» Á¶»çÇÏ¿´´Ù. »ìÃæÁ¦´Â °¨¸¶¼± Á¶»ç 24½Ã°£ Àü¿¡ ³ó¾÷¿ëÀ¸·Î »ç¿ëµÇ´Â ÆÄ¶óÄ¡¿Â À¯Á¦¸¦ »ìÆ÷ÇÏ¿´´Ù. CT ½ÇÇ豺°ú Pa+${gamma}$½ÇÇ豺¿¡ ÀÖ¾î¼ÀÇ µ¹¿¬º¯ÀÌ ºóµµ°¡ Áõ°¡ÇÑ °íÁ¶±â°£Àº ¹æ»ç¼± Á¶»ç ÈÄ 7 ~ 11ÀÏ·Î µ¹¿¬º¯ÀÌ ºóµµ´Â ¹æ»ç¼±·® Áõ°¡¿¡ µû¶ó ¼±ÇüÀûÀ¸·Î Áõ°¡ÇÏ´Â ¹ÝÀÀ°ü°è¸¦ º¸¿´´Ù. CT ½ÇÇ豺¿¡¼ÀÇ ¼±·®¹ÝÀÀ½Ä ±â¿ï±â (Áõ°¡°è¼ö)´Â 5.99 ($r^2$=0.988)À̾úÀ¸³ª, Pa+${gamma}$ ½ÇÇ豺ÀÇ Áõ°¡°è¼ö´Â 3.43 (r$x^-2$=0.981)À¸·Î CT ½ÇÇ豺ÀÇ °ª¿¡ ºñÇØ Çö°ÝÈ÷ ³·¾Ò´Ù. Áï Pa+${gamma}$ ½ÇÇ豺ÀÌ CT Á¶»ç±º¿¡ ºñÇÏ¿© ¹æ»ç¼±¿¡ ÀÇÇÑ µ¹¿¬º¯ÀÌ À¯¹ß Áõ°¡À²ÀÌ 43%¾ïÁ¦µÊÀ» È®ÀÎÇÒ ¼ö ÀÖ¾úÀ¸¸ç ÀÌ´Â »ìÃæÁ¦ Àü󸮰¡ ¹æ»ç¼±¿¡ ÀÇÇÑ ¼¼Æ÷À¯Àü¹°Áú ¼Õ»óÀ» ¿ÀÈ÷·Á Àú°¨½ÃŰ´Â È¿°ú¸¦ ³ªÅ¸³½ °ÍÀ̱⠶§¹®ÀÌ´Ù. ÀÌ °°Àº ½ÇÇè°á°ú´Â µÎ °¡Áö ºÒ¸®ÇÑ ÀÚ±ØÀÌ º¹ÇÕÀûÀ¸·Î ÀÛ¿ëÇÒ ¶§ ÀϹÝÀûÀ¸·Î ³ªÅ¸³ª´Â °øÁ¶ÀÛ¿ë°ú´Â »ó¹ÝµÇ´Â °á°úÀÌ¸ç ¿ÀÈ÷·Á ÆÄ¶óÄ¡¿Â Àü󸮿¡ ÀÇÇØ ½Ä¹°Ã¼°¡ º¸´Ù °ÇÑ Àڱؿ¡ ´ëºñÇÒ ¼ö ÀÖµµ·Ï À¯µµµÇ´Â ÀûÀÀ¹ÝÀÀÀÌ À¯¹ßµÇ¾ú°Å³ª ¹æ»ç¼±È¿°ú¿¡ ´ëÇÑ º¯ÈÀÛ¿ëÀÌ ³ªÅ¸³ °ÍÀ¸·Î ÇØ¼® °¡´ÉÇÏ´Ù. |
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| To investigate the combined effect of radiation and pesticide on Tradescantia somatic cell mutations, potted plants of Tradescantia 4430 on which parathion had been sprayed evenly 24 hours before irradiation. Radiation doses were 0.3, 0.5, 1.0 and 2.0 Gy of gamma-ray. The plants irradiated only with the gamma-ray radiation were used as control groups (CT). Pink mutation frequency increased linearly proportional to the radiation dose and the peak interval of elevated mutation frequencies appeared during 7 ~ 11 days after irradiation in both CT and Pa +${gamma}$ groups. The slope of dose -response curve in CT was 5.99 ($r^2$= 0.988), while it was 3.43 (r$x^-2$=0.981) in Pa+${gamma}$. It seemed that parathion pretreatment had a protective effect against radiation-induced cell damages since it decreased the slope value by 43%. It is suggested that an adaptive response or radiomodification could be induced in irradiated stamen hair cells by parathion pretreatment. |
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| Ű¿öµå |
| pesticide;pink mutation;radiation;Tradescantia; |
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ȯ°æ»ý¹° / v.17, no.1, 1999³â, pp.21-26
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921494475)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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