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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.22, no.5, 2009³â, pp.461-466
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¸¶ ÃßÃâ¹°ÀÌ ¹æ»ç¼±Ã³¸® ½Ä¹°¼¼Æ÷ÀÇ »ýÀå°ú ÇÙ DNA ¼Õ»ó¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effects of Yam (Dioscorea batatas Dence) Extracts on the Growth and Nucleus-DNA Damage of the Plant Cells Treated with $gamma$-Radiation ) |
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| ½Ä¹°¼¼Æ÷¿¡ ¸¶(Dioscorea batatas Dence) ÃßÃâ¾×ÀÇ Àü󸮰¡ ¹æ»ç¼± ½ºÆ®·¹½º¿¡ ³ëÃâµÈ ¹è¾ç¼¼Æ÷ÀÇ È°·Â, »ýÀå ¹× ÇÙ DNA ¼Õ»ó¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÏ¿´´Ù. ¸¶ÀÇ ºÐȹÃßÃâ¹° Áß EtOAc ºÐȹÃßÃâ¹°À» ½Ä¹°¼¼Æ÷¿¡ Àüó¸®Çϰí 20 GyÀÇ ¹æ»ç¼±¿¡ ³ëÃâ½Ã۸é, ¸¶ ÃßÃâ¹°À» Àüó¸®ÇÏÁö ¾Ê°í ¹æ»ç¼± 20 Gy¸¸ ó¸®ÇÑ ¼¼Æ÷º¸´Ù ¼¼Æ÷ÀÇ È°·Â°ú »ýüÁßÀÌ 20%ÀÌ»ó Áõ°¡ÇÏ¿´´Ù. Comet ºÐ¼®¿¡¼ ²¿¸®ºÎºÐÀÇ ±æÀÌ (T)¿Í ¸Ó¸®ºÎºÐÀÇ ±æÀÌ (H)¸¦ ÃøÁ¤ÇÏ¿© T/H ºñÀ²À» Á¶»çÇÏ¿´´Ù. ¹«Ã³¸® ¼¼Æ÷¿Í ¹æ»ç¼± 20 Gy¸¦ ó¸®ÇÑ ¼¼Æ÷ÀÇ T/H ºñÀ²Àº °¢°¢ 1.05 ¹× 1.68·Î ³ªÅ¸³µ°í, head DNA ·®Àº °¢°¢ 86.7% ¹× 71.3%·Î ¹«Ã³¸® ¼¼Æ÷¿Í ¹æ»ç¼±À» ó¸®ÇÑ ¼¼Æ÷°£¿¡´Â Å« Â÷À̸¦ º¸¿©, ¹æ»ç¼±¿¡ ÀÇÇÑ ½É°¢ÇÑ ÇÙ DNA ¼Õ»óÀ» °üÂûÇÒ ¼ö ÀÖ¾ú´Ù. ±×·¯³ª ¸¶ ÃßÃâ¹° Áß MeOH, EtOAc ¹× n-BuOH ºÐȹÃßÃâ¹°À» ½Ä¹°¼¼Æ÷¿¡ Àüó¸®Çϰí 20 Gy ¹æ»ç¼±À» ó¸®Çϸé, T/H ºñÀ²Àº °¢°¢ 1.37, 1.01 ¹× 1.10À̾ú°í, head DNA·®Àº 81.5%, 87.6% ¹× 88.7%·Î ¹æ»ç¼±À» ó¸® ÇÏÁö ¾ÊÀº ¹«Ã³¸® ¼¼Æ÷ ¼öÁØÀ¸·Î ȸº¹µÇ¾ú´Ù. |
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| This study was carried out to evaluate the effects of yam (Dioscorea batatas Dence) extracts on the cell viability, growth and nucleus-DNA damage of tobacco cells which were exposed to $gamma$-radiation stress. The viability and growth of tobacco cells exposed to 20 Gy of radiation stress were effectively recovered by pretreatment of 10 mg/L ethylacetate (EtOAc) yam extract. Pretreatment of EtOAc extract showed 20% higher cell viability and fresh weight growth than that of cells without pretreatment in 20 Gy radiation treated tobacco cells. Nucleus-DNA damage was measured as the ratio of tail length (T) to head length (H) in individual comet image isolated from tobacco cells. The T/H ratio of control-cells and treated-cells at 20 Gy were 1.05 and 1.68, and % head DNA of those cell were 86.7 and 71.3%, respectively, suggesting that nuclei of tobacco cells were severely damaged in the integrity of DNA by the treatment of $gamma$-radiation. However, pretreatment of MeOH, EtOAc and n-BuOH extracts decreased radiation induced DNA-damage in the tobacco cells, showing T/H ratio of 1.37, 1.01 and 1.10 and % head DNA of 81.5, 87.6 and 88.7%, respectively. |
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| Ű¿öµå |
| Chinese yam extracts;Comet assay;Radiation;Nucleus-DNA damage; |
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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.22, no.5, 2009³â, pp.461-466
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200934939665751)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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