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Çѱ¹½Ä¹°ÇÐȸ / v.35, no.3, 1992³â, pp.265-271
°íµî½Ä¹°¿¡¼­ IAAÇÕ¼º°ú Polyamine ´ë»ç¿¡ °üÇÑ ¿¬±¸: ´ëµÎÀÇ À¯½Ä¹°¿¡¼­ IAA°¡ Diamine OxidaseÀÇ È°¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ
( IAA Synthesis and Polyamine Metabolism in Higher Plants: Effects of IAA on the Activity of Diamine Oxidase in Seedlings of Soybean )
±èµµ±Õ; ¿¬¼¼´ëÇб³ À̰ú´ëÇÐ »ý¹°Çаú;
 
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´ëµÎÀÇ ¹ß¾Æ ÈÄ Ãʱ⠻ýÀå ´Ü°èÀÇ Á¶Á÷¿¡¼­ IAA°¡ DAO¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ °üÇÏ¿© Á¶»çÇÏ¿´´Ù. DAOÀÇ È°¼ºÀº ¹ß¾ÆÀü ÀÚ¿±¿¡¼­´Â ³ªÅ¸³ªÁö ¾ÊÀ¸³ª ¹ß¾Æ ÈÄ 3ÀÏµÈ Á¶Á÷¿¡ ³ªÅ¸³ª±â ½ÃÀÛÇÏ¿© 4ÀÏµÈ Á¶Á÷¿¡¼­ °¡Àå ³ô¾Ò°í ÀÌÈÄ ´Ù½Ã °¨¼ÒµÇ´Â °æÇâÀ» º¸¿´´Ù. ³»»ý IAA ÇÔ·®µµ 4ÀÏµÈ Á¶Á÷¿¡¼­ °¡Àå ³ô¾Ò´Ù. ±×·¯³ª, cadaverineÀÇ ÇÔ·®Àº 4ÀÏµÈ Á¶Á÷¿¡¼­ °¨¼ÒÇÏ¿´´Ù. IAA°¡ DAO¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇϱâ À§ÇÏ¿© 3ÀÏµÈ Á¶Á÷¿¡ ´Ù¾çÇÑ ³óµµ·Î ó¸®ÇÏ¿´´Ù. Àú³óµµ($10^{-7}-10^{-6}M$) IAA 󸮱¸¿¡¼­´Â ´ëÁ¶±¸¿¡ ºñÇÏ¿© Ȱ¼ºÀÌ Áõ°¡ÇÏ¿´À¸³ª °í³óµµ($10^{-5}-10^{-4}M$) IAA 󸮱¸¿¡¼­´Â ´ëÁ¶±¸¿Í À¯»çÇÑ È°¼ºÀÌ Á¶»çµÇ¾ú´Ù. DAOÀÇ È°¼º º¯È­¿Í´Â ´Þ¸® cadaverineÀÇ ÇÔ·®Àº °í³óµµ IAA 󸮱¸¿¡¼­ Áõ°¡ÇÏ¿´´Ù. ÇÑÆí, °í³óµµ IAA 󸮱¸¿¡¼­´Â ¿¡Æ¿·»ÀÌ ¹ß»ýÇÏ¿´´Ù. µû¶ó¼­, ¿¡Æ¿·»ÀÌ DAOÀÇ È°¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» º¸±â À§ÇÏ¿© NDE¸¦ ó¸®ÇÑ °á°ú DAOÀÇ È°¼º¿¡´Â ¾Æ¹«·± ¿µÇâµµ ¹ÌÄ¡Áö ¾Ê´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Vie investigated the effect of indole acetic acid (IAA) on diamine oxidase (DAO; EC 1.4.3.6) in the seedling of soybean (Glycine max L. forma Paldalkong). DAO activity was not detected in the resting soybean seeds. During germination it appeared in the elongating zone on day 3, increased up to day 4 and decreased thereafter. Endogenous IAA content has been shown the same pattern as DAO activity. However, cadaverine content was reduced on day 4. To investigate the effect of IAA on DAO activity, the segments of hypocotyl on day 3 were soaked in various concentration of IAA. The activity increased at low concentrations ($10^{-7}-10^{-6}M$) of 1M as compared to that of control but not at high concentrations ($10^{-5}-10^{-4}M$) of IAA. Differing from DAO activity, cadaverine content increased as concentrations of IAA increased. On the other hand, ethylene was induced by IAA at high concentrations. To study the effect of ethylene on DAO activity, we cotreated IAA and 2,S-Norbonadiene (NDE). In this case, DAO activity was not affected.fected.
 
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Journal of Plant Biology / v.35, no.3, 1992³â, pp.265-271
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920116161)
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