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Çѱ¹½Ä¹°ÇÐȸ / v.35, no.3, 1992³â, pp.191-195
°­³¶Äá(Phaseolus vulgaris L.) Á¾ÀÚ¼º¼÷¿¡ µû¸¥ Áöº£·¼¸° ¼ö»êÈ­È¿¼Ò Ȱ¼ºÀÇ º¯È­ II. $GA_{12}$¸¦; $GA_{15}$À¸·Î º¯È¯ÇÏ´Â C20-Hydroxylase
( Changes in Gibberellin Hydroxylase Activity during Seed Maturation of Phaseolus vulgaris L. II. C20-Hydroxylase Converting $GA_{12} to GA_{15}$ )
Á¤»ó¼ö; Çѱ¹°úÇбâ¼ú¿¬±¸¼Ò À¯Àü°øÇבּ¸¼Ò ½Ä¹°¼¼Æ÷»ý¹°Çבּ¸½Ç;
 
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°­³¶Äá µÎ Ç°Á¾(Á¤»óÁ¾ÀÎ Kentucky Wonder¿Í ¿Ö¼ºÁ¾ÀÎ Masterpiece)ÀÇ ¹Ì¼º¼÷Á¾ÀڷκÎÅÍ ºÎºÐ Á¤Á¦ÇÑ GA ¼ö»êÈ­È¿¼Ò¸¦ »ç¿ëÇÏ¿© $[^{14}C]GA_{12}$À¸·ÎºÎÅÍ$;GA_{15}$ÀÇ È¿¼ÒȰ¼ºÀÇ º¯È­¸¦ Á¶»çÇÏ¿´´Ù. ¸Þź¿Ã ħÀü°ú ¼Ò¼ö¼ºÅ©·Î¸¶Åä±×·¡ÇÇ¿¡ ÀÇÇØ ºÎºÐ Á¤Á¦µÈ GA ¼ö»êÈ­È¿¼Ò Ȱ¼ººÐȹÀº È¿À²ÀûÀ¸·Î $GA_{20}$À» $GA_{1}$ °ú $GA_{5}$À» °æÀ¯ÇÏ¿© $GA_{6}$À¸·Î, $GA_{12}$À» $GA_{15},GA_{24}, GA_{9}$À» °ÅÃÄ $GA_{4}$·Î º¯È¯½ÃÄ×´Ù. µÎ ǰÁ¾ÀÇ Á¾ÀÚ¼ººÐ¿¡ µû¸¥ $GA_{12}$·ÎºÎÅÍ $GA_{15}$ÀÇ C-20 ¼ö»êÈ­È¿¼Ò Ȱ¼ºÀÇ º¯È­¿Í °­¾à¿¡´Â Â÷À̰¡ ¾ø¾ú´Ù. ´ÜÀ§ ´Ü¹éÁú C-20 ¼ö»êÈ­È¿¼Ò Ȱ¼ºÀº Á¾ÀÚ°¡ ¼º¼÷ÇÔ¿¡ µû¶ó ÇöÀúÈ÷ °¨¼ÒÇÏ¿´´Ù. ÇÑÆí ´ÜÀ§ Á¾ÀÚ´ç È¿¼ÒȰ¼ºÀº °³È­ ÈÄ 21ÀÏ ÀüÈÄ¿¡¼­ ÃÖ´ëÄ¡¸¦ ³ªÅ¸³»¾ú´Âµ¥ ÀÌ´Â $GA_{20}$ÀÇ $3{eta}$-¼ö»êÈ­È¿¼ÒȰ¼ºÀÇ º¯È­¿Í À¯»çÇÏ¿´´Ù.
Changes in activity of gibberellin C20-hydroxylase which converts $[^{14}C]GA_{12};to;GA_{l5}$ were studied during seed maturation using the partially purified enzyme preparations of two cultivars, Kentucky Wonder (normal) and Masterpiece (dwarf) of Phaseolus vulgaris. The preparations obtained by methanol precipitation and hydrophobic interaction chromatography efficiently converted; $GA_{l2};to;GA_{4},;via;GA_{15},;GA_{24};and;GA_{9};;GA_{20};to;GA_{1},;GA_{5};and;GA_{6}$. The activities of C20-hydroxylase which converts $GA_{l2};to;GA_{l5}$ were almost the same in both cultivars. The C20-hydroxylase activity per protein reached a maximum at the very early immature seed stage, followed by a subsequent rapid decrease during seed maturation, whereas the enzyme specific activity per seed reached a maximum at 21 days after flowering, and showed a similar fiuctuation to that of the 313-hydroxylase which converts $GA_{20};to;GA_{l}$ during seed maturation.ration.
 
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Journal of Plant Biology / v.35, no.3, 1992³â, pp.191-195
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920116065)
¾ð¾î : Çѱ¹¾î
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