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Çѱ¹½Ä¹°ÇÐȸ / v.36, no.4, 1993³â, pp.357-362
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°í»ç¸®»ï ÁöÇϰæÀÇ À¯°ü¼Ó ºÐ¿Á¶Á÷ ¹Ì¼¼±¸Á¶
( Ultrastructure of Vascular Meristems in the Rhizome of Botrychium ternatum ) |
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| °í»ç¸®»ïÀÇ ÁöÇϰ濡¼ 2±â»ýÀåÀÇ ±â¿øÀ» ±¸¸íÇϱâ À§ÇÏ¿© ÀüÇü¼ºÃþÀ¸·ÎºÎÅÍ À¯°ü¼Ó Çü¼ºÃþÀÇ ºÐȰúÁ¤À» ¹Ì¼¼±¸Á¶ÀûÀÎ Ãø¸é¿¡¼ °üÂûÇÏ¿´´Ù. À¯°ü¼Ó Çü¼ºÃþÀº Á¾ÀڽŰ¿¡¼¿Í °°ÀÌ ÀüÇü¼ºÃþÀ¸·ÎºÎÅÍ Á¡ÁøÀûÀÎ ºÐȰúÁ¤À» °ÅÃļ ±â¿øµÇÁö¸¸, ±× Ȱ¼ºÀº ª¾Æ¼ ȼ® ÀºÈ½Ä¹°¿¡¼¿Í °°Àº À¯ÇÑ Çü¼ºÃþÀÎ °ÍÀ¸·Î °üÂûµÇ¾ú´Ù. À¯°ü¼Ó Çü¼ºÃþÀÇ Á¡ÁøÀûÀÎ ±â¿øÀº ¼¼Æ÷ÁúÀÌ ¾ÆÁÖ ³óÈÄÇÑ ÀüÇü¼ºÃþÀ¸·ÎºÎÅÍ ¼¼Æ÷ÁúÀÌ Á¡Â÷ Èñ¹ÚÇØÁö¸ç, ¼ö°¡ ¸¹°í ¼ÒÇüÀÎ ¾×Æ÷°¡ Á¡Â÷·Î Å©±â°¡ Ä¿Áö¸é¼ ¼ö°¡ Àû¾îÁö´Â ¾×Æ÷·Î µÇ´Â Á¡ µîÀ¸·Î µÞ¹ÞħµÉ ¼ö ÀÖ´Ù. ÇÑÆí À¯°ü¼Ó Çü¼ºÃþÀÌ À¯ÇѼºÀ» º¸ÀÌ´Â Á¡Àº Èıâ À¯°ü¼Ó Çü¼ºÃþÀÌ ÁöÁú°ú¸³ µîÀÇ ÀúÀå¹° ÃàÀûÀÌ ½ÉÇÏ°í ¼¼Æ÷¼Ò±â°üÀº ¹°·Ð ¼¼Æ÷ÁúÀÌ ¸Å¿ì Èñ¹ÚÇØÁö¸é¼ ¼¼Æ÷º®ÀÌ ÀÏ¹Ý ºÐ¿Á¶Á÷¼¼Æ÷¿Í´Â ´Þ¸® »ó´çÈ÷ ºñÈĵǾî Àִ Ư¡À¸·Îµµ ¾Ë ¼ö ÀÖ´Ù. ±×·¯¹Ç·Î °í»ç¸®»ïÀÇ À¯°ü¼Ó Çü¼ºÃþÀº Á¾ÀڽŰÀÇ À¯°ü¼Ó Çü¼ºÃþÀÇ Æ¯Â¡°ú ȼ®ÀºÈ½Ä¹°ÀÇ Æ¯Â¡À» ¸ðµÎ °øÀ¯Çϰí ÀÖ´Â °ÍÀ¸·Î »ý°¢µÈ´Ù. |
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| To elucidate the origin of secondary growth in the rhizome of B. ternaturn, the developmental changes of vascular cambium was observed in ultrastructural features. The vascular cambium was gradually differentiated from procambium as in seed plants, but the cambial activity did not persist very long so that the cambial cells became a dormant state like fossil cryptogams. Dense cytoplasm of procambial cells became progressively sparse during the growth, and the tiny vesicles were fused to form numerous small vacuoles and then a few large vacuoles. These gradual changes and the occurrence of storage materials which was associated with the developmental stages might support the progressive differentiation of the cambial cells. In addition, the cessation of cambial activity could be indicated by the facts that late vascular cambial cells accumulate large lipid bodies and show very small peripheral cytoplasm and unlikely thickened cell wall, compared to other meristematic cells. Therefore. the vascular cambium showed the characteristics of both seed plants and fossil cryptogams from the view point of cambial ontogeny and activity.tivity. |
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Journal of Plant Biology / v.36, no.4, 1993³â, pp.357-362
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920116745)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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