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Çѱ¹È¯°æ»ýÅÂÇÐȸ / v.23, no.5, 2009³â, pp.431-438
Çѱ¹»ê °Å¸Ó¸®¸»(Zostera marina L.)ÀÇ ÇØ·ù¿¡ ´ëÇÑ ÇüÅÂÀû ÀûÀÀ
( Morphological Adaptation of Zostera marina L. to Ocean Currents in Korea )
ÀÓµ¿¿Á;À±ÀåÅÃ;ÇѰæ½Ä; È£³²´ëÇб³ »ý¹°Çаú;±¹¸³¼ö»ê°úÇпø;¿ì¼®´ëÇб³ È­Àåǰ¹Ì¿ëÇаú;
 
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Çѱ¹»ê °Å¸Ó¸®¸»(Zostera marina L.)ÀÇ ÇØ·ù¿¡ ´ëÇÑ ÇüÅÂÀû ÀûÀÀ ¿¬±¸¸¦ ÅëÇØ ÇâÈÄ °Å¸Ó¸®¸»ÀÇ ¹ø½Ä¹æ¾ÈÀ» °­±¸Çϱâ À§ÇÑ ±âÃÊÀڷḦ Á¦°øÇϰíÀÚ º» ¿¬±¸¸¦ ½ÃµµÇÏ¿´´Ù. ¿µ¾çÁö´Â ÁöÇϰæ, ¿±ÃÊ ¹× ¿±½ÅÀ¸·Î ±¸¼ºµÇ¾î ÀÖ´Ù. ¿µ¾çÁöÀÇ ¿±ÃÊ´Â º¼·Ï·»ÁîÇüÀÎ 4ÃþÀÇ ÁýÇÕ¿±°ú Áß¾Ó¿¡ ºÐÈ­ÁßÀÎ 2°³ÀÇ ¼±»ó¿±ÀÌ ÀÖ´Ù. ¿ÜºÎ 4ÃþÀÇ ¿øÇüÀ¸·Î µÑ·¯ ½Ñ ¿±ÃÊ´Â ÇÑÂÊÀº 2¼¼Æ÷ÃþÀ¸·Î µÇ°í ¹Ý´ëÆíÀº À¯¼¼Æ÷°¡ ´ÙÃþ±¸Á¶¸¦ ÀÌ·ç°í, »çÀÌ»çÀÌ¿¡ Åë±âÁ¶Á÷ÀÌ ¹ß´ÞÇÏ¿´´Ù. ÀÌ·± ±¸Á¶´Â Á¦ 1¿±ÃÊ, Á¦ 2¿±ÃÊ, Á¦ 3¿±ÃÊ ¹× Á¦ 4¿±ÃÊ·Î °¡¸é¼­ ¼­·Î ±³È£ÀûÀÎ ¹è¿­ »óŸ¦ º¸¿´´Ù. ¿±½ÅºÎÀÇ ¾çÇ¥¸éºÎ Ç¥ÇǼ¼Æ÷ ÃþÀº ¿±¸ÆºÎÀ§¸¦ ÀÌ·ç´Â 1~2¼¼Æ÷·Î µÈ ÇÇÃþ¼¼Æ÷°¡ ¿¬°áµÇ¾î ÀÖ°í, ±× »çÀÌ´Â Åë±âÁ¶Á÷À¸·Î µÇ¾î ÀÖ´Ù. »ý½ÄÁö´Â ¿øÇü ¶Ç´Â Ÿ¿øÇüÀÎ ÁöÇϰæ, ÁÙ±â, Áß½ÉÈ­Ãà°ú ºÐÁöµÈ ÃøÈ­ÃàÀÎ ¼ÒÈ­ÃàÀ¸·Î ±¸ºÐµÈ´Ù. ¼ÒÈ­ÃàÀÇ À°¼öÈ­¼­´Â »ý½Ä¿±ÀÇ ÇÑÂÊ¿¡ ¹è¿­µÇ¾î ºÒ¿°Æ÷¿¡ ½Î¿© ÀÖ´Ù. ÁöÇϰæ, ÁÙ±â ¹× Áß½ÉÈ­ÃàÀº ÀüºÎ Áß¾Ó¿¡ À¯°ü¼Ó 1°³, ¾çÃø¿¡ °¢°¢ ÀÛÀº °ÍÀÌ 1°³¾¿ ÃÑ 3°³°¡ Á¸ÀçÇÏÁö¸¸, Ⱦ´ÜÇÑ ÁöÇϰæÀÇ ¸ð¾çÀº ¿øÇü, ÁÙ±â´Â À埿øÇü ±×¸®°í ¼ÒÈ­ÃàÀº º¼·Ï·»ÁîÇüÀÌ´Ù. ÁÙ±âÀÇ º¸°­Á¶Á÷Àº 12~15¼¼Æ÷ ÆøÀ¸·Î ÁöÇϰæÀÇ 7~12Ãþ º¸´Ù ´õ ¸¹Àº ¼¼Æ÷ÃþÀÌ´Ù. °Å¸Ó¸®¸» Á¾ÀÚÀÇ Á¾ÇÇ´Â ¼¶À¯»ó º¸°­Á¶Á÷ÀÌ Àß ¹ß´ÞµÇ¾î À־ ¹ß¾ÆÇϱâ Àü¿¡ ÇØ¼öÀÇ Ä§Åõ¸¦ ¸·´Â ±â´ÉÀ» Çϰí, ¿ÜºÎ¾Ð¿¡ °ßµô ¼ö ÀÖ´Â ±¸Á¶·Î ¹ß´ÞµÇ¾ú´Ù. µû¶ó¼­ º¼·Ï·»ÁîÇüÀÇ ¿±ÃÊ¿¡¼­ ¿øÇü ÁýÇÕÀÙÀº ±³È£ÀûÀÎ ´ÙÃþ»ó ±¸Á¶¸¦ ÇÔÀ¸·Î¼­ ÇØ·ùÀÇ È帧¿¡ Àß °ßµô ¼ö Àִ ź¼º±¸Á¶°í ÇüÅÂÀû ÀûÀÀÀ» º¸¿´´Ù. »ý½ÄÁö´Â ¿øÇü ¶Ç´Â Ÿ¿øÇüÀÎ °¡´Ã°í ±ä ÁÙ±â¿Í °¡Áö¸¦ ¸¸µé¾î ÇØ·ùÀÇ ¿µÇâÀ» ÃÖ¼ÒÈ­½ÃŰ´Â ÇüÅÂÀû ÀûÀÀ±¸Á¶¸¦ ¹ß´Þ½ÃÄ×´Ù.
The main purpose of this research is to prepare and provide basic materials for the propagational strategy of eelgrass by investigating on the morphological adaptation of Korean Zostera marina to ocean currents. An eelgrass plant mainly consists of rhizome, leaf sheath, leaves and roots. The rhizome is the horizontal stem of the plant that serves as the backbone from which the leaves and roots emerge. The leaf sheath is the bundle at the base of the leaves that holds the leaves together, protecting the meristem, the primary growth point of the shoot. Leaves originate from a meristem which is protected by a sheath at the actively growing end of the rhizome. As the shoot grows, the rhizome elongates, moving across or within the sediment, forming roots as it progresses. The aggregated leaves from the leaf sheath are found to have two cell layers on one side and multiple layers of airy tissues called aerenchyma on the other. The aerenchyma tissues are developed in multi-layered cell structures surrounding the veins which are formed in the leaf sheath. Generative shoots are made of rhizomes, which are circular or ovoidal, stem, and spathe and spadix. The transverse section of rhizome and the stem and central floral axis is found to be circular, ovoid and in the shape of convex respectively, and the vascular bundle, which is a part of transport system, has one large tube in the center and two small tubes on both sides. The layers of collenchyma cells numbered from 12 to 15 in the stem, and from 7 to 12 in the rhizome. The seed coat is composed of sclereids, small bundles of sclerenchyma tissues, which prevent the influx of sea water from the outside and help endure the environmental stress. In conclusion, alternative multi-layer structure in circular, convex type aggregated leaf base are interpreted to morphological adaption as doing tolerable elastic structure through movement of seawater. The generative shoots develop long slim stem and branches in circular or ovoidal shapes to minimize the adverse impacts of sea current, which can be interpreted as the plant's morphological adaptation to its environment.
 
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°Å¸Ó¸®¸»;¿µ¾çÁö;»ý½ÄÁö;¿±»ê;EELGRASS;VEGETATIVE SHOOTS;GENERATIVE SHOOTS;LEAF SHEATH;
 
Çѱ¹È¯°æ»ýÅÂÇÐȸÁö / v.23, no.5, 2009³â, pp.431-438
Çѱ¹È¯°æ»ýÅÂÇÐȸ
ISSN : 1229-3857
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200909659871904)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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