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Çѱ¹»ýÅÂÇÐȸ / v.23, no.5, 2000³â, pp.397-406
¸í¾ÆÁÖ°ú ½Ä¹°ÀÇ »ý¸®»ýÅÂÇÐÀû Ư¼º - ¹«±â ¹× À¯±â¿ëÁúÀ» ÅëÇÑ Á¢±Ù -
( Ecophysiological Characteristics of Chenopodiaceous Plants - An Approach through Inorganic and Organic Solutes - )
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°ÇÁ¶Áö´ë ¹× ¿°ÀÇ ¿µÇâÀ» ¹Þ´Â Áö¿ª¿¡ ³Î¸® ºÐÆ÷ÇÏ´Â ¸í¾ÆÁÖ°ú ½Ä¹°ÀÇ »ý¸®»ýÅÂÇÐÀû ÀûÀÀ Ư¼ºÀ» ±Ô¸íÇϱâ À§ÇÏ¿© ±³¶õÁö, ¿°½ÀÁö, »ç±¸, °£Ã´Áö µî ´Ù¾çÇÑ È¯°æ¿¡ ÀûÀÀÇÏ¿© »ì¾Æ°¡°í ÀÖ´Â 10Á¾ ¸í¾ÆÁÖ°ú ½Ä¹°ÀÇ ¹«±â ¹× À¯±â¿ëÁúÀÇ ¾ç»óÀ» Á¶»çÇÏ¿´´Ù. Á¶»çµÈ ¸í¾ÆÁÖ°ú ½Ä¹°Àº Åä¾çÀÇ Ä®½· ÇÔ·®°ú´Â ¹«°üÇÏ°Ô Ã¼³»¿¡ ¸Å¿ì ¼Ò·®ÀÇ ¼ö¿ë¼º Ä®½·À» ÇÔÀ¯ÇÏ¿´À¸¸ç, ¾ÆÁÖ ³ôÀº ¼ö¿ë¼º K/Ca ºñ¸¦ º¸¿´´Ù. Na/sup £«/, K/sup £«/¿Í °°Àº ¾çÀ̿ ¹× Cl/ sup £­/, SO©þ/sup 2£­/¿Í °°Àº À½ÀÌ¿ÂÀ» ¸¹ÀÌ ÃàÀûÇÏ´Â °æÇâÀ» º¸¿´À¸¸ç, ¿° ȯ°æ¿¡¼­´Â K/ sup £«/º¸´Ù Na/sup £«/ ÀÌ¿ÂÀ» ¼±È£ÇÏ´Â °æÇâÀ» º¸¿´´Ù. ÀÌµé ½Ä¹°ÀÇ Ã¼³» ÃÑ Áú¼ÒÇÔ·®Àº ³ô¾ÒÁö¸¸, ¾Æ¹Ì³ë»ê¼º Áú¼Ò´Â ÃÑ Áú¼ÒÇÔ·®ÀÇ 5% ÀÌÇÏ·Î ¸Å¿ì ³·Àº °ªÀ» º¸¿´´Ù. ¼¼Æ÷Áú¼º »ïÅõÀÎÀÚ·Î ³Î¸® ¾Ë·ÁÁø prolineÀ» °ÅÀÇ ÇÔÀ¯ÇÏÁö ¾Ê¾ÒÁö¸¸, °¡¿ë¼º Áú¼ÒÀÇ ÇÔ·®ÀÌ ³ôÀº °ÍÀ¸·Î º¸¾Æ proline ÀÌ¿ÜÀÇ ´Ù¸¥ Áú¼ÒÈ­ÇÕ¹°ÀÌ Ã¼³» »ïÅõ Á¶Àý¿¡ °ü¿©ÇÒ °ÍÀ¸·Î ¿©°ÜÁø´Ù. ¾ß¿Ü¿¡¼­ÀÇ ÀÌ·¯ÇÑ »ý¸®Àû Ư¡ÀÌ ÅëÁ¦µÈ ȯ°æ¿¡¼­µµ µ¿ÀÏÇÑ ¾ç»óÀ» º¸ÀÌ´ÂÁö¸¦ Á¶»çÇϱâ À§ÇÏ¿©, »ç±¸ ¹× ¿°½ÀÁöÀÇ ´ëÇ¥ÀûÀÎ ¸í¾ÆÁÖ°ú ½Ä¹°(ÅüÅü¸¶µð, Ä¥¸éÃÊ, È£¸ðÃÊ, °¡´Â°¹´ÉÀïÀÌ, ³ª¹®Àç) 5Á¾À» ¼±ÅÃÇÏ¿© ¿°È¯°æ ÇÏ¿¡¼­ »ýÀ°½ÃÄ×´Ù (200 mM Nacl). Á¶»çµÈ ¸í¾ÆÁÖ°ú ½Ä¹°Àº ¸Å¿ì ³·Àº ü³» ¼ö¿ë¼º Ca/sup 2£«/ ÇÔ·®, ¾ËÄ®¸® ¾çÀÌ¿ÂÀÇ ÃàÀû µî ¾ß¿Ü½Ä ¹°°ú À¯»çÇÑ »ý¸®¾ç»óÀ» º¸¿´´Ù. Á¾ÇÕÇϸé, ¸í¾ÆÁÖ°ú ½Ä¹°Àº ¾ËÄ®¸® ¾çÀ̿ ¹× Cl/sup £­/, NO©ý/sup £­/ ¹× SO©þ/sup 2£­/¿Í °°Àº ¹«±â À½ÀÌ¿ÂÀ» »ó´ç·® ÃàÀûÇϰí, ü³»·Î À¯ÀԵǴ Ca/sup 2£«/À» Ca-oxalate·Î ħÀü½ÃÄÑ ¼¼Æ÷Áú ³» ¼ö¿ë¼º Ä®½·ÇÔ·®À» ¸Å¿ì ³·Àº ¼öÁØÀ¸·Î À¯ÁöÇϸç, ¾Æ¹Ì³ë»êÀÌ¿ÜÀÇ ´Ù¸¥ °¡¿ë¼º Áú¼ÒÈ­ÇÕ¹°À» º¸ÆíÀûÀ¸·Î ÇÔÀ¯ÇÏ´Â ¹Ì³×¶ö ´ë»çÀÇ Æ¯¼ºÀ» º¸¿©ÁØ´Ù. ÀÌ¿¡ ºÎ°¡ÇÏ¿© Åä¾ç ȯ°æÀÇ º¯È­¿¡ µû¶ó ü³»ÀÇ ¹«±âÀ̿ ¹× À¯±â¿ëÁúÀÇ ¾ç»óÀ» ÀûÀýÈ÷ Á¶ÀýÇÏ´Â µ¶Æ¯ÇÑ »ý¸®Àû Ư¼ºÀÌ ÀÌµé ¸í¾ÆÁÖ°ú ½Ä¹°À» °ÇÁ¶ ¹× °í¿°°ú °°Àº ºÒ¸®ÇÑ È¯°æÀ» ±Øº¹ÇÏ¿© ÀûÀÀÄÉ ÇÏ´Â Åä´ë°¡ µÇ´Â °ÍÀ¸·Î ¿©°ÜÁø´Ù.
In order to clarify the ecophysiological characteristics of Chenopodiaceae which widely distribute on saline and arid habitats, we collected 10 chenopodiaceous plant species, examined their inorganic and organic solute patterns, and confirmed several common physiological characteristics. In spite of high soil Ca/sup 2£«/ contents, chenopodiaceous plants had a little water-soluble Ca within cells, but contained high contents of acid-soluble Ca particularly as a result of Ca-oxalate formation. These plant species also showed accumulation of inorganic ions such as K/sup £«/, NO©ý/sup £­/ and Cl/sup £­/, and Na/sup £«/especially in saline habitats instead of K/sup £«/ Meanwhile, with respect to nitrogen metabolism they retained high N contents in leaves, but showed very low amino acid contents. Additionally, they contained very little proline known to act as a cytoplasmic osmolyte. To ascertain whether this physiological characteristics in the field also can be found under controlled conditions, 7 chenopodiaceous plants (Atriplex gmelini, Corispermum stauntonii, Salicornia herbacea, Suaeda aspayagoides, Suaeda japonica, Chenopodium album var. centrorubrum, C. serotinum) were selected and cultivated under salt treatments. As well as field-grown plants, selected plant species showed similar solute pattern in growth experiment. In summary, the family of Chenopodiaceae represents the following physiological properties; high storage capacity for inorganic ions (especially alkali cations, nitrate and chloride), oxalate synthesis to maintain lower soluble Ca contents within cytoplasm, and low contents of amino acids. In addition to some characteristics mentioned above, the physiological plasticities of Chenopodiaceae which can properly regulate their ion and solute pattern according to soil conditions may enable its representative to grow in dry sand dune and salt marsh habitats.
 
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The Korean Journal of Ecology / v.23, no.5, 2000³â, pp.397-406
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011921336414)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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