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Çѱ¹»ýÅÂÇÐȸ / v.25, no.3, 2002³â, pp.171-177
¸í¾ÆÁÖ°ú 3Á¾ ½Ä¹°ÀÇ ¿° ȯ°æ¿¡ ´ëÇÑ ÀûÀÀƯ¼ºÀÇ ºñ±³
( Adaptations and Physiological Characteristics of Three Chenopodiaceae Species under Saline Environments )
±èÁø¾Æ;Ãß¿¬½Ä;ÀÌÀÎÁß;¹èÁ¤Áø;±èÀμ÷;Ãߺ¸Çý;¼Û½Â´Þ; °æºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;°æºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;°æºÏ´ëÇб³ ³ó¾÷»ý¸í°úÇдëÇÐ ³óÇаú;°æºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;°æºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;°æºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;°æºÏ´ëÇб³ ÀÚ¿¬°úÇдëÇÐ »ý¹°Çаú;
 
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°ÇÁ¶ ¹× ¿° ȯ°æ¿¡ ¿ìÁ¡Á¾À¸·Î ºÐÆ÷Çϰí ÀÖ´Â ¸í¾ÆÁÖ°ú ½Ä¹°ÀÇ ¿° ¹× ¹«±â ¿µ¾ç ³óµµ¿¡ µû¸¥ »ý¸®Àû ÀûÀÀƯ¼ºÀ» ºñ±³Çϱâ À§ÇØ ¿°½ÀÁö¿¡ ³Î¸® ºÐÆ÷Çϴ ĥ¸éÃÊ(Suaeda japonica), ÅüÅü¸¶µð(Salicornia herbacea) ¹× ä¼Ò·Î Àç¹èµÇ´Â ±Ù´ë(Beta vulgaris var. cicla)¸¦ Àç·á·Î ÇÏ¿© ¿° ³óµµ(0, 50, 100, 200, 400 mM NaCl) ¹× ¹«±â¿µ¾ç¿° ³óµµ(Hoagland ¿ë¾×ÀÇ 1/1, 1/5, 1/10¹è¾×)¸¦ ´Þ¸®ÇÏ¿© ½Ä¹°ÀÇ ¿±»ýÀå°ú, Áú¼Ò, ¹«±â ÀÌ¿Â, Àü±â Àüµµµµ ¹× »ïÅõÁ¶Àý¹°ÁúÀÇ º¯È­¸¦ Á¤·®ÀûÀ¸·Î ºÐ¼®ÇÏ¿´´Ù. 3Á¾ ¸í¾ÆÁÖ°ú ½Ä¹°Àº ¹«±â¿µ¾ç ¹× ¿°ÀÇ ³óµµº¯È­¿¡ ´ëÇØ ½Ä¹°Ã¼¿¡ »ó´ç·®ÀÇ ¿°À» ÃàÀûÇÏ¿´À¸¸ç, ³ôÀº ³»¿°¼º ±â±¸¸¦ ÅëÇØ 400 mM NaCl 󸮿¡¼­µµ ÇöÀúÈ÷ »ýÀåÀ» ÃËÁøÇϴ ȣ¿°¼ºÀÇ ÅüÅü¸¶µð¿Í 200 mM NaCl 󸮱îÁö ¾à°£ÀÇ »ýÀå ÃËÁøÀ» º¸ÀÌ´Â ±Ù´ë ¹× ³ôÀº ³»¿°¼ºÀ» °¡Áö¸é¼­ 50 mM NaCl ÀÌ»ó 󸮱¸¿¡¼­ ¾à°£ÀÇ »ýÀå ÀúÇØ¸¦ º¸À̴ ĥ¸éÃÊÀÇ ¼¼°¡Áö ¿°³»¼ºÀÇ Á¾ Ư¼ºÀ» º¸¿´´Ù. ¹«±âÀÌ¿ÂÀÇ µ¿Å¿¡ À־ 3Á¾ ½Ä¹°Àº ¹«±â ¿µ¾ç ¹× ¿° ³óµµ¿Í ¹«°üÇÏ°Ô Ã¼³»¿¡ ¼Ò·®ÀÇ ¼ö¿ë¼º CaÀ» ÇÔÀ¯ÇÏ¿´°í($<10{mu}M/g$ plant water), KÀÌ¿ÂÀº ¿° ³óµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó ´Ù¼Ò °¨¼ÒÇÏ¿´À¸¸ç, $Na^+$°ú $Cl^-$Àº ¹èÁöÀÇ ¹«±â ¿µ¾ç°ú´Â ¹«°üÇÏ°Ô ¿° ³óµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó ÇöÀúÈ÷ Áõ°¡ÇÏ¿´´Ù. ÃÑ Áú¼Ò ÇÔ·®Àº ¹«±â ¿µ¾ç ¹× ¿°ÀÇ ³óµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó °¨¼ÒÇÏ´Â °æÇâÀ» º¸¿´À¸¸ç, Àü±â Àüµµµµ¿Í »ïÅõ¸ô³óµµ´Â ¹«±â¿µ¾çº¸´Ù ¿°ÀÇ ³óµµ°¡ Áõ°¡ÇÔ¿¡ µû¶ó Áõ°¡ÇÏ´Â ¾ç»óÀ» º¸¿´´Ù. Glycinebetaine°ú prolineÀÇ ÇÔ·®Àº °¢°¢ $0.2{sim}2.5{mu}M/g$ plant water¿Í $0.1{sim}0.6{mu}M/g$ plant water¿´°í, 50 mM NaCl 󸮱¸¿¡¼­ ÃÖ´ëÄ¡¸¦ º¸¿´´Ù.
Three species of Chenopodiaceae, i.e. Suaeda japonica, Salicomia herbacea, Beta vulgaris var. cicla, were investigated to compare the physiological characteristics through ionic balances and osmoregulations under different environmental salt gradients. Plants were harvested in two weeks from treatments with salt gradients(0, 50, 100, 200 and 400 mM NaCl) and mineral nutrition gradients(1/1, l/5, 1/10 dilutions of Hoagland solution). Plants were analyzed for growth responses, ionic balances, osmolalities, conductivities, glycinebetaine and proline contents quantitatively. Three plants of Chenopodiaceae accumulated salts into tissues unlike some salt sensitive species, and showed unique adaptation patterns to overcome saline environments, i.e. strong growth stimulation for Salicomia herbacea, growth negative tolerance for Suaeda japonica, and growth positive tolerance for Beta vulgaris var cicla. The absorption of inorganic $Ca^{2+}$ ions was inhibited remarkably due to the excess uptake of $Na^+$ with increasing salinity. The $K^+$ content in plants was significantly reduced with increasing salinity. Total nitrogen content was reduced as mineral nutritions and salinity increases. Conductivity and osmolality increased with increasing salinity regardless of mineral nutritions. The ranges of glycinebetaine and proline contents were $0.2{sim}2.5{mu}M/g$ plant water and $0.1{sim}0.6{mu}M/g$ plant water, respectively.
 
Ű¿öµå
Ä¥¸éÃÊ;ÅüÅü¸¶µð;±Ù´ë;¿° ȯ°æ;ÀÌ¿ÂÆòÇü;Beta vulgaris var. cicla;Glycinebetaine;ionic patterns;Proline;Salicomia herbacea;Salinity;Suaeda japonica;
 
The Korean Journal of Ecology / v.25, no.3, 2002³â, pp.171-177
Çѱ¹»ýÅÂÇÐȸ
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200208813381010)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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