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  • KOREAN
  • P-ISSN2287-8327
  • E-ISSN2288-1220
  • SCOPUS, KCI

ISSN : 2287-8327

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Vol.27 No.6

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Inorganic and Organic Solute Pattern of Costal Plants, Korea

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2004, v.27 no.6, pp.355-361



& (2004). Inorganic and Organic Solute Pattern of Costal Plants, Korea. Journal of Ecology and Environment, 27(6), 355-361.

Abstract

In order to elucidate the ecophysiological characteristics of coastal plants, we collected them on salt marsh and sand dune, and analyzed inorganic (Na+, K+, Mg2+, Ca2+) and organic solutes (soluble carbohydrate, glycine betaine). Chenopodiaceous plant species (Atriplex gmelini, Salicornia europaea, Salsola collina, Suaeda glauca, Suaeda japonica) showed a tendency to accumulate inorganic ions such as Na+ and Cl- instead of K+. However, Chenopodium serotinum which lives in ruderal habitat contained more K+ and less Na+ than the other Chenopodiaceous plants. Most Chenopodiaceous plant species maintained very low level of soluble Ca2+ and relatively low concentration of carbohydrates and showed high concentration of glycine betaine which is among the most effective known compatible solutes in the leaves of plant under drought and saline conditions. On the other hand, plant species which belong to Gramineae (Ishaemum anthephoroides, Phragmites communis, Zoysia sinica) and Cyperaceae (Carex kobomugi, Carex pumila) absorbed K+ selectively and excluded Na+ and Cl- effectively regardless of habitat conditions, and they accumulated more soluble carbohydrate as osmoticum than Chenopodiaceous plants. These results suggested that physiological characteristics such as high storage capacity for inorganic ions (especially alkali cations, chloride) and the accumulation of glycine betaine in chenopodiaceous plants and K+preponderance, an efficient regulation of ionic uptake (exclusion of Na+ and Cl-) and the accumulation of soluble carbohydrate in monocotyledonous plants enable them to grow dry and saline habitats.

keywords
Carbohydrate, Coastal plant, Glycine betaine, Inorganic ions, Organic solutes, 글리신베타인, 당, 무기이온, 유기용질, 해안식물

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