[학위논문]한국 서·남해안 우점 염생식물의 생리생태학적 특성 Ecophysiological Characteristics of dominant Halophytic Plants in the salt marsh of southern and western coast of Korea원문보기
To investigate the ecophysiologycal characteristics of salt marsh plants, plants and soil samples were collected at their habitate. The soil pH around the investigated species was weakly alkaline. The exchangeable Ca2+, Mg2+ and K+ in the soil was relatively constant during the study period, but the...
To investigate the ecophysiologycal characteristics of salt marsh plants, plants and soil samples were collected at their habitate. The soil pH around the investigated species was weakly alkaline. The exchangeable Ca2+, Mg2+ and K+ in the soil was relatively constant during the study period, but the soil exchangeable Na+ content was variable. Phragmites communis, Zoysia sinica and Carex scabrifolia had constant leaf water content during the period. Chenopodiaceous plants had high leaf water content. Phragmites communis, Zoysia sinica and Carex scabrifolia had very high concentrations of soluble carbohydrates. However, chenopodiaceous plants had very low constant soluble carbohydrate concentrations. Chenopodiaceous plants had more Na+ and Cl- ions than K+ ions in their leaves. Carex scabrifolia accumulated similar amounts of Na+ and K+ ions in its leaves. P. communis contained a high concentration of K+ ions.
From these results, it can be concluded that the physiological characteristics salt marsh of chenopodiaceous plants are high storage capacity of inorganic ions (especially alkali cations andchloride), but monocotyledonous plant species (C. scabrifolia and P. communis) show high K+ concentrations, efficient regulation of ionic uptake (exclusion of Na+ and Cl-), and accumulation of soluble carbohydrate.
Pattern of Growth, inorganic solutes and solutes accumulation of Suaeda japonica, Artriplex gmelinii and Limonium tetragonum were studied under different salt conditions. Growth of Artriplex gmelinii was decreased at 400 mM NaCl However, dry weight of shoot was not significantly inhibited by 400 mM NaCl. Artriplex gmelinii had more Na+ and Cl- ions than K+ ions in their leaves. glycinebetaine concentration was increased by NaCl concentration. Dry weight of Suaeda japonica increased up to 400 mM NaCl .Suaeda japonica had more Na+ and Cl- ions than K+ ions in their leaves and glycien betaine concentration was increassed at 400 mM. Dry weight of Limonium tetragonum was decreased at 200 and 400 mM NaCl. Na/K ion contents Limonium tetragonum contained a high concentration of K+ ions up to 200 mM NaCl. Prolin concetration of leaves was rapidly increased at 400 mM NaCl.
The result of the study, it can be concluded that the physiological characteristics salt marsh of chenopodiaceous plants are high storage capacity of inorganic ions (especially alkali cations and chloride) and accumulation of glycine betaine, but monocotyledonous plant species (Gramineae and Cyperaceae) show high K+ concentrations, efficient regulation of ionic uptake (exclusion of Na+ and Cl-), and accumulation of soluble carbohydrate. These characteristics enable salt marsh plant to grow in saline habitate.
To investigate the ecophysiologycal characteristics of salt marsh plants, plants and soil samples were collected at their habitate. The soil pH around the investigated species was weakly alkaline. The exchangeable Ca2+, Mg2+ and K+ in the soil was relatively constant during the study period, but the soil exchangeable Na+ content was variable. Phragmites communis, Zoysia sinica and Carex scabrifolia had constant leaf water content during the period. Chenopodiaceous plants had high leaf water content. Phragmites communis, Zoysia sinica and Carex scabrifolia had very high concentrations of soluble carbohydrates. However, chenopodiaceous plants had very low constant soluble carbohydrate concentrations. Chenopodiaceous plants had more Na+ and Cl- ions than K+ ions in their leaves. Carex scabrifolia accumulated similar amounts of Na+ and K+ ions in its leaves. P. communis contained a high concentration of K+ ions.
From these results, it can be concluded that the physiological characteristics salt marsh of chenopodiaceous plants are high storage capacity of inorganic ions (especially alkali cations andchloride), but monocotyledonous plant species (C. scabrifolia and P. communis) show high K+ concentrations, efficient regulation of ionic uptake (exclusion of Na+ and Cl-), and accumulation of soluble carbohydrate.
Pattern of Growth, inorganic solutes and solutes accumulation of Suaeda japonica, Artriplex gmelinii and Limonium tetragonum were studied under different salt conditions. Growth of Artriplex gmelinii was decreased at 400 mM NaCl However, dry weight of shoot was not significantly inhibited by 400 mM NaCl. Artriplex gmelinii had more Na+ and Cl- ions than K+ ions in their leaves. glycinebetaine concentration was increased by NaCl concentration. Dry weight of Suaeda japonica increased up to 400 mM NaCl .Suaeda japonica had more Na+ and Cl- ions than K+ ions in their leaves and glycien betaine concentration was increassed at 400 mM. Dry weight of Limonium tetragonum was decreased at 200 and 400 mM NaCl. Na/K ion contents Limonium tetragonum contained a high concentration of K+ ions up to 200 mM NaCl. Prolin concetration of leaves was rapidly increased at 400 mM NaCl.
The result of the study, it can be concluded that the physiological characteristics salt marsh of chenopodiaceous plants are high storage capacity of inorganic ions (especially alkali cations and chloride) and accumulation of glycine betaine, but monocotyledonous plant species (Gramineae and Cyperaceae) show high K+ concentrations, efficient regulation of ionic uptake (exclusion of Na+ and Cl-), and accumulation of soluble carbohydrate. These characteristics enable salt marsh plant to grow in saline habitate.
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