Physiological Responses Against Salt Stress of Salix gracilistyla
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In vitro studies on salt torerance was carried out with Salix gracilistyla. Shoot growth ofplants treated with NaCl showed statistically significances among different levels ofconcentration(0~200 mM) on 1/2MS medium. Plant growth was not grown at in higherconcentration than 75 mM and plants were dead over 150 mM Nacl Browned leaf wasobserved from 14 days at higher concentration than then 75 mM NaCl, and chlorophyll contentwas dramatically decreased. Main roots and rootlet in same concentrates(75 mM) or high NaCltreatment were changed the color to black. The proline and sugar contents were dramaticallyincreased in the higher than 75 mM NaCl treatments after 14 - 15 days. To determine NaCland minerals in salt stressed plants, leaf, stem and root of in vitro plant were subjected to ICPanalysis. Na content was increased with culture days in all three parts. These results suggestthat S. gracilistyla can be used vegetative restoration in coastal wetlands reclaimed.
Abstract
In vitro studies on salt torerance was carried out with Salix gracilistyla. Shoot growth ofplants treated with NaCl showed statistically significances among different levels ofconcentration(0~200 mM) on 1/2MS medium. Plant growth was not grown at in higherconcentration than 75 mM and plants were dead over 150 mM Nacl Browned leaf wasobserved from 14 days at higher concentration than then 75 mM NaCl, and chlorophyll contentwas dramatically decreased. Main roots and rootlet in same concentrates(75 mM) or high NaCltreatment were changed the color to black. The proline and sugar contents were dramaticallyincreased in the higher than 75 mM NaCl treatments after 14 - 15 days. To determine NaCland minerals in salt stressed plants, leaf, stem and root of in vitro plant were subjected to ICPanalysis. Na content was increased with culture days in all three parts. These results suggestthat S. gracilistyla can be used vegetative restoration in coastal wetlands reclaimed.
참고문헌 (25)
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