Growth and mineral (Cs) absorption of glasswort (Salicornia europaea L.) cultivated in flowerpot soil watered with solar salt solution
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Growth and mineral absorption of glasswort cultivated in flowerpot soil watered with 1, 2, and 3% solar salt solution was evaluated in relation to soil bacterial variation. Seedlings of glasswort naturally germinated in tidal mudflat were transplanted to flowerpots along with soil from the tidal mudflat field and further cultivated in the laboratory. The flowerpots were watered with 1, 2, and 3% (w/v) solar salt solution including 50 mg/L of Cs <please add what Cs full term before abbreviation i.e. cesium (Cs)> inducing pot soil to be more saline and contaminated with Cs. One, three, and seven of the 36 glassworts were cultivated in 1, 2, 3% saline soil withered <lacks meaning>. The total dry weight of glasswort grown in 1, 2, and 3% saline soil for 60 days was approximately 493, 335, and 225 g, respectively. Contents of K, Cs, Mg, Ca, and Fe accumulated in glasswort decreased but content of Na accumulated in glasswort increasing proportionally with the increase of soil salinity. Bacteria detected from the 1, 2, and 3% saline soil by temperature gradient gel electrophoresis resulted in the discovery of 30, 24, and 17 species, respectively. Thus, a soil salinity of above 1% may be an environmental factor to physiologically limit growth and mineral absorption of glasswort, therefore leading to increased variation of soil bacterial community.
Abstract
Growth and mineral absorption of glasswort cultivated in flowerpot soil watered with 1, 2, and 3% solar salt solution was evaluated in relation to soil bacterial variation. Seedlings of glasswort naturally germinated in tidal mudflat were transplanted to flowerpots along with soil from the tidal mudflat field and further cultivated in the laboratory. The flowerpots were watered with 1, 2, and 3% (w/v) solar salt solution including 50 mg/L of Cs <please add what Cs full term before abbreviation i.e. cesium (Cs)> inducing pot soil to be more saline and contaminated with Cs. One, three, and seven of the 36 glassworts were cultivated in 1, 2, 3% saline soil withered <lacks meaning>. The total dry weight of glasswort grown in 1, 2, and 3% saline soil for 60 days was approximately 493, 335, and 225 g, respectively. Contents of K, Cs, Mg, Ca, and Fe accumulated in glasswort decreased but content of Na accumulated in glasswort increasing proportionally with the increase of soil salinity. Bacteria detected from the 1, 2, and 3% saline soil by temperature gradient gel electrophoresis resulted in the discovery of 30, 24, and 17 species, respectively. Thus, a soil salinity of above 1% may be an environmental factor to physiologically limit growth and mineral absorption of glasswort, therefore leading to increased variation of soil bacterial community.
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