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Silicon increases salt tolerance by influencing the two-phase growth response to salinity in wheat (Triticum aestivum L.)

100%

Chen D., Yin L., Deng X., Wang S.

Acta Physiologiae Plantarum

2014

tom 36

nr 09

Salt usually stresses plants in two ways, osmotic stress and ion toxicity. Plant responds to salinity in two distinct phases through time. It is known that silicon (Si) could alleviate salt stress by decreasing the Na⁺ accumulated in the leaf. In order to determine the function of Si in the two-phase growth response (osmotic and ion toxicity) to salinity, we selected the wheat cultivar ‘‘Changwu 134’’ out of 10 wheat cultivars, and confirmed that it responds to salinity in two distinct phases through time. The fresh weight, leaf area, and leaf Na⁺ concentration were measured during 31 days of 120 mM NaCl supplemented with 1 mM Si treatment. The results revealed that the growth of plants under salinity conditions both with and without Si application were in accordance with the two-phase growth model. Si alleviated the salt stress in the both two-phase growth, but the alleviative effects were more pronounced in the osmotic stress phase than ion toxicity phase. These results clearly showed that Si can enhance plant salt tolerance by alleviating the salt-induced osmotic stress.

Stimulation of anthocyanin production by two-phase growth system, in callus of Rudbeckia hirta

80%

Luczkiewicz M., Cisowski W.

Biotechnologia

1999

nr 4

Ograniczanie wyników

1 Acta Physiologiae Plantarum

1 Biotechnologia

1 Chen D.

1 Cisowski W.

1 Deng X.

1 Luczkiewicz M.

1 Wang S.

1 Yin L.

1 2014

1 1999

Wyniki wyszukiwania

Silicon increases salt tolerance by influencing the two-phase growth response to salinity in wheat (Triticum aestivum L.)

Stimulation of anthocyanin production by two-phase growth system, in callus of Rudbeckia hirta