4.7 Article

Variations in Plant Growth Characteristics Due to Oxygen Plasma Irradiation on Leaf and Seed

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AGRONOMY-BASEL
卷 12, 期 2, 页码 -

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MDPI
DOI: 10.3390/agronomy12020259

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oxygen plasma; active oxygen species; plasma irradiation on seed and leaf; growth enhancement; gene expression

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The variations in gene expression of plant leaves were investigated by exposing seeds and leaves to oxygen or air plasmas. Oxygen plasma irradiation on seeds enhanced leaf growth by increasing gene expression for protein synthesis and oxidative-reduction reactions, while decreasing gene expression related to DNA methylation and histone modification. The suppression of leaf growth by oxygen plasma was due to increased gene expression of heat shock protein and redox reaction, and decreased expression of photosynthesis and glycoprotein. Gene expression variations induced by air plasma irradiation were similar to those caused by oxygen plasma. Active oxygen species played a major role in inducing gene expression variations in plants.
Gene expression variations of plant leaf are investigated by irradiating seed and leaf with oxygen or air plasmas. Enhancement of leaf growth is induced by oxygen plasma irradiation on seeds, which is supported by increased gene expression for protein synthesis, oxidative-reduction reactions, and decreased gene expression concerning DNA methylation and histone modification. Suppression of leaf growth is observed by the oxygen plasma, which would be owing to increased gene expression concerning heat shock protein and redox reaction, and decreased expression of photosynthesis and glycoprotein. Moreover, gene expression variation due to air plasma irradiation is almost the same as that of oxygen plasma. Active oxygen species are major factors in both oxygen and air plasmas for the variation of gene expressions in plants.

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