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图 1 针状菱形藻和谷皮菱形藻培养液中甲基砷和无机砷随时间的浓度变化
Figure 1. Concentrations of methyl arsenic and inorganic arsenic in Nitzschia aciculari and Nitzschia palea cultures over time
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图 2 针状菱形藻和谷皮菱形藻培养液中甲基砷和无机砷随时间的浓度变化
Figure 2. Concentrations of methyl arsenic and inorganic arsenic in Nitzschia acicularis and Nitzschia palea cultures over time
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图 3 不同As(Ⅲ)浓度下针状菱形藻和谷皮菱形藻的生长曲线(OD680)
Figure 3. Growth curves (OD680) of Nitzschia acicularis and Nitzschia palea under different As(Ⅲ) concentrations
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图 4 不同As(Ⅲ)浓度处理下针状菱形藻和谷皮菱形藻的叶绿素质量浓度
Figure 4. Chlorophyll mass concentration of Nitzschia acicularis and Nitzschia palea under different As(III) concentrations
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图 5 针状菱形藻和谷皮菱形藻的对照组和15 μmol·L−1 As(Ⅲ)处理组扫描电镜图
Figure 5. Scanning electron microscopies of Nitzschia acicularis and Nitzschia palea in the control and 15 μmol·L−1 As(III) treatment
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图 6 不同浓度硅酸盐条件下针状菱形藻和谷皮菱形藻的砷浓度变化
Figure 6. Changes of arsenic concentrations in Nitzschia aciculari and Nitzschia palea under different concentrations of silicate concentrations
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图 7 在As(Ⅲ)和不同浓度硅酸盐条件下针状菱形藻的基因相对表达量
Figure 7. Relative gene expression in Nitzschia acicularis under As(III) and different concentrations of silicate concentrations
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图 8 针状菱形藻(Nitzschia acicularis)砷代谢及对硅酸盐的响应示意图
Figure 8. Schematic diagram of arsenic metabolism of Nitzschia acicularis and the responses to silicate addition
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