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首页> 外文期刊>Environmental toxicology and chemistry >Impact of Hydroponic Oxygen Control in Sulfide Toxicity to Early Life Stages ofWild Rice (Zizania palustris)
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Impact of Hydroponic Oxygen Control in Sulfide Toxicity to Early Life Stages ofWild Rice (Zizania palustris)

机译:水培氧控制硫化物毒性对野生稻(Zizania palustris)早期生命的影响

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Low-headspace oxygen was used in the hydroponic design to evaluate the toxicity of sulfide to wild rice (Zizania palustris). Oxygen levels in the headspace gas phase were maintained at <0.005 atm. The results indicated that mesocotyl emergence was the most sensitive endpoint (>= 3.1 mg/L sulfide and 0.8 mg/L iron [Fe]). At 2.8 mg Fe/L, >= 7.8 mg/L sulfide was required to reduce emergence, shoot weight, and shoot length. Overall, the results were similar to those of previous studies in which atmospheric oxygen was maintained in the headspace gas phase, demonstrating that the oxygen level in the headspace gas phase during mesocotyl emergence and early growth was not a significant factor in sulfide tolerance. Environ Toxicol Chem 2020;00:1-8. (c) 2020 SETAC
机译:低空顶氧气用于水耕设计中,以评估硫化物对野生稻(Zizania palustris)的毒性。顶空气相中的氧气水平保持在<0.005 atm。结果表明,中胚轴出现是最敏感的终点(> = 3.1 mg / L硫化物和0.8 mg / L铁[Fe])。在2.8 mg Fe / L的情况下,需要> = 7.8 mg / L的硫化物以减少出苗,枝条重量和枝条长度。总体而言,结果与以前的研究相似,在这些研究中,顶空气相中保持了大气中的氧气,这表明中胚轴生长和早期生长过程中顶空气相中的氧含量并不是硫化物耐受性的重要因素。环境毒性化学2020; 00:1-8。 (c)2020年SETAC

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