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首页> 外文期刊>Journal of Hazardous Materials >Se(IV) phytotoxicity for monocotyledonae cereals (Hordeum vulgare L., Triticum aestivum L.) and dicotyledonae crops (Sinapis alba L., Brassica napus L.)
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Se(IV) phytotoxicity for monocotyledonae cereals (Hordeum vulgare L., Triticum aestivum L.) and dicotyledonae crops (Sinapis alba L., Brassica napus L.)

机译：他（4）对单子叶植物谷物（Triticum aestivum L.，Triticum aestivum L.）和双子叶植物（Sinapis alba L.，Brassica napus L.）的植物毒性

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摘要

The phytotoxicity of Se(IV) was determined through root and shoot growth inhibition, biomass (dry (DM), fresh (FM)) production, water content, photosynthetic pigment (chlorophyll a, chlorophyll b and carotenoids) levels and Se accumulation in the roots and shoots. The sensitivities of monocotyledonae (Hordeum vulgare, Triticum aestivum) and dicotyledonae plants (Sinapis alba, Brassica napus) were also compared. Except for H. vulgare, Se(lV) inhibited root growth more than shoot growth. As for biomass production, Se reduced both FM and DM of all studied plants' roots. Although in shoots FM was decreased with increased Se concentration, DM was reduced only in monocotyledonae plants (H. vulgare, T. aestivum). No significant differences between roots and shoots were confirmed for the DM/FM relationship, except for S. alba seedlings. In all of the tested plants, except for B. napus, chlorophyll b was the strongest reduced pigment. Accumulation of Se was higher in the roots than in the shoots of all studied plants. Selenium concentration in the roots was at least 3-times higher than that in controls. Se(IV) accumulation in the shoots was not significantly different from that in controls. The exception was confirmed only for B. napus (87 mg Se(IV)l~(-1)) and T. aestivum (36 mg Se(IV)l~(-1)).
机译：Se（IV）的植物毒性通过根和芽生长抑制，生物量（干（DM），新鲜（FM））产生，水分，光合色素（叶绿素a，叶绿素b和类胡萝卜素）的水平和硒在植株中的积累来确定。根和芽。还比较了单子叶植物（大麦，小麦）和双子叶植物（Sinapis alba，甘蓝型油菜）的敏感性。除普通小麦外，Se（IV）抑制根的生长比芽的生长更多。至于生物量的生产，硒降低了所有研究植物根的FM和DM。尽管苗中FM随着Se浓度的增加而降低，但DM仅在单子叶植物（H. vulgare，T. aestivum）中降低。 DM / FM关系的根与芽之间没有显着差异，除了白芥。在所有测试过的植物中，除了甘蓝型油菜以外，叶绿素b是还原性最强的色素。根中硒的积累高于所有研究植物的芽。根中硒的含量至少比对照高3倍。芽中Se（IV）的积累与对照没有显着差异。仅双歧杆菌（87 mg Se（IV）1〜（-1））和小麦锥虫（36 mg Se（IV）1〜（-1））被确认为例外。

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