水培罗勒对镉长期暴露的生理响应。

IF 2.9 3区生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

Metallomics Pub Date : 2022-03-31 DOI:10.1093/mtomcs/mfac023

Vânia Teles, G. V. Sousa, L. Modolo, R. Augusti, L. Costa

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引用次数: 2

摘要

在水培系统中培养15天，研究了罗勒叶、茎和根对Cd2+的离子反应。采用电感耦合等离子体质谱法(ICP-MS)定量离子。Cd主要在根中积累，Be、Li、Ca、Mg和Sr主要在叶中积累，K和Mn主要在茎中积累。与对照组相比，在低浓度Cd2+处理下，罗勒幼苗根系积累的Ca、Cu、Mn、Sr和Zn含量较高。Cd与必需元素和非必需元素之间的Pearson正相关以叶片和根系最为显著(p < 0.05)。除Ba、Li、Sr、Zn外，其余元素含量均呈显著负相关。主成分分析(PCA)表明，叶片、茎和根具有明显的差异，其中Cd与Zn、Cu和Sr呈显著正相关。

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Ionomic responses of hydroponic-grown basil (Ocimum basilicum L.) to cadmium long-time exposure.

The ionomic response of basil leaves, stems, and roots to Cd2+ was evaluated in seedlings grown in a hydroponic system for 15 days. Ions were quantified by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). Cd accumulated mainly in roots while Be, Li, Ca, Mg and Sr in leaves and K and Mn in stems. Compared to the control group, basil seedlings treated with Cd2+ accumulated higher Ca, Cu, Mn, Sr, and Zn contents in roots, even when exposed at low levels. Pearson positive correlations between Cd and essential and nonessential elements were mostly observed in leaves and roots (p < 0.05). On the other hand, negative correlations were observed mainly in stems with all elements, except Ba, Li, Sr, and Zn. Principal component analysis (PCA) showed an ionomic discrimination between leaves, stems, and roots, with Cd strongly correlated to Zn, Cu and Sr.

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