水培罗勒（Ocimum basilicum L.）对镉长时间暴露的离子组响应。
Ionomic responses of hydroponic-grown basil (Ocimum basilicum L.) to cadmium long-time exposure.
机构信息
LEAQUAA, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos, 6627, Pampulha, PO Box 702, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil.
Universidade Estadual de Roraima, Rua 7 de setembro, 231, Canarinho, CEP 69306-530, Boa Vista Roraima, Brazil.
出版信息
Metallomics. 2022 May 27;14(5). doi: 10.1093/mtomcs/mfac023.
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 the 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 showed an ionomic discrimination between leaves, stems, and roots, with Cd strongly correlated to Zn, Cu, and Sr.
采用水培法在培养 15 天后，评估了 basil 叶片、茎和根对 Cd2+的离子响应。通过电感耦合等离子体质谱法（ICP-MS）对离子进行定量分析。Cd 主要积累在根部，而 Be、Li、Ca、Mg 和 Sr 则积累在叶片中，K 和 Mn 则积累在茎中。与对照组相比，即使在低浓度下暴露，用 Cd2+处理的 basil 幼苗在根部积累了更高的 Ca、Cu、Mn、Sr 和 Zn 含量。Pearson 正相关主要观察到 Cd 与必需和非必需元素之间在叶片和根部（P<0.05）。另一方面，除 Ba、Li、Sr 和 Zn 外，主要观察到负相关在茎中。主成分分析表明，叶片、茎和根之间存在离子组区分，Cd 与 Zn、Cu 和 Sr 强烈相关。
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