Heavy metals tolerance on seed germination and growth of serpentine plant species Alyssum murale L.

Q3 Agricultural and Biological Sciences

Acta Biologica Szegediensis Pub Date : 2023-05-27 DOI:10.14232/abs.2022.2.116-124

B. Gashi, Mirsade Osmani, Naim Berisha, Liridon Buqaj, Besnik Dakaj, Eliesa Qazimi, Erëza Çoçaj

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引用次数: 0

Abstract

Alyssum murale L. is a nickel hyperaccumulator herbaceous perennial species in a natural serpentine soil and adapted to arid, infertile soils. The objective of this study was to investigate how the seed germination, root, and hypocotyl growth of this plant species respond to exposure to different concentrations of heavy metals such as lead (Pb), cadmium (Cd), nickel (Ni), chromium (Cr) and manganese (Mn). The highest germination, even higher than in the control group, was observed at lower concentrations of Ni, Cd, Pb and Mn, while almost all higher concentrations of the metals decreased germination. Germination time was significantly slower (from about 6 to 10 days) for seeds treated with higher metal concentrations, especially Mn, Cd and Ni, and faster (from about 3 to 5 days) for seeds treated with lower concentrations. The strongest inhibitory effect on root and hypocotyl length occurred in treatments with different concentrations of Pb, Cd, and Mn, and seeds treated with lower concentrations of Ni showed a positive effect on root and hypocotyl growth. Seeds treated with Ni showed relatively high tolerance to this metal, presenting the potential for practical use in various fields of phytoremediation technology.

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蛇纹草种子萌发和生长对重金属的耐受性。

Alyssum murale L.是一种镍超积累草本多年生物种，生长在天然蛇纹石土壤中，适应干旱、贫瘠的土壤。本研究的目的是研究该植物物种的种子发芽、根系和下胚轴生长对不同浓度重金属（如铅（Pb）、镉（Cd）、镍（Ni）、铬（Cr）和锰（Mn））的反应。在较低浓度的Ni、Cd、Pb和Mn下观察到最高的发芽率，甚至高于对照组，而几乎所有较高浓度的金属都降低了发芽率。用较高金属浓度，特别是Mn、Cd和Ni处理的种子的发芽时间明显较慢（约6至10天），用较低浓度处理的种子发芽时间较快（约3至5天）。不同浓度的Pb、Cd和Mn对根和下胚轴长度的抑制作用最强，而较低浓度的Ni对种子的生长有积极影响。用Ni处理的种子对这种金属表现出相对较高的耐受性，在植物修复技术的各个领域具有实际应用的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Biologica Szegediensis Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Acta Biologica Szegediensis (ISSN 1588-385X print form; ISSN 1588-4082 online form), a member of the Acta Universitatis Szegediensis family of scientific journals (ISSN 0563-0592), is published yearly by the University of Szeged. Acta Biologica Szegediensis covers the growth areas of modern biology and publishes original research articles and reviews, involving, but not restricted to, the fields of anatomy, embryology and histology, anthropology, biochemistry, biophysics, biotechnology, botany and plant physiology, all areas of clinical sciences, conservation biology, ecology, genetics, microbiology, molecular biology, neurosciences, paleontology, pharmacology, physiology and pathophysiology, and zoology.