Synchrotron μXRF imaging reveals elemental distribution in the nickel hyperaccumulator Odontarrhena muralis (Brassicaceae) from Serbia

IF 1.7 4区环境科学与生态学 Q3 ECOLOGY

Ecological Research Pub Date : 2024-03-07 DOI:10.1111/1440-1703.12451

Tomica Mišljenović, Ksenija Jakovljević, Dennis Brueckner, Antony van der Ent

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Abstract

Odontarrhena muralis (Brassicaceae) is a nickel hyperaccumulator species from the Balkans used as a “metal crop” in nickel phytomining. This study aimed to determine the elemental distribution, focusing on nickel, in fresh-hydrated plant tissue (stems, leaves and inflorescences), to clarify where nickel is localized at the tissue and cellular scale-level and to infer the physiological response to its hypertolerance and hyperaccumulation. For the analysis, intact plant organs of O. muralis were subjected to elemental imaging using synchrotron-based micro-X-ray fluorescence (μXRF). The predominant distribution of nickel occurs in the epidermal tissue and at the base of the trichomes, which are also the main sinks for calcium deposition. The obtained results represent a further contribution to the knowledge of the physiological characteristics of this hyperaccumulating “metal crop” species and, consequently, to its application in sustainable metal extraction using phytomining.

Abstract Image

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同步辐射μXRF成像揭示塞尔维亚镍高积累植物Odontarrhena muralis（十字花科）中的元素分布

Odontarrhena muralis（十字花科）是巴尔干地区的一种镍高积累物种，在镍植物开采中被用作 "金属作物"。本研究旨在确定镍在新鲜水合植物组织（茎、叶和花序）中的元素分布，明确镍在组织和细胞中的定位，并推断镍的高耐受性和高积累的生理反应。在分析过程中，利用同步加速器微 X 射线荧光（μXRF）对木耳的完整植物器官进行了元素成像。镍主要分布在表皮组织和毛状体基部，这也是钙沉积的主要汇集点。这些结果进一步加深了人们对这种高积累性 "金属作物 "生理特征的了解，从而有助于将其应用于利用植物采矿进行可持续金属提取。

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来源期刊

Ecological Research 环境科学-生态学

CiteScore

4.40

自引率

5.00%

发文量

审稿时长

5.6 months

期刊介绍： Ecological Research has been published in English by the Ecological Society of Japan since 1986. Ecological Research publishes original papers on all aspects of ecology, in both aquatic and terrestrial ecosystems.