Metal and metalloid speciation in plants: Overview, instrumentation, approaches and commonly assessed elements

Kroukamp, Eve M.; Wondimu, Taddese; Forbes, Patricia B.C.

doi:10.1016/j.trac.2015.10.007

Cited by 57 publications

(20 citation statements)

References 104 publications

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“…However, Arabidopsis has been reported to accumulate low levels of silicon and to lack silicon influx transporters (Ghanmi, McNally, Benhamou, Menzies, & Belanger, ). To determine whether there was differential uptake of silicon in plants grown in Sunshine or Resilience soil, we conducted inductively coupled plasma mass spectrometry (ICP‐MS), which allows for the quantification of trace elements (Kroukamp, Wondimu, & Forbes, ). Plants grown in Sunshine versus Resilience soil accumulated similar levels of silicon (Figure a), although the range of silicon concentrations was much broader in the plants grown in Resilience soil.…”

Section: Resultsmentioning

confidence: 99%

Soil mixture composition alters Arabidopsis susceptibility to Pseudomonas syringae infection

et al. 2018

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Pseudomonas syringae is a gram‐negative bacterial pathogen that causes disease on more than 100 different plant species, including the model plant Arabidopsis thaliana. Dissection of the Arabidopsis thaliana–Pseudomonas syringae pathosystem has identified many factors that contribute to successful infection or immunity, including the genetics of the host, the genetics of the pathogen, and the environment. Environmental factors that contribute to a successful interaction can include temperature, light, and the circadian clock, as well as the soil environment. As silicon‐amended Resilience soil is advertised to enhance plant health, we sought to examine the extent to which this soil might affect the behavior of the A. thaliana–P. syringae model pathosystem and to characterize the mechanisms through which these effects may occur. We found that plants grown in Si‐amended Resilience soil displayed enhanced resistance to bacteria compared to plants grown in non‐Si‐amended Sunshine soil, and salicylic acid biosynthesis and signaling were not required for resistance. Although silicon has been shown to contribute to broad‐spectrum resistance, our data indicate that silicon is not the direct cause of enhanced resistance and that the Si‐amended Resilience soil has additional properties that modulate plant resistance. Our work demonstrates the importance of environmental factors, such as soil in modulating interactions between the plant and foliar pathogens, and highlights the significance of careful annotation of the environmental conditions under which plant–pathogen interactions are studied.

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Section: Resultsmentioning

confidence: 99%

Soil mixture composition alters Arabidopsis susceptibility to Pseudomonas syringae infection

et al. 2018

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“…The study of metal(loid) uptake and accumulation in plants has received much interest in the last years [23][24][25][26], as they affect important physiological processes in plants, impact yield and, in the case of crops used for food and feed, can raise health-related issues. The study of metal(loid) accumulation in plants needs imaging to gain information on the sites of accumulation, on distribution and translocation routes.…”

Section: Introductionmentioning

confidence: 99%

Visualising Silicon in Plants: Histochemistry, Silica Sculptures and Elemental Imaging

Guerriero

Stokes

Valle

et al. 2020

Cells

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Silicon is a non-essential element for plants and is available in biota as silicic acid. Its presence has been associated with a general improvement of plant vigour and response to exogenous stresses. Plants accumulate silicon in their tissues as amorphous silica and cell walls are preferential sites. While several papers have been published on the mitigatory effects that silicon has on plants under stress, there has been less research on imaging silicon in plant tissues. Imaging offers important complementary results to molecular data, since it provides spatial information. Herein, the focus is on histochemistry coupled to optical microscopy, fluorescence and scanning electron microscopy of microwave acid extracted plant silica, techniques based on particle-induced X-ray emission, X-ray fluorescence spectrometry and mass spectrometry imaging (NanoSIMS). Sample preparation procedures will not be discussed in detail, as several reviews have already treated this subject extensively. We focus instead on the information that each technique provides by offering, for each imaging approach, examples from both silicifiers (giant horsetail and rice) and non-accumulators (Cannabis sativa L.).

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“…The specific area of metal and metalloid speciation topic of plant biochemistry has been reviewed by Kroukamp et al 22 . The reviewers point out that the ability of plants to accumulate metals and metalloids could pose a health risk to both humans and animals as plants are a substantial dietary component.…”

Section: Topical Reviewsmentioning

confidence: 99%

Atomic Spectrometry Update: review of advances in elemental speciation

Clough

Harrington

Hill

et al. 2018

J. Anal. At. Spectrom.

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This is the ninth Atomic Spectrometry Update (ASU) to focus on advances in elemental speciation and covers a period of approximately 12 months from December 2015. This ASU review deals with all aspects of the analytical atomic spectrometry speciation methods developed for: the determination of oxidation states; organometallic compounds; coordination compounds; metal and heteroatom-containing biomolecules, including metalloproteins, proteins, peptides and amino acids; and the use of metal-tagging to facilitate detection via atomic spectrometry. The review does not cover fractionation, which is sometimes termed operationally defined speciation. As with all ASU reviews the focus of the research reviewed includes those methods that incorporate atomic spectrometry as the measurement technique. However, because speciation analysis is inherently focused on the relationship between the metal(loid) atom and the organic moiety it is bound to, or incorporated within, atomic spectrometry alone cannot be the sole analytical approach of interest. For this reason molecular detection techniques are also included where they have provided a complementary approach to speciation analysis. As in previous years, As and Se speciation continues to dominate the current literature, with reports of the speciation of Cr and Hg also increasing, and there are an ever rising number of publications concerning the analysis of 'biomolecules'. Whilst most of this work is still the preserve of the research field some methods are now approaching the robustness and rapidity for use in the clinical setting.

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Metal and metalloid speciation in plants: Overview, instrumentation, approaches and commonly assessed elements

Cited by 57 publications

References 104 publications

Soil mixture composition alters Arabidopsis susceptibility to Pseudomonas syringae infection

Soil mixture composition alters Arabidopsis susceptibility to Pseudomonas syringae infection

Visualising Silicon in Plants: Histochemistry, Silica Sculptures and Elemental Imaging

Atomic Spectrometry Update: review of advances in elemental speciation

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