ArticleMetallomics : integrated biometal science2022
Multimodal synchrotron X-ray fluorescence imaging reveals elemental distribution in seeds and seedlings of the Zn-Cd-Ni hyperaccumulator Noccaea caerulescens.
Article in Metallomics : integrated biometal science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Rapid acquisition of ionomic and morphological data from plant seeds through fast X-ray fluorescence microscopy and computer vision.Plant phenomics (Washington, D.C.) · 2025Article
- Applications of synchrotron light in seed research: an array of x-ray and infrared imaging methodologies.Frontiers in plant science · 2024Article
- Research progress of the detection and analysis methods of heavy metals in plants.Frontiers in plant science · 2024Review
- Visualization and Quantitative Evaluation of Functional Structures of Soybean Root Nodules via Synchrotron X-ray Imaging.Plant phenomics (Washington, D.C.) · 2024Article
- Grain scans: fast X-ray fluorescence microscopy for high-throughput elemental mapping of rice seeds.Plant physiology · 2023Article
- Synchrotron XFM tomography for elucidating metals and metalloids in hyperaccumulator plants.Metallomics : integrated biometal science · 2022Article
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Abstract
The molecular biology and genetics of the Ni-Cd-Zn hyperaccumulator Noccaea caerulescens has been extensively studied, but no information is yet available on Ni and Zn redistribution and mobilization during seed germination. Due to the different physiological functions of these elements, and their associated transporter pathways, we expected differential tissue distribution and different modes of translocation of Ni and Zn during germination. This study used synchrotron X-ray fluorescence tomography techniques as well as planar elemental X-ray imaging to elucidate elemental (re)distribution at various stages of the germination process in contrasting accessions of N. caerulescens. The results show that Ni and Zn are both located primarily in the cotyledons of the emerging seedlings and Ni is highest in the ultramafic accessions (up to 0.15 wt%), whereas Zn is highest in the calamine accession (up to 600 μg g-1). The distribution of Ni and Zn in seeds was very similar, and neither element was translocated during germination. The Fe maps were especially useful to obtain spatial reference within the seeds, as it clearly marked the vasculature. This study shows how a multimodal combination of synchrotron techniques can be used to obtain powerful insights about the metal distribution in physically intact seeds and seedlings.
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