Rare Earth Elements in Plants

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Nutrition".

Deadline for manuscript submissions: 20 July 2025 | Viewed by 1120

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Department of Soil Science, Universidade Federal de Lavras, Lavras 37203-202, Brazil
Interests: plant physiology; agronomic biofortification; fertilizers
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Special Issue Information

Dear Colleagues,

Rare earth elements (REEs) are identified as a group of 17 elements with similar physicochemical characteristics, as follows: scandium (Sc), yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutecium (Lu).

Since the 1980s, REE fertilizers have been commonly applied in agriculture to increase seed germination, root growth, chlorophyll content, plant resistance, and agricultural productivity. There are several findings reporting the positive effects of REEs on plant growth, mainly in crop yields. However, many questions about the biological mechanisms of these elements remain unanswered.

For this reason, this Special Issue invites scientists to submit original research and review manuscripts focused on deciphering the mechanisms of action of these elements in plants at the metabolic, structural, and cytogenetic levels. Papers that present the beneficial effects of REEs as biostimulants in plant metabolism, plant growth, plant nutrients, or tolerance against pest and plant diseases also are desirable.

In addition to this, this Special Issue also invites studies on REEs in soil–plant systems that focus on their effects in plants and in the environment, including ecological risk studies. Thus, considering the high interest in REEs in plants, this Special Issue will cover a wide variety of areas, aiming to contribute to the overall knowledge of the effects and mechanisms of REEs in plants from several aspects.

Dr. Cynthia De Oliveira
Guest Editor

Manuscript Submission Information

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Keywords

  • biostimulants
  • beneficial elements
  • soil–plant system
  • plant nutrition crop yield

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Published Papers (1 paper)

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Research

21 pages, 4369 KiB  
Article
Differences in Accumulation of Rare Earth Elements by Plants Cultivated in Soil and Substrates from Industrial Waste Materials
by Dominika Gmur, Grzegorz Siebielec and Monika Pecio
Plants 2025, 14(4), 589; https://doi.org/10.3390/plants14040589 - 14 Feb 2025
Viewed by 938
Abstract
The aim of this experiment was to investigate the differences in the uptake and accumulation of rare earth elements (REEs) between selected plant species and the substrates used (soil with increased REE content, ash, and smelter waste). Eight plant species were included in [...] Read more.
The aim of this experiment was to investigate the differences in the uptake and accumulation of rare earth elements (REEs) between selected plant species and the substrates used (soil with increased REE content, ash, and smelter waste). Eight plant species were included in the study: common yarrow (Achillea millefolium), false mayweed (Triplerosperum maritimum), tall fescue (Festuca arundinacea), marigold (Tagetes sp.), maize (Zea mays), white mustard (Sinapis alba), red clover (Trifolium pratense L.), and autumn fern (Dryopteris erythrosora). The study focused on the following REE representatives: lanthanum (La), cerium (Ce), europium (Eu), and gadolinium (Gd). Plant samples, divided into roots and shoots, were analyzed by ICP-MS. The obtained REE concentrations in plant tissues ranged from 9 to 697 µg kg−1 (La), 10 to 1518 µg kg−1 (Ce), 9 to 69 µg kg−1 (Eu), and 9 to 189 µg kg−1 (Gd). To determine the ability of plants to phytoextract REE, two factors were calculated: the translocation factor (TF) and the bioconcentration factor (BCF). The highest TF value was obtained for D. erythrosora growing on a substrate consisting of soil with increased REE content (Gd, TF = 4.03). Additionally, TF > 1 was obtained for all REEs in T. pratense L. In the experiment, the BCF was lower than 1 for all the plants tested. The study provided insight into the varying ability of plants to accumulate REEs, depending on both the plant species and the chemical properties of the substrate. Full article
(This article belongs to the Special Issue Rare Earth Elements in Plants)
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