Article
Plant Sciences
Viviana Escudero, Dario Ferreira Sanchez, Isidro Abreu, Sara Sopena-Torres, Natalia Makarovsky-Saavedra, Maria Bernal, Ute Kramer, Daniel Grolimund, Manuel Gonzalez-Guerrero, Lucia Jorda
Summary: Zinc plays a role in resistance to PcBMM infection in plants with ordinary zinc levels, and its accumulation is associated with up-regulation of HEAVY METAL ATPASE2 and HEAVY METAL ATPASE4 expression, enhancing resistance.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Editorial Material
Plant Sciences
Rocky Putra, Caroline Mueller
Summary: Some plant species can tolerate and accumulate high levels of metals or metalloids in their tissues as a defense mechanism. These plants also synthesize specialized metabolites that act as organic defenses. The variation in the composition and concentration of these metabolites, known as chemodiversity, has received little attention in the elemental defense hypothesis.
Article
Plant Sciences
Ilya V. Seregin, Tatiana V. Ivanova, Alexander S. Voronkov, Anna D. Kozhevnikova, Henk Schat
Summary: This pilot study aimed to compare the effects of zinc and nickel on the fatty acid profiles, oxidative stress and desaturase activity in two different species of Arabidopsis plants, one being a zinc hyperaccumulator and the other being a metal excluder. The results showed that significant changes in fatty acid composition were observed in both species, but the changes were metal-dependent and species-specific. These metal-induced changes in fatty acid composition could affect the fluidity and stability of membranes in the plants, potentially contributing to their metal tolerance or acclimation.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Plant Sciences
Elisa Fasani, Giovanni DalCorso, Gianluca Zorzi, Nicola Vitulo, Antonella Furini
Summary: miRNAs are key players in mineral homeostasis, with differential expression patterns in response to Zn excess in Arabidopsis thaliana and the Zn-hyperaccumulator species Arabidopsis halleri. These differences reflect distinct regulatory pathways in nutrient requirements, response to stresses, and plant growth and development.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Environmental Sciences
Charlotte C. Dietrich, Susan Tandy, Kamila Murawska-Wlodarczyk, Angelika Banas, Urszula Korzeniak, Barbara Seget, Alicja Babst-Kostecka
Summary: This study investigated the use of hyperaccumulating plants to remediate TME contaminated sites and found that TME accumulation is not directly correlated with soil TME concentrations or bioavailability, suggesting a more plant-driven accumulation pattern. Habitat environment also influences a population's phytoextraction efficiency.
Article
Microbiology
Ahmed A. Sorour, Heba Khairy, Eman H. Zaghloul, Heba A. H. Zaghloul
Summary: This study evaluates the plant growth promoting qualities of microbial flora isolated from different environments, indicating the potential of phytoremediation for pollutant removal.
Article
Biology
Anubhav Mohiley, Tanja Laaser, Stephan Hoereth, Stephan Clemens, Katja Tielboerger, Michal Gruntman
Summary: This study found that simulated herbivory enhances root foraging and uptake of cadmium in the metal-hyperaccumulating plant Arabidopsis halleri, particularly in plants from non-metalliferous origin. Plants from a metalliferous origin did not show preference in root allocation but exhibited enhanced Cd sharing between ramets when exposed to herbivory.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Plant Sciences
Shuai Liu, Limei Li, Yanwu Deng, Yongsheng Bai, Chao Sun, Shili Huang, Jiajie Zhou, Liyu Shi, Xuewei Yang, Ling Li, Xuemei Chen, Yulin Tang
Summary: This study discovered a Cd-responsive metal ion transporter gene BrpHMA2 in Brassica parachinensis, which is specifically expressed in the vascular tissues of the plant and can enhance Cd accumulation and sensitivity in transgenic Arabidopsis and yeast. The study also identified the transcription factors BrpNAC895 and BrpABI449 as key regulators of BrpHMA2 expression.
HORTICULTURE RESEARCH
(2022)
Article
Microbiology
Eve A. Maunders, Katherine Ganio, Andrew J. Hayes, Stephanie L. Neville, Mark R. Davies, Richard A. Strugnell, Christopher A. McDevitt, Aimee Tan
Summary: This study revealed the critical role of the P-type ATPase ZntA in maintaining bacterial metal homeostasis and resisting extracellular zinc stress in Klebsiella pneumoniae.
MICROBIOLOGY SPECTRUM
(2022)
Article
Agronomy
Anna D. Kozhevnikova, Ilya Seregin, Henk Schat
Summary: This study investigated the interactions between nickel and zinc in different populations of hyperaccumulator plants, as well as the potential role of histidine in their uptake and translocation. The results showed that zinc inhibited the uptake and translocation of nickel, while nickel had minimal effect on zinc uptake. Exogenous histidine supply also had varying effects on the translocation of zinc and nickel in different populations of hyperaccumulator plants.
Article
Environmental Sciences
Maximilian von Bremen-Kuehne, Hassan Ahmadi, Michael Sperling, Ute Kraemer, Uwe Karst
Summary: The spatial distribution of Zn and Cd in leaves of Arabidopsis halleri was determined using LA-ICP-MS. Referencing to internal standard elements was used to compensate for experimental issues. C-13 was found to be the most suitable element for referencing, stabilizing the distribution of Zn and Cd even in samples affected by experimental issues.
Article
Dentistry, Oral Surgery & Medicine
Yangyang Pan, Jing Zou, Keke Zhang, Xiping Wang, Qizhao Ma, Liqin Mei, Yuqing Li, Yihuai Pan
Summary: Most organisms require zinc for survival, but excessive amounts can be toxic. The frequent fluctuations of salivary zinc present a challenge for bacteria in the oral cavity. This study examined the role of ZccE in zinc detoxification in Streptococcus mutans and the effects of zinc toxification on the bacterium's physiology. It was found that the deletion of the zccE gene impaired the ability of S. mutans to grow under high zinc stress conditions and resulted in increased zinc accumulation. The study also revealed weakened biofilm formation and decreased gene expressions in the mutant strain under excessive zinc treatment.
MOLECULAR ORAL MICROBIOLOGY
(2023)
Article
Plant Sciences
Anja T. Fuglsang, Michael Palmgren
Summary: Plant plasma membrane H+-ATPases and Ca2+-ATPases are crucial for maintaining low cytoplasmic concentrations of H+ and Ca2+ respectively, essential for plant growth and development. They are finely regulated in response to external stimuli and physiological adaptations.
Article
Plant Sciences
Elisa Fasani, Giovanni DalCorso, Antonella Furini
Summary: The study reveals that there are differences in the expression of MYB59 in metallicolous and non-metallicolous populations, suggesting a convergent evolution associated with adaptation to metalliferous environments. Additionally, MYB59 regulation in A. halleri is part of the network linking mineral nutrition and Cd tolerance/accumulation.
FUNCTIONAL PLANT BIOLOGY
(2021)
Article
Plant Sciences
Satoru N. Kinoshita, Takamasa Suzuki, Takatoshi Kiba, Hitoshi Sakakibara, Toshinori Kinoshita
Summary: Plant growth and development rely on plasma membrane proton-translocating adenosine triphosphatase (H+-ATPase), which is activated by phosphorylation. Small Auxin-Up RNA proteins regulate the phosphorylation level by inhibiting dephosphorylation. Photosynthetically active radiation activates H+-ATPase, and phosphorylation depends on photosynthesis and sugar supplementation. The molecular mechanism and physiological role of this activation are still unknown.
PLANT AND CELL PHYSIOLOGY
(2023)
Article
Plant Sciences
Julien Spielmann, Hassan Ahmadi, Maxime Scheepers, Michael Weber, Sarah Nitsche, Monique Carnol, Bernard Bosman, Juergen Kroymann, Patrick Motte, Stephan Clemens, Marc Hanikenne
PLANT CELL AND ENVIRONMENT
(2020)
Article
Plant Sciences
Stanislaus Antony Ceasar, Gilles Lekeux, Patrick Motte, Zhiguang Xiao, Moreno Galleni, Marc Hanikenne
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Biochemistry & Molecular Biology
Benoit Deflandre, Noemie Thiebaut, Soren Planckaert, Samuel Jourdan, Sinaeda Anderssen, Marc Hanikenne, Bart Devreese, Isolde Francis, Sebastien Rigali
BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS
(2020)
Article
Plant Sciences
Massimiliano Corso, Xinhui An, Catherine Yvonne Jones, Veronica Gonzalez-Doblas, M. Sol Schvartzman, Eugeniusz Malkowski, William G. T. Willats, Marc Hanikenne, Nathalie Verbruggen
Summary: Metallophytes, such as A. halleri, exhibit significant variation in metal tolerance and accumulation due to differential expression of transporter genes and cell wall components in response to metal-contaminated environments. The metallicolous population showed increased tolerance to and reduced hyperaccumulation of Zn, limited accumulation of Cd, and altered metal homeostasis compared to the nonmetallicolous population, suggesting the involvement of specific cell wall components and transporter genes in limiting metal accumulation.
Review
Biochemistry & Molecular Biology
Tessa R. Young, Zhiguang Xiao
Summary: Metal ions play critical roles in biology, and the metal-protein affinity, described by the metal dissociation constant K-D, is a key parameter for understanding metal-protein interactions. This study outlines fundamental principles and practical considerations for reliable quantification of metal-protein affinities, using spectroscopic probes to determine accurate K-D values for essential biological transition metals.
BIOCHEMICAL JOURNAL
(2021)
Article
Soil Science
Alejandro Coca-Salazar, Jean-Thomas Cornelis, Monique Carnol
Summary: The study evaluated changes in soil functions under different land uses in the agricultural highlands of the Central Andes. Results showed that potato crops had the highest rates of N mineralization and nitrification, while conversion to eucalyptus plantations led to increases in soil organic matter and microbial biomass. Fallow practices did not significantly impact soil properties, and Hot water extractable C was found to be the best indicator of changes in soil processes.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2021)
Article
Plant Sciences
Sahand Amini, Borjana Arsova, Sylvie Gobert, Monique Carnol, Bernard Bosman, Patrick Motte, Michelle Watt, Marc Hanikenne
Summary: Study on the molecular events underlying zinc homeostasis in Brachypodium plants under varying zinc supply and resupply conditions revealed the key roles of zinc-responsive genes and transporter proteins. Root-to-shoot signals may mediate the overall plant responses to zinc resupply.
PLANT CELL AND ENVIRONMENT
(2021)
Review
Plant Sciences
Noemie Thiebaut, Marc Hanikenne
Summary: Zinc deficiency in agricultural soils is widespread and has significant impacts on crop yield, quality, human nutrition, and health. This article focuses on the investigation of zinc deficiency response mechanisms in dicotyledonous crops, such as Phaseolus vulgaris, Glycine max, Brassica oleracea, and Solanum lycopersicum, and highlights the importance of translating knowledge from Arabidopsis to improve zinc biofortification strategies in dicotyledonous crops. The article also discusses the function and regulation of zinc transporters and chelators, zinc-sensing mechanisms, and the role of hormones in the zinc deficiency response.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Review
Plant Sciences
Sahand Amini, Borjana Arsova, Marc Hanikenne
Summary: Zinc is an essential cofactor for plants, particularly important for grasses which are crucial food sources for humans. Zinc deficiency in these crops not only reduces yield, but also leads to malnutrition affecting over two billion people worldwide. Although progress has been made in understanding zinc homeostasis and deficiency mechanisms in plants, our knowledge in monocots, especially cereal crops, is still insufficient.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Julien Spielmann, Nathalie Detry, Noemie Thiebaut, Alice Jadoul, Marie Schloesser, Patrick Motte, Claire Perilleux, Marc Hanikenne
Summary: In this study, overexpression of the A. halleri ZIP6 gene in Arabidopsis resulted in male sterility in flowers, linked to delayed tapetum degradation and endothecium collapse, as well as increased magnesium and potassium accumulation. This phenotype was rescued by co-expression of the zinc efflux transporter AhHMA4, highlighting the importance of fine-tuning zinc homeostasis in reproductive organs. The findings confirm the ability of AhZIP6 to transport zinc in planta and demonstrate the significance of understanding metal hyperaccumulation mechanisms in the metal homeostasis network.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Steven Fanara, Marie Schloesser, Marc Hanikenne, Patrick Motte
Summary: The mutant sr45-1 in Arabidopsis exhibits a phenotype of constitutive iron deficiency, characterized by iron accumulation in root tissues and iron starvation in aerial parts. RNA-Sequencing reveals severe perturbations in metal homeostasis, phenylpropanoid pathway, oxidative stress responses, and reproductive development. Some developmental abnormalities of sr45-1 can be complemented by exogenous iron supply.
Article
Plant Sciences
Sara M. Esteves, Alice Jadoul, Fabrizio Iacono, Marie Schloesser, Bernard Bosman, Monique Carnol, Tom Druet, Pierre Cardol, Marc Hanikenne
Summary: This study reveals extensive genetic variation in Chlamydomonas reinhardtii and describes how this variation influences the response to nutrient deficiency, with a focus on differences between natural and laboratory strains.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Stanislas Thiriet-Rupert, Gwenaelle Gain, Alice Jadoul, Amandine Vigneron, Bernard Bosman, Monique Carnol, Patrick Motte, Pierre Cardol, Cecile Nouet, Marc Hanikenne
Summary: The study found that the green algae's response to cadmium toxicity is influenced by both short-term and long-term exposure, but biomass production can recover to levels similar to control conditions after long-term acclimation. This recovery involves changes in cell wall-related gene expression, dynamics of metal ion uptake and homeostasis, photosynthesis efficiency, and adjustment through metal homeostasis. It also identified the coordination of phosphorus and iron homeostasis mediated by specific regulators as key factors in the algae's physiological plasticity.
Review
Plant Sciences
Marc Hanikenne, Sara M. Esteves, Steven Fanara, Hatem Rouached
Summary: In plants, the transport and homeostasis of iron are highly regulated processes with profound consequences for plant productivity. Complex interactions between iron and other macro- and micronutrients have been uncovered, impacting iron uptake and trafficking. Developing a more comprehensive model of how iron signaling pathways integrate into functional networks is crucial for controlling plant growth and development in fluctuating environments.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)