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)
Review
Food Science & Technology
Shuhua Yin, Maoping Duan, Bing Fang, Guanghua Zhao, Xiaojing Leng, Tuo Zhang
Summary: Zinc, as a significant micronutrient, plays essential roles in living organisms and is closely associated with disease occurrence. Zinc transporters are crucial in regulating zinc homeostasis, with their structures and dynamics providing insights into the mechanisms of zinc trafficking and regulation. This review elaborates on the structural basis of zinc transport through ZIP and ZnT, the molecular mechanisms of zinc binding and transport, the driving force for zinc transmembrane transport, and the general regulation models of zinc transporters.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
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, 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)
Review
Biochemistry & Molecular Biology
Camilla Stanton, Dale Sanders, Ute Kraemer, Dorina Podar
Summary: This article reviews the current understanding of zinc homeostasis in plants, focusing on the balance between zinc supply and nutritional requirements in soil, as well as the importance of zinc for plant and human health.
Article
Biochemistry & Molecular Biology
Tran Le Cong Huyen Bao Phan, Nathalie Crepin, Filip Rolland, Patrick Van Dijck
Summary: This study reports the discovery of two isoforms of trehalase in Arabidopsis that have different subcellular localization and are involved in the regulation of drought stress tolerance. These isoforms can interact with each other and their activation is dependent on a stress-induced calcium-dependent protein kinase. Both isoforms can mediate ABA-induced stomatal closure, but the cytoplasmic/nuclear isoform is more effective in drought conditions.
PLANT MOLECULAR BIOLOGY
(2022)
Review
Plant Sciences
Rodrigo Siqueira Reis, Yves Poirier
Summary: In plants, thousands of genes are associated with antisense transcription, producing noncoding RNAs that play diverse roles in gene regulation. The evidence suggests that antisense transcription is not primarily involved in gene silencing, but has a broad and diverse function in gene regulation. A framework for the functional dissection of antisense transcripts is proposed to move beyond the gene silencing paradigm.
TRENDS IN PLANT SCIENCE
(2021)
Article
Multidisciplinary Sciences
Md. Sifatul Islam, Md. Soyib Hasan, Md. Nazmul Hasan, Shamsul H. Prodhan, Tahmina Islam, Ajit Ghosh
Summary: The study identified 22 ALDH genes in potato grouped into ten families, unevenly distributed across all chromosomes. ALDH2 and ALDH3 were found to be the most abundant families, while ALDH18 was the most distantly related one. Gene expression was tissue-specific and divergent in response to various abiotic, biotic, and hormonal treatments.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Sichul Lee, Joohyun Lee, Felipe K. Ricachenevsky, Tracy Punshon, Ryan Tappero, David E. Salt, Mary Lou Guerinot
Summary: The study demonstrated that IRT3, ZIP4, ZIP6, and ZIP9 in Arabidopsis thaliana function redundantly in maintaining zinc homeostasis and seed development, with single and higher-order mutants showing impaired growth to varying degrees.
Article
Multidisciplinary Sciences
Qian Wang, A. Cecilia Aliaga Fandino, Moritz Graeff, Thomas A. DeFalco, Cyril Zipfel, Christian S. Hardtke
Summary: In this study, the authors demonstrate the antagonistic relationship between CLE peptide signaling pathways and phosphoinositide kinases in the regulation of auxin efflux in phloem vascular tissue. This finding provides important insights into the mechanisms of plant development and auxin regulation.
NATURE COMMUNICATIONS
(2023)
Article
Gastroenterology & Hepatology
Mingyang Liu, Yuqing Zhang, Jingxuan Yang, Hanxiang Zhan, Zhijun Zhou, Yuanyuan Jiang, Xiuhui Shi, Xiao Fan, Junxia Zhang, Wenyi Luo, Kar-Ming A. Fung, Chao Xu, Michael S. Bronze, Courtney W. Houchen, Min Li
Summary: The study revealed that ZIP4 activates ZEB1 and YAP1 to regulate pancreatic cancer metastasis and EMT plasticity, with significant impact on tumor progression and spread.
Review
Plant Sciences
Simon Obermeyer, Henna Kapoor, Hanna Markusch, Klaus. D. D. Grasser
Summary: Transcriptional elongation by RNAPII through chromatin is a dynamic and highly regulated step in eukaryotic gene expression. The combination of transcript elongation factors facilitates efficient transcription on nucleosomal templates. Recent advances in understanding the role of these factors in plant gene expression are discussed, including the suppression of aberrant transcript initiation and prevention of transcriptional interference with neighboring genes.
Article
Multidisciplinary Sciences
Ilias Georgakopoulos-Soares, Guillermo E. Parada, Hei Yuen Wong, Ragini Medhi, Giulia Furlan, Roberto Munita, Eric A. Miska, Chun Kit Kwok, Martin Hemberg
Summary: This study reveals the enrichment of G4 motifs near splice junctions, suggesting their regulatory role in RNA stability and splicing. G4 motifs play important roles in exon skipping and inclusion, and are associated with multiple RNA binding proteins. Furthermore, G4 motifs show strong enrichment at splice sites in mammals and birds, indicating the evolutionary conservation of this splice regulatory mechanism.
NATURE COMMUNICATIONS
(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
Rafaela Amaral dos Reis, Sophie Hendrix, Miguel Pedro Mourato, Luisa Louro Martins, Jaco Vangronsveld, Ann Cuypers
Summary: The study revealed differences in copper and cadmium sensitivity between different Arabidopsis thaliana accessions, with Wassilewskija plants showing a more effective response to maintaining copper homeostasis under Cu and Cd exposure, mainly through regulating the expression of related genes.
JOURNAL OF PLANT PHYSIOLOGY
(2021)
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)
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
Biochemistry & Molecular Biology
Camilla Stanton, Dale Sanders, Ute Kraemer, Dorina Podar
Summary: This article reviews the current understanding of zinc homeostasis in plants, focusing on the balance between zinc supply and nutritional requirements in soil, as well as the importance of zinc for plant and human health.
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
Julia Quintana, Maria Bernal, Marleen Scholle, Heike Hollaender-Czytko, Nga T. Nguyen, Markus Piotrowski, David G. Mendoza-Cozatl, Michael J. Haydon, Ute Kraemer
Summary: The study reveals a second role of IRT1 in root-to-shoot partitioning of iron in Arabidopsis thaliana, in addition to its primary function in high-affinity iron uptake in roots. Mutations in IRT1 lead to iron overaccumulation in roots, highlighting a new aspect of IRT1's involvement in iron homeostasis. Furthermore, findings suggest a regulatory function for IRT1 in iron mobilization that is independent of its transport activity.
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
Multidisciplinary Sciences
Emmanuel Tergemina, Ahmed F. Elfarargi, Paulina Flis, Andrea Fulgione, Mehmet Goektay, Celia Neto, Marleen Scholle, Padraic J. Flood, Sophie-Asako Xerri, Johan Zicola, Nina Doering, Herculano Dinis, Ute Kraemer, David E. Salt, Angela M. Hancock
Summary: This study demonstrates a two-step evolutionary process in which nutrient homeostasis was rewired to adapt to extremely low soil manganese conditions. A variant disrupting the iron uptake transporter gene quickly became fixed in the population, increasing manganese but limiting iron in the leaves. Multiple independent gene duplications then compensated for the loss of the iron transporter gene, improving iron homeostasis. This research provides a clear example of a multilocus adaptive walk and sheds light on how genetic variants reshape phenotypes and spread over space and time.
Article
Biochemistry & Molecular Biology
Anna Schulten, Bjoern Pietzenuk, Julia Quintana, Marleen Scholle, Regina Feil, Marcus Krause, Maida Romera-Branchat, Vanessa Wahl, Edouard Severing, George Coupland, Ute Kraemer
Summary: Copper is crucial for energy production and carbon fixation in Arabidopsis, and SPL7 is a transcription factor involved in the response to copper deficiency. In this study, it was found that SPL7 mutants are unable to translate sugar levels into growth and development under copper-deficient conditions, and therefore cannot be stimulated by exogenous sugar supplementation.
Article
Biochemical Research Methods
Christoph H. R. Senges, Helen L. Warmuth, Melissa Vazquez-Hernandez, Huriye Deniz Uzun, Leonie Sagurna, Pascal Dietze, Claudia Schmidt, Brix Muecher, Stefan Herlitze, Ute Kraemer, Ingo Ott, Thomas Gunther Pomorski, Julia E. Bandow
Summary: Ionophores are small molecules or peptides that transport metal ions across biological membranes. In this study, the effects of the semisynthetic polyether ionophore 4-Br-A23187 on the model organism Bacillus subtilis were investigated. The treatment led to an increase in intracellular copper levels and a decrease in intracellular manganese and magnesium, which resulted in oxidative stress and disturbance of proteostasis. A liposome model confirmed the ionophore's role as a copper transporter in vitro.
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
Biochemistry & Molecular Biology
Rocky Putra, Max Toelle, Ute Kraemer, Caroline Mueller
Summary: Soil pollution by metals and metalloids due to industrialization has a detrimental effect on ecosystems. Certain plant species called hyperaccumulators can accumulate high concentrations of these metals and metalloids in their aboveground tissues, acting as a defense against various antagonists. This study investigates the effects of metal(loid)s on defense traits in the hyperaccumulator plant species Arabidopsis halleri by artificially amending the soil with cadmium and zinc, and supplementing with silicon. The results show significant effects of metal amendment and silicon supplementation on foliar concentrations of certain elements, as well as on organic and mechanical defenses.
Article
Plant Sciences
Camilla Stanton, Jorge Rodriguez-Celma, Ute Kramer, Dale Sanders, Janneke Balk
Summary: Mutation of two E3 ligases that suppress iron uptake in roots also confers tolerance to zinc toxicity, identifying a regulatory point of interaction between iron and zinc homeostasis. Loss of function of BTSL1 and BTSL2, which encode E3 ubiquitin ligases, leads to Arabidopsis thaliana having tolerance to excess zinc. These mutants have similar zinc accumulation as the wild type, but lower iron accumulation in roots.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Proceedings Paper
Engineering, Manufacturing
R. M. Genga, D. Glaser, P. Rokebrand, L. A. Cornish, M. Woydt, T. Gradt, A. Janse van Vuuren, C. Polese
Summary: Attempts were made to improve the properties and machining performance of NbC based cermet cutting inserts by using sub-stoichiometric NbC, Cr3C2, Mo2C additives, and laser shock peening. The refined microstructure, increased hardness, and improved wear resistance were achieved by the addition of Mo2C and manufacture by spark plasma sintering (SPS). Laser shock peening (LSP) significantly enhanced the fracture toughness of all inserts and improved the tool life of NbC0.88-Ni inserts, reducing the flank wear rate and average resultant force.
SMART, SUSTAINABLE MANUFACTURING IN AN EVER-CHANGING WORLD, COMA '22
(2023)