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Ranty-Roby S, Pontvianne F, Quentin M, Favery B. The overlooked manipulation of nucleolar functions by plant pathogen effectors. FRONTIERS IN PLANT SCIENCE 2024; 15:1445097. [PMID: 39175483 PMCID: PMC11339880 DOI: 10.3389/fpls.2024.1445097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Accepted: 07/16/2024] [Indexed: 08/24/2024]
Abstract
Pathogens need to manipulate plant functions to facilitate the invasion of their hosts. They do this by secreting a cocktail of molecules called effectors. Studies of these molecules have mostly focused on the mechanisms underlying their recognition and the subsequent transcriptional reprogramming of cells, particularly in the case of R gene-dependent resistance. However, the roles of these effectors are complex, as they target all cell compartments and their plant targets remain largely uncharacterized. An understanding of the mechanisms involved would be a considerable asset for plant breeding. The nucleolus is the site of many key cellular functions, such as ribosome biogenesis, cellular stress regulation and many other functions that could be targets for pathogenicity. However, little attention has been paid to effectors targeting nucleolar functions. In this review, we aim to fill this gap by providing recent findings on pathogen effectors that target and manipulate nucleolar functions and dynamics to promote infection. In particular, we look at how some effectors hijack ribosome biogenesis, the modulation of transcription or alternative splicing, all key functions occurring at least partially in the nucleolus. By shedding light on the role of the plant nucleolus in pathogen interactions, this review highlights the importance of understanding nucleolar biology in the context of plant immunity and the mechanisms manipulated by plant pathogens.
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Affiliation(s)
- Sarah Ranty-Roby
- INRAE, Université Côte d’Azur, CNRS, Institut Sophia Agrobiotech (ISA), Sophia Antipolis F-06903, Sophia Antipolis, France
| | | | - Michaël Quentin
- INRAE, Université Côte d’Azur, CNRS, Institut Sophia Agrobiotech (ISA), Sophia Antipolis F-06903, Sophia Antipolis, France
| | - Bruno Favery
- INRAE, Université Côte d’Azur, CNRS, Institut Sophia Agrobiotech (ISA), Sophia Antipolis F-06903, Sophia Antipolis, France
- International Research Organization for Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
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2
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Bellows E, Heatley M, Shah N, Archer N, Giles T, Fray R. Comparative transcriptome reprogramming in oak galls containing asexual or sexual generations of gall wasps. PLANT BIOLOGY (STUTTGART, GERMANY) 2024; 26:798-810. [PMID: 38864838 DOI: 10.1111/plb.13670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/07/2024] [Indexed: 06/13/2024]
Abstract
Oak gall wasps have evolved strategies to manipulate the developmental pathways of their host to induce gall formation. This provides shelter and nutrients for the developing larva. Galls are entirely host tissue; however, the initiation, development, and physical appearance are controlled by the inducer. The underlying molecular mechanisms of gall formation, by which one or a small number of cells are reprogrammed and commit to a novel developmental path, are poorly understood. In this study, we sought a deeper insight into the molecular underpinnings of this process. Oak gall wasps have two generations each year, one sexual, and one asexual. Galls formed by these two generations exhibit a markedly different appearance. We sequenced transcriptomes of both the asexual and sexual generations of Neuroterus quercusbaccarum and Neuroterus numismalis. We then deployed Nanopore sequencing to generate long-read sequences to test the hypothesis that gall wasps introduce DNA insertions to determine gall development. We detected potential genome rearrangements but did not uncover any non-host DNA insertions. Transcriptome analysis revealed that transcriptomes of the sexual generations of distinct species of wasp are more similar than inter-generational comparisons from the same species of wasp. Our results highlight the intricate interplay between the host leaves and gall development, suggesting that season and requirements of the gall structure play a larger role than species in controlling gall development and structure.
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Affiliation(s)
- E Bellows
- School of Biosciences, The University of Nottingham, Nottingham, UK
| | - M Heatley
- Advanced Data Analysis Centre, The University of Nottingham, Nottingham, UK
| | - N Shah
- Advanced Data Analysis Centre, The University of Nottingham, Nottingham, UK
| | - N Archer
- School of Veterinary Medicine and Science, The University of Nottingham, Nottingham, UK
| | - T Giles
- Advanced Data Analysis Centre, The University of Nottingham, Nottingham, UK
| | - R Fray
- School of Biosciences, The University of Nottingham, Nottingham, UK
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3
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Yang H, Thompson B. Widespread changes to the translational landscape in a maize microRNA biogenesis mutant. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:1986-2000. [PMID: 38963711 DOI: 10.1111/tpj.16902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 06/08/2024] [Accepted: 06/17/2024] [Indexed: 07/06/2024]
Abstract
MicroRNAs are short, non-coding RNAs that repress gene expression in both plants and animals and have diverse functions related to growth, development, and stress responses. The ribonuclease, DICER-LIKE1 (DCL1) is required for two steps in plant miRNA biogenesis: cleavage of the primary miRNAs (pri-miRNAs) to release a hairpin structure, called the precursor miRNA (pre-miRNA) and cleavage of the pre-miRNA to generate the miRNA/miRNA* duplex. The mature miRNA guides the RNA-induced silencing complex to target RNAs with complementary sequences, resulting in translational repression and/or RNA cleavage of target mRNAs. However, the relative contribution of translational repression versus mRNA degradation by miRNAs remains unknown at the genome-level in crops, especially in maize. The maize fuzzy tassel (fzt) mutant contains a hypomorphic mutation in DCL1 resulting in broad developmental defects. While most miRNAs are reduced in fzt, the levels of miRNA-targeted mRNAs are not dramatically increased, suggesting that translational regulation by miRNAs may be common. To gain insight into the repression mechanism of plant miRNAs, we combined ribosome profiling and RNA-sequencing to globally survey miRNA activities in maize. Our data indicate that translational repression contributes significantly to regulation of most miRNA targets and that approximately one-third of miRNA targets are regulated primarily at the translational level. Surprisingly, ribosomes appear altered in fzt mutants suggesting that DCL1 may also have a role in ribosome biogenesis. Thus, DICER-LIKE1 shapes the translational landscape in plants through both miRNA-dependent and miRNA-independent mechanisms.
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Affiliation(s)
- Hailong Yang
- Biology Department, East Carolina University, Greenville, North Carolina, USA
| | - Beth Thompson
- Biology Department, East Carolina University, Greenville, North Carolina, USA
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4
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Fuchs H, Staszak AM, Vargas PA, Sahrawy M, Serrato AJ, Dyderski MK, Klupczyńska EA, Głodowicz P, Rolle K, Ratajczak E. Redox dynamics in seeds of Acer spp: unraveling adaptation strategies of different seed categories. FRONTIERS IN PLANT SCIENCE 2024; 15:1430695. [PMID: 39114470 PMCID: PMC11303208 DOI: 10.3389/fpls.2024.1430695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Accepted: 07/08/2024] [Indexed: 08/10/2024]
Abstract
Background Seeds of woody plant species, such as those in the Acer genus like Norway maple (Acer platanoides L.) and sycamore (Acer pseudoplatanus L.), exhibit unique physiological traits and responses to environmental stress. Thioredoxins (Trxs) play a central role in the redox regulation of cells, interacting with other redox-active proteins such as peroxiredoxins (Prxs), and contributing to plant growth, development, and responses to biotic and abiotic stresses. However, there is limited understanding of potential variations in this system between seeds categorized as recalcitrant and orthodox, which could provide insights into adaptive strategies. Methods Using proteomic analysis and DDA methods we investigated the Trx-h1 target proteins in seed axes. We complemented the results of the proteomic analysis with gene expression analysis of the Trx-h1, 1-Cys-Prx, and TrxR NTRA genes in the embryonic axes of maturing, mature, and stored seeds from two Acer species. Results and discussion The expression of Trx-h1 and TrxR NTRA throughout seed maturation in both species was low. The expression of 1-Cys-Prx remained relatively stable throughout seed maturation. In stored seeds, the expression levels were minimal, with slightly higher levels in sycamore seeds, which may confirm that recalcitrant seeds remain metabolically active during storage. A library of 289 proteins interacting with Trx-h1 was constructed, comprising 68 from Norway maple and 221 from sycamore, with distinct profiles in each seed category. Recalcitrant seed axes displayed a wide array of metabolic, stress response, and signaling proteins, suggesting sustained metabolic activity during storage and the need to address oxidative stress. Conversely, the orthodox seed axes presented a protein profile, reflecting efficient metabolic shutdown, which contributes to their extended viability. The results of the study provide new insights into seed viability and storage longevity mechanisms. They enhance the understanding of seed biology and lay the foundation for further evolutionary research on seeds of different categories.
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Affiliation(s)
- Hanna Fuchs
- Institute of Dendrology, Polish Academy of Sciences, Kórnik, Poland
| | - Aleksandra M. Staszak
- Laboratory of Plant Physiology, Department of Plant Biology and Ecology Faculty of Biology, University of Białystok, Białystok, Poland
| | - Paola A. Vargas
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Mariam Sahrawy
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Antonio J. Serrato
- Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | | | | | - Paweł Głodowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
| | - Katarzyna Rolle
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
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5
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Gentry-Torfer D, Murillo E, Barrington CL, Nie S, Leeming MG, Suwanchaikasem P, Williamson NA, Roessner U, Boughton BA, Kopka J, Martinez-Seidel F. Streamlining Protein Fractional Synthesis Rates Using SP3 Beads and Stable Isotope Mass Spectrometry: A Case Study on the Plant Ribosome. Bio Protoc 2024; 14:e4981. [PMID: 38737506 PMCID: PMC11082790 DOI: 10.21769/bioprotoc.4981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 05/14/2024] Open
Abstract
Ribosomes are an archetypal ribonucleoprotein assembly. Due to ribosomal evolution and function, r-proteins share specific physicochemical similarities, making the riboproteome particularly suited for tailored proteome profiling methods. Moreover, the structural proteome of ribonucleoprotein assemblies reflects context-dependent functional features. Thus, characterizing the state of riboproteomes provides insights to uncover the context-dependent functionality of r-protein rearrangements, as they relate to what has been termed the ribosomal code, a concept that parallels that of the histone code, in which chromatin rearrangements influence gene expression. Compared to high-resolution ribosomal structures, omics methods lag when it comes to offering customized solutions to close the knowledge gap between structure and function that currently exists in riboproteomes. Purifying the riboproteome and subsequent shot-gun proteomics typically involves protein denaturation and digestion with proteases. The results are relative abundances of r-proteins at the ribosome population level. We have previously shown that, to gain insight into the stoichiometry of individual proteins, it is necessary to measure by proteomics bound r-proteins and normalize their intensities by the sum of r-protein abundances per ribosomal complex, i.e., 40S or 60S subunits. These calculations ensure that individual r-protein stoichiometries represent the fraction of each family/paralog relative to the complex, effectively revealing which r-proteins become substoichiometric in specific physiological scenarios. Here, we present an optimized method to profile the riboproteome of any organism as well as the synthesis rates of r-proteins determined by stable isotope-assisted mass spectrometry. Our method purifies the r-proteins in a reversibly denatured state, which offers the possibility for combined top-down and bottom-up proteomics. Our method offers a milder native denaturation of the r-proteome via a chaotropic GuHCl solution as compared with previous studies that use irreversible denaturation under highly acidic conditions to dissociate rRNA and r-proteins. As such, our method is better suited to conserve post-translational modifications (PTMs). Subsequently, our method carefully considers the amino acid composition of r-proteins to select an appropriate protease for digestion. We avoid non-specific protease cleavage by increasing the pH of our standardized r-proteome dilutions that enter the digestion pipeline and by using a digestion buffer that ensures an optimal pH for a reliable protease digestion process. Finally, we provide the R package ProtSynthesis to study the fractional synthesis rates of r-proteins. The package uses physiological parameters as input to determine peptide or protein fractional synthesis rates. Once the physiological parameters are measured, our equations allow a fair comparison between treatments that alter the biological equilibrium state of the system under study. Our equations correct peptide enrichment using enrichments in soluble amino acids, growth rates, and total protein accumulation. As a means of validation, our pipeline fails to find "false" enrichments in non-labeled samples while also filtering out proteins with multiple unique peptides that have different enrichment values, which are rare in our datasets. These two aspects reflect the accuracy of our tool. Our method offers the possibility of elucidating individual r-protein family/paralog abundances, PTM status, fractional synthesis rates, and dynamic assembly into ribosomal complexes if top-down and bottom-up proteomic approaches are used concomitantly, taking one step further into mapping the native and dynamic status of the r-proteome onto high-resolution ribosome structures. In addition, our method can be used to study the proteomes of all macromolecular assemblies that can be purified, although purification is the limiting step, and the efficacy and accuracy of the proteases may be limited depending on the digestion requirements. Key features • Efficient purification of the ribosomal proteome: streamlined procedure for the specific purification of the ribosomal proteome or complex Ome. • Accurate calculation of fractional synthesis rates: robust method for calculating fractional protein synthesis rates in macromolecular complexes under different physiological steady states. • Holistic ribosome methodology focused on plants: comprehensive approach that provides insights into the ribosomes and translational control of plants, demonstrated using cold acclimation [1]. • Tailored strategies for stable isotope labeling in plants: methodology focusing on materials and labeling considerations specific to free and proteinogenic amino acid analysis [2].
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Affiliation(s)
- Dione Gentry-Torfer
- Applied Metabolome Analysis, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- School of Biosciences, The University of Melbourne, Parkville, Australia
| | - Ester Murillo
- Department of Biology, Healthcare and Environment, Section of Plant Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain
| | - Chloe L. Barrington
- Department of Biochemistry & Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA
- RNA Bioscience Initiative, University of Colorado School of Medicine, Aurora, CO, USA
| | - Shuai Nie
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, Australia
| | - Michael G. Leeming
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, Australia
- School of Chemistry, The University of Melbourne, Parkville, Australia
| | | | - Nicholas A. Williamson
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, Australia
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Parkville, Australia
| | - Ute Roessner
- School of Biosciences, The University of Melbourne, Parkville, Australia
- Research School of Biology, The Australian National University, Acton, Australia
| | - Berin A. Boughton
- School of Biosciences, The University of Melbourne, Parkville, Australia
- Department of Animal, Plant and Soil Sciences, La Trobe University, Bundoora, Australia
| | - Joachim Kopka
- Applied Metabolome Analysis, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Federico Martinez-Seidel
- Applied Metabolome Analysis, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- School of Biosciences, The University of Melbourne, Parkville, Australia
- Department of Biochemistry & Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA
- RNA Bioscience Initiative, University of Colorado School of Medicine, Aurora, CO, USA
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6
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Mishra RK, Sharma P, Khaja FT, Uday AB, Hussain T. Cryo-EM structure of wheat ribosome reveals unique features of the plant ribosomes. Structure 2024; 32:562-574.e3. [PMID: 38458197 PMCID: PMC7616111 DOI: 10.1016/j.str.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/16/2023] [Accepted: 02/12/2024] [Indexed: 03/10/2024]
Abstract
Plants being sessile organisms exhibit unique features in ribosomes, which might aid in rapid gene expression and regulation in response to varying environmental conditions. Here, we present high-resolution structures of the 60S and 80S ribosomes from wheat, a monocot staple crop plant (Triticum aestivum). While plant ribosomes have unique plant-specific rRNA modification (Cm1847) in the peptide exit tunnel (PET), the zinc-finger motif in eL34 is absent, and uL4 is extended, making an exclusive interaction network. We note differences in the eL15-helix 11 (25S) interaction, eL6-ES7 assembly, and certain rRNA chemical modifications between monocot and dicot ribosomes. In eukaryotes, we observe highly conserved rRNA modification (Gm75) in 5.8S rRNA and a flipped base (G1506) in PET. These features are likely involved in sensing or stabilizing nascent chain. Finally, we discuss the importance of the universal conservation of three consecutive rRNA modifications in all ribosomes for their interaction with A-site aminoacyl-tRNA.
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Affiliation(s)
- Rishi Kumar Mishra
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru PIN-560012, India
| | - Prafful Sharma
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru PIN-560012, India
| | - Faisal Tarique Khaja
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru PIN-560012, India
| | - Adwaith B Uday
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru PIN-560012, India
| | - Tanweer Hussain
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bengaluru PIN-560012, India.
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7
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Mano NA, Shaikh MA, Widhalm JR, Yoo CY, Mickelbart MV. Transcriptional repression of GTL1 under water-deficit stress promotes anthocyanin biosynthesis to enhance drought tolerance. PLANT DIRECT 2024; 8:e594. [PMID: 38799417 PMCID: PMC11117050 DOI: 10.1002/pld3.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 04/29/2024] [Indexed: 05/29/2024]
Abstract
The transcription factor GT2-LIKE 1 (GTL1) has been implicated in orchestrating a transcriptional network of diverse physiological, biochemical, and developmental processes. In response to water-limiting conditions, GTL1 is a negative regulator of stomatal development, but its potential rolein other water-deficit responses is unknown. We hypothesized that GTL1 regulates transcriptome changes associated with drought tolerance over leaf developmental stages. To test the hypothesis, gene expression was profiled by RNA-seq analysis in emerging and expanding leaves of wild-type and a drought-tolerant gtl1-4 knockout mutant under well-watered and water-deficit conditions. Our comparative analysis of genotype-treatment combinations within leaf developmental age identified 459 and 1073 differentially expressed genes in emerging and expanding leaves, respectively, as water-deficit responsive GTL1-regulated genes. Transcriptional profiling identified a potential role of GTL1 in two important pathways previously linked to drought tolerance: flavonoid and polyamine biosynthesis. In expanding leaves, negative regulation of GTL1 under water-deficit conditions promotes biosynthesis of flavonoids and anthocyanins that may contribute to drought tolerance. Quantification of polyamines did not support a role for GTL1 in these drought-responsive pathways, but this is likely due to the complex nature of polyamine synthesis and turnover. Our global transcriptome analysis suggests that transcriptional repression of GTL1 by water deficit allows plants to activate diverse pathways that collectively contribute to drought tolerance.
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Affiliation(s)
- Noel Anthony Mano
- Department of Botany and Plant PathologyPurdue UniversityWest LafayetteIndianaUSA
- Center for Plant BiologyPurdue UniversityWest LafayetteIndianaUSA
- Department of Biological and Environmental SciencesHeidelberg UniversityTiffinOhioUSA
- Present address:
School of Biological SciencesThe University of UtahSalt Lake CityUtahUSA
| | - Mearaj A. Shaikh
- Center for Plant BiologyPurdue UniversityWest LafayetteIndianaUSA
- Department of Horticulture and Landscape ArchitecturePurdue UniversityWest LafayetteIndianaUSA
| | - Joshua R. Widhalm
- Center for Plant BiologyPurdue UniversityWest LafayetteIndianaUSA
- Department of Horticulture and Landscape ArchitecturePurdue UniversityWest LafayetteIndianaUSA
| | - Chan Yul Yoo
- Present address:
School of Biological SciencesThe University of UtahSalt Lake CityUtahUSA
| | - Michael V. Mickelbart
- Department of Botany and Plant PathologyPurdue UniversityWest LafayetteIndianaUSA
- Center for Plant BiologyPurdue UniversityWest LafayetteIndianaUSA
- Department of Horticulture and Landscape ArchitecturePurdue UniversityWest LafayetteIndianaUSA
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8
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Qin GL, Fu CM, Tang F, Yin J, Guan DL, Shi CY. Population genomics analysis reveals footprints of selective breeding in a rapid-growth variety of Paulownia fortunei with apical dominance. Genomics 2024; 116:110849. [PMID: 38679345 DOI: 10.1016/j.ygeno.2024.110849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024]
Abstract
Paulownia fortunei is an ecologically and economically valuable tree cultivated for its rapid growth and high-quality timber. To enhance Paulownia germplasm, we have developed the elite variety QingT with patented advantages in growth rate and apical dominance. To illuminate the genetic basis of QingT's superior traits, here we harness comparative population genomics to analyze genomic variation patterns between QingT and common Paulownia. We performed whole-genome re-sequencing of 30 QingT and 30 common samples, detecting 15.6 million SNPs and 2.6 million indels. Phylogeny and population structure analyses robustly partitioned common and QingT into distinct groups which indicate robust genome stabilization. QingT exhibited reduced heterozygosity and linkage disequilibrium decay compared to common Paulownia, reflecting high recombination, indicating hybridizing effects with common white-flowered string is the source of its patented advantages. Genome selection scans uncovered 25 regions of 169 genes with elevated nucleotide diversity, indicating selection sweeps among groups. Functional analysis of sweep genes revealed upregulation of ribosomal, biosynthesis, and growth pathways in QingT, implicating enhanced protein production and developmental processes in its rapid growth phenotype. This study's insights comprehensively chart genomic variation during Paulownia breeding, localizing candidate loci governing agronomic traits, and underpinnings of future molecular breeding efforts to boost productivity.
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Affiliation(s)
- Guo-Le Qin
- Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology, Hechi University, Hechi 546300, China; Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, Hechi University, Hechi 546300, China
| | - Chuan-Ming Fu
- Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China
| | - Fan Tang
- Qingtong Advanced Technology Integration Innovation Promotion Center, Qinzhou 535000, China
| | - Jian Yin
- Qingtong Advanced Technology Integration Innovation Promotion Center, Qinzhou 535000, China
| | - De-Long Guan
- Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology, Hechi University, Hechi 546300, China; Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, Hechi University, Hechi 546300, China.
| | - Chen-Yu Shi
- Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology, Hechi University, Hechi 546300, China; Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, Hechi University, Hechi 546300, China.
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9
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Li L, Lu X, Dai P, Ma H. DIA-Based Quantitative Proteomics in the Flower Buds of Two Malus sieversii (Ledeb.) M. Roem Subtypes at Different Overwintering Stages. Int J Mol Sci 2024; 25:2964. [PMID: 38474210 DOI: 10.3390/ijms25052964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Malus sieversii is considered the ancestor of the modern cultivated apple, with a high value for apple tolerance breeding. Despite studies on the temperature adaptability of M. sieversii carried out at a physiological response and the genome level, information on the proteome changes of M. sieversii during dormancy is limited, especially about the M. sieversii subtypes. In this study, a DIA-based approach was employed to screen and identify differential proteins involved in three overwintering periods of flower buds in two M. sieversii subtypes (Malus sieversii f. luteolus, GL; Malus sieversii f. aromaticus, HC) with different overwintering adaptabilities. The proteomic analysis revealed that the number of the down-regulated differential expression proteins (DEPs) was obviously higher than that of the up-regulated DEPs in the HC vs. GL groups, especially at the dormancy stage and dormancy-release stage. Through functional classification of those DEPs, the majority of the DEPs in the HC vs. GL groups were associated with protein processing in the endoplasmic reticulum, oxidative phosphorylation, starch and sucrose metabolism and ribosomes. Through WGCNA analysis, tricarboxylic acid cycle and pyruvate metabolism were highly correlated with the overwintering stages; oxidative phosphorylation and starch and sucrose metabolism were highly correlated with the Malus sieversii subtypes. This result suggests that the down-regulation of DEPs, which are predominantly enriched in these pathways, could potentially contribute to the lower cold tolerance observed in HC during overwintering stage.
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Affiliation(s)
- Lijie Li
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaochen Lu
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Ping Dai
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Huaiyu Ma
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
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10
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Mueller HM, Franzisky BL, Messerer M, Du B, Lux T, White PJ, Carpentier SC, Winkler JB, Schnitzler JP, El-Serehy HA, Al-Rasheid KAS, Al-Harbi N, Alfarraj S, Kudla J, Kangasjärvi J, Reichelt M, Mithöfer A, Mayer KFX, Rennenberg H, Ache P, Hedrich R, Geilfus CM. Integrative multi-omics analyses of date palm (Phoenix dactylifera) roots and leaves reveal how the halophyte land plant copes with sea water. THE PLANT GENOME 2024; 17:e20372. [PMID: 37518859 DOI: 10.1002/tpg2.20372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 06/28/2023] [Accepted: 07/02/2023] [Indexed: 08/01/2023]
Abstract
Date palm (Phoenix dactylifera L.) is able to grow and complete its life cycle while being rooted in highly saline soils. Which of the many well-known salt-tolerance strategies are combined to fine-tune this remarkable resilience is unknown. The precise location, whether in the shoot or the root, where these strategies are employed remains uncertain, leaving us unaware of how the various known salt-tolerance mechanisms are integrated to fine-tune this remarkable resilience. To address this shortcoming, we exposed date palm to a salt stress dose equivalent to seawater for up to 4 weeks and applied integrative multi-omics analyses followed by targeted metabolomics, hormone, and ion analyses. Integration of proteomic into transcriptomic data allowed a view beyond simple correlation, revealing a remarkably high degree of convergence between gene expression and protein abundance. This sheds a clear light on the acclimatization mechanisms employed, which depend on reprogramming of protein biosynthesis. For growth in highly saline habitats, date palm effectively combines various salt-tolerance mechanisms found in both halophytes and glycophytes: "avoidance" by efficient sodium and chloride exclusion at the roots, and "acclimation" by osmotic adjustment, reactive oxygen species scavenging in leaves, and remodeling of the ribosome-associated proteome in salt-exposed root cells. Combined efficiently as in P. dactylifera L., these sets of mechanisms seem to explain the palm's excellent salt stress tolerance.
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Affiliation(s)
- Heike M Mueller
- Institute for Molecular Plant Physiology and Biophysics, Biocenter, University Würzburg, Würzburg, Germany
| | - Bastian L Franzisky
- Department of Soil Science and Plant Nutrition, Hochschule Geisenheim University, Geisenheim, Germany
| | - Maxim Messerer
- Plant Genome and Systems Biology, Helmholtz Center Munich, Neuherberg, Germany
| | - Baoguo Du
- College of Life Science and Biotechnology, Mianyang Normal University, Mianyang, China
- Chair of Tree Physiology, Institute of Forest Sciences, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Thomas Lux
- Plant Genome and Systems Biology, Helmholtz Center Munich, Neuherberg, Germany
| | | | - Sebastien Christian Carpentier
- Facility for SYstems BIOlogy based MAss Spectrometry, SYBIOMA, Proteomics Core Facility, KU Leuven, Leuven, Belgium
- Division of Crop Biotechnics, Laboratory of Tropical Crop Improvement, KU Leuven, Leuven, Belgium
| | - Jana Barbro Winkler
- Research Unit Environmental Simulation (EUS), Institute of Biochemical Plant Pathology, Helmholtz Center Munich, Neuherberg, Germany
| | - Joerg-Peter Schnitzler
- Research Unit Environmental Simulation (EUS), Institute of Biochemical Plant Pathology, Helmholtz Center Munich, Neuherberg, Germany
| | - Hamed A El-Serehy
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Naif Al-Harbi
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saleh Alfarraj
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Jörg Kudla
- Institut für Biologie und Biotechnologie der Pflanzen, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Jaakko Kangasjärvi
- Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Michael Reichelt
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Axel Mithöfer
- Research Group Plant Defense Physiology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Klaus F X Mayer
- Plant Genome and Systems Biology, Helmholtz Center Munich, Neuherberg, Germany
| | - Heinz Rennenberg
- Chair of Tree Physiology, Institute of Forest Sciences, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Peter Ache
- Institute for Molecular Plant Physiology and Biophysics, Biocenter, University Würzburg, Würzburg, Germany
| | - Rainer Hedrich
- Institute for Molecular Plant Physiology and Biophysics, Biocenter, University Würzburg, Würzburg, Germany
| | - Christoph-Martin Geilfus
- Department of Soil Science and Plant Nutrition, Hochschule Geisenheim University, Geisenheim, Germany
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11
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Chaloupsky P, Kolackova M, Dobesova M, Pencik O, Tarbajova V, Capal P, Svec P, Ridoskova A, Bytesnikova Z, Pelcova P, Adam V, Huska D. Mechanistic transcriptome comprehension of Chlamydomonas reinhardtii subjected to black phosphorus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 270:115823. [PMID: 38176180 DOI: 10.1016/j.ecoenv.2023.115823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 12/08/2023] [Accepted: 12/10/2023] [Indexed: 01/06/2024]
Abstract
Two-dimensional materials have recently gained significant awareness. A representative of such materials, black phosphorous (BP), earned attention based on its comprehensive application potential. The presented study focuses on the mode of cellular response underlying the BP interaction with Chlamydomonas reinhardtii as an algal model organism. We observed noticeable ROS formation and changes in outer cellular topology after 72 h of incubation at 5 mg/L BP. Transcriptome profiling was employed to examine C. reinhardtii response after exposure to 25 mg/L BP for a deeper understanding of the associated processes. The RNA sequencing has revealed a comprehensive response with abundant transcript downregulation. The mode of action was attributed to cell wall disruption, ROS elevation, and chloroplast disturbance. Besides many other dysregulated genes, the cell response involved the downregulation of GH9 and gametolysin within a cell wall, pointing to a shift to discrete manipulation with resources. The response also included altered expression of the PRDA1 gene associated with redox governance in chloroplasts implying ROS disharmony. Altered expression of the Cre-miR906-3p, Cre-miR910, and Cre-miR914 pointed to those as potential markers in stress response studies.
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Affiliation(s)
- Pavel Chaloupsky
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Martina Kolackova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Marketa Dobesova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Ondrej Pencik
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Vladimira Tarbajova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Petr Capal
- Institute of Experimental Botany, Centre of the Region Hana for Biotechnological and Agricultural Research, Slechtitelu 241/27, 783 71 Olomouc, Czech Republic
| | - Pavel Svec
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Andrea Ridoskova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Zuzana Bytesnikova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Pavlina Pelcova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic
| | - Dalibor Huska
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic.
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12
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Shanmugam T, Chaturvedi P, Streit D, Ghatak A, Bergelt T, Simm S, Weckwerth W, Schleiff E. Low dose ribosomal DNA P-loop mutation affects development and enforces autophagy in Arabidopsis. RNA Biol 2024; 21:1-15. [PMID: 38156797 PMCID: PMC10761087 DOI: 10.1080/15476286.2023.2298532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2023] [Indexed: 01/03/2024] Open
Abstract
Arabidopsis contains hundreds of ribosomal DNA copies organized within the nucleolar organizing regions (NORs) in chromosomes 2 and 4. There are four major types of variants of rDNA, VAR1-4, based on the polymorphisms of 3' external transcribed sequences. The variants are known to be differentially expressed during plant development. We created a mutant by the CRISPR-Cas9-mediated excision of ~ 25 nt from predominantly NOR4 ribosomal DNA copies, obtaining mosaic mutational events on ~ 5% of all rDNA copies. The excised region consists of P-loop and Helix-82 segments of 25S rRNA. The mutation led to allelic, dosage-dependent defects marked by lateral root inhibition, reduced size, and pointy leaves, all previously observed for defective ribosomal function. The mutation in NOR4 led to dosage compensation from the NOR2 copies by elevated expression of VAR1 in mutants and further associated single-nucleotide variants, thus, resulting in altered rRNA sub-population. Furthermore, the mutants exhibited rRNA maturation defects specifically in the minor pathway typified by 32S pre-rRNA accumulation. Density-gradient fractionation and subsequent RT-PCR of rRNA analyses revealed that mutated copies were not incorporated into the translating ribosomes. The mutants in addition displayed an elevated autophagic flux as shown by the autophagic marker GFP-ATG8e, likely related to ribophagy.
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Affiliation(s)
- Thiruvenkadam Shanmugam
- Molecular Cell Biology of Plants, Institute for Molecular Biosciences & Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Palak Chaturvedi
- Molecular Systems Biology (MOSYS), Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria
| | - Deniz Streit
- Molecular Cell Biology of Plants, Institute for Molecular Biosciences & Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Arindam Ghatak
- Molecular Systems Biology (MOSYS), Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria
| | - Thorsten Bergelt
- Molecular Cell Biology of Plants, Institute for Molecular Biosciences & Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Stefan Simm
- Molecular Cell Biology of Plants, Institute for Molecular Biosciences & Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
- Institute of Bioinformatics, University Medicine Greifswald, Greifswald, Germany
| | - Wolfram Weckwerth
- Molecular Systems Biology (MOSYS), Department of Functional and Evolutionary Ecology, University of Vienna, Vienna, Austria
- Vienna Metabolomics Center (VIME), University of Vienna, Vienna, Austria
| | - Enrico Schleiff
- Molecular Cell Biology of Plants, Institute for Molecular Biosciences & Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
- Frankfurt Institute for Advanced Studies, Frankfurt am Main, Germany
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13
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Michon M, Müller-Schiffmann A, Lingappa AF, Yu SF, Du L, Deiter F, Broce S, Mallesh S, Crabtree J, Lingappa UF, Macieik A, Müller L, Ostermann PN, Andrée M, Adams O, Schaal H, Hogan RJ, Tripp RA, Appaiah U, Anand SK, Campi TW, Ford MJ, Reed JC, Lin J, Akintunde O, Copeland K, Nichols C, Petrouski E, Moreira AR, Jiang IT, DeYarman N, Brown I, Lau S, Segal I, Goldsmith D, Hong S, Asundi V, Briggs EM, Phyo NS, Froehlich M, Onisko B, Matlack K, Dey D, Lingappa JR, Prasad MD, Kitaygorodskyy A, Solas D, Boushey H, Greenland J, Pillai S, Lo MK, Montgomery JM, Spiropoulou CF, Korth C, Selvarajah S, Paulvannan K, Lingappa VR. A Pan-Respiratory Antiviral Chemotype Targeting a Host Multi-Protein Complex. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2021.01.17.426875. [PMID: 34931190 PMCID: PMC8687465 DOI: 10.1101/2021.01.17.426875] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We present a novel small molecule antiviral chemotype that was identified by an unconventional cell-free protein synthesis and assembly-based phenotypic screen for modulation of viral capsid assembly. Activity of PAV-431, a representative compound from the series, has been validated against infectious virus in multiple cell culture models for all six families of viruses causing most respiratory disease in humans. In animals this chemotype has been demonstrated efficacious for Porcine Epidemic Diarrhea Virus (a coronavirus) and Respiratory Syncytial Virus (a paramyxovirus). PAV-431 is shown to bind to the protein 14-3-3, a known allosteric modulator. However, it only appears to target the small subset of 14-3-3 which is present in a dynamic multi-protein complex whose components include proteins implicated in viral lifecycles and in innate immunity. The composition of this target multi-protein complex appears to be modified upon viral infection and largely restored by PAV-431 treatment. Our findings suggest a new paradigm for understanding, and drugging, the host-virus interface, which leads to a new clinical therapeutic strategy for treatment of respiratory viral disease.
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Affiliation(s)
- Maya Michon
- Prosetta Biosciences, San Francisco, CA, USA
| | | | | | | | - Li Du
- Vitalant Research Institute, San Francisco, CA, USA
| | - Fred Deiter
- Veterans Administration Medical Center, San Francisco, CA, USA
| | - Sean Broce
- Prosetta Biosciences, San Francisco, CA, USA
| | | | - Jackelyn Crabtree
- University of Georgia, Animal Health Research Center, Athens, GA, USA
| | | | | | - Lisa Müller
- Institute of Virology, Heinrich Heine University, Düsseldorf, Germany
| | | | - Marcel Andrée
- Institute of Virology, Heinrich Heine University, Düsseldorf, Germany
| | - Ortwin Adams
- Institute of Virology, Heinrich Heine University, Düsseldorf, Germany
| | - Heiner Schaal
- Institute of Virology, Heinrich Heine University, Düsseldorf, Germany
| | - Robert J. Hogan
- University of Georgia, Animal Health Research Center, Athens, GA, USA
| | - Ralph A. Tripp
- University of Georgia, Animal Health Research Center, Athens, GA, USA
| | | | | | | | | | - Jonathan C. Reed
- Dept. of Global Health, University of Washington, Seattle, WA, USA
| | - Jim Lin
- Prosetta Biosciences, San Francisco, CA, USA
| | | | | | | | | | | | | | | | - Ian Brown
- Prosetta Biosciences, San Francisco, CA, USA
| | - Sharon Lau
- Prosetta Biosciences, San Francisco, CA, USA
| | - Ilana Segal
- Prosetta Biosciences, San Francisco, CA, USA
| | | | - Shi Hong
- Prosetta Biosciences, San Francisco, CA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | - John Greenland
- Veterans Administration Medical Center, San Francisco, CA, USA
- University of California, San Francisco, CA, USA
| | - Satish Pillai
- Vitalant Research Institute, San Francisco, CA, USA
- University of California, San Francisco, CA, USA
| | - Michael K. Lo
- Viral Special Pathogens Branch, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Joel M. Montgomery
- Viral Special Pathogens Branch, US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Carsten Korth
- Institute of Neuropathology, Heinrich Heine University, Düsseldorf, Germany
| | | | | | - Vishwanath R. Lingappa
- Prosetta Biosciences, San Francisco, CA, USA
- University of California, San Francisco, CA, USA
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14
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Siodmak A, Martinez-Seidel F, Rayapuram N, Bazin J, Alhoraibi H, Gentry-Torfer D, Tabassum N, Sheikh AH, Kise J, Blilou I, Crespi M, Kopka J, Hirt H. Dynamics of ribosome composition and ribosomal protein phosphorylation in immune signaling in Arabidopsis thaliana. Nucleic Acids Res 2023; 51:11876-11892. [PMID: 37823590 PMCID: PMC10681734 DOI: 10.1093/nar/gkad827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 10/13/2023] Open
Abstract
In plants, the detection of microbe-associated molecular patterns (MAMPs) induces primary innate immunity by the activation of mitogen-activated protein kinases (MAPKs). We show here that the MAMP-activated MAPK MPK6 not only modulates defense through transcriptional regulation but also via the ribosomal protein translation machinery. To understand the effects of MPK6 on ribosomes and their constituent ribosomal proteins (RPs), polysomes, monosomes and the phosphorylation status of the RPs, MAMP-treated WT and mpk6 mutant plants were analysed. MAMP-activation induced rapid changes in RP composition of monosomes, polysomes and in the 60S ribosomal subunit in an MPK6-specific manner. Phosphoproteome analysis showed that MAMP-activation of MPK6 regulates the phosphorylation status of the P-stalk ribosomal proteins by phosphorylation of RPP0 and the concomitant dephosphorylation of RPP1 and RPP2. These events coincide with a significant decrease in the abundance of ribosome-bound RPP0s, RPP1s and RPP3s in polysomes. The P-stalk is essential in regulating protein translation by recruiting elongation factors. Accordingly, we found that RPP0C mutant plants are compromised in basal resistance to Pseudomonas syringae infection. These data suggest that MAMP-induced defense also involves MPK6-induced regulation of P-stalk proteins, highlighting a new role of ribosomal regulation in plant innate immunity.
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Affiliation(s)
- Anna Siodmak
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Federico Martinez-Seidel
- Willmitzer Department, Max Planck-Institute of Molecular Plant Physiology, Potsdam, Germany
- School of Biosciences, The University of Melbourne, Parkville, VIC, Australia
| | - Naganand Rayapuram
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Jeremie Bazin
- CNRS, INRA, Institute of Plant Sciences Paris-Saclay IPS2, Univ Paris Sud, Univ Evry, Univ Paris-Diderot, Sorbonne Paris-Cite, Universite Paris-Saclay, Orsay, France
| | - Hanna Alhoraibi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21551 Jeddah, Saudi Arabia
| | - Dione Gentry-Torfer
- Willmitzer Department, Max Planck-Institute of Molecular Plant Physiology, Potsdam, Germany
- School of Biosciences, The University of Melbourne, Parkville, VIC, Australia
| | - Naheed Tabassum
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Arsheed H Sheikh
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - José Kenyi González Kise
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Ikram Blilou
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Martin Crespi
- CNRS, INRA, Institute of Plant Sciences Paris-Saclay IPS2, Univ Paris Sud, Univ Evry, Univ Paris-Diderot, Sorbonne Paris-Cite, Universite Paris-Saclay, Orsay, France
| | - Joachim Kopka
- Willmitzer Department, Max Planck-Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Heribert Hirt
- Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
- Max F. Perutz Laboratories, University of Vienna, Dr. Bohrgasse 9, 1030 Vienna, Austria
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15
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Zakrzewska-Placzek M, Golisz-Mocydlarz A, Krzyszton M, Piotrowska J, Lichocka M, Kufel J. The nucleolar protein NOL12 is required for processing of large ribosomal subunit rRNA precursors in Arabidopsis. BMC PLANT BIOLOGY 2023; 23:538. [PMID: 37919659 PMCID: PMC10623804 DOI: 10.1186/s12870-023-04561-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND NOL12 5'-3' exoribonucleases, conserved among eukaryotes, play important roles in pre-rRNA processing, ribosome assembly and export. The most well-described yeast counterpart, Rrp17, is required for maturation of 5.8 and 25S rRNAs, whereas human hNOL12 is crucial for the separation of the large (LSU) and small (SSU) ribosome subunit rRNA precursors. RESULTS In this study we demonstrate that plant AtNOL12 is also involved in rRNA biogenesis, specifically in the processing of the LSU rRNA precursor, 27S pre-rRNA. Importantly, the absence of AtNOL12 alters the expression of many ribosomal protein and ribosome biogenesis genes. These changes could potentially exacerbate rRNA biogenesis defects, or, conversely, they might stem from the disturbed ribosome assembly caused by delayed pre-rRNA processing. Moreover, exposure of the nol12 mutant to stress factors, including heat and pathogen Pseudomonas syringae, enhances the observed molecular phenotypes, linking pre-rRNA processing to stress response pathways. The aberrant rRNA processing, dependent on AtNOL12, could impact ribosome function, as suggested by improved mutant resistance to ribosome-targeting antibiotics. CONCLUSION Despite extensive studies, the pre-rRNA processing pathway in plants remains insufficiently characterized. Our investigation reveals the involvement of AtNOL12 in the maturation of rRNA precursors, correlating this process to stress response in Arabidopsis. These findings contribute to a more comprehensive understanding of plant ribosome biogenesis.
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Affiliation(s)
- Monika Zakrzewska-Placzek
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, Warsaw, 02-106, Poland.
| | - Anna Golisz-Mocydlarz
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, Warsaw, 02-106, Poland
| | - Michal Krzyszton
- Laboratory of Seeds Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, Warsaw, 02-106, Poland
| | - Justyna Piotrowska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, Warsaw, 02-106, Poland
| | - Malgorzata Lichocka
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, Warsaw, 02-106, Poland
| | - Joanna Kufel
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a, Warsaw, 02-106, Poland.
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16
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Liu L, Trendel J, Jiang G, Liu Y, Bruckmann A, Küster B, Sprunck S, Dresselhaus T, Bleckmann A. RBPome identification in egg-cell like callus of Arabidopsis. Biol Chem 2023; 404:1137-1149. [PMID: 37768858 DOI: 10.1515/hsz-2023-0195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 09/11/2023] [Indexed: 09/30/2023]
Abstract
RNA binding proteins (RBPs) have multiple and essential roles in transcriptional and posttranscriptional regulation of gene expression in all living organisms. Their biochemical identification in the proteome of a given cell or tissue requires significant protein amounts, which limits studies in rare and highly specialized cells. As a consequence, we know almost nothing about the role(s) of RBPs in reproductive processes such as egg cell development, fertilization and early embryogenesis in flowering plants. To systematically identify the RBPome of egg cells in the model plant Arabidopsis, we performed RNA interactome capture (RIC) experiments using the egg cell-like RKD2-callus and were able to identify 728 proteins associated with poly(A+)-RNA. Transcripts for 97 % of identified proteins could be verified in the egg cell transcriptome. 46 % of identified proteins can be associated with the RNA life cycle. Proteins involved in mRNA binding, RNA processing and metabolism are highly enriched. Compared with the few available RBPome datasets of vegetative plant tissues, we identified 475 egg cell-enriched RBPs, which will now serve as a resource to study RBP function(s) during egg cell development, fertilization and early embryogenesis. First candidates were already identified showing an egg cell-specific expression pattern in ovules.
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Affiliation(s)
- Liping Liu
- Cell Biology and Plant Biochemistry, University of Regensburg, D-93053 Regensburg, Germany
| | - Jakob Trendel
- Chair of Proteomics and Bioanalytics, Technical University of Munich (TUM), D-85354 Freising, Germany
| | - Guojing Jiang
- Cell Biology and Plant Biochemistry, University of Regensburg, D-93053 Regensburg, Germany
| | - Yanhui Liu
- College of Life Science, Longyan University, Longyan 364012, China
| | - Astrid Bruckmann
- Biochemistry I, University of Regensburg, D-93053 Regensburg, Germany
| | - Bernhard Küster
- Chair of Proteomics and Bioanalytics, Technical University of Munich (TUM), D-85354 Freising, Germany
| | - Stefanie Sprunck
- Cell Biology and Plant Biochemistry, University of Regensburg, D-93053 Regensburg, Germany
| | - Thomas Dresselhaus
- Cell Biology and Plant Biochemistry, University of Regensburg, D-93053 Regensburg, Germany
| | - Andrea Bleckmann
- Cell Biology and Plant Biochemistry, University of Regensburg, D-93053 Regensburg, Germany
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17
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Chang Z, Wang X, Pan X, Yan W, Wu W, Zhuang Y, Li Z, Wang D, Yuan S, Xu C, Chen Z, Liu D, Chen ZS, Tang X, Wu J. The ribosomal protein P0A is required for embryo development in rice. BMC PLANT BIOLOGY 2023; 23:465. [PMID: 37798654 PMCID: PMC10552409 DOI: 10.1186/s12870-023-04445-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 09/06/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND The P-stalk is a conserved and vital structural element of ribosome. The eukaryotic P-stalk exists as a P0-(P1-P2)2 pentameric complex, in which P0 function as a base structure for incorporating the stalk onto 60S pre-ribosome. Prior studies have suggested that P0 genes are indispensable for survival in yeast and animals. However, the functions of P0 genes in plants remain elusive. RESULTS In the present study, we show that rice has three P0 genes predicted to encode highly conserved proteins OsP0A, OsP0B and OsP0C. All of these P0 proteins were localized both in cytoplasm and nucleus, and all interacted with OsP1. Intriguingly, the transcripts of OsP0A presented more than 90% of the total P0 transcripts. Moreover, knockout of OsP0A led to embryo lethality, while single or double knockout of OsP0B and OsP0C did not show any visible defects in rice. The genomic DNA of OsP0A could well complement the lethal phenotypes of osp0a mutant. Finally, sequence and syntenic analyses revealed that OsP0C evolved from OsP0A, and that duplication of genomic fragment harboring OsP0C further gave birth to OsP0B, and both of these duplication events might happen prior to the differentiation of indica and japonica subspecies in rice ancestor. CONCLUSION These data suggested that OsP0A functions as the predominant P0 gene, playing an essential role in embryo development in rice. Our findings highlighted the importance of P0 genes in plant development.
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Affiliation(s)
- Zhenyi Chang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xia Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Xiaoying Pan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Wei Yan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Wenshi Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Yi Zhuang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Zhiai Li
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Dan Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Shuting Yuan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Chunjue Xu
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China
| | - Zhufeng Chen
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China
| | - Dongfeng Liu
- Shenzhen Agricultural Technology Promotion Center, Shenzhen, 518055, China
| | - Zi Sheng Chen
- Shenzhen Agricultural Technology Promotion Center, Shenzhen, 518055, China.
| | - Xiaoyan Tang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China.
| | - Jianxin Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
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18
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Chen X, Chen H, Shen T, Luo Q, Xu M, Yang Z. The miRNA-mRNA Regulatory Modules of Pinus massoniana Lamb. in Response to Drought Stress. Int J Mol Sci 2023; 24:14655. [PMID: 37834103 PMCID: PMC10572226 DOI: 10.3390/ijms241914655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Masson pine (Pinus massoniana Lamb.) is a major fast-growing woody tree species and pioneer species for afforestation in barren sites in southern China. However, the regulatory mechanism of gene expression in P. massoniana under drought remains unclear. To uncover candidate microRNAs, their expression profiles, and microRNA-mRNA interactions, small RNA-seq was used to investigate the transcriptome from seedling roots under drought and rewatering in P. massoniana. A total of 421 plant microRNAs were identified. Pairwise differential expression analysis between treatment and control groups unveiled 134, 156, and 96 differential expressed microRNAs at three stages. These constitute 248 unique microRNAs, which were subsequently categorized into six clusters based on their expression profiles. Degradome sequencing revealed that these 248 differentially expressed microRNAs targeted 2069 genes. Gene Ontology enrichment analysis suggested that these target genes were related to translational and posttranslational regulation, cell wall modification, and reactive oxygen species scavenging. miRNAs such as miR482, miR398, miR11571, miR396, miR166, miRN88, and miRN74, along with their target genes annotated as F-box/kelch-repeat protein, 60S ribosomal protein, copper-zinc superoxide dismutase, luminal-binding protein, S-adenosylmethionine synthase, and Early Responsive to Dehydration Stress may play critical roles in drought response. This study provides insights into microRNA responsive to drought and rewatering in Masson pine and advances the understanding of drought tolerance mechanisms in Pinus.
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Affiliation(s)
- Xinhua Chen
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan Road 1, Guangzhou 510520, China;
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China;
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
| | - Hu Chen
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
| | - Tengfei Shen
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China;
| | - Qunfeng Luo
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
| | - Meng Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China;
| | - Zhangqi Yang
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
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19
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Delorme-Hinoux V, Mbodj A, Brando S, De Bures A, Llauro C, Covato F, Garrigue J, Guisset C, Borrut J, Mirouze M, Reichheld JP, Sáez-Vásquez J. 45S rDNA Diversity In Natura as One Step towards Ribosomal Heterogeneity in Arabidopsis thaliana. PLANTS (BASEL, SWITZERLAND) 2023; 12:2722. [PMID: 37514338 PMCID: PMC10386311 DOI: 10.3390/plants12142722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023]
Abstract
The keystone of ribosome biogenesis is the transcription of 45S rDNA. The Arabidopsis thaliana genome contains hundreds of 45S rDNA units; however, they are not all transcribed. Notably, 45S rDNA units contain insertions/deletions revealing the existence of heterogeneous rRNA genes and, likely, heterogeneous ribosomes for rRNAs. In order to obtain an overall picture of 45S rDNA diversity sustaining the synthesis of rRNAs and, subsequently, of ribosomes in natura, we took advantage of 320 new occurrences of Arabidopsis thaliana as a metapopulation named At66, sampled from 0 to 1900 m of altitude in the eastern Pyrenees in France. We found that the 45S rDNA copy number is very dynamic in natura and identified new genotypes for both 5' and 3' External Transcribed Spacers (ETS). Interestingly, the highest 5'ETS genotype diversity is found in altitude while the highest 3'ETS genotype diversity is found at sea level. Structural analysis of 45S rDNA also shows conservation in natura of specific 5'ETS and 3'ETS sequences/features required to control rDNA expression and the processing of rRNAs. In conclusion, At66 is a worthwhile natural laboratory, and unraveled 45S rDNA diversity represents an interesting starting material to select subsets for rDNA transcription and alter the rRNA composition of ribosomes both intra- and inter-site.
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Affiliation(s)
- Valérie Delorme-Hinoux
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- EMR LGDP/MANGO, Mechanisms of Adaptation and Genomics, IRD-CNRS-UPVD, 66860 Perpignan, France
- Association Charles Flahault, 66350 Toulouges, France
| | - Assane Mbodj
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- EMR LGDP/MANGO, Mechanisms of Adaptation and Genomics, IRD-CNRS-UPVD, 66860 Perpignan, France
- Institut de Recherche pour le Développement (IRD), ECOBIO, 34000 Montpellier, France
| | - Sophie Brando
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
| | - Anne De Bures
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
| | - Christel Llauro
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- EMR LGDP/MANGO, Mechanisms of Adaptation and Genomics, IRD-CNRS-UPVD, 66860 Perpignan, France
| | - Fabrice Covato
- FRNC, Fédération des Réserves Naturelles Catalanes, 66500 Prades, France
| | - Joseph Garrigue
- FRNC, Fédération des Réserves Naturelles Catalanes, 66500 Prades, France
| | - Claude Guisset
- Association Charles Flahault, 66350 Toulouges, France
- FRNC, Fédération des Réserves Naturelles Catalanes, 66500 Prades, France
| | | | - Marie Mirouze
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- EMR LGDP/MANGO, Mechanisms of Adaptation and Genomics, IRD-CNRS-UPVD, 66860 Perpignan, France
- Institut de Recherche pour le Développement (IRD), ECOBIO, 34000 Montpellier, France
| | - Jean-Philippe Reichheld
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
| | - Julio Sáez-Vásquez
- Université de Perpignan Via Domitia (UPVD), Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
- Centre National de la Recherche Scientifique, Laboratoire Génome et Développement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France
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20
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Chambard M, Albert B, Cadiou M, Auby S, Profizi C, Boulogne I. Living yeast-based biostimulants: different genes for the same results? FRONTIERS IN PLANT SCIENCE 2023; 14:1171564. [PMID: 37404542 PMCID: PMC10315835 DOI: 10.3389/fpls.2023.1171564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 05/31/2023] [Indexed: 07/06/2023]
Abstract
Nowadays, many products are available in the plant biostimulants market. Among them, living yeast-based biostimulants are also commercialized. Given the living aspect of these last products, the reproducibility of their effects should be investigated to ensure end-users' confidence. Therefore, this study aimed to compare the effects of a living yeast-based biostimulant between two different soybean cultures. These two cultures named C1 and C2 were conducted on the same variety and soil but in different locations and dates until the VC developmental stage (unifoliate leaves unrolled), with Bradyrhizobium japonicum (control and Bs condition) and with and without biostimulant coating seed treatment. The foliar transcriptomic analysis done first showed a high gene expression difference between the two cultures. Despite this first result, a secondary analysis seemed to show that this biostimulant led to a similar pathway enhancement in plants and with common genes even if the expressed genes were different between the two cultures. The pathways which seem to be reproducibly impacted by this living yeast-based biostimulant are abiotic stress tolerance and cell wall/carbohydrate synthesis. Impacting these pathways may protect the plant from abiotic stresses and maintain a higher level of sugars in plant.
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Affiliation(s)
- Marie Chambard
- Univ Rouen Normandie, GLYCOMEV UR 4358, SFR Normandie Végétal FED 4277, Innovation Chimie Carnot, IRIB, Rouen, France
| | | | | | - Sarah Auby
- Agrauxine by Lesaffre, Beaucouzé, France
| | | | - Isabelle Boulogne
- Univ Rouen Normandie, GLYCOMEV UR 4358, SFR Normandie Végétal FED 4277, Innovation Chimie Carnot, IRIB, Rouen, France
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21
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Fernandes R, Ostendorp A, Ostendorp S, Mehrmann J, Falke S, Graewert MA, Weingartner M, Kehr J, Hoth S. Structural and functional analysis of a plant nucleolar RNA chaperone-like protein. Sci Rep 2023; 13:9656. [PMID: 37316549 DOI: 10.1038/s41598-023-36426-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/03/2023] [Indexed: 06/16/2023] Open
Abstract
Ribosome biogenesis is a key process in all eukaryotic cells that requires hundreds of ribosome biogenesis factors (RBFs), which are essential to build the mature ribosomes consisting of proteins and rRNAs. The processing of the required rRNAs has been studied extensively in yeast and mammals, but in plants much is still unknown. In this study, we focused on a RBF from A. thaliana that we named NUCLEOLAR RNA CHAPERONE-LIKE 1 (NURC1). NURC1 was localized in the nucleolus of plant cell nuclei, and other plant RBF candidates shared the same localization. SEC-SAXS experiments revealed that NURC1 has an elongated and flexible structure. In addition, SEC-MALLS experiments confirmed that NURC1 was present in its monomeric form with a molecular weight of around 28 kDa. RNA binding was assessed by performing microscale thermophoresis with the Arabidopsis internal transcribed spacer 2 (ITS2) of the polycistronic pre-rRNA precursor, which contains the 5.8S, 18S, and 25S rRNA. NURC1 showed binding activity to the ITS2 with a dissociation constant of 228 nM and exhibited RNA chaperone-like activity. Our data suggested that NURC1 may have a function in pre-rRNA processing and thus ribosome biogenesis.
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Affiliation(s)
- Rita Fernandes
- Molecular Plant Physiology, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany
- Molecular Plant Genetics, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany
| | - Anna Ostendorp
- Molecular Plant Genetics, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany
| | - Steffen Ostendorp
- Molecular Plant Genetics, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany
| | - Judith Mehrmann
- Molecular Plant Physiology, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany
| | - Sven Falke
- Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607, Hamburg, Germany
| | | | - Magdalena Weingartner
- Molecular Plant Physiology, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany
| | - Julia Kehr
- Molecular Plant Genetics, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany
| | - Stefan Hoth
- Molecular Plant Physiology, Institute of Plant Science and Microbiology, Department of Biology, Universität Hamburg, Hamburg, Germany.
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22
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Smirnova J, Loerke J, Kleinau G, Schmidt A, Bürger J, Meyer EH, Mielke T, Scheerer P, Bock R, Spahn CMT, Zoschke R. Structure of the actively translating plant 80S ribosome at 2.2 Å resolution. NATURE PLANTS 2023; 9:987-1000. [PMID: 37156858 PMCID: PMC10281867 DOI: 10.1038/s41477-023-01407-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 03/29/2023] [Indexed: 05/10/2023]
Abstract
In plant cells, translation occurs in three compartments: the cytosol, the plastids and the mitochondria. While the structures of the (prokaryotic-type) ribosomes in plastids and mitochondria are well characterized, high-resolution structures of the eukaryotic 80S ribosomes in the cytosol have been lacking. Here the structure of translating tobacco (Nicotiana tabacum) 80S ribosomes was solved by cryo-electron microscopy with a global resolution of 2.2 Å. The ribosome structure includes two tRNAs, decoded mRNA and the nascent peptide chain, thus providing insights into the molecular underpinnings of the cytosolic translation process in plants. The map displays conserved and plant-specific rRNA modifications and the positions of numerous ionic cofactors, and it uncovers the role of monovalent ions in the decoding centre. The model of the plant 80S ribosome enables broad phylogenetic comparisons that reveal commonalities and differences in the ribosomes of plants and those of other eukaryotes, thus putting our knowledge about eukaryotic translation on a firmer footing.
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Affiliation(s)
- Julia Smirnova
- Institute of Medical Physics and Biophysics, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
| | - Justus Loerke
- Institute of Medical Physics and Biophysics, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Gunnar Kleinau
- Institute of Medical Physics and Biophysics, Group Protein X-ray Crystallography and Signal Transduction, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Andrea Schmidt
- Institute of Medical Physics and Biophysics, Group Protein X-ray Crystallography and Signal Transduction, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Jörg Bürger
- Institute of Medical Physics and Biophysics, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Microscopy and Cryo-Electron Microscopy Service Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Etienne H Meyer
- Department III, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Institut für Pflanzenphysiologie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany
| | - Thorsten Mielke
- Microscopy and Cryo-Electron Microscopy Service Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Patrick Scheerer
- Institute of Medical Physics and Biophysics, Group Protein X-ray Crystallography and Signal Transduction, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Ralph Bock
- Department III, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany.
| | - Christian M T Spahn
- Institute of Medical Physics and Biophysics, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
| | - Reimo Zoschke
- Department III, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany.
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23
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Assmann SM, Chou HL, Bevilacqua PC. Rock, scissors, paper: How RNA structure informs function. THE PLANT CELL 2023; 35:1671-1707. [PMID: 36747354 DOI: 10.1093/plcell/koad026] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/05/2023] [Accepted: 01/30/2023] [Indexed: 05/30/2023]
Abstract
RNA can fold back on itself to adopt a wide range of structures. These range from relatively simple hairpins to intricate 3D folds and can be accompanied by regulatory interactions with both metabolites and macromolecules. The last 50 yr have witnessed elucidation of an astonishing array of RNA structures including transfer RNAs, ribozymes, riboswitches, the ribosome, the spliceosome, and most recently entire RNA structuromes. These advances in RNA structural biology have deepened insight into fundamental biological processes including gene editing, transcription, translation, and structure-based detection and response to temperature and other environmental signals. These discoveries reveal that RNA can be relatively static, like a rock; that it can have catalytic functions of cutting bonds, like scissors; and that it can adopt myriad functional shapes, like paper. We relate these extraordinary discoveries in the biology of RNA structure to the plant way of life. We trace plant-specific discovery of ribozymes and riboswitches, alternative splicing, organellar ribosomes, thermometers, whole-transcriptome structuromes and pan-structuromes, and conclude that plants have a special set of RNA structures that confer unique types of gene regulation. We finish with a consideration of future directions for the RNA structure-function field.
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Affiliation(s)
- Sarah M Assmann
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
- Center for RNA Molecular Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Hong-Li Chou
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Philip C Bevilacqua
- Center for RNA Molecular Biology, Pennsylvania State University, University Park, PA 16802, USA
- Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA 16802, USA
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24
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McGee JP, Armache JP, Lindner SE. Ribosome heterogeneity and specialization of Plasmodium parasites. PLoS Pathog 2023; 19:e1011267. [PMID: 37053161 PMCID: PMC10101515 DOI: 10.1371/journal.ppat.1011267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Affiliation(s)
- James P McGee
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, Pennsylvania, United States of America
- Huck Center for Malaria Research, Pennsylvania State University, Pennsylvania, United States of America
| | - Jean-Paul Armache
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, Pennsylvania, United States of America
- Center for Eukaryotic Gene Regulation, Pennsylvania State University, Pennsylvania, United States of America
| | - Scott E Lindner
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, Pennsylvania, United States of America
- Huck Center for Malaria Research, Pennsylvania State University, Pennsylvania, United States of America
- Center for Eukaryotic Gene Regulation, Pennsylvania State University, Pennsylvania, United States of America
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25
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Sasaki S, Murakami T, Yasumuro M, Makita A, Oi Y, Hiragori Y, Watanabe S, Kudo R, Hayashi N, Ohbayashi I, Sugiyama M, Yamashita Y, Naito S, Onouchi H. Upstream open reading frame-mediated upregulation of ANAC082 expression in response to nucleolar stress in Arabidopsis. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2023; 40:21-30. [PMID: 38213914 PMCID: PMC10777128 DOI: 10.5511/plantbiotechnology.22.1215a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/15/2022] [Indexed: 01/13/2024]
Abstract
Perturbations in ribosome biogenesis cause a type of cellular stress called nucleolar or ribosomal stress, which triggers adaptive responses in both animal and plant cells. The Arabidopsis ANAC082 transcription factor has been identified as a key mediator of the plant nucleolar stress response. The 5'-untranslated region (5'-UTR) of ANAC082 mRNA contains an upstream ORF (uORF) encoding an evolutionarily conserved amino acid sequence. Here, we report that this uORF mediates the upregulation of ANAC082 expression in response to nucleolar stress. When transgenic Arabidopsis plants containing a luciferase reporter gene under the control of the ANAC082 promoter and 5'-UTR were treated with reagents that induced nucleolar stress, expression of the reporter gene was enhanced in a uORF sequence-dependent manner. Additionally, we examined the effect of an endoplasmic reticulum (ER) stress-inducing reagent on reporter gene expression because the closest homolog of ANAC082 in Arabidopsis, ANAC103, is involved in the ER stress response. However, the ANAC082 uORF did not respond to ER stress. Interestingly, although ANAC103 has a uORF with an amino acid sequence similar to that of the ANAC082 uORF, the C-terminal sequence critical for regulation is not well conserved among ANAC103 homologs in Brassicaceae. Transient expression assays revealed that unlike the ANAC082 uORF, the ANAC103 uORF does not exert a sequence-dependent repressive effect. Altogether, our findings suggest that the ANAC082 uORF is important for the nucleolar stress response but not for the ER stress response, and that for this reason, the uORF sequence-dependent regulation was lost in ANAC103 during evolution.
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Affiliation(s)
- Shun Sasaki
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Toru Murakami
- Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Miharu Yasumuro
- Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Ayaka Makita
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Yutaro Oi
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Yuta Hiragori
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Shun Watanabe
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Rin Kudo
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Noriya Hayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Iwai Ohbayashi
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan R.O.C
- Institute of Tropical Plant Sciences and Microbiology, National Cheng Kung University, Tainan 701, Taiwan R.O.C
| | - Munetaka Sugiyama
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yui Yamashita
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Satoshi Naito
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
- Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - Hitoshi Onouchi
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
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26
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Wong CE, Zhang S, Xu T, Zhang Y, Teo ZWN, Yan A, Shen L, Yu H. Shaping the landscape of N6-methyladenosine RNA methylation in Arabidopsis. PLANT PHYSIOLOGY 2023; 191:2045-2063. [PMID: 36627133 PMCID: PMC10022626 DOI: 10.1093/plphys/kiad010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
N 6-methyladenosine (m6A) modification on messenger RNAs (mRNAs) is deposited by evolutionarily conserved methyltransferases (writers). How individual m6A writers sculpt the overall landscape of the m6A methylome and the resulting biological impact in multicellular organisms remains unknown. Here, we systematically surveyed the quantitative m6A methylomes at single-nucleotide resolution and their corresponding transcriptomes in Arabidopsis (Arabidopsis thaliana) bearing respective impaired m6A writers. The m6A sites associated with the five Arabidopsis writers were located mostly within 3' untranslated regions with peaks at around 100 bp downstream of stop codons. m6A predominantly promoted the usage of distal poly(A) sites but had little effect on RNA splicing. Notably, impaired m6A writers resulted in hypomethylation and downregulation of transcripts encoding ribosomal proteins, indicating a possible correlation between m6A and protein translation. Besides the common effects on mRNA metabolism and biological functions uniquely exerted by different Arabidopsis m6A writers compared with their counterparts in human cell lines, our analyses also revealed the functional specificity of individual Arabidopsis m6A writers in plant development and response to stresses. Our findings thus reveal insights into the biological roles of various Arabidopsis m6A writers and their cognate counterparts in other multicellular m6A methyltransferase complexes.
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Affiliation(s)
- Chui Eng Wong
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore, Singapore
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604 Singapore, Singapore
| | - Songyao Zhang
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore, Singapore
| | - Tao Xu
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore, Singapore
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604 Singapore, Singapore
| | - Yu Zhang
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604 Singapore, Singapore
| | - Zhi Wei Norman Teo
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore, Singapore
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604 Singapore, Singapore
| | - An Yan
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore, Singapore
| | - Lisha Shen
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604 Singapore, Singapore
| | - Hao Yu
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore, Singapore
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604 Singapore, Singapore
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Fakih Z, Plourde MB, Nkouankou CET, Fourcassié V, Bourassa S, Droit A, Germain H. Specific alterations in riboproteomes composition of isonicotinic acid treated arabidopsis seedlings. PLANT MOLECULAR BIOLOGY 2023; 111:379-392. [PMID: 36790538 PMCID: PMC10090002 DOI: 10.1007/s11103-022-01332-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/25/2022] [Indexed: 06/18/2023]
Abstract
Plants have developed strategies to deal with the great variety of challenges they are exposed to. Among them, common targets are the regulation of transcription and translation to finely modulate protein levels during both biotic and abiotic stresses. Increasing evidence suggests that ribosomes are highly adaptable modular supramolecular structures which remodel to adapt to stresses. Each Arabidopsis thaliana ribosome consists of approximately 81 distinct ribosomal proteins (RPs), each of which is encoded by two to seven genes. To investigate the identity of ribosomal proteins of the small subunit (RPS) and of the large subunit (RPL) as well as ribosomes-associated proteins, we analysed by LC/MS/MS immunopurified ribosomes from A. thaliana leaves treated with isonicotinic acid (INA), an inducer of plant innate immunity. We quantified a total of 2084 proteins. 165 ribosome-associated proteins showed increased abundance while 52 were less abundant. Of the 52 identified RPS (from a possibility of 104 encoding genes), 15 were deregulated. Similarly, from the 148 possible RPL, 80 were detected and 9 were deregulated. Our results revealed potential candidates involved in innate immunity that could be interesting targets for functional genomic studies.
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Affiliation(s)
- Zainab Fakih
- Department of Chemistry, Biochemistry and Physics and Groupe de Recherche en Biologie Végétale, Université du Québec à Trois-Rivières, G9A 5H9, Trois-Rivières, Québec, Canada
| | - Mélodie B Plourde
- Department of Chemistry, Biochemistry and Physics and Groupe de Recherche en Biologie Végétale, Université du Québec à Trois-Rivières, G9A 5H9, Trois-Rivières, Québec, Canada
| | - Charlène Eugénie Tomi Nkouankou
- Department of Chemistry, Biochemistry and Physics and Groupe de Recherche en Biologie Végétale, Université du Québec à Trois-Rivières, G9A 5H9, Trois-Rivières, Québec, Canada
| | - Victor Fourcassié
- Proteomics Platform, Centre de recherche du CHU de Québec, Faculty of Medicine, Université Laval, G1V 4G2, Québec City, Québec, Canada
| | - Sylvie Bourassa
- Proteomics Platform, Centre de recherche du CHU de Québec, Faculty of Medicine, Université Laval, G1V 4G2, Québec City, Québec, Canada
| | - Arnaud Droit
- Proteomics Platform, Centre de recherche du CHU de Québec, Faculty of Medicine, Université Laval, G1V 4G2, Québec City, Québec, Canada
| | - Hugo Germain
- Department of Chemistry, Biochemistry and Physics and Groupe de Recherche en Biologie Végétale, Université du Québec à Trois-Rivières, G9A 5H9, Trois-Rivières, Québec, Canada.
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28
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Ortigosa F, Lobato-Fernández C, Pérez-Claros JA, Cantón FR, Ávila C, Cánovas FM, Cañas RA. Epitranscriptome changes triggered by ammonium nutrition regulate the proteome response of maritime pine roots. FRONTIERS IN PLANT SCIENCE 2022; 13:1102044. [PMID: 36618661 PMCID: PMC9815506 DOI: 10.3389/fpls.2022.1102044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Epitranscriptome constitutes a gene expression checkpoint in all living organisms. Nitrogen is an essential element for plant growth and development that influences gene expression at different levels such as epigenome, transcriptome, proteome, and metabolome. Therefore, our hypothesis is that changes in the epitranscriptome may regulate nitrogen metabolism. In this study, epitranscriptomic modifications caused by ammonium nutrition were monitored in maritime pine roots using Oxford Nanopore Technology. Transcriptomic responses mainly affected transcripts involved in nitrogen and carbon metabolism, defense, hormone synthesis/signaling, and translation. Global detection of epitranscriptomic marks was performed to evaluate this posttranscriptional mechanism in un/treated seedlings. Increased N6-methyladenosine (m6A) deposition in the 3'-UTR was observed in response to ammonium, which seems to be correlated with poly(A) lengths and changes in the relative abundance of the corresponding proteins. The results showed that m6A deposition and its dynamics seem to be important regulators of translation under ammonium nutrition. These findings suggest that protein translation is finely regulated through epitranscriptomic marks likely by changes in mRNA poly(A) length, transcript abundance and ribosome protein composition. An integration of multiomics data suggests that the epitranscriptome modulates responses to nutritional, developmental and environmental changes through buffering, filtering, and focusing the final products of gene expression.
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Affiliation(s)
- Francisco Ortigosa
- Grupo de Biología Molecular y Biotecnología de Plantas, Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, Málaga, Spain
| | - César Lobato-Fernández
- Grupo de Biología Molecular y Biotecnología de Plantas, Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, Málaga, Spain
| | | | | | - Concepción Ávila
- Grupo de Biología Molecular y Biotecnología de Plantas, Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, Málaga, Spain
| | - Francisco M. Cánovas
- Grupo de Biología Molecular y Biotecnología de Plantas, Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, Málaga, Spain
| | - Rafael A. Cañas
- Integrative Molecular Biology Lab, Universidad de Málaga, Málaga, Spain
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Yao Z, Yuan L, Liu K, Wang T, Liu B, Zhao Y, Gan S, Chen L. Warming-induced changes of broccoli head to cauliflower-like curd in Brassica oleracea are regulated by DNA methylation as revealed by methylome and transcriptome co-profiling. MOLECULAR HORTICULTURE 2022; 2:26. [PMID: 37789398 PMCID: PMC10515005 DOI: 10.1186/s43897-022-00047-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 10/05/2023]
Abstract
Increasingly warming temperature impacts on all aspects of growth and development in plants. Flower development is a complex process that is very sensitive to ambient temperature, and warming temperatures often lead to abnormal flower development and remarkably reduce the quality and yield of inflorescent vegetables and many other crops, which can be exemplified by Brassica oleracea cv. Green Harmony F1, a broccoli cultivar, whose floral development is ceased at inflorescence meristem (at 28 °C) or floral primordium stage (at 22 °C), forming a cauliflower-like curd (28 °C) or intermediate curd (22 °C) instead of normal broccoli head at 16 °C. However, the underlying molecular regulatory mechanisms are not well understood. Here we report that warming temperature (28 °C or 22 °C) induced hypermethylation of the genome, especially the promoter regions of such sets of genes as ribosome biogenesis-related and others, leading to the suppression of the apex-highly-expressed distinctive genes, subsequently resulting in the abnormal floral development, as revealed by methylome and transcriptome co-profiling. The regulation of warming-induced abnormal floral development in broccoli was further verified by the fact that the DNA methylation inhibitor 5-azacytidine (5-azaC) released the expression of genes from the warming temperature-induced suppression, and restored the broccoli development to normalcy at warming temperature. The research provided new approaches to breeding broccoli and other crops for growing in wider or warmer temperature zones. Graphical Abstract.
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Affiliation(s)
- Zilei Yao
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Lu Yuan
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Ke Liu
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Tingjin Wang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Bin Liu
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yan Zhao
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
- Present address: College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Susheng Gan
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA.
| | - Liping Chen
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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Valencia-Lozano E, Herrera-Isidrón L, Flores-López JA, Recoder-Meléndez OS, Barraza A, Cabrera-Ponce JL. Solanum tuberosum Microtuber Development under Darkness Unveiled through RNAseq Transcriptomic Analysis. Int J Mol Sci 2022; 23:ijms232213835. [PMID: 36430314 PMCID: PMC9696990 DOI: 10.3390/ijms232213835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 11/12/2022] Open
Abstract
Potato microtuber (MT) development through in vitro techniques are ideal propagules for producing high quality potato plants. MT formation is influenced by several factors, i.e., photoperiod, sucrose, hormones, and osmotic stress. We have previously developed a protocol of MT induction in medium with sucrose (8% w/v), gelrite (6g/L), and 2iP as cytokinin under darkness. To understand the molecular mechanisms involved, we performed a transcriptome-wide analysis. Here we show that 1715 up- and 1624 down-regulated genes were involved in this biological process. Through the protein-protein interaction (PPI) network analyses performed in the STRING database (v11.5), we found 299 genes tightly associated in 14 clusters. Two major clusters of up-regulated proteins fundamental for life growth and development were found: 29 ribosomal proteins (RPs) interacting with 6 PEBP family members and 117 cell cycle (CC) proteins. The PPI network of up-regulated transcription factors (TFs) revealed that at least six TFs-MYB43, TSF, bZIP27, bZIP43, HAT4 and WOX9-may be involved during MTs development. The PPI network of down-regulated genes revealed a cluster of 83 proteins involved in light and photosynthesis, 110 in response to hormone, 74 in hormone mediate signaling pathway and 22 related to aging.
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Affiliation(s)
- Eliana Valencia-Lozano
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Irapuato 36824, Guanajuato, Mexico
| | - Lisset Herrera-Isidrón
- Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG), Instituto Politécnico Nacional, Av. Mineral de Valenciana 200, Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
| | - Jorge Abraham Flores-López
- Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG), Instituto Politécnico Nacional, Av. Mineral de Valenciana 200, Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
| | - Osiel Salvador Recoder-Meléndez
- Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato (UPIIG), Instituto Politécnico Nacional, Av. Mineral de Valenciana 200, Puerto Interior, Silao de la Victoria 36275, Guanajuato, Mexico
| | - Aarón Barraza
- CONACYT-Centro de Investigaciones Biológicas del Noreste, SC. IPN 195, Playa Palo de Santa Rita Sur, La Paz 23096, Baja California Sur, Mexico
| | - José Luis Cabrera-Ponce
- Departamento de Ingeniería Genética, Centro de Investigación y de Estudios Avanzados del IPN, Unidad Irapuato, Irapuato 36824, Guanajuato, Mexico
- Correspondence: ; Tel.: +52-462-6239600 (ext. 9421)
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Herath V, Verchot J. Comprehensive Transcriptome Analysis Reveals Genome-Wide Changes Associated with Endoplasmic Reticulum (ER) Stress in Potato ( Solanum tuberosum L.). Int J Mol Sci 2022; 23:ijms232213795. [PMID: 36430273 PMCID: PMC9696714 DOI: 10.3390/ijms232213795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/11/2022] Open
Abstract
We treated potato (Solanum tuberosum L.) plantlets with TM and performed gene expression studies to identify genome-wide changes associated with endoplasmic reticulum (ER) stress and the unfolded protein response (UPR). An extensive network of responses was identified, including chromatin remodeling, transcriptional reprogramming, as well as changes in the structural components of the endomembrane network system. Limited genome-wide changes in alternative RNA splicing patterns of protein-coding transcripts were also discovered. Significant changes in RNA metabolism, components of the translation machinery, as well as factors involved in protein folding and maturation occurred, which included a broader set of genes than expected based on Arabidopsis research. Antioxidant defenses and oxygen metabolic enzymes are differentially regulated, which is expected of cells that may be experiencing oxidative stress or adapting to protect proteins from oxidation. Surges in protein kinase expression indicated early signal transduction events. This study shows early genomic responses including an array of differentially expressed genes that have not been reported in Arabidopsis. These data describe novel ER stress responses in a solanaceous host.
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Affiliation(s)
- Venura Herath
- Department of Agriculture Biology, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Jeanmarie Verchot
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77802, USA
- Correspondence: ; Tel.: +1-979-568-6369
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Cheng SS, Ku YS, Cheung MY, Lam HM. Identification of stably expressed reference genes for expression studies in Arabidopsis thaliana using mass spectrometry-based label-free quantification. FRONTIERS IN PLANT SCIENCE 2022; 13:1001920. [PMID: 36247637 PMCID: PMC9557097 DOI: 10.3389/fpls.2022.1001920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Arabidopsis thaliana has been used regularly as a model plant in gene expression studies on transcriptional reprogramming upon pathogen infection, such as that by Pseudomonas syringae pv. tomato DC3000 (Pst DC3000), or when subjected to stress hormone treatments including jasmonic acid (JA), salicylic acid (SA), and abscisic acid (ABA). Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) has been extensively employed to quantitate these gene expression changes. However, the accuracy of the quantitation is largely dependent on the stability of the expressions of reference genes used for normalization. Recently, RNA sequencing (RNA-seq) has been widely used to mine stably expressed genes for use as references in RT-qPCR. However, the amplification step in RNA-seq creates an intrinsic bias against those genes with relatively low expression levels, and therefore does not provide an accurate quantification of all expressed genes. In this study, we employed mass spectrometry-based label-free quantification (LFQ) in proteomic analyses to identify those proteins with abundances unaffected by Pst DC3000 infection. We verified, using RT-qPCR, that the levels of their corresponding mRNAs were also unaffected by Pst DC3000 infection. Compared to commonly used reference genes for expression studies in A. thaliana upon Pst DC3000 infection, the candidate reference genes reported in this study generally have a higher expression stability. In addition, using RT-qPCR, we verified that the mRNAs of the candidate reference genes were stably expressed upon stress hormone treatments including JA, SA, and ABA. Results indicated that the candidate genes identified here had stable expressions upon these stresses and are suitable to be used as reference genes for RT-qPCR. Among the 18 candidate reference genes reported in this study, many of them had greater expression stability than the commonly used reference genes, such as ACT7, in previous studies. Here, besides proposing more appropriate reference genes for Arabidopsis expression studies, we also demonstrated the capacity of mass spectrometry-based LFQ to quantify protein abundance and the possibility to extend protein expression studies to the transcript level.
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Karssemeijer PN, de Kreek KA, Gols R, Neequaye M, Reichelt M, Gershenzon J, van Loon JJA, Dicke M. Specialist root herbivore modulates plant transcriptome and downregulates defensive secondary metabolites in a brassicaceous plant. THE NEW PHYTOLOGIST 2022; 235:2378-2392. [PMID: 35717563 PMCID: PMC9540780 DOI: 10.1111/nph.18324] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Plants face attackers aboveground and belowground. Insect root herbivores can lead to severe crop losses, yet the underlying transcriptomic responses have rarely been studied. We studied the dynamics of the transcriptomic response of Brussels sprouts (Brassica oleracea var. gemmifera) primary roots to feeding damage by cabbage root fly larvae (Delia radicum), alone or in combination with aboveground herbivory by cabbage aphids (Brevicoryne brassicae) or diamondback moth caterpillars (Plutella xylostella). This was supplemented with analyses of phytohormones and the main classes of secondary metabolites; aromatic, indole and aliphatic glucosinolates. Root herbivory leads to major transcriptomic rearrangement that is modulated by aboveground feeding caterpillars, but not aphids, through priming soon after root feeding starts. The root herbivore downregulates aliphatic glucosinolates. Knocking out aliphatic glucosinolate biosynthesis with CRISPR-Cas9 results in enhanced performance of the specialist root herbivore, indicating that the herbivore downregulates an effective defence. This study advances our understanding of how plants cope with root herbivory and highlights several novel aspects of insect-plant interactions for future research. Further, our findings may help breeders develop a sustainable solution to a devastating root pest.
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Affiliation(s)
- Peter N. Karssemeijer
- Laboratory of EntomologyWageningen University and Research6708PBWageningenthe Netherlands
| | - Kris A. de Kreek
- Laboratory of EntomologyWageningen University and Research6708PBWageningenthe Netherlands
| | - Rieta Gols
- Laboratory of EntomologyWageningen University and Research6708PBWageningenthe Netherlands
| | - Mikhaela Neequaye
- John Innes CentreNorwich Research ParkNR4 7UHNorwichUK
- Quadram Institute BioscienceNorwich Research ParkNR4 7UQNorwichUK
| | - Michael Reichelt
- Department of BiochemistryMax‐Planck‐Institute for Chemical Ecology07745JenaGermany
| | - Jonathan Gershenzon
- Department of BiochemistryMax‐Planck‐Institute for Chemical Ecology07745JenaGermany
| | - Joop J. A. van Loon
- Laboratory of EntomologyWageningen University and Research6708PBWageningenthe Netherlands
| | - Marcel Dicke
- Laboratory of EntomologyWageningen University and Research6708PBWageningenthe Netherlands
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Engineering Ribosomes to Alleviate Abiotic Stress in Plants: A Perspective. PLANTS 2022; 11:plants11162097. [PMID: 36015400 PMCID: PMC9415564 DOI: 10.3390/plants11162097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/10/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022]
Abstract
As the centerpiece of the biomass production process, ribosome activity is highly coordinated with environmental cues. Findings revealing ribosome subgroups responsive to adverse conditions suggest this tight coordination may be grounded in the induction of variant ribosome compositions and the differential translation outcomes they might produce. In this perspective, we go through the literature linking ribosome heterogeneity to plants’ abiotic stress response. Once unraveled, this crosstalk may serve as the foundation of novel strategies to custom cultivars tolerant to challenging environments without the yield penalty.
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Bartha L, Mandáková T, Kovařík A, Bulzu PA, Rodde N, Mahelka V, Lysak MA, Fustier MA, Šafář J, Cápal P, Keresztes L, Banciu HL. Intact ribosomal DNA arrays of Potentilla origin detected in Erythronium nucleus suggest recent eudicot-to-monocot horizontal transfer. THE NEW PHYTOLOGIST 2022; 235:1246-1259. [PMID: 35460285 DOI: 10.1111/nph.18171] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
During our initial phylogenetic study of the monocot genus Erythronium (Liliaceae), we observed peculiar eudicot-type internal transcribed spacer (ITS) sequences in a dataset derived from genomic DNA of Erythronium dens-canis. This raised the possibility of horizontal transfer of a eudicot alien ribosomal DNA (rDNA) into the Erythronium genome. In this work we aimed to support this hypothesis by carrying out genomic, molecular, and cytogenetic analyses. Genome skimming coupled by PacBio HiFi sequencing of a bacterial artificial chromosome clone derived from flow-sorted nuclei was used to characterise the alien 45S rDNA. Integration of alien rDNA in the recipient genome was further proved by Southern blotting and fluorescence in situ hybridization using specific probes. Alien rDNA, nested among Potentilla species in phylogenetic analysis, likely entered the Erythronium lineage in the common ancestor of E. dens-canis and E. caucasicum. Transferred eudicot-type rDNA preserved its tandemly arrayed feature on a single chromosome and was found to be transcribed in the monocot host, albeit much less efficiently than the native counterpart. This study adds a new example to the rarely documented nuclear-to-nuclear jumps of DNA between eudicots and monocots while holding the scientific community continually in suspense about the mode of DNA transfer.
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Affiliation(s)
- László Bartha
- Molecular Biology Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeş-Bolyai University, 400271, Cluj-Napoca, Romania
| | - Terezie Mandáková
- Central European Institute of Technology (CEITEC), Masaryk University, 625 00, Brno, Czech Republic
| | - Aleš Kovařík
- Laboratory of Molecular Epigenetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, 61265, Brno, Czech Republic
| | - Paul-Adrian Bulzu
- Department of Aquatic Microbial Ecology, Institute of Hydrobiology, Biology Centre of the Academy of Sciences of the Czech Republic, 370 05, České Budějovice, Czech Republic
| | - Nathalie Rodde
- French Plant Genomic Resource Center, INRAE-CNRGV, 31320, Castanet Tolosan, France
| | - Václav Mahelka
- Institute of Botany, Czech Academy of Sciences, 25243, Průhonice, Czech Republic
| | - Martin A Lysak
- Central European Institute of Technology (CEITEC), Masaryk University, 625 00, Brno, Czech Republic
| | | | - Jan Šafář
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, 779 00, Olomouc, Czech Republic
| | - Petr Cápal
- Institute of Experimental Botany of the Czech Academy of Sciences, Centre of the Region Haná for Biotechnological and Agricultural Research, 779 00, Olomouc, Czech Republic
| | - Lujza Keresztes
- Hungarian Department of Biology and Ecology, Babeş-Bolyai University, 400006, Cluj-Napoca, Romania
- Centre of Systems Biology, Biodiversity and Bioresources (3B), Babeş-Bolyai University, 400006, Cluj-Napoca, Romania
| | - Horia L Banciu
- Molecular Biology Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeş-Bolyai University, 400271, Cluj-Napoca, Romania
- Centre of Systems Biology, Biodiversity and Bioresources (3B), Babeş-Bolyai University, 400006, Cluj-Napoca, Romania
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeş-Bolyai University, 400006, Cluj-Napoca, Romania
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Du Y, Liu L, Zhang X, Li F, Kong F, Zhang J, Li J, Peng T, Sun H, Zhao Q. Regulation of OsPIL15 on rice quality. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2022; 42:39. [PMID: 37313503 PMCID: PMC10248670 DOI: 10.1007/s11032-022-01311-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
The phytochrome-interacting factor-like gene OsPIL15 negatively regulates grain size and 1000-grain weight, but its regulatory effect on rice quality traits is unknown. Here, knock-down, knock-out, and over-expression of OsPIL15 transgenic rice lines were used to investigate the effects of OsPIL15 on rice yield and quality traits. The results showed that knock-down or knock-out of OsPIL15 increased grain length and width, chalkiness, amylose content, glutenin and globulin content, and total protein content but reduced amylopectin content, total starch content, prolamin and albumin content, and gel consistency. Over-expression of OsPIL15 showed the opposite results, except for the reduction of prolamin content. Although OsPIL15 changed the grain size and weight, it had no effect on grain length/width ratio, brown rice rate, and milled rice rate. KEGG pathway enrichment analysis of differentially expressed genes between transgenic lines and wild type showed that OsPIL15 mainly regulated genes related to ribosome, metabolic pathways, and biosynthesis of secondary metabolites. Gene expression analysis showed that RNAi transgenic lines decreased OsCIN2 and OsSUS1 expression and increased OsGBSSI, OsSSI, OsAPGL2, and OsAPGL3 expression level, while over-expression of OsPIL15 increased OsCIN2, OsSUS1, OsSUS6, and OsSSI and decreased OsSSIIa, OsSSIIc, and OsAPGL2 expression level. These results revealed that OsPIL15 plays an important role in rice grain development. In addition to grain shape, OsPIL15 also regulates chalkiness, starch content, protein content, and gel consistency. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-022-01311-x.
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Affiliation(s)
- Yanxiu Du
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Lingzhi Liu
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Xiaohua Zhang
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Fei Li
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Fanshu Kong
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Jing Zhang
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Junzhou Li
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Ting Peng
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Hongzheng Sun
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
| | - Quanzhi Zhao
- Henan Key Laboratory of Rice Biology, Collaborative Innovation Center of Henan Grain Crops, Henan Agricultural University, Zhengzhou, China
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Abstract
Tremendous progress has been made on molecular aspects of plant phosphorus (P) nutrition, often without heeding information provided by soil scientists, ecophysiologists, and crop physiologists. This review suggests ways to integrate information from different disciplines. When soil P availability is very low, P-mobilizing strategies are more effective than mycorrhizal strategies. Soil parameters largely determine how much P roots can acquire from P-impoverished soil, and kinetic properties of P transporters are less important. Changes in the expression of P transporters avoid P toxicity. Plants vary widely in photosynthetic P-use efficiency, photosynthesis per unit leaf P. The challenge is to discover what the trade-offs are of different patterns of investment in P fractions. Less investment may save P, but are costs incurred? Are these costs acceptable for crops? These questions can be resolved only by the concerted action of scientists working at both molecular and physiological levels, rather than pursuing these problems independently.
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Affiliation(s)
- Hans Lambers
- School of Biological Sciences and Institute of Agriculture, University of Western Australia, Perth, Western Australia, Australia;
- Department of Plant Nutrition, College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, Key Laboratory of Plant-Soil Interactions, Ministry of Education, China Agricultural University, Beijing, China
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38
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Darriere T, Jobet E, Zavala D, Escande ML, Durut N, de Bures A, Blanco-Herrera F, Vidal EA, Rompais M, Carapito C, Gourbiere S, Sáez-Vásquez J. Upon heat stress processing of ribosomal RNA precursors into mature rRNAs is compromised after cleavage at primary P site in Arabidopsis thaliana. RNA Biol 2022; 19:719-734. [PMID: 35522061 PMCID: PMC9090299 DOI: 10.1080/15476286.2022.2071517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Transcription and processing of 45S rRNAs in the nucleolus are keystones of ribosome biogenesis. While these processes are severely impacted by stress conditions in multiple species, primarily upon heat exposure, we lack information about the molecular mechanisms allowing sessile organisms without a temperature-control system, like plants, to cope with such circumstances. We show that heat stress disturbs nucleolar structure, inhibits pre-rRNA processing and provokes imbalanced ribosome profiles in Arabidopsis thaliana plants. Notably, the accuracy of transcription initiation and cleavage at the primary P site in the 5’ETS (5’ External Transcribed Spacer) are not affected but the levels of primary 45S and 35S transcripts are, respectively, increased and reduced. In contrast, precursors of 18S, 5.8S and 25S RNAs are rapidly undetectable upon heat stress. Remarkably, nucleolar structure, pre-rRNAs from major ITS1 processing pathway and ribosome profiles are restored after returning to optimal conditions, shedding light on the extreme plasticity of nucleolar functions in plant cells. Further genetic and molecular analysis to identify molecular clues implicated in these nucleolar responses indicate that cleavage rate at P site and nucleolin protein expression can act as a checkpoint control towards a productive pre-rRNA processing pathway.
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Affiliation(s)
- T Darriere
- CNRS, Laboratoire Génome et D#x0E9;veloppement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France.,Univ. Perpignan Via Domitia, LGDP, UMR 5096, Perpignan, France
| | - E Jobet
- CNRS, Laboratoire Génome et D#x0E9;veloppement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France.,Univ. Perpignan Via Domitia, LGDP, UMR 5096, Perpignan, France
| | - D Zavala
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - M L Escande
- CNRS, Observatoire Océanologique de Banyuls s/ mer, Banyuls-sur-mer, France.,BioPIC Platform of the OOB, Banyuls-sur-mer, France
| | - N Durut
- CNRS, Laboratoire Génome et D#x0E9;veloppement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France.,Univ. Perpignan Via Domitia, LGDP, UMR 5096, Perpignan, France
| | - A de Bures
- CNRS, Laboratoire Génome et D#x0E9;veloppement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France.,Univ. Perpignan Via Domitia, LGDP, UMR 5096, Perpignan, France
| | - F Blanco-Herrera
- Centro de Biotecnología Vegetal, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile.,Millennium Institute for Integrative Biology (IBio), Santiago, Chile
| | - E A Vidal
- Millennium Institute for Integrative Biology (IBio), Santiago, Chile.,Bioinformática, Facultad de Ciencias, Universidad MayorCentro de Genómica y , Santiago, Chile
| | - M Rompais
- Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, UMR7178 CNRS/Université de Strasbourg, Strasbourg, France
| | - C Carapito
- Laboratoire de Spectrométrie de Masse BioOrganique, Institut Pluridisciplinaire Hubert Curien, UMR7178 CNRS/Université de Strasbourg, Strasbourg, France
| | - S Gourbiere
- CNRS, Laboratoire Génome et D#x0E9;veloppement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France.,Univ. Perpignan Via Domitia, LGDP, UMR 5096, Perpignan, France
| | - J Sáez-Vásquez
- CNRS, Laboratoire Génome et D#x0E9;veloppement des Plantes (LGDP), UMR 5096, 66860 Perpignan, France.,Univ. Perpignan Via Domitia, LGDP, UMR 5096, Perpignan, France
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39
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Qureshi MK, Gawroński P, Munir S, Jindal S, Kerchev P. Hydrogen peroxide-induced stress acclimation in plants. Cell Mol Life Sci 2022; 79:129. [PMID: 35141765 PMCID: PMC11073338 DOI: 10.1007/s00018-022-04156-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023]
Abstract
Among all reactive oxygen species (ROS), hydrogen peroxide (H2O2) takes a central role in regulating plant development and responses to the environment. The diverse role of H2O2 is achieved through its compartmentalized synthesis, temporal control exerted by the antioxidant machinery, and ability to oxidize specific residues of target proteins. Here, we examine the role of H2O2 in stress acclimation beyond the well-studied transcriptional reprogramming, modulation of plant hormonal networks and long-distance signalling waves by highlighting its global impact on the transcriptional regulation and translational machinery.
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Affiliation(s)
- Muhammad Kamran Qureshi
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Bosan road, Multan, 60800, Pakistan
| | - Piotr Gawroński
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw, University of Life Sciences, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Sana Munir
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Bosan road, Multan, 60800, Pakistan
| | - Sunita Jindal
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic
| | - Pavel Kerchev
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic.
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40
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Shrestha V, Yobi A, Slaten ML, Chan YO, Holden S, Gyawali A, Flint-Garcia S, Lipka AE, Angelovici R. Multiomics approach reveals a role of translational machinery in shaping maize kernel amino acid composition. PLANT PHYSIOLOGY 2022; 188:111-133. [PMID: 34618082 PMCID: PMC8774818 DOI: 10.1093/plphys/kiab390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Maize (Zea mays) seeds are a good source of protein, despite being deficient in several essential amino acids. However, eliminating the highly abundant but poorly balanced seed storage proteins has revealed that the regulation of seed amino acids is complex and does not rely on only a handful of proteins. In this study, we used two complementary omics-based approaches to shed light on the genes and biological processes that underlie the regulation of seed amino acid composition. We first conducted a genome-wide association study to identify candidate genes involved in the natural variation of seed protein-bound amino acids. We then used weighted gene correlation network analysis to associate protein expression with seed amino acid composition dynamics during kernel development and maturation. We found that almost half of the proteome was significantly reduced during kernel development and maturation, including several translational machinery components such as ribosomal proteins, which strongly suggests translational reprogramming. The reduction was significantly associated with a decrease in several amino acids, including lysine and methionine, pointing to their role in shaping the seed amino acid composition. When we compared the candidate gene lists generated from both approaches, we found a nonrandom overlap of 80 genes. A functional analysis of these genes showed a tight interconnected cluster dominated by translational machinery genes, especially ribosomal proteins, further supporting the role of translation dynamics in shaping seed amino acid composition. These findings strongly suggest that seed biofortification strategies that target the translation machinery dynamics should be considered and explored further.
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Affiliation(s)
- Vivek Shrestha
- Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211, USA
| | - Abou Yobi
- Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211, USA
| | - Marianne L Slaten
- Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211, USA
| | - Yen On Chan
- Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211, USA
| | - Samuel Holden
- Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211, USA
| | - Abiskar Gyawali
- Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211, USA
| | - Sherry Flint-Garcia
- U.S. Department of Agriculture-Agricultural Research Service, Columbia, Missouri 65211, USA
| | - Alexander E Lipka
- Department of Crop Sciences, University of Illinois, Urbana, Illinois 61801, USA
| | - Ruthie Angelovici
- Division of Biological Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, Missouri 65211, USA
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41
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Kakui H, Tsuchimatsu T, Yamazaki M, Hatakeyama M, Shimizu KK. Pollen Number and Ribosome Gene Expression Altered in a Genome-Editing Mutant of REDUCED POLLEN NUMBER1 Gene. FRONTIERS IN PLANT SCIENCE 2022; 12:768584. [PMID: 35087546 PMCID: PMC8787260 DOI: 10.3389/fpls.2021.768584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
The number of pollen grains varies within and between species. However, little is known about the molecular basis of this quantitative trait, in contrast with the many studies available on cell differentiation in the stamen. Recently, the first gene responsible for pollen number variation, REDUCED POLLEN NUMBER1 (RDP1), was isolated by genome-wide association studies of Arabidopsis thaliana and exhibited the signature of natural selection. This gene encodes a homolog of yeast Mrt4 (mRNA turnover4), which is an assembly factor of the large ribosomal subunit. However, no further data were available to link ribosome function to pollen development. Here, we characterized the RDP1 gene using the standard A. thaliana accession Col-0. The frameshift mutant, rdp1-3 generated by CRISPR/Cas9 revealed the pleiotropic effect of RDP1 in flowering, thus demonstrating that this gene is required for a broad range of processes other than pollen development. We found that the natural Col-0 allele conferred a reduced pollen number against the Bor-4 allele, as assessed using the quantitative complementation test, which is more sensitive than transgenic experiments. Together with a historical recombination event in Col-0, which was identified by sequence alignment, these results suggest that the coding sequence of RDP1 is the candidate region responsible for the natural phenotypic variation. To elucidate the biological processes in which RDP1 is involved, we conducted a transcriptome analysis. We found that genes responsible for ribosomal large subunit assembly/biogenesis were enriched among the differentially regulated genes, which supported the hypothesis that ribosome biogenesis is disturbed in the rdp1-3 mutant. Among the pollen-development genes, three key genes encoding basic helix-loop-helix (bHLH) transcription factors (ABORTED MICROSPORES (AMS), bHLH010, and bHLH089), as well as direct downstream genes of AMS, were downregulated in the rdp1-3 mutant. In summary, our results suggest a specialized function of ribosomes in pollen development through RDP1, which harbors natural variants under selection.
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Affiliation(s)
- Hiroyuki Kakui
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Takashi Tsuchimatsu
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Department of Plant and Microbial Biology & Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
- Gregor Mendel Institute, Austrian Academy of Sciences, Vienna BioCenter, Vienna, Austria
- Department of Biology, Chiba University, Chiba, Japan
- Department of Biological Sciences, University of Tokyo, Tokyo, Japan
| | - Misako Yamazaki
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Masaomi Hatakeyama
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Functional Genomics Center Zurich, Zurich, Switzerland
| | - Kentaro K. Shimizu
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Japan
- Department of Plant and Microbial Biology & Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland
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42
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Appels R, Wang P, Islam S. Integrating Wheat Nucleolus Structure and Function: Variation in the Wheat Ribosomal RNA and Protein Genes. FRONTIERS IN PLANT SCIENCE 2021; 12:686586. [PMID: 35003148 PMCID: PMC8739226 DOI: 10.3389/fpls.2021.686586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
We review the coordinated production and integration of the RNA (ribosomal RNA, rRNA) and protein (ribosomal protein, RP) components of wheat cytoplasmic ribosomes in response to changes in genetic constitution, biotic and abiotic stresses. The components examined are highly conserved and identified with reference to model systems such as human, Arabidopsis, and rice, but have sufficient levels of differences in their DNA and amino acid sequences to form fingerprints or gene haplotypes that provide new markers to associate with phenotype variation. Specifically, it is argued that populations of ribosomes within a cell can comprise distinct complements of rRNA and RPs to form units with unique functionalities. The unique functionalities of ribosome populations within a cell can become central in situations of stress where they may preferentially translate mRNAs coding for proteins better suited to contributing to survival of the cell. In model systems where this concept has been developed, the engagement of initiation factors and elongation factors to account for variation in the translation machinery of the cell in response to stresses provided the precedents. The polyploid nature of wheat adds extra variation at each step of the synthesis and assembly of the rRNAs and RPs which can, as a result, potentially enhance its response to changing environments and disease threats.
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Affiliation(s)
- Rudi Appels
- AgriBio, Centre for AgriBioscience, La Trobe University, Bundoora, VIC, Australia
- Faculty of Veterinary and Agricultural Science, Melbourne, VIC, Australia
| | - Penghao Wang
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, Australia
| | - Shahidul Islam
- Centre for Crop Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, Australia
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Martinez-Seidel F, Hsieh YC, Walther D, Kopka J, Pereira Firmino AA. [Formula: see text]: ComplexOme-Structural Network Interpreter used to study spatial enrichment in metazoan ribosomes. BMC Bioinformatics 2021; 22:605. [PMID: 34930116 PMCID: PMC8686616 DOI: 10.1186/s12859-021-04510-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 12/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Upon environmental stimuli, ribosomes are surmised to undergo compositional rearrangements due to abundance changes among proteins assembled into the complex, leading to modulated structural and functional characteristics. Here, we present the ComplexOme-Structural Network Interpreter ([Formula: see text]), a computational method to allow testing whether ribosomal proteins (rProteins) that exhibit abundance changes under specific conditions are spatially confined to particular regions within the large ribosomal complex. RESULTS [Formula: see text] translates experimentally determined structures into graphs, with nodes representing proteins and edges the spatial proximity between them. In its first implementation, [Formula: see text] considers rProteins and ignores rRNA and other objects. Spatial regions are defined using a random walk with restart methodology, followed by a procedure to obtain a minimum set of regions that cover all proteins in the complex. Structural coherence is achieved by applying weights to the edges reflecting the physical proximity between purportedly contacting proteins. The weighting probabilistically guides the random-walk path trajectory. Parameter tuning during region selection provides the option to tailor the method to specific biological questions by yielding regions of different sizes with minimum overlaps. In addition, other graph community detection algorithms may be used for the [Formula: see text] workflow, considering that they yield different sized, non-overlapping regions. All tested algorithms result in the same node kernels under equivalent regions. Based on the defined regions, available abundance change information of proteins is mapped onto the graph and subsequently tested for enrichment in any of the defined spatial regions. We applied [Formula: see text] to the cytosolic ribosome structures of Saccharomyces cerevisiae, Oryctolagus cuniculus, and Triticum aestivum using datasets with available quantitative protein abundance change information. We found that in yeast, substoichiometric rProteins depleted from translating polysomes are significantly constrained to a ribosomal region close to the tRNA entry and exit sites. CONCLUSIONS [Formula: see text] offers a computational method to partition multi-protein complexes into structural regions and a statistical approach to test for spatial enrichments of any given subsets of proteins. [Formula: see text] is applicable to any multi-protein complex given appropriate structural and abundance-change data. [Formula: see text] is publicly available as a GitHub repository https://github.com/MSeidelFed/COSNet_i and can be installed using the python installer pip.
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Affiliation(s)
- Federico Martinez-Seidel
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
- School of BioSciences, University of Melbourne, Parkville, VC 3010 Australia
| | - Yin-Chen Hsieh
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
- Institute for Arctic and Marine Biology, UiT Arctic University of Norway, 9037 Tromsø, Norway
| | - Dirk Walther
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Joachim Kopka
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
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Liu HM, Long CR, Wang SH, Fu XM, Zhou XY, Mao JM, Yang HX, Du YX, Li JX, Yue JQ, Hu FG. Transcriptome and Metabolome Comparison of Smooth and Rough Citrus limon L. Peels Grown on Same Trees and Harvested in Different Seasons. FRONTIERS IN PLANT SCIENCE 2021; 12:749803. [PMID: 34691126 PMCID: PMC8531254 DOI: 10.3389/fpls.2021.749803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/06/2021] [Indexed: 06/01/2023]
Abstract
Background: Farmers harvest two batches fruits of Lemons (Citrus limon L. Burm. f.) i.e., spring flowering fruit and autumn flowering fruit in dry-hot valley in Yunnan, China. Regular lemons harvested in autumn have smooth skin. However, lemons harvested in spring have rough skin, which makes them less attractive to customers. Furthermore, the rough skin causes a reduction in commodity value and economical losses to farmers. This is a preliminary study that investigates the key transcriptomic and metabolomic differences in peels of lemon fruits (variety Yuning no. 1) harvested 30, 60, 90, 120, and 150 days after flowering from the same trees in different seasons. Results: We identified 5,792, 4,001, 3,148, and 5,287 differentially expressed genes (DEGs) between smooth peel (C) and rough peel (D) 60, 90, 120, and 150 days after flowering, respectively. A total of 1,193 metabolites differentially accumulated (DAM) between D and C. The DEGs and DAMs were enriched in the mitogen-activated protein kinase (MAPK) and plant hormone signaling, terpenoid biosynthesis, flavonoid, and phenylalanine biosynthesis, and ribosome pathways. Predominantly, in the early stages, phytohormonal regulation and signaling were the main driving force for changes in peel surface. Changes in the expression of genes associated with asymmetric cell division were also an important observation. The biosynthesis of terpenoids was possibly reduced in rough peels, while the exclusive expression of cell wall synthesis-related genes could be a possible reason for the thick peel of the rough-skinned lemons. Additionally, cell division, cell number, hypocotyl growth, accumulation of fatty acids, lignans and coumarins- related gene expression, and metabolite accumulation changes were major observations. Conclusion: The rough peels fruit (autumn flowering fruit) and smooth peels fruit (spring flowering fruit) matured on the same trees are possibly due to the differential regulation of asymmetric cell division, cell number regulation, and randomization of hypocotyl growth related genes and the accumulation of terpenoids, flavonoids, fatty acids, lignans, and coumarins. The preliminary results of this study are important for increasing the understanding of peel roughness in lemon and other citrus species.
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Castellano MM, Merchante C. Peculiarities of the regulation of translation initiation in plants. CURRENT OPINION IN PLANT BIOLOGY 2021; 63:102073. [PMID: 34186463 DOI: 10.1016/j.pbi.2021.102073] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/21/2021] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
Protein synthesis is a fundamental process for life and, as such, plays a crucial role in the adaptation to energy, developmentaland environmental conditions. For these reasons, and despite the general conservation of the eukaryotic translational machinery, it is not surprising that organisms with different lifestyles have evolved distinct mechanisms of regulation to adapt translation initiation to their intrinsic growth and development. Plants have clear peculiarities compared with other eukaryotes that have also extended to translation control. This review describes the plant-specific mechanisms for regulation of translation initiation, with a focus on those that modulate the eIF4F complexes, central translational regulatory hubs in all eukaryotes, and highlights the latest discoveries on the signaling pathways that regulate their constituents and activity.
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Affiliation(s)
- M Mar Castellano
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA, CSIC), Campus Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain.
| | - Catharina Merchante
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Campus de Teatinos, Universidad de Málaga, Málaga, 29071, Spain.
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46
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Norris K, Hopes T, Aspden JL. Ribosome heterogeneity and specialization in development. WILEY INTERDISCIPLINARY REVIEWS. RNA 2021; 12:e1644. [PMID: 33565275 PMCID: PMC8647923 DOI: 10.1002/wrna.1644] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 12/13/2022]
Abstract
Regulation of protein synthesis is a vital step in controlling gene expression, especially during development. Over the last 10 years, it has become clear that rather than being homogeneous machines responsible for mRNA translation, ribosomes are highly heterogeneous and can play an active part in translational regulation. These "specialized ribosomes" comprise of specific protein and/or rRNA components, which are required for the translation of particular mRNAs. However, while there is extensive evidence for ribosome heterogeneity, support for specialized functions is limited. Recent work in a variety of developmental model organisms has shed some light on the biological relevance of ribosome heterogeneity. Tissue-specific expression of ribosomal components along with phenotypic analysis of ribosomal gene mutations indicate that ribosome heterogeneity and potentially specialization are common in key development processes like embryogenesis, spermatogenesis, oogenesis, body patterning, and neurogenesis. Several examples of ribosome specialization have now been proposed but strong links between ribosome heterogeneity, translation of specific mRNAs by defined mechanisms, and role of these translation events remain elusive. Furthermore, several studies have indicated that heterogeneous ribosome populations are a product of tissue-specific expression rather than specialized function and that ribosomal protein phenotypes are the result of extra-ribosomal function or overall reduced ribosome levels. Many important questions still need to be addressed in order to determine the functional importance of ribosome heterogeneity to development and disease, which is likely to vary across systems. It will be essential to dissect these issues to fully understand diseases caused by disruptions to ribosomal composition, such as ribosomopathies. This article is categorized under: Translation > Translation Regulation Translation > Ribosome Structure/Function RNA in Disease and Development > RNA in Development.
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Affiliation(s)
- Karl Norris
- Faculty of Biological Sciences, School of Molecular and Cellular BiologyUniversity of LeedsLeedsUK
- Leeds OmicsUniversity of LeedsLeedsUK
| | - Tayah Hopes
- Faculty of Biological Sciences, School of Molecular and Cellular BiologyUniversity of LeedsLeedsUK
- Leeds OmicsUniversity of LeedsLeedsUK
| | - Julie Louise Aspden
- Faculty of Biological Sciences, School of Molecular and Cellular BiologyUniversity of LeedsLeedsUK
- Leeds OmicsUniversity of LeedsLeedsUK
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47
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Martinez-Seidel F, Beine-Golovchuk O, Hsieh YC, Eshraky KE, Gorka M, Cheong BE, Jimenez-Posada EV, Walther D, Skirycz A, Roessner U, Kopka J, Pereira Firmino AA. Spatially Enriched Paralog Rearrangements Argue Functionally Diverse Ribosomes Arise during Cold Acclimation in Arabidopsis. Int J Mol Sci 2021; 22:6160. [PMID: 34200446 PMCID: PMC8201131 DOI: 10.3390/ijms22116160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/23/2021] [Accepted: 06/01/2021] [Indexed: 12/15/2022] Open
Abstract
Ribosome biogenesis is essential for plants to successfully acclimate to low temperature. Without dedicated steps supervising the 60S large subunits (LSUs) maturation in the cytosol, e.g., Rei-like (REIL) factors, plants fail to accumulate dry weight and fail to grow at suboptimal low temperatures. Around REIL, the final 60S cytosolic maturation steps include proofreading and assembly of functional ribosomal centers such as the polypeptide exit tunnel and the P-Stalk, respectively. In consequence, these ribosomal substructures and their assembly, especially during low temperatures, might be changed and provoke the need for dedicated quality controls. To test this, we blocked ribosome maturation during cold acclimation using two independent reil double mutant genotypes and tested changes in their ribosomal proteomes. Additionally, we normalized our mutant datasets using as a blank the cold responsiveness of a wild-type Arabidopsis genotype. This allowed us to neglect any reil-specific effects that may happen due to the presence or absence of the factor during LSU cytosolic maturation, thus allowing us to test for cold-induced changes that happen in the early nucleolar biogenesis. As a result, we report that cold acclimation triggers a reprogramming in the structural ribosomal proteome. The reprogramming alters the abundance of specific RP families and/or paralogs in non-translational LSU and translational polysome fractions, a phenomenon known as substoichiometry. Next, we tested whether the cold-substoichiometry was spatially confined to specific regions of the complex. In terms of RP proteoforms, we report that remodeling of ribosomes after a cold stimulus is significantly constrained to the polypeptide exit tunnel (PET), i.e., REIL factor binding and functional site. In terms of RP transcripts, cold acclimation induces changes in RP families or paralogs that are significantly constrained to the P-Stalk and the ribosomal head. The three modulated substructures represent possible targets of mechanisms that may constrain translation by controlled ribosome heterogeneity. We propose that non-random ribosome heterogeneity controlled by specialized biogenesis mechanisms may contribute to a preferential or ultimately even rigorous selection of transcripts needed for rapid proteome shifts and successful acclimation.
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Affiliation(s)
- Federico Martinez-Seidel
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
- School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia;
| | - Olga Beine-Golovchuk
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
- Heidelberg University, Biochemie-Zentrum, Nuclear Pore Complex and Ribosome Assembly, 69120 Heidelberg, Germany
| | - Yin-Chen Hsieh
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
- Institute for Arctic and Marine Biology, UiT Arctic University of Norway, 9037 Tromsø, Norway
| | - Kheloud El Eshraky
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
| | - Michal Gorka
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
| | - Bo-Eng Cheong
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
- School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia;
- Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Malaysia
| | - Erika V. Jimenez-Posada
- Grupo de Biotecnología-Productos Naturales, Universidad Tecnológica de Pereira, Pereira 660003, Colombia;
- Emerging Infectious Diseases and Tropical Medicine Research Group—Sci-Help, Pereira 660009, Colombia
| | - Dirk Walther
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
| | - Aleksandra Skirycz
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
| | - Ute Roessner
- School of BioSciences, University of Melbourne, Parkville, VIC 3010, Australia;
| | - Joachim Kopka
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
| | - Alexandre Augusto Pereira Firmino
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany; (O.B.-G.); (Y.-C.H.); (K.E.E.); (M.G.); (B.-E.C.); (D.W.); (A.S.); (J.K.); (A.A.P.F.)
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Xiong W, Zhang J, Lan T, Kong W, Wang X, Liu L, Chen X, Mo B. High resolution RNA-seq profiling of genes encoding ribosomal proteins across different organs and developmental stages in Arabidopsis thaliana. PLANT DIRECT 2021; 5:e00320. [PMID: 34095740 PMCID: PMC8156134 DOI: 10.1002/pld3.320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 05/12/2023]
Abstract
In Arabidopsis thaliana, each ribosomal protein (RP) is encoded by a small gene family consisting of two or more highly homologous paralogues, which results in ribosome heterogeneity. It is largely unknown that how genes from multiple member containing RP families are regulated at transcriptional level to accommodate the needs of different plant organs and developmental stages. In this study, we investigated the transcript accumulation profiles of RP genes and found that the expression levels of RP genes are varied dramatically in different organs and developmental stages. Although most RP genes are found to be ubiquitously transcribed, some are obviously transcribed with spatiotemporal specificity. The hierarchical clustering trees of transcript accumulation intensity of RP genes revealed that different organs and developmental stages have different population of RP gene transcripts. By interrogating of the expression fluctuation trend of RP genes, we found that in spite of the fact that most groups of paralogous RP genes are transcribed in concerted manners, some RPs gene have contrasting expression patterns. When transcripts of paralogous RP genes from the same family are considered together, the expression level of most RP genes are well-matched but some are obviously higher or lower, therefore we speculate that some superfluous RPs may act outside the ribosome and a portion of ribosomes may lack one or even more RP(s). Altogether, our analysis results suggested that functional divergence may exist among heterogeneous ribosomes that resulted from different combination of RP paralogues, and substoichiometry of several RP gene families may lead to another layer of heterogeneous ribosomes which also have divergent functions in plants.
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Affiliation(s)
- Wei Xiong
- Guangdong Provincial Key Laboratory for Plant EpigeneticsLonghua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenChina
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhenChina
| | - Jiancong Zhang
- Guangdong Provincial Key Laboratory for Plant EpigeneticsLonghua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenChina
| | - Ting Lan
- Guangdong Provincial Key Laboratory for Plant EpigeneticsLonghua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenChina
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhenChina
| | - Wenwen Kong
- Guangdong Provincial Key Laboratory for Plant EpigeneticsLonghua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenChina
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Optoelectronic EngineeringShenzhen UniversityShenzhenChina
| | - Xiaoyan Wang
- Guangdong Provincial Key Laboratory for Plant EpigeneticsLonghua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenChina
| | - Lin Liu
- Guangdong Provincial Key Laboratory for Plant EpigeneticsLonghua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenChina
| | - Xuemei Chen
- Department of Botany and Plant SciencesInstitute of Integrative Genome BiologyUniversity of CaliforniaRiversideCAUSA
| | - Beixin Mo
- Guangdong Provincial Key Laboratory for Plant EpigeneticsLonghua Bioindustry and Innovation Research InstituteCollege of Life Sciences and OceanographyShenzhen UniversityShenzhenChina
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Martinez-Seidel F, Suwanchaikasem P, Nie S, Leeming MG, Pereira Firmino AA, Williamson NA, Kopka J, Roessner U, Boughton BA. Membrane-Enriched Proteomics Link Ribosome Accumulation and Proteome Reprogramming With Cold Acclimation in Barley Root Meristems. FRONTIERS IN PLANT SCIENCE 2021; 12:656683. [PMID: 33995454 PMCID: PMC8121087 DOI: 10.3389/fpls.2021.656683] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/22/2021] [Indexed: 05/17/2023]
Abstract
Due to their sessile nature, plants rely on root systems to mediate many biotic and abiotic cues. To overcome these challenges, the root proteome is shaped to specific responses. Proteome-wide reprogramming events are magnified in meristems due to their active protein production. Using meristems as a test system, here, we study the major rewiring that plants undergo during cold acclimation. We performed tandem mass tag-based bottom-up quantitative proteomics of two consecutive segments of barley seminal root apexes subjected to suboptimal temperatures. After comparing changes in total and ribosomal protein (RP) fraction-enriched contents with shifts in individual protein abundances, we report ribosome accumulation accompanied by an intricate translational reprogramming in the distal apex zone. Reprogramming ranges from increases in ribosome biogenesis to protein folding factors and suggests roles for cold-specific RP paralogs. Ribosome biogenesis is the largest cellular investment; thus, the vast accumulation of ribosomes and specific translation-related proteins during cold acclimation could imply a divergent ribosomal population that would lead to a proteome shift across the root. Consequently, beyond the translational reprogramming, we report a proteome rewiring. First, triggered protein accumulation includes spliceosome activity in the root tip and a ubiquitous upregulation of glutathione production and S-glutathionylation (S-GSH) assemblage machineries in both root zones. Second, triggered protein depletion includes intrinsically enriched proteins in the tip-adjacent zone, which comprise the plant immune system. In summary, ribosome and translation-related protein accumulation happens concomitantly to a proteome reprogramming in barley root meristems during cold acclimation. The cold-accumulated proteome is functionally implicated in feedbacking transcript to protein translation at both ends and could guide cold acclimation.
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Affiliation(s)
- Federico Martinez-Seidel
- School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | | | - Shuai Nie
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC, Australia
| | - Michael G. Leeming
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC, Australia
- School of Chemistry, The University of Melbourne, Parkville, VIC, Australia
| | | | - Nicholas A. Williamson
- Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, VIC, Australia
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Parkville, VIC, Australia
| | - Joachim Kopka
- Willmitzer Department, Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Ute Roessner
- School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
| | - Berin A. Boughton
- School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
- Australian National Phenome Centre, Murdoch University, Murdoch, WA, Australia
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50
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Moin M, Saha A, Bakshi A, Madhav MS, Kirti PB. Constitutive expression of Ribosomal Protein L6 modulates salt tolerance in rice transgenic plants. Gene 2021; 789:145670. [PMID: 33892070 DOI: 10.1016/j.gene.2021.145670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/14/2021] [Accepted: 04/15/2021] [Indexed: 12/17/2022]
Abstract
We have functionally characterized the RPL6, a Ribosomal Protein Large subunit gene for salt stress tolerance in rice. The overexpression of RPL6 resulted in tolerance to moderate (150 mM) to high (200 mM) levels of salt (NaCl). The transgenic rice plants expressing RPL6 constitutively showed better phenotypic and physiological responses with high quantum efficiency, accumulation of higher chlorophyll and proline contents, and an overall increase in seed yield compared with the wild type in salt stress treatments. An iTRAQ-based comparative proteomic analysis revealed the high expression of about 333 proteins among the 4378 DAPs in a selected overexpression line of RPL6 treated with 200 mM of NaCl. The functional analysis showed that these highly accumulated proteins (HAPs) are involved in photosynthesis, ribosome and chloroplast biogenesis, ion transportation, transcription and translation regulation, phytohormone and secondary metabolite signal transduction. An in silico network analysis of HAPs predicted that RPL6 binds with translation-related proteins and helicases, which coordinately affect the activities of a comprehensive signaling network, thereby inducing tolerance and promoting growth and productivity in response to salt stress. Our overall findings identified a novel candidate, RPL6, whose characterization contributed to the existing knowledge on the complexity of salt tolerance mechanism in plants.
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Affiliation(s)
- Mazahar Moin
- Biotechnology Division, ICAR-Indian Institute of Rice Research (IIRR), Hyderabad 500030, India.
| | - Anusree Saha
- Department of Plant Sciences, University of Hyderabad, Hyderabad 500046, India
| | - Achala Bakshi
- Biotechnology Division, ICAR-Indian Institute of Rice Research (IIRR), Hyderabad 500030, India
| | - M S Madhav
- Biotechnology Division, ICAR-Indian Institute of Rice Research (IIRR), Hyderabad 500030, India
| | - P B Kirti
- Department of Plant Sciences, University of Hyderabad, Hyderabad 500046, India; Agri-Biotech Foundation, PJTS Agricultural University, Hyderabad 500030, India
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