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Sheng H, Bouwmeester HJ, Munnik T. Phosphate promotes Arabidopsis root skewing and circumnutation through reorganisation of the microtubule cytoskeleton. THE NEW PHYTOLOGIST 2024. [PMID: 39360424 DOI: 10.1111/nph.20152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Accepted: 09/05/2024] [Indexed: 10/04/2024]
Abstract
Phosphate (Pi) plays a key role in plant growth and development. Hence, plants display a range of adaptations to acquire it, including changes in root system architecture (RSA). Whether Pi triggers directional root growth is unknown. We investigated whether Arabidopsis roots sense Pi and grow towards it, that is whether they exhibit phosphotropism. While roots did exhibit a clear Pi-specific directional growth response, it was, however, always to the left, independent of the direction of the Pi gradient. We discovered that increasing concentrations of KH2PO4, trigger a dose-dependent skewing response, in both primary and lateral roots. This phenomenon is Pi-specific - other nutrients do not trigger this - and involves the reorganisation of the microtubule cytoskeleton in epidermal cells of the root elongation zone. Higher Pi levels promote left-handed cell file rotation that results in right-handed, clockwise, root growth and leftward skewing as a result of the helical movement of roots (circumnutation). Our results shed new light on the role of Pi in root growth, and may provide novel insights for crop breeding to optimise RSA and P-use efficiency.
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Affiliation(s)
- Hui Sheng
- Plant Cell Biology, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
| | - Harro J Bouwmeester
- Plant Hormone Biology Group, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
| | - Teun Munnik
- Plant Cell Biology, Green Life Sciences Cluster, Swammerdam Institute for Life Sciences, University of Amsterdam, Science Park 904, Amsterdam, 1098 XH, the Netherlands
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Wang Y, Ma S, Cao X, Li Z, Pan B, Song Y, Wang Q, Shen H, Sun L. Morphological, histological and transcriptomic mechanisms underlying different fruit shapes in Capsicum spp. PeerJ 2024; 12:e17909. [PMID: 39364369 PMCID: PMC11448748 DOI: 10.7717/peerj.17909] [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: 05/17/2023] [Accepted: 07/22/2024] [Indexed: 10/05/2024] Open
Abstract
Pepper (Capsicum spp.) has a long domestication history and has accumulated diverse fruit shape variations. The illustration of the mechanisms underlying different fruit shape is not only important for clarifying the regulation of pepper fruit development but also critical for fully understanding the plant organ morphogenesis. Thus, in this study, morphological, histological and transcriptional investigations have been performed on pepper accessions bearing fruits with five types of shapes. From the results it can be presumed that pepper fruit shape was determined during the developmental processes before and after anthesis, and the anthesis was a critical developmental stage for fruit shape determination. Ovary shape index variations of the studied accessions were mainly due to cell number alterations, while, fruit shape index variations were mainly attributed to the cell division and cell expansion variations. As to the ovary wall thickness and pericarp thickness, they were regulated by both cell division in the abaxial-adaxial direction and cell expansion in the proximal-distal and medio-lateral directions. Transcriptional analysis discovered that the OFP-TRM and IQD-CaM pathways may be involved in the regulation of the slender fruit shape and the largest ovary wall cell number in the blocky-shaped accession can be attributed to the higher expression of CYP735A1, which may lead to an increased cytokinin level. Genes related to development, cell proliferation/division, cytoskeleton, and cell wall may also contribute to the regulation of helical growth in pepper. The insights gained from this study are valuable for further investigations into pepper fruit shape development.
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Affiliation(s)
- Yixin Wang
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Shijie Ma
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Xiaomeng Cao
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Zixiong Li
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Bingqing Pan
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Yingying Song
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Qian Wang
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Huolin Shen
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
| | - Liang Sun
- College of Horticulture, China Agricultural University, Beijing, China
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, Department of Vegetable Science, College of Horticulture, China Agricultural University, Beijing, China
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Yu Q, Du H, Huang Y, Lei X, Wu X, Jiang J, Huang W, Ge L. KINASE-INDUCIBLE DOMAIN INTERACTING 8 regulates helical pod morphology in Medicago truncatula. PLANT PHYSIOLOGY 2024; 195:2016-2031. [PMID: 38502062 DOI: 10.1093/plphys/kiae170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 01/30/2024] [Accepted: 02/12/2024] [Indexed: 03/20/2024]
Abstract
Leguminosae exhibits a wide diversity of legume forms with varying degrees of spiral morphologies, serving as an ideal clade for studying the growth and development of spiral organs. While soybean (Glycine max) develops straight pods, the pod of the model legume Medicago truncatula is a helix structure. Despite the fascinating structures and intensive description of the pods in legumes, little is known regarding the genetic mechanism underlying the highly varied spirality of the legume pods. In this study, we found that KINASE-INDUCIBLE DOMAIN INTERACTING 8 (MtKIX8) plays a key role in regulating the pod structure and spirality in M. truncatula. Unlike the coiled and barrel-shaped helix pods of the wild type, the pods of the mtkix8 mutant are loose and deformed and lose the topologic structure as observed in the wild-type pods. In the pods of the mtkix8 mutant, the cells proliferate more actively and overly expand, particularly in the ventral suture, resulting in uncoordinated growth along the dorsal and ventral sutures of pods. The core cell cycle genes CYCLIN D3s are upregulated in the mtkix8 pods, leading to the prolonged growth of the ventral suture region of the pods. Our study revealed the key role of MtKIX8 in regulating seed pod development in M. truncatula and demonstrates a genetic regulatory model underlying the establishment of the helical pod in legumes.
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Affiliation(s)
- Qianxia Yu
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Crop Genetic Improvement, South China Peanut Sub-Center of National Center of Oilseed Crops Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Huan Du
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Yuanyuan Huang
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xiao Lei
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xueting Wu
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Jiayu Jiang
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Wei Huang
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Liangfa Ge
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
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4
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Luo Z, Gao M, Zhao X, Wang L, Liu Z, Wang L, Wang L, Zhao J, Wang J, Liu M. Anatomical observation and transcriptome analysis of branch-twisted mutations in Chinese jujube. BMC Genomics 2023; 24:500. [PMID: 37644409 PMCID: PMC10466873 DOI: 10.1186/s12864-023-09572-2] [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: 02/03/2023] [Accepted: 08/09/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Plant organs grow in a certain direction and organ twisted growth, a rare and distinctive trait, is associated with internal structure changes and special genes. The twisted branch mutant of Chinese jujube jujube, an important fruit tree native to China and introduced to nearly 50 countries, provides new typical materials for exploration of plant twisted growth. RESULTS In this study, the cytological characteristics and related genes of twisted branches in Chinese jujube were revealed by microscopy observation and transcriptome analysis. The unique coexistence of primary and secondary structures appeared in the twisted parts of branches, and special structures such as collateral bundle, cortical bundles, and internal phloem were formed. Ninety differentially expressed genes of 'Dongzao' and its twisted mutant were observed, in which ZjTBL43, ZjFLA11, ZjFLA12 and ZjIQD1 were selected as candidate genes. ZjTBL43 was homologous to AtTBL43 in Arabidopsis, which was involved in the synthesis and deposition of cellular secondary wall cellulose. The attbl43 mutant showed significant inflorescence stem bending growth. The transgenic lines of attbl43 with overexpression of ZjTBL43 were phenotypically normal.The branch twisted growth may be caused by mutations in ZjTBL43 in Chinese jujube. AtIQD10, AtFLA11 and AtFLA12 were homologous to ZjIQD1, ZjFLA11 and ZjFLA12, respectively. However, the phenotype of their function defect mutants was normal. CONCLUSION In summary, these findings will provide new insights into the plant organ twisted growth and a reference for investigation of controlling mechanisms of plant growth direction.
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Affiliation(s)
- Zhi Luo
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
- Research Center of Chinese Jujube, College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
| | - Mengjiao Gao
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
- Research Center of Chinese Jujube, College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
| | - Xuan Zhao
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
- Research Center of Chinese Jujube, College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
| | - Lihu Wang
- School of Landscape and Ecological Engineering, Hebei University of Engineering, Handan, 056038, China
| | - Zhiguo Liu
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
- Research Center of Chinese Jujube, College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
| | - Lixin Wang
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
- Research Center of Chinese Jujube, College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
| | - Lili Wang
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
- Research Center of Chinese Jujube, College of Horticulture, Hebei Agricultural University, Baoding, 071001, China
| | - Jin Zhao
- College of Life Science, Hebei Agricultural University, Baoding, 071001, China.
| | - Jiurui Wang
- College of Forestry, Hebei Agricultural University, Baoding, 071001, China.
| | - Mengjun Liu
- College of Horticulture, Hebei Agricultural University, Baoding, 071001, China.
- Research Center of Chinese Jujube, College of Horticulture, Hebei Agricultural University, Baoding, 071001, China.
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Yu Q, Liu J, Jiang J, Liu F, Zhang Z, Yu X, Li M, Alam I, Ge L. Genome-Wide Identification, Characterization, and Expression Analysis of SPIRAL1 Family Genes in Legume Species. Int J Mol Sci 2023; 24:ijms24043958. [PMID: 36835373 PMCID: PMC9959322 DOI: 10.3390/ijms24043958] [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: 01/14/2023] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
The SPIRAL1 (SPR1) gene family encodes microtubule-associated proteins that are essential for the anisotropic growth of plant cells and abiotic stress resistance. Currently, little is known about the characteristics and roles of the gene family outside of Arabidopsis thaliana. This study intended to investigate the SPR1 gene family in legumes. In contrast to that of A. thaliana, the gene family has undergone shrinking in the model legume species Medicago truncatula and Glycine max. While the orthologues of SPR1 were lost, very few SPR1-Like (SP1L) genes were identified given the genome size of the two species. Specifically, the M. truncatula and G. max genomes only harbor two MtSP1L and eight GmSP1L genes, respectively. Multiple sequence alignment showed that all these members contain conserved N- and C-terminal regions. Phylogenetic analysis clustered the legume SP1L proteins into three clades. The SP1L genes showed similar exon-intron organizations and similar architectures in their conserved motifs. Many essential cis-elements are present in the promoter regions of the MtSP1L and GmSP1L genes associated with growth and development, plant hormones, light, and stress. The expression analysis revealed that clade 1 and clade 2 SP1L genes have relatively high expression in all tested tissues in Medicago and soybean, suggesting their function in plant growth and development. MtSP1L-2, as well as clade 1 and clade 2 GmSP1L genes, display a light-dependent expression pattern. The SP1L genes in clade 2 (MtSP1L-2, GmSP1L-3, and GmSP1L-4) were significantly induced by sodium chloride treatment, suggesting a potential role in the salt-stress response. Our research provides essential information for the functional studies of SP1L genes in legume species in the future.
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Affiliation(s)
- Qianxia Yu
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Junjie Liu
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Jiayu Jiang
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Fudong Liu
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Zhen Zhang
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoye Yu
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Mengru Li
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Intikhab Alam
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (I.A.); (L.G.)
| | - Liangfa Ge
- Department of Grassland Science, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Subcenter of the National Center for Soybean Improvement, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- Correspondence: (I.A.); (L.G.)
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6
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Mills AM, Rasmussen CG. Defects in division plane positioning in the root meristematic zone affect cell organization in the differentiation zone. J Cell Sci 2022; 135:jcs260127. [PMID: 36074053 PMCID: PMC9658997 DOI: 10.1242/jcs.260127] [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: 04/19/2022] [Accepted: 09/01/2022] [Indexed: 11/20/2022] Open
Abstract
Cell-division-plane orientation is critical for plant and animal development and growth. TANGLED1 (TAN1) and AUXIN-INDUCED IN ROOT CULTURES 9 (AIR9) are division-site-localized microtubule-binding proteins required for division-plane positioning. The single mutants tan1 and air9 of Arabidopsis thaliana have minor or no noticeable phenotypes, but the tan1 air9 double mutant has synthetic phenotypes including stunted growth, misoriented divisions and aberrant cell-file rotation in the root differentiation zone. These data suggest that TAN1 plays a role in non-dividing cells. To determine whether TAN1 is required in elongating and differentiating cells in the tan1 air9 double mutant, we limited its expression to actively dividing cells using the G2/M-specific promoter of the syntaxin KNOLLE (pKN:TAN1-YFP). Unexpectedly, in addition to rescuing division-plane defects, expression of pKN:TAN1-YFP rescued root growth and cell file rotation defects in the root-differentiation zone in tan1 air9 double mutants. This suggests that defects that occur in the meristematic zone later affect the organization of elongating and differentiating cells.
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Affiliation(s)
| | - Carolyn G. Rasmussen
- Graduate Group in Biochemistry and Molecular Biology
- Department of Botany and Plant Sciences, Center for Plant Cell Biology, Institute of Integrative Genome Biology, University of California, Riverside, CA 92521, USA
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7
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Zhou K. The regulation of the cell wall by glycosylphosphatidylinositol-anchored proteins in Arabidopsis. Front Cell Dev Biol 2022; 10:904714. [PMID: 36036018 PMCID: PMC9412048 DOI: 10.3389/fcell.2022.904714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 07/04/2022] [Indexed: 12/04/2022] Open
Abstract
A polysaccharides-based cell wall covers the plant cell, shaping it and protecting it from the harsh environment. Cellulose microfibrils constitute the cell wall backbone and are embedded in a matrix of pectic and hemicellulosic polysaccharides and glycoproteins. Various environmental and developmental cues can regulate the plant cell wall, and diverse glycosylphosphatidylinositol (GPI)-anchored proteins participate in these regulations. GPI is a common lipid modification on eukaryotic proteins, which covalently tethers the proteins to the membrane lipid bilayer. Catalyzed by a series of enzymic complexes, protein precursors are post-translationally modified at their hydrophobic carboxyl-terminus in the endomembrane system and anchored to the lipid bilayer through an oligosaccharidic GPI modification. Ultimately, mature proteins reach the plasma membrane via the secretory pathway facing toward the apoplast and cell wall in plants. In Arabidopsis, more than three hundred GPI-anchored proteins (GPI-APs) have been predicted, and many are reported to be involved in diverse regulations of the cell wall. In this review, we summarize GPI-APs involved in cell wall regulation. GPI-APs are proposed to act as structural components of the cell wall, organize cellulose microfibrils at the cell surface, and during cell wall integrity signaling transduction. Besides regulating protein trafficking, the GPI modification is potentially governed by a GPI shedding system that cleaves and releases the GPI-anchored proteins from the plasma membrane into the cell wall.
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8
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Shi P, Gielis J, Quinn BK, Niklas KJ, Ratkowsky DA, Schrader J, Ruan H, Wang L, Niinemets Ü. 'biogeom': An R package for simulating and fitting natural shapes. Ann N Y Acad Sci 2022; 1516:123-134. [PMID: 35879250 DOI: 10.1111/nyas.14862] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Many natural objects exhibit radial or axial symmetry in a single plane. However, a universal tool for simulating and fitting the shapes of such objects is lacking. Herein, we present an R package called 'biogeom' that simulates and fits many shapes found in nature. The package incorporates novel universal parametric equations that generate the profiles of bird eggs, flowers, linear and lanceolate leaves, seeds, starfish, and tree-rings, and three growth-rate equations that generate the profiles of ovate leaves and the ontogenetic growth curves of animals and plants. 'biogeom' includes several empirical datasets comprising the boundary coordinates of bird eggs, fruits, lanceolate and ovate leaves, tree rings, seeds, and sea stars. The package can also be applied to other kinds of natural shapes similar to those in the datasets. In addition, the package includes sigmoid curves derived from the three growth-rate equations, which can be used to model animal and plant growth trajectories and predict the times associated with maximum growth rate. 'biogeom' can quantify the intra- or interspecific similarity of natural outlines, and it provides quantitative information of shape and ontogenetic modification of shape with important ecological and evolutionary implications for the growth and form of the living world.
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Affiliation(s)
- Peijian Shi
- Co-Innovation Centre for Sustainable Forestry in Southern China, Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Johan Gielis
- Department of Biosciences Engineering, University of Antwerp, Antwerp, Belgium
| | - Brady K Quinn
- St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, New Brunswick, Canada
| | - Karl J Niklas
- School of Integrative Plant Science, Cornell University, Ithaca, New York, USA
| | - David A Ratkowsky
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, Tasmania, Australia
| | - Julian Schrader
- School of Natural Sciences, Macquarie University, Sydney, New South Wales, Australia.,Biodiversity, Macroecology & Biogeography, University of Göttingen, Göttingen, Germany
| | - Honghua Ruan
- Co-Innovation Centre for Sustainable Forestry in Southern China, Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Lin Wang
- Co-Innovation Centre for Sustainable Forestry in Southern China, Bamboo Research Institute, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Ülo Niinemets
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia.,Estonian Academy of Sciences, Tallinn, Estonia
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9
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Sang Y, Liu M. Hierarchical self-assembly into chiral nanostructures. Chem Sci 2022; 13:633-656. [PMID: 35173928 PMCID: PMC8769063 DOI: 10.1039/d1sc03561d] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/09/2021] [Indexed: 12/11/2022] Open
Abstract
One basic principle regulating self-assembly is associated with the asymmetry of constituent building blocks or packing models. Using asymmetry to manipulate molecular-level devices and hierarchical functional materials is a promising topic in materials sciences and supramolecular chemistry. Here, exemplified by recent major achievements in chiral hierarchical self-assembly, we show how chirality may be utilized in the design, construction and evolution of highly ordered and complex chiral nanostructures. We focus on how unique functions can be developed by the exploitation of chiral nanostructures instead of single basic units. Our perspective on the future prospects of chiral nanostructures via the hierarchical self-assembly strategy is also discussed.
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Affiliation(s)
- Yutao Sang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
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10
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Otsuka Y, Tsukaya H. Three-dimensional quantification of twisting in the Arabidopsis petiole. JOURNAL OF PLANT RESEARCH 2021; 134:811-819. [PMID: 33839995 PMCID: PMC8245369 DOI: 10.1007/s10265-021-01291-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Organisms have a variety of three-dimensional (3D) structures that change over time. These changes include twisting, which is 3D deformation that cannot happen in two dimensions. Twisting is linked to important adaptive functions of organs, such as adjusting the orientation of leaves and flowers in plants to align with environmental stimuli (e.g. light, gravity). Despite its importance, the underlying mechanism for twisting remains to be determined, partly because there is no rigorous method for quantifying the twisting of plant organs. Conventional studies have relied on approximate measurements of the twisting angle in 2D, with arbitrary choices of observation angle. Here, we present the first rigorous quantification of the 3D twisting angles of Arabidopsis petioles based on light sheet microscopy. Mathematical separation of bending and twisting with strict definition of petiole cross-sections were implemented; differences in the spatial distribution of bending and twisting were detected via the quantification of angles along the petiole. Based on the measured values, we discuss that minute degrees of differential growth can result in pronounced twisting in petioles.
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Affiliation(s)
- Yuta Otsuka
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hirokazu Tsukaya
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
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11
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Chakraborty J, Luo J, Dyson RJ. Lockhart with a twist: Modelling cellulose microfibril deposition and reorientation reveals twisting plant cell growth mechanisms. J Theor Biol 2021; 525:110736. [PMID: 33915144 DOI: 10.1016/j.jtbi.2021.110736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 11/26/2020] [Accepted: 04/16/2021] [Indexed: 10/21/2022]
Abstract
Plant morphology emerges from cellular growth and structure. The turgor-driven diffuse growth of a cell can be highly anisotropic: significant longitudinally and negligible radially. Such anisotropy is ensured by cellulose microfibrils (CMF) reinforcing the cell wall in the hoop direction. To maintain the cell's integrity during growth, new wall material including CMF must be continually deposited. We develop a mathematical model representing the cell as a cylindrical pressure vessel and the cell wall as a fibre-reinforced viscous sheet, explicitly including the mechano-sensitive angle of CMF deposition. The model incorporates interactions between turgor, external forces, CMF reorientation during wall extension, and matrix stiffening. Using the model, we reinterpret some recent experimental findings, and reexamine the popular hypothesis of CMF/microtubule alignment. We explore how the handedness of twisting cell growth depends on external torque and intrinsic wall properties, and find that cells twist left-handedly 'by default' in some suitable sense. Overall, this study provides a unified mechanical framework for understanding left- and right-handed twist-growth as seen in many plants.
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Affiliation(s)
- Jeevanjyoti Chakraborty
- School of Mathematics, University of Birmingham, Birmingham B15 2TT, UK; Mechanical Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
| | - Jingxi Luo
- School of Mathematics, University of Birmingham, Birmingham B15 2TT, UK.
| | - Rosemary J Dyson
- School of Mathematics, University of Birmingham, Birmingham B15 2TT, UK.
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Tojo H, Nakamura A, Ferjani A, Kazama Y, Abe T, Iida H. A Method Enabling Comprehensive Isolation of Arabidopsis Mutants Exhibiting Unusual Root Mechanical Behavior. FRONTIERS IN PLANT SCIENCE 2021; 12:646404. [PMID: 33747026 PMCID: PMC7966703 DOI: 10.3389/fpls.2021.646404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Root penetration into soils is fundamental for land plants to support their own aboveground parts and forage water and nutrients. To elucidate the molecular mechanisms underlying root mechanical penetration, mutants defective in this behavior need to be comprehensively isolated; however, established methods are currently scarce. We herein report a method to screen for these mutants of Arabidopsis thaliana and present their phenotypes. We isolated five mutants using this method, tentatively named creep1 to creep5, the primary roots of which crept over the surface of horizontal hard medium that hampered penetration by the primary root of the wild type, thereby forcing it to spring up on the surface and die. By examining root skewing, which is induced by a touch stimulation that is generated as the primary roots grow along a vertical impenetrable surface, the five creep mutants were subdivided into three groups, namely mutants with the primary root skewing leftward, those skewing rightward, and that growing dispersedly. While the majority of wild type primary roots skewed slightly leftward, nearly half of the primary roots of creep1 and creep5 skewed rightward as viewed from above. The primary roots of creep4 displayed scattered growth, while those of creep2 and creep3 showed a similar phenotype to the wild type primary roots. These results demonstrate the potential of the method developed herein to isolate various mutants that will be useful for investigating root mechanical behavior regulation not only in Arabidopsis, but also in major crops with economical value.
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Affiliation(s)
- Hiroshi Tojo
- Department of Biology, Tokyo Gakugei University, Koganei, Japan
| | - Aki Nakamura
- Department of Biology, Tokyo Gakugei University, Koganei, Japan
| | - Ali Ferjani
- Department of Biology, Tokyo Gakugei University, Koganei, Japan
| | - Yusuke Kazama
- Nishina Center for Accelerator-Based Science, RIKEN, Saitama, Japan
| | - Tomoko Abe
- Nishina Center for Accelerator-Based Science, RIKEN, Saitama, Japan
| | - Hidetoshi Iida
- Department of Biology, Tokyo Gakugei University, Koganei, Japan
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13
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Sousa-Baena MS, Hernandes-Lopes J, Van Sluys MA. Reaching the top through a tortuous path: helical growth in climbing plants. CURRENT OPINION IN PLANT BIOLOGY 2021; 59:101982. [PMID: 33395610 DOI: 10.1016/j.pbi.2020.101982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 11/19/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Climbing plants have voluble organs, for example, tendrils and modified stems, which twine up neighboring plants to reach the canopy. These organs perform exaggerated circumnutation, during which they grow towards the shaded areas of the forest (skototropism) to find a host. In response to mechanical stimulus, they grow towards the support (thigmotropism), tailoring their development to firmly attach to it (thigmomorphogenesis). The underlying molecular pathways of these crucial mechanisms are virtually unknown. Here, we review current progress on molecular regulation of the development and growth of climber's voluble organs. Recent advances in the subject point epigenetics and sensory biology as the emerging frontiers in the study of climbing plant's growth and functioning. We briefly review new developments on the molecular basis of plants' mechanosensory system, discussing the findings in the context of the climbing habit.
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Affiliation(s)
- Mariane S Sousa-Baena
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo (USP), Rua do Matão 277, 05508-090 São Paulo, SP, Brazil.
| | - José Hernandes-Lopes
- Genomics for Climate Change Research Center, Universidade Estadual de Campinas (UNICAMP), 13083-875, Campinas, SP, Brazil; Embrapa Informática Agropecuária, 13083-886, Campinas, SP, Brazil
| | - Marie-Anne Van Sluys
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo (USP), Rua do Matão 277, 05508-090 São Paulo, SP, Brazil
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Verdeguer M, Sánchez-Moreiras AM, Araniti F. Phytotoxic Effects and Mechanism of Action of Essential Oils and Terpenoids. PLANTS 2020; 9:plants9111571. [PMID: 33202993 PMCID: PMC7697004 DOI: 10.3390/plants9111571] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023]
Abstract
Weeds are one of the major constraints in crop production affecting both yield and quality. The excessive and exclusive use of synthetic herbicides for their management is increasing the development of herbicide-resistant weeds and is provoking risks for the environment and human health. Therefore, the development of new herbicides with multitarget-site activity, new modes of action and low impact on the environment and health are badly needed. The study of plant–plant interactions through the release of secondary metabolites could be a starting point for the identification of new molecules with herbicidal activity. Essential oils (EOs) and their components, mainly terpenoids, as pure natural compounds or in mixtures, because of their structural diversity and strong phytotoxic activity, could be good candidates for the development of new bioherbicides or could serve as a basis for the development of new natural-like low impact synthetic herbicides. EOs and terpenoids have been largely studied for their phytotoxicity and several evidences on their modes of action have been highlighted in the last decades through the use of integrated approaches. The review is focused on the knowledge concerning the phytotoxicity of these molecules, their putative target, as well as their potential mode of action.
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Affiliation(s)
- Mercedes Verdeguer
- Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain;
| | - Adela M. Sánchez-Moreiras
- Department of Plant Biology and Soil Science, Faculty of Biology, Universidade de Vigo, Campus Lagoas-Marcosende s/n, 36310 Vigo, Spain
- CITACA, Agri-Food Research and Transfer Cluster, Campus da Auga, University of Vigo, 32004 Ourense, Spain
- Correspondence:
| | - Fabrizio Araniti
- Department AGRARIA, University Mediterranea of Reggio Calabria, Loc. Feo di Vito, 89100 Reggio Calabria, Italy;
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Matthus E, Doddrell NH, Guillaume G, Mohammad-Sidik AB, Wilkins KA, Swarbreck SM, Davies JM. Phosphate Deprivation Can Impair Mechano-Stimulated Cytosolic Free Calcium Elevation in Arabidopsis Roots. PLANTS 2020; 9:plants9091205. [PMID: 32942534 PMCID: PMC7570281 DOI: 10.3390/plants9091205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/08/2020] [Accepted: 09/11/2020] [Indexed: 12/28/2022]
Abstract
The root tip responds to mechanical stimulation with a transient increase in cytosolic free calcium as a possible second messenger. Although the root tip will grow through a heterogeneous soil nutrient supply, little is known of the consequence of nutrient deprivation for such signalling. Here, the effect of inorganic phosphate deprivation on the root’s mechano-stimulated cytosolic free calcium increase is investigated. Arabidopsisthaliana (cytosolically expressing aequorin as a bioluminescent free calcium reporter) is grown in zero or full phosphate conditions, then roots or root tips are mechanically stimulated. Plants also are grown vertically on a solid medium so their root skewing angle (deviation from vertical) can be determined as an output of mechanical stimulation. Phosphate starvation results in significantly impaired cytosolic free calcium elevation in both root tips and whole excised roots. Phosphate-starved roots sustain a significantly lower root skewing angle than phosphate-replete roots. These results suggest that phosphate starvation causes a dampening of the root mechano-signalling system that could have consequences for growth in hardened, compacted soils.
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Affiliation(s)
- Elsa Matthus
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (E.M.); (N.H.D.); (G.G.); (A.B.M.-S.); (K.A.W.); (S.M.S.)
| | - Nicholas H. Doddrell
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (E.M.); (N.H.D.); (G.G.); (A.B.M.-S.); (K.A.W.); (S.M.S.)
- NIAB EMR, New Road, East Malling ME19 6BJ, UK
| | - Gaëtan Guillaume
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (E.M.); (N.H.D.); (G.G.); (A.B.M.-S.); (K.A.W.); (S.M.S.)
| | - Amirah B. Mohammad-Sidik
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (E.M.); (N.H.D.); (G.G.); (A.B.M.-S.); (K.A.W.); (S.M.S.)
| | - Katie A. Wilkins
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (E.M.); (N.H.D.); (G.G.); (A.B.M.-S.); (K.A.W.); (S.M.S.)
| | - Stéphanie M. Swarbreck
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (E.M.); (N.H.D.); (G.G.); (A.B.M.-S.); (K.A.W.); (S.M.S.)
- The John Bingham Laboratory, NIAB, 93 Lawrence Weaver Road, Cambridge CB3 0LE, UK
| | - Julia M. Davies
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (E.M.); (N.H.D.); (G.G.); (A.B.M.-S.); (K.A.W.); (S.M.S.)
- Correspondence:
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16
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Yu X, Qin Q, Wu X, Li D, Yang S. Genetic localization of the SPC gene controlling pod coiling direction in Medicago truncatula. Genes Genomics 2020; 42:735-742. [PMID: 32449065 DOI: 10.1007/s13258-020-00947-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/12/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Handedness in plants introduced by helical growth of organs is frequently observed, and it has fascinated plant scientists for decades. However, the genetic control of natural handedness has not been revealed. In the model legume Medicago truncatula, pods can be coiled in a clockwise or anti-clockwise manner, providing a model for genetic analysis of plant handedness. OBJECTIVE We aimed to localize the Sense of Pod Coiling (SPC) gene controlling pod coiling direction in M. truncatula. METHODS Linkage analysis was used with a biparental population for fine mapping of the SPC gene. The genome sequence of M. truncatula Mt4.0 was used for marker identification and physical mapping. Single nucleotide polymorphisms (SNPs) between the parental lines were converted to CAPS (cleaved amplified polymorphic sequences) markers. Genetic map was constructed using the software JoinMap version 3.0. Gene predication and annotation provided by the M. truncatula genome database (http://www.medicagogenome.org) was confirmed with the programs of FGENESH and Pfam 32.0, respectively. Quantitative reverse transcription PCR (qRT-PCR) was used to analyze the relative expression levels of candidate genes. RESULTS The genetic analysis indicated that the anti-clockwise coiling is dominant to clockwise and is controlled by the single gene, SPC. The SPC gene was delimited to a 250 kb-region on Chromosome 7. Total of 15 protein-coding genes were identified in the SPC locus through gene annotation and sequence analysis. Of those, two genes, potentially encoding a receptor-like kinase and a vacuolar cation/proton exchanger respectively, were selected as candidates for the SPC gene. CONCLUSIONS The result presented here lay a foundation for gene cloning of SPC, which will help us to understand the molecular mechanisms underlying helical growth in plant organs.
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Affiliation(s)
- Xiaocheng Yu
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, USA
| | - Qiulin Qin
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, USA
| | - Xia Wu
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, USA
| | - Dandan Li
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, USA.,Department of Plant Pathology, North Dakoda State University, Fargo, ND, 58102, USA
| | - Shengming Yang
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, 40546, USA. .,Edward T. Schafer Agriculture Research Center, USDA-ARS Cereals Research Unit, Fargo, ND, 58102, USA.
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Rox Middleton. THE NEW PHYTOLOGIST 2020; 225:51-52. [PMID: 31788822 DOI: 10.1111/nph.16263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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