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Dixon RA, Dickinson AJ. A century of studying plant secondary metabolism-From "what?" to "where, how, and why?". PLANT PHYSIOLOGY 2024; 195:48-66. [PMID: 38163637 PMCID: PMC11060662 DOI: 10.1093/plphys/kiad596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/15/2023] [Indexed: 01/03/2024]
Abstract
Over the past century, early advances in understanding the identity of the chemicals that collectively form a living plant have led scientists to deeper investigations exploring where these molecules localize, how they are made, and why they are synthesized in the first place. Many small molecules are specific to the plant kingdom and have been termed plant secondary metabolites, despite the fact that they can play primary and essential roles in plant structure, development, and response to the environment. The past 100 yr have witnessed elucidation of the structure, function, localization, and biosynthesis of selected plant secondary metabolites. Nevertheless, many mysteries remain about the vast diversity of chemicals produced by plants and their roles in plant biology. From early work characterizing unpurified plant extracts, to modern integration of 'omics technology to discover genes in metabolite biosynthesis and perception, research in plant (bio)chemistry has produced knowledge with substantial benefits for society, including human medicine and agricultural biotechnology. Here, we review the history of this work and offer suggestions for future areas of exploration. We also highlight some of the recently developed technologies that are leading to ongoing research advances.
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Affiliation(s)
- Richard A Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA
| | - Alexandra Jazz Dickinson
- Department of Cell and Developmental Biology, University of California at San Diego, La Jolla, CA 92093, USA
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2
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McQuinn RP, Waters MT. Apocarotenoid signals in plant development and beyond. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:1131-1133. [PMID: 38345556 DOI: 10.1093/jxb/erae024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/15/2024]
Affiliation(s)
- Ryan P McQuinn
- School of Science, Western Sydney University, Penrith, NSW 2750, Australia
| | - Mark T Waters
- School of Molecular Sciences, University of Western Australia, Perth 6009, Australia
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3
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Dong CS, Zhang WL, Wang XY, Wang X, Wang J, Wang M, Fang Y, Liu L. Crystallographic and functional studies of a plant temperature-induced lipocalin. Biochim Biophys Acta Gen Subj 2024; 1868:130540. [PMID: 38103756 DOI: 10.1016/j.bbagen.2023.130540] [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: 10/16/2023] [Revised: 11/30/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Arabidopsis thaliana temperature-induced lipocalin (AtTIL) is a prototypical member of plant lipocalins and participates in a variety of cellular processes, particularly stress responses. Bioinformatical and physiological studies have proposed its promiscuous ligand-binding ability, but the molecular basis is yet unclear. Here, we report the 1.9-Å crystal structure of AtTIL in complex with heme. Spectrophotometric absorbance titration with heme yields a dissociation constant of ∼2 micromolar, indicating the relatively weak interaction between AtTIL and heme, which is confirmed by the AtTIL-heme structure. Although binding to retinal or biliverdin is not detected, such possibility can not be precluded as suggested by comparison with other lipocalin structures. These results show that AtTIL is a structural and functional homolog of the bacterial lipocalin Blc.
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Affiliation(s)
- Chen-Song Dong
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Wei-Lun Zhang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Xiao-Ying Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Xiao Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Jia Wang
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China
| | - Mingzhu Wang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Ying Fang
- National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Lin Liu
- School of Life Sciences, Anhui University, Hefei, Anhui 230601, China.
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4
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Ji L, Zhang Z, Liu S, Zhao L, Li Q, Xiao B, Suzuki N, Burks DJ, Azad RK, Xie G. The OsTIL1 lipocalin protects cell membranes from reactive oxygen species damage and maintains the 18:3-containing glycerolipid biosynthesis under cold stress in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:72-91. [PMID: 37753661 DOI: 10.1111/tpj.16470] [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: 02/09/2023] [Revised: 08/24/2023] [Accepted: 09/01/2023] [Indexed: 09/28/2023]
Abstract
Lipocalins constitute a conserved protein family that binds to and transports a variety of lipids while fatty acid desaturases (FADs) are required for maintaining the cell membrane fluidity under cold stress. Nevertheless, it remains unclear whether plant lipocalins promote FADs for the cell membrane integrity under cold stress. Here, we identified the role of OsTIL1 lipocalin in FADs-mediated glycerolipid remodeling under cold stress. Overexpression and CRISPR/Cas9 mediated gene edition experiments demonstrated that OsTIL1 positively regulated cold stress tolerance by protecting the cell membrane integrity from reactive oxygen species damage and enhancing the activities of peroxidase and ascorbate peroxidase, which was confirmed by combined cold stress with a membrane rigidifier dimethyl sulfoxide or a H2 O2 scavenger dimethyl thiourea. OsTIL1 overexpression induced higher 18:3 content, and higher 18:3/18:2 and (18:2 + 18:3)/18:1 ratios than the wild type under cold stress whereas the gene edition mutant showed the opposite. Furthermore, the lipidomic analysis showed that OsTIL1 overexpression led to higher contents of 18:3-mediated glycerolipids, including galactolipids (monoglactosyldiacylglycerol and digalactosyldiacylglycerol) and phospholipids (phosphatidyl glycerol, phosphatidyl choline, phosphatidyl ethanolamine, phosphatidyl serine and phosphatidyl inositol) under cold stress. RNA-seq and enzyme linked immunosorbent assay analyses indicated that OsTIL1 overexpression enhanced the transcription and enzyme abundance of four ω-3 FADs (OsFAD3-1/3-2, 7, and 8) under cold stress. These results reveal an important role of OsTIL1 in maintaining the cell membrane integrity from oxidative damage under cold stress, providing a good candidate gene for improving cold tolerance in rice.
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Affiliation(s)
- Lingxiao Ji
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhengfeng Zhang
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, 430079, China
| | - Shuang Liu
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Liyan Zhao
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qiang Li
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Benze Xiao
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Nobuhiro Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo, Japan
| | - David J Burks
- Department of Biological Sciences and BioDiscovery Institute, University of North Texas, Denton, Texas, 76203, USA
- Department of Mathematics, University of North Texas, Denton, Texas, 76203, USA
| | - Rajeev K Azad
- Department of Biological Sciences and BioDiscovery Institute, University of North Texas, Denton, Texas, 76203, USA
- Department of Mathematics, University of North Texas, Denton, Texas, 76203, USA
| | - Guosheng Xie
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
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5
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Reyes-Hernández BJ, Maizel A. Tunable recurrent priming of lateral roots in Arabidopsis: More than just a clock? CURRENT OPINION IN PLANT BIOLOGY 2023; 76:102479. [PMID: 37857036 DOI: 10.1016/j.pbi.2023.102479] [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: 07/07/2023] [Revised: 09/16/2023] [Accepted: 09/24/2023] [Indexed: 10/21/2023]
Abstract
Lateral root (LR) formation in Arabidopsis is a continuous, repetitive, post-embryonic process regulated by a series of coordinated events and tuned by the environment. It shapes the root system, enabling plants to efficiently explore soil resources and adapt to changing environmental conditions. Although the auxin-regulated modules responsible for LR morphogenesis and emergence are well documented, less is known about the initial priming. Priming is characterised by recurring peaks of auxin signalling, which, once memorised, earmark cells to form the new LR. We review the recent experimental and modelling approaches to understand the molecular processes underlying the recurring LR formation. We argue that the intermittent priming of LR results from interweaving the pattern of auxin flow and root growth together with an oscillatory auxin-modulated transcriptional mechanism and illustrate its long-range sugar-mediated tuning by light.
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Affiliation(s)
| | - Alexis Maizel
- Center for Organismal Studies (COS), University of Heidelberg, Im Neuenheimer Feld 230, 69120 Heidelberg, Germany.
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Braat J, Jaonina M, David P, Leschevin M, Légeret B, D’Alessandro S, Beisson F, Havaux M. The response of Arabidopsis to the apocarotenoid β-cyclocitric acid reveals a role for SIAMESE-RELATED 5 in root development and drought tolerance. PNAS NEXUS 2023; 2:pgad353. [PMID: 37954155 PMCID: PMC10638494 DOI: 10.1093/pnasnexus/pgad353] [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: 06/13/2023] [Accepted: 10/17/2023] [Indexed: 11/14/2023]
Abstract
New regulatory functions in plant development and environmental stress responses have recently emerged for a number of apocarotenoids produced by enzymatic or nonenzymatic oxidation of carotenoids. β-Cyclocitric acid (β-CCA) is one such compound derived from β-carotene, which triggers defense mechanisms leading to a marked enhancement of plant tolerance to drought stress. We show here that this response is associated with an inhibition of root growth affecting both root cell elongation and division. Remarkably, β-CCA selectively induced cell cycle inhibitors of the SIAMESE-RELATED (SMR) family, especially SMR5, in root tip cells. Overexpression of the SMR5 gene in Arabidopsis induced molecular and physiological changes that mimicked in large part the effects of β-CCA. In particular, the SMR5 overexpressors exhibited an inhibition of root development and a marked increase in drought tolerance which is not related to stomatal closure. SMR5 up-regulation induced changes in gene expression that strongly overlapped with the β-CCA-induced transcriptomic changes. Both β-CCA and SMR5 led to a down-regulation of many cell cycle activators (cyclins, cyclin-dependent kinases) and a concomitant up-regulation of genes related to water deprivation, cellular detoxification, and biosynthesis of lipid biopolymers such as suberin and lignin. This was correlated with an accumulation of suberin lipid polyesters in the roots and a decrease in nonstomatal leaf transpiration. Taken together, our results identify the β-CCA-inducible and drought-inducible SMR5 gene as a key component of a stress-signaling pathway that reorients root metabolism from growth to multiple defense mechanisms leading to drought tolerance.
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Affiliation(s)
- Jeanne Braat
- Aix Marseille University, CEA, CNRS UMR 7265, Bioscience and Biotechnology Institute of Aix Marseille, CEA/Cadarache, Saint-Paul-lez-Durance 13115, France
| | - Meryl Jaonina
- Aix Marseille University, CEA, CNRS UMR 7265, Bioscience and Biotechnology Institute of Aix Marseille, CEA/Cadarache, Saint-Paul-lez-Durance 13115, France
| | - Pascale David
- Aix Marseille University, CEA, CNRS UMR 7265, Bioscience and Biotechnology Institute of Aix Marseille, CEA/Cadarache, Saint-Paul-lez-Durance 13115, France
| | - Maïté Leschevin
- Aix Marseille University, CEA, CNRS UMR 7265, Bioscience and Biotechnology Institute of Aix Marseille, CEA/Cadarache, Saint-Paul-lez-Durance 13115, France
| | - Bertrand Légeret
- Aix Marseille University, CEA, CNRS UMR 7265, Bioscience and Biotechnology Institute of Aix Marseille, CEA/Cadarache, Saint-Paul-lez-Durance 13115, France
| | - Stefano D’Alessandro
- Universita di Torino, Scienze Della Vita e Biologia dei Sistemi, Torino 10123, Italy
| | - Frédéric Beisson
- Aix Marseille University, CEA, CNRS UMR 7265, Bioscience and Biotechnology Institute of Aix Marseille, CEA/Cadarache, Saint-Paul-lez-Durance 13115, France
| | - Michel Havaux
- Aix Marseille University, CEA, CNRS UMR 7265, Bioscience and Biotechnology Institute of Aix Marseille, CEA/Cadarache, Saint-Paul-lez-Durance 13115, France
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Pexová Kalinová J, Tříska J, Hořejší K. Comparison of the Main Constituents in Two Varieties of Proso Millet Using GC-MS. Foods 2023; 12:2294. [PMID: 37372504 DOI: 10.3390/foods12122294] [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: 05/01/2023] [Revised: 05/27/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
Proso millet (Panicum miliaceum) is neglected in human nutrition. Thanks to the composition of the grains, millet is suitable for people with celiac disease and it is also useful in the prevention of cardiovascular diseases. For screening the substances in all plant parts of millet via GC-MS, two varieties, Hanacká Mana and Unicum, were used. Substances from the group saccharides, amino acids, fatty acids, carboxylic acids, phytosterols and others were identified in the roots, leaves, stems, and seeds. The highest level of saccharides was found in the stems (83%); amino acids in the roots (6.9%); fatty acids in the seeds (24.6%); carboxylic acids in the roots (3%), phytosterols in the seeds (10.51%); other substances, such as tetramethyl-2-hexadecenol (1.84%) and tocopherols (2.15%), in the leaves; retinal in the roots (1.30%) and squalene in the seeds (1.29%). Saccharides were the dominant group in all plant parts of proso millet followed by fatty acids. The dominant saccharides in all parts of the millet plant were sucrose, fructose and psicose. On the contrary, turanose, trehalose, glucose and cellobiose belonged to the least represented sugars. Additionally, amyrin, miliacin, campesterol, stigmasterol, β-sitosterol, and others were identified. Varietal variability can be assumed, e.g., in retinal, miliacin or amyrin content.
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Affiliation(s)
- Jana Pexová Kalinová
- Faculty of Agriculture and Technology, University of South Bohemia in Ceske Budejovice, Studentska 1668, 370 05 Ceske Budejovice, Czech Republic
| | - Jan Tříska
- Laboratory of Metabolomics and Isotopic Analyses, Global Change Research Institute, CAS, Belidla 986/4a, 603 00 Brno, Czech Republic
- Department of Chemistry, Faculty of Science, University of South Bohemia in Ceske Budejovice, Branisovska 1760, 370 05 Ceske Budejovice, Czech Republic
| | - Karel Hořejší
- Department of Chemistry, Faculty of Science, University of South Bohemia in Ceske Budejovice, Branisovska 1760, 370 05 Ceske Budejovice, Czech Republic
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8
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Cook TM, Isenegger D, Dutta S, Sahab S, Kay P, Aboobucker SI, Biswas E, Heerschap S, Nikolau BJ, Dong L, Lübberstedt T. Overcoming roadblocks for in vitro nurseries in plants: induction of meiosis. FRONTIERS IN PLANT SCIENCE 2023; 14:1204813. [PMID: 37332695 PMCID: PMC10272530 DOI: 10.3389/fpls.2023.1204813] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/17/2023] [Indexed: 06/20/2023]
Abstract
Efforts to increase genetic gains in breeding programs of flowering plants depend on making genetic crosses. Time to flowering, which can take months to decades depending on the species, can be a limiting factor in such breeding programs. It has been proposed that the rate of genetic gain can be increased by reducing the time between generations by circumventing flowering through the in vitro induction of meiosis. In this review, we assess technologies and approaches that may offer a path towards meiosis induction, the largest current bottleneck for in vitro plant breeding. Studies in non-plant, eukaryotic organisms indicate that the in vitro switch from mitotic cell division to meiosis is inefficient and occurs at very low rates. Yet, this has been achieved with mammalian cells by the manipulation of a limited number of genes. Therefore, to experimentally identify factors that switch mitosis to meiosis in plants, it is necessary to develop a high-throughput system to evaluate a large number of candidate genes and treatments, each using large numbers of cells, few of which may gain the ability to induce meiosis.
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Affiliation(s)
- Tanner M. Cook
- Iowa State University, Department of Agronomy, Ames, IA, United States
| | - Daniel Isenegger
- Agriculture Victoria, Agribio, La Trobe University, Melbourne, VIC, Australia
| | - Somak Dutta
- Iowa State University, Department of Statistics, Ames, IA, United States
| | - Sareena Sahab
- Agriculture Victoria, Agribio, La Trobe University, Melbourne, VIC, Australia
| | - Pippa Kay
- Agriculture Victoria, Agribio, La Trobe University, Melbourne, VIC, Australia
| | | | - Eva Biswas
- Iowa State University, Department of Statistics, Ames, IA, United States
| | - Seth Heerschap
- Iowa State University, Department of Electrical and Computer Engineering, Ames, IA, United States
| | - Basil J. Nikolau
- Iowa State University, Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Ames, IA, United States
| | - Liang Dong
- Iowa State University, Department of Electrical and Computer Engineering, Ames, IA, United States
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9
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Yoo HJ, Chung MY, Lee HA, Lee SB, Grandillo S, Giovannoni JJ, Lee JM. Natural overexpression of CAROTENOID CLEAVAGE DIOXYGENASE 4 in tomato alters carotenoid flux. PLANT PHYSIOLOGY 2023; 192:1289-1306. [PMID: 36715630 PMCID: PMC10231392 DOI: 10.1093/plphys/kiad049] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/20/2022] [Accepted: 12/26/2022] [Indexed: 06/01/2023]
Abstract
Carotenoids and apocarotenoids function as pigments and flavor volatiles in plants that enhance consumer appeal and offer health benefits. Tomato (Solanum lycopersicum.) fruit, especially those of wild species, exhibit a high degree of natural variation in carotenoid and apocarotenoid contents. Using positional cloning and an introgression line (IL) of Solanum habrochaites "LA1777', IL8A, we identified carotenoid cleavage dioxygenase 4 (CCD4) as the factor responsible for controlling the dark orange fruit color. CCD4b expression in ripe fruit of IL8A plants was ∼8,000 times greater than that in the wild type, presumably due to 5' cis-regulatory changes. The ShCCD4b-GFP fusion protein localized in the plastid. Phytoene, ζ-carotene, and neurosporene levels increased in ShCCD4b-overexpressing ripe fruit, whereas trans-lycopene, β-carotene, and lutein levels were reduced, suggestive of feedback regulation in the carotenoid pathway by an unknown apocarotenoid. Solid-phase microextraction-gas chromatography-mass spectrometry analysis showed increased levels of geranylacetone and β-ionone in ShCCD4b-overexpressing ripe fruit coupled with a β-cyclocitral deficiency. In carotenoid-accumulating Escherichia coli strains, ShCCD4b cleaved both ζ-carotene and β-carotene at the C9-C10 (C9'-C10') positions to produce geranylacetone and β-ionone, respectively. Exogenous β-cyclocitral decreased carotenoid synthesis in the ripening fruit of tomato and pepper (Capsicum annuum), suggesting feedback inhibition in the pathway. Our findings will be helpful for enhancing the aesthetic and nutritional value of tomato and for understanding the complex regulatory mechanisms of carotenoid and apocarotenoid biogenesis.
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Affiliation(s)
- Hee Ju Yoo
- Department of Horticultural Science, Kyungpook National University, Daegu 41566, Korea
| | - Mi-Young Chung
- Department of Agricultural Education, Sunchon National University, Suncheon 57922, Korea
| | - Hyun-Ah Lee
- Division of Eco-Friendly Horticulture, Yonam College, Cheonan 31005, Korea
| | - Soo-Bin Lee
- Department of Horticultural Science, Kyungpook National University, Daegu 41566, Korea
| | - Silvana Grandillo
- CNR-Institute of Bioscience and Bioresources (IBBR), Via Università 133, 80055 Portici, Italy
| | - James J Giovannoni
- Boyce Thompson Institute and USDA-ARS Robert W. Holley Center, Tower Rd., Cornell University Campus, Ithaca, NY 14853, USA
| | - Je Min Lee
- Department of Horticultural Science, Kyungpook National University, Daegu 41566, Korea
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10
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Lakehal A, Dob A, Beeckman T. Specification and evolution of lateral roots. Curr Biol 2023; 33:R170-R175. [PMID: 36917935 DOI: 10.1016/j.cub.2022.12.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Plants have evolved a remarkable capacity to develop new organs post-embryonically throughout their lifespan. A prime example of this is root branching. Root branching occurs in two ways: dichotomous and lateral branching. The dichotomous branching is the result of the division of the root apical meristem into two daughter meristems, likely through symmetric cell divisions of the root apical cell, as has recently been illustrated in the extant lycophyte Selaginella moellendorffii (Figure 1). Lateral root branching relies on the de novo specification of a subset of founder cells (hereinafter referred to as lateral root stem cells) located in the internal tissues of an existing root. This step is followed by initiation, in which the specified cells re-enter the cell cycle, and subsequently by primordium formation and emergence. In this primer, we summarize recent advances describing the molecular bases underlying lateral root stem cell specification in angiosperms and highlight the important positional signals that fine tune this process. By delving into the evolutionary origins of root branching, we point out that positional control of lateral root stem cell specification has not been the prevailing mechanism among all plants and discuss the process in ferns (i.e., a sister group of seed plants), where it seems to be under the control of lineage-dependent mechanisms.
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Affiliation(s)
- Abdellah Lakehal
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Asma Dob
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Tom Beeckman
- Ghent University, Department of Plant Biotechnology and Bioinformatics, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium.
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11
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Moreno JC, Al-Babili S. Are carotenoids the true colors of crop improvement? THE NEW PHYTOLOGIST 2023; 237:1946-1950. [PMID: 36478583 DOI: 10.1111/nph.18660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Affiliation(s)
- Juan C Moreno
- The Bioactives Laboratory, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 4700, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 4700, Saudi Arabia
| | - Salim Al-Babili
- The Bioactives Laboratory, Center for Desert Agriculture, King Abdullah University of Science and Technology (KAUST), Thuwal, 4700, Saudi Arabia
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 4700, Saudi Arabia
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12
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Pérez-Henríquez P, Yang Z. Extranuclear auxin signaling: a new insight into auxin's versatility. THE NEW PHYTOLOGIST 2023; 237:1115-1121. [PMID: 36336825 DOI: 10.1111/nph.18602] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Auxin phytohormone has a role in most aspects of the life of a land plant and is found even in ancient plants such as single-cell green algae. Auxin's ubiquitous but specific effects have been mainly explained by the extraordinary ability of plants to interpret spatiotemporal patterns of auxin concentrations via the regulation of gene transcription. This is thought to be achieved through the combinatorial effects of two families of nuclear coreceptor proteins, that is the TRANSPORT INHIBITOR RESPONSE1 and AUXIN-SIGNALING F-BOX (TIR1/AFB) and AUXIN/INDOLE ACETIC ACID. Recent evidence has suggested transcription-independent roles of TIR1/AFBs localized outside the nucleus and TRANSMEMBRANE KINASE (TMK)-based auxin signaling occurring in the plasma membrane. Furthermore, emerging evidence supports a coordinated action of the intra- and extranuclear auxin signaling pathways to regulate specific auxin responses. Here, we highlight how auxin signaling acts inside and outside the nucleus for the regulation of growth and morphogenesis and propose that the future direction of auxin biology lies in the elucidation of a new collaborative paradigm of intra- and extranuclear auxin signaling.
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Affiliation(s)
- Patricio Pérez-Henríquez
- Department of Botany and Plant Sciences, Institute of Integrated Genome Biology, University of California, Riverside, CA, 92521, USA
- FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Zhenbiao Yang
- Department of Botany and Plant Sciences, Institute of Integrated Genome Biology, University of California, Riverside, CA, 92521, USA
- FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
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13
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Sierra J, McQuinn RP, Leon P. The role of carotenoids as a source of retrograde signals: impact on plant development and stress responses. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:7139-7154. [PMID: 35776102 DOI: 10.1093/jxb/erac292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Communication from plastids to the nucleus via retrograde signal cascades is essential to modulate nuclear gene expression, impacting plant development and environmental responses. Recently, a new class of plastid retrograde signals has emerged, consisting of acyclic and cyclic carotenoids and/or their degradation products, apocarotenoids. Although the biochemical identity of many of the apocarotenoid signals is still under current investigation, the examples described herein demonstrate the central roles that these carotenoid-derived signals play in ensuring plant development and survival. We present recent advances in the discovery of apocarotenoid signals and their role in various plant developmental transitions and environmental stress responses. Moreover, we highlight the emerging data exposing the highly complex signal transduction pathways underlying plastid to nucleus apocarotenoid retrograde signaling cascades. Altogether, this review summarizes the central role of the carotenoid pathway as a major source of retrograde signals in plants.
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Affiliation(s)
- Julio Sierra
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad, Ciudada de México, México
| | - Ryan P McQuinn
- School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Patricia Leon
- Departamento de Biología Molecular de Plantas, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad, Ciudada de México, México
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14
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Ke D, Guo J, Li K, Wang Y, Han X, Fu W, Miao Y, Jia KP. Carotenoid-derived bioactive metabolites shape plant root architecture to adapt to the rhizospheric environments. FRONTIERS IN PLANT SCIENCE 2022; 13:986414. [PMID: 36388571 PMCID: PMC9643742 DOI: 10.3389/fpls.2022.986414] [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: 07/05/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Roots are important plant organs for the uptake of water and nutrient elements. Plant root development is finely regulated by endogenous signals and environmental cues, which shapes the root system architecture to optimize the plant growth and adapt to the rhizospheric environments. Carotenoids are precursors of plant hormones strigolactones (SLs) and ABA, as well as multiple bioactive molecules. Numerous studies have demonstrated SLs and ABA as essential regulators of plant root growth and development. In addition, a lot carotenoid-derived bioactive metabolites are recently identified as plant root growth regulators, such as anchorene, β-cyclocitral, retinal and zaxinone. However, our knowledge on how these metabolites affect the root architecture to cope with various stressors and how they interact with each other during these processes is still quite limited. In the present review, we will briefly introduce the biosynthesis of carotenoid-derived root regulators and elaborate their biological functions on root development and architecture, focusing on their contribution to the rhizospheric environmental adaption of plants.
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Affiliation(s)
- Danping Ke
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | - Jinggong Guo
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
- Sanya Institute of Henan University, Sanya, Hainan, China
- Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, China
| | - Kun Li
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
- Sanya Institute of Henan University, Sanya, Hainan, China
- Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, China
| | - Yujie Wang
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | - Xiaomeng Han
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | - Weiwei Fu
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | - Yuchen Miao
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
- Sanya Institute of Henan University, Sanya, Hainan, China
- Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, China
| | - Kun-Peng Jia
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
- Sanya Institute of Henan University, Sanya, Hainan, China
- Academy for Advanced Interdisciplinary Studies, Henan University, Kaifeng, China
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15
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Perez-Garcia P, Serrano-Ron L, Moreno-Risueno MA. The nature of the root clock at single cell resolution: Principles of communication and similarities with plant and animal pulsatile and circadian mechanisms. Curr Opin Cell Biol 2022; 77:102102. [DOI: 10.1016/j.ceb.2022.102102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/14/2022] [Accepted: 04/24/2022] [Indexed: 11/30/2022]
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16
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Beltrán J, Wurtzel ET. Enzymatic isomerization of ζ-carotene mediated by the heme-containing isomerase Z-ISO. Methods Enzymol 2022; 671:153-170. [PMID: 35878976 DOI: 10.1016/bs.mie.2021.09.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Carotenoids are a large and diverse class of isoprenoid compounds synthesized by plants, algae, some bacteria, arthropods, and fungi. These pigments contribute to plant growth and survival by protecting plants from photooxidative stress and serving as precursors of plant hormones and other signaling compounds. In humans, carotenoids are essential components of the diet and contribute anti-oxidant and provitamin A activities. Carotenoids are synthesized in the membranes of plant plastids where phytoene is converted into all trans lycopene by a biosynthetic pathway that was only recently completed by the discovery of the new enzyme, 15-cis-ζ-carotene isomerase (Z-ISO), which controls carotenoid pathway flux to products necessary for plant development and function. Z-ISO catalysis of the cis to trans isomerization of the 15-cis double bond in 15-cis-ζ-carotene is mediated by a unique mechanism dependent on the redox-state of a heme b cofactor. This chapter describe methods for the functional analysis of Z-ISO, including complementation of Z-ISO in engineered E. coli, separation of Z-ISO enzyme substrate and products, ζ-carotene isomers, by high pressure liquid chromatography (HPLC), expression and purification of Z-ISO and in vitro enzymatic reactions.
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Affiliation(s)
- Jesús Beltrán
- Department of Biological Sciences, Lehman College, City University of New York (CUNY), Bronx, NY, United States; Graduate School and University Center, CUNY, New York, NY, United States
| | - Eleanore T Wurtzel
- Department of Biological Sciences, Lehman College, City University of New York (CUNY), Bronx, NY, United States; Graduate School and University Center, CUNY, New York, NY, United States.
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17
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Damineli DSC, Portes MT, Feijó JA. Electrifying rhythms in plant cells. Curr Opin Cell Biol 2022; 77:102113. [PMID: 35809387 DOI: 10.1016/j.ceb.2022.102113] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 05/10/2022] [Accepted: 06/05/2022] [Indexed: 12/12/2022]
Abstract
Physiological oscillations (or rhythms) pervade all spatiotemporal scales of biological organization, either because they perform critical functions or simply because they can arise spontaneously and may be difficult to prevent. Regardless of the case, they reflect regulatory relationships between control points of a given system and offer insights as read-outs of the concerted regulation of a myriad of biological processes. Here we review recent advances in understanding ultradian oscillations (period < 24h) in plant cells, with a special focus on single-cell oscillations. Ion channels are at the center stage due to their involvement in electrical/excitabile phenomena associated with oscillations and cell-cell communication. We highlight the importance of quantitative approaches to measure oscillations in appropriate physiological conditions, which are essential strategies to deal with the complexity of biological rhythms. Future development of optogenetics techniques in plants will further boost research on the role of membrane potential in oscillations and waves across multiple cell types.
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Affiliation(s)
- Daniel S C Damineli
- Department of Computer Science, Institute of Mathematics and Statistics, University of São Paulo, São Paulo, SP 05508-090, Brazil.
| | - Maria Teresa Portes
- Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, SP 05508-090, Brazil
| | - José A Feijó
- Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742-5815, USA
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18
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Zhou Z, Zhang L, Shu J, Wang M, Li H, Shu H, Wang X, Sun Q, Zhang S. Root Breeding in the Post-Genomics Era: From Concept to Practice in Apple. PLANTS (BASEL, SWITZERLAND) 2022; 11:1408. [PMID: 35684181 PMCID: PMC9182997 DOI: 10.3390/plants11111408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/05/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
The development of rootstocks with a high-quality dwarf-type root system is a popular research topic in the apple industry. However, the precise breeding of rootstocks is still challenging, mainly because the root system is buried deep underground, roots have a complex life cycle, and research on root architecture has progressed slowly. This paper describes ideas for the precise breeding and domestication of wild apple resources and the application of key genes. The primary goal of this research is to combine the existing rootstock resources with molecular breeding and summarize the methods of precision breeding. Here, we reviewed the existing rootstock germplasm, high-quality genome, and genetic resources available to explain how wild resources might be used in modern breeding. In particular, we proposed the 'from genotype to phenotype' theory and summarized the difficulties in future breeding processes. Lastly, the genetics governing root diversity and associated regulatory mechanisms were elaborated on to optimize the precise breeding of rootstocks.
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Affiliation(s)
- Zhou Zhou
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
| | - Lei Zhang
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
| | - Jing Shu
- College of Forestry Engineering, Shandong Agriculture and Engineering University, Jinan 250100, China;
| | - Mengyu Wang
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
| | - Han Li
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
| | - Huairui Shu
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
| | - Xiaoyun Wang
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
| | - Qinghua Sun
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
| | - Shizhong Zhang
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an 271018, China; (Z.Z.); (L.Z.); (M.W.); (H.L.); (H.S.); (X.W.)
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19
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Bustillo-Avendaño E, Serrano-Ron L, Moreno-Risueno MA. The Root Clock as a Signal Integrator System: Ensuring Balance for Survival. FRONTIERS IN PLANT SCIENCE 2022; 13:886700. [PMID: 35665188 PMCID: PMC9161171 DOI: 10.3389/fpls.2022.886700] [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: 02/28/2022] [Accepted: 04/28/2022] [Indexed: 06/15/2023]
Abstract
The root system is essential for the survival of terrestrial plants, plant development, and adaptation to changing environments. The development of the root system relies on post-embryonic organogenesis and more specifically on the formation and growth of lateral roots (LR). The spacing of LR along the main root is underpinned by a precise prepatterning mechanism called the Root Clock. In Arabidopsis, the primary output of this mechanism involves the generation of periodic gene expression oscillations in a zone close to the root tip called the Oscillation Zone (OZ). Because of these oscillations, pre-branch sites (PBS) are established in the positions from which LR will emerge, although the oscillations can also possibly regulate the root wavy pattern and growth. Furthermore, we show that the Root Clock is present in LR. In this review, we describe the recent advances unraveling the inner machinery of Root Clock as well as the new tools to track the Root Clock activity. Moreover, we discuss the basis of how Arabidopsis can balance the creation of a repetitive pattern while integrating both endogenous and exogenous signals to adapt to changing environmental conditions. These signals can work as entrainment signals, but in occasions they also affect the periodicity and amplitude of the oscillatory dynamics in gene expression. Finally, we identify similarities with the Segmentation Clock of vertebrates and postulate the existence of a determination front delimiting the end of the oscillations in gene expression and initiating LR organogenesis through the activation of PBS in an ARF7 dependent-manner.
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Affiliation(s)
| | | | - Miguel A. Moreno-Risueno
- Centro de Biotecnología y Genómica de Plantas (Universidad Politécnica de Madrid – Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria), Madrid, Spain
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20
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Zhang Y, Umeda M, Kakimoto T. Pericycle cell division competence underlies various developmental programs. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2022; 39:29-36. [PMID: 35800961 PMCID: PMC9200087 DOI: 10.5511/plantbiotechnology.21.1202a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/02/2021] [Indexed: 05/08/2023]
Abstract
Pericycle cells possess proliferative activity long after leaving the root apical meristem. Depending on the developmental stage and external stimuli, pericycle cell division leads to the production of lateral roots, vascular cambium and periderm, and callus. Therefore, pericycle cell division competence underlies root branching and secondary growth, as well as plant regeneration capacity. In this review, we first briefly present an overview of the molecular pathways of the four developmental programs originated, exclusively or partly, from pericycle cells. Then, we provide a review of up-to-date knowledge in the mechanisms determining pericycle cells' competence to undergo cell division. Furthermore, we discuss directions of future research to further our understanding of the pericycle's characteristics and functions.
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Affiliation(s)
- Ye Zhang
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara 630-0192, Japan
- E-mail: Tel: +81-743-72-5592 Fax: +81-743-72-5599
| | - Masaaki Umeda
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Nara 630-0192, Japan
| | - Tatsuo Kakimoto
- Department of Biology, Graduate School of Science, Osaka University, Osaka 560-0043, Japan
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21
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Omary M, Gil-Yarom N, Yahav C, Steiner E, Hendelman A, Efroni I. A conserved superlocus regulates above- and belowground root initiation. Science 2022; 375:eabf4368. [PMID: 35239373 DOI: 10.1126/science.abf4368] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Plants continuously form new organs in different developmental contexts in response to environmental cues. Underground lateral roots initiate from prepatterned cells in the main root, but cells can also bypass the root-shoot trajectory separation and generate shoot-borne roots through an unknown mechanism. We mapped tomato (Solanum lycopersicum) shoot-borne root development at single-cell resolution and showed that these roots initiate from phloem-associated cells through a unique transition state. This state requires the activity of a transcription factor that we named SHOOTBORNE ROOTLESS (SBRL). Evolutionary analysis reveals that SBRL's function and cis regulation are conserved in angiosperms and that it arose as an ancient duplication, with paralogs controlling wound-induced and lateral root initiation. We propose that the activation of a common transition state by context-specific regulators underlies the plasticity of plant root systems.
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Affiliation(s)
- Moutasem Omary
- The Institute of Plant Science and Genetics in Agriculture, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Naama Gil-Yarom
- The Institute of Plant Science and Genetics in Agriculture, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Chen Yahav
- The Institute of Plant Science and Genetics in Agriculture, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Evyatar Steiner
- Department of Plant Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Anat Hendelman
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Idan Efroni
- The Institute of Plant Science and Genetics in Agriculture, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
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22
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G. Viana W, Scharwies JD, Dinneny JR. Deconstructing the root system of grasses through an exploration of development, anatomy and function. PLANT, CELL & ENVIRONMENT 2022; 45:602-619. [PMID: 35092025 PMCID: PMC9303260 DOI: 10.1111/pce.14270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 05/16/2023]
Abstract
Well-adapted root systems allow plants to grow under resource-limiting environmental conditions and are important determinants of yield in agricultural systems. Important staple crops such as rice and maize belong to the family of grasses, which develop a complex root system that consists of an embryonic root system that emerges from the seed, and a postembryonic nodal root system that emerges from basal regions of the shoot after germination. While early seedling establishment is dependent on the embryonic root system, the nodal root system, and its associated branches, gains in importance as the plant matures and will ultimately constitute the bulk of below-ground growth. In this review, we aim to give an overview of the different root types that develop in cereal grass root systems, explore the different physiological roles they play by defining their anatomical features, and outline the genetic networks that control their development. Through this deconstructed view of grass root system function, we provide a parts-list of elements that function together in an integrated root system to promote survival and crop productivity.
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Affiliation(s)
| | | | - José R. Dinneny
- Department of BiologyStanford UniversityStanfordCaliforniaUSA
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23
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Mi J, Liew KX, Al-Babili S. Ultrahigh-Performance Liquid Chromatography-Mass Spectrometry Analysis of Carotenoid-Derived Hormones and Apocarotenoids in Plants. Curr Protoc 2022; 2:e375. [PMID: 35201678 DOI: 10.1002/cpz1.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Carotenoid oxidative cleavage products, apocarotenoids (APOs), are a class of important plant secondary metabolites, which include phytohormones abscisic acid (ABA) and strigolactones (SLs), and growth regulators and signaling molecules such as β-cyclocitral, zaxinone, anchorene, β-apo-11-carotenoids, and retinal. Qualitative and quantitative analysis of these bioactive compounds is crucial for understanding their metabolism and may also enable discovering further regulatory APOs. The state-of-the-art mass spectrometry (MS) technology has advanced the detection of plant APOs; however, it is still challenging to perform an accurate analysis of the low-level phytohormones ABA and SL and the structurally diverse APOs from complex plant matrices. Here, we describe ultrahigh-performance liquid chromatography-MS (UHPLC-MS) methods to determine carotenoid-derived hormones and APOs from plants by integrating ultrasound-assisted extraction and solid-phase extraction. These assays enable an accurate quantification of carotenoid-derived hormones and APOs from plant tissues by using an UHPLC hybrid quadrupole-Orbitrap mass spectrometer. © 2022 Wiley Periodicals LLC. Basic Protocol 1: UHPLC-MS analysis of APOs from rice roots Support Protocol: Preparation of dried plant root powder Basic Protocol 2: UHPLC-MS analysis of SLs from rice roots Basic Protocol 3: UHPLC-MS analysis of ABA from rice roots.
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Affiliation(s)
- Jianing Mi
- The BioActives Lab, Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
| | - Kit Xi Liew
- The BioActives Lab, Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
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24
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Luciano MP, Timilsina R, Schnermann MJ, Dickinson AJ. Imaging retinaldehyde-protein binding in plants using a merocyanine reporter. Methods Enzymol 2022; 671:421-433. [DOI: 10.1016/bs.mie.2022.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Screening for apocarotenoid plant growth regulators in Arabidopsis. Methods Enzymol 2022; 674:481-495. [DOI: 10.1016/bs.mie.2022.03.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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