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Dirk LMA, Abdel CG, Ahmad I, Neta ICS, Pereira CC, Pereira FECB, Unêda-Trevisoli SH, Pinheiro DG, Downie AB. Late Embryogenesis Abundant Protein-Client Protein Interactions. PLANTS (BASEL, SWITZERLAND) 2020; 9:E814. [PMID: 32610443 PMCID: PMC7412488 DOI: 10.3390/plants9070814] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 12/13/2022]
Abstract
The intrinsically disordered proteins belonging to the LATE EMBRYOGENESIS ABUNDANT protein (LEAP) family have been ascribed a protective function over an array of intracellular components. We focus on how LEAPs may protect a stress-susceptible proteome. These examples include instances of LEAPs providing a shield molecule function, possibly by instigating liquid-liquid phase separations. Some LEAPs bind directly to their client proteins, exerting a holdase-type chaperonin function. Finally, instances of LEAP-client protein interactions have been documented, where the LEAP modulates (interferes with) the function of the client protein, acting as a surreptitious rheostat of cellular homeostasis. From the examples identified to date, it is apparent that client protein modulation also serves to mitigate stress. While some LEAPs can physically bind and protect client proteins, some apparently bind to assist the degradation of the client proteins with which they associate. Documented instances of LEAP-client protein binding, even in the absence of stress, brings to the fore the necessity of identifying how the LEAPs are degraded post-stress to render them innocuous, a first step in understanding how the cell regulates their abundance.
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Affiliation(s)
- Lynnette M. A. Dirk
- Department of Horticulture, University of Kentucky Seed Biology Program, Plant Science Building, 1405 Veterans Drive, University of Kentucky, Lexington, KY 40546-0312, USA;
| | - Caser Ghaafar Abdel
- Agriculture College, Al-Muthanna University, Samawah, Al-Muthanna 66001, Iraq;
| | - Imran Ahmad
- Department of Horticulture, Faculty of Crop Production Sciences, The University of Agriculture, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan;
| | | | - Cristiane Carvalho Pereira
- Departamento de Agricultura—Setor de Sementes, Federal University of Lavras, Lavras, Minas Gerais CEP: 37200-000, Brazil;
| | | | - Sandra Helena Unêda-Trevisoli
- Department of Vegetable Production, (UNESP) National University of São Paulo, Jaboticabal, São Paulo CEP: 14884-900, Brazil;
| | - Daniel Guariz Pinheiro
- Department of Biology, Faculty of Philosophy, Science and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo CEP: 14040-901, Brazil;
| | - Allan Bruce Downie
- Department of Horticulture, University of Kentucky Seed Biology Program, Plant Science Building, 1405 Veterans Drive, University of Kentucky, Lexington, KY 40546-0312, USA;
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52
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Caine RS, Chater CCC, Fleming AJ, Gray JE. Stomata and Sporophytes of the Model Moss Physcomitrium patens. FRONTIERS IN PLANT SCIENCE 2020; 11:643. [PMID: 32523599 PMCID: PMC7261847 DOI: 10.3389/fpls.2020.00643] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/27/2020] [Indexed: 05/04/2023]
Abstract
Mosses are an ancient land plant lineage and are therefore important in studying the evolution of plant developmental processes. Here, we describe stomatal development in the model moss species Physcomitrium patens (previously known as Physcomitrella patens) over the duration of sporophyte development. We dissect the molecular mechanisms guiding cell division and fate and highlight how stomatal function might vary under different environmental conditions. In contrast to the asymmetric entry divisions described in Arabidopsis thaliana, moss protodermal cells can enter the stomatal lineage directly by expanding into an oval shaped guard mother cell (GMC). We observed that when two early stage P. patens GMCs form adjacently, a spacing division can occur, leading to separation of the GMCs by an intervening epidermal spacer cell. We investigated whether orthologs of Arabidopsis stomatal development regulators are required for this spacing division. Our results indicated that bHLH transcription factors PpSMF1 and PpSCRM1 are required for GMC formation. Moreover, the ligand and receptor components PpEPF1 and PpTMM are also required for orientating cell divisions and preventing single or clustered early GMCs from developing adjacent to one another. The identification of GMC spacing divisions in P. patens raises the possibility that the ability to space stomatal lineage cells could have evolved before mosses diverged from the ancestral lineage. This would have enabled plants to integrate stomatal development with sporophyte growth and could underpin the adoption of multiple bHLH transcription factors and EPF ligands to more precisely control stomatal patterning in later diverging plant lineages. We also observed that when P. patens sporophyte capsules mature in wet conditions, stomata are typically plugged whereas under drier conditions this is not the case; instead, mucilage drying leads to hollow sub-stomatal cavities. This appears to aid capsule drying and provides further evidence for early land plant stomata contributing to capsule rupture and spore release.
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Affiliation(s)
- Robert S. Caine
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
| | - Caspar C. C. Chater
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
| | - Andrew J. Fleming
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom
| | - Julie E. Gray
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
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53
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Zhao C, Zhang H, Song C, Zhu JK, Shabala S. Mechanisms of Plant Responses and Adaptation to Soil Salinity. Innovation (N Y) 2020; 1:100017. [PMID: 34557705 PMCID: PMC8454569 DOI: 10.1016/j.xinn.2020.100017] [Citation(s) in RCA: 289] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Soil salinity is a major environmental stress that restricts the growth and yield of crops. Understanding the physiological, metabolic, and biochemical responses of plants to salt stress and mining the salt tolerance-associated genetic resource in nature will be extremely important for us to cultivate salt-tolerant crops. In this review, we provide a comprehensive summary of the mechanisms of salt stress responses in plants, including salt stress-triggered physiological responses, oxidative stress, salt stress sensing and signaling pathways, organellar stress, ion homeostasis, hormonal and gene expression regulation, metabolic changes, as well as salt tolerance mechanisms in halophytes. Important questions regarding salt tolerance that need to be addressed in the future are discussed.
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Affiliation(s)
- Chunzhao Zhao
- Shanghai Center for Plant Stress Biology and CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Heng Zhang
- State Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Chunpeng Song
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Jian-Kang Zhu
- Shanghai Center for Plant Stress Biology and CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
| | - Sergey Shabala
- International Research Centre for Environmental Membrane Biology, Foshan University, Foshan 528000, China
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, TAS 7001, Australia
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54
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Otani Y, Tomonaga Y, Tokushige K, Kamimura M, Sasaki A, Nakamura Y, Nakamura T, Matsuo T, Okamoto S. Expression profiles of four BES1/ BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis. JOURNAL OF PESTICIDE SCIENCE 2020; 45:95-104. [PMID: 32508516 PMCID: PMC7251199 DOI: 10.1584/jpestics.d20-001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/10/2020] [Indexed: 05/28/2023]
Abstract
Arabidopsis bHLH-type transcription factors-BRASSINOSTEROID INSENSITIVE 1-EMS-SUPPRESSOR 1 (BES1) and BRASSINAZOLE RESISTANT 1 (BZR1)-play key roles in brassinosteroid (BR) signaling. By contrast, the functions of the other four BES1/BZR1 homologs (BEH1-4) remain unknown. Here, we describe the detailed expression profiles of the BES1/BZR1 family genes. Their expressions were distinct regarding growth-stage dependence and organ specificity but exhibited some overlaps as well. Furthermore, their mRNA levels mostly remained unchanged responding to seven non-BR phytohormones. However, BEH1 and BEH2 were downregulated by brassinolide, suggesting a close association with the BR function. Additionally, BEH4 was ubiquitously expressed throughout the life of the plant but displayed some expression preference. For instance, BEH4 expression was limited to guard cells and the adjacent pavement cells in the leaf epidermis and was induced during growth progression in very young seedlings, suggesting that BEH4 is specifically regulated in certain contexts, although it is almost constitutively controlled.
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Affiliation(s)
- Yui Otani
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Yusuke Tomonaga
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Kenya Tokushige
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Miyu Kamimura
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Azusa Sasaki
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Yasushi Nakamura
- Department of Japanese Food Culture, Faculty of Letters, Kyoto Prefectural University, Kyoto, Japan
| | - Takako Nakamura
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Tomoaki Matsuo
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Shigehisa Okamoto
- The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
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55
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Seerangan K, van Spoordonk R, Sampathkumar A, Eng RC. Long-term live-cell imaging techniques for visualizing pavement cell morphogenesis. Methods Cell Biol 2020; 160:365-380. [PMID: 32896328 DOI: 10.1016/bs.mcb.2020.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Recent advancements in microscopy and biological technologies have allowed scientists to study dynamic plant developmental processes with high temporal and spatial resolution. Pavement cells, epidermal cells found on leaf tissue, form complex shapes with alternating regions of indentations and outgrowths that are postulated to be driven by the microtubule cytoskeleton. Given their complex shapes, pavement cells and the microtubule contribution towards morphogenesis have been of great interest in the field of developmental biology. Here, we focus on two live-cell imaging methods that allow for early and long-term imaging of the cotyledon (embryonic leaf-like tissue) and leaf epidermis with minimal invasiveness in order to study microtubules throughout pavement cell morphogenesis. The methods described in this chapter can be applied to studying other developmental processes associated with cotyledon and leaf tissue.
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Affiliation(s)
- Kumar Seerangan
- Plant Cell Biology & Microscopy, Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Ruben van Spoordonk
- Plant Cell Biology & Microscopy, Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
| | - Arun Sampathkumar
- Plant Cell Biology & Microscopy, Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany.
| | - Ryan Christopher Eng
- Plant Cell Biology & Microscopy, Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany.
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56
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Li FW, Nishiyama T, Waller M, Frangedakis E, Keller J, Li Z, Fernandez-Pozo N, Barker MS, Bennett T, Blázquez MA, Cheng S, Cuming AC, de Vries J, de Vries S, Delaux PM, Diop IS, Harrison CJ, Hauser D, Hernández-García J, Kirbis A, Meeks JC, Monte I, Mutte SK, Neubauer A, Quandt D, Robison T, Shimamura M, Rensing SA, Villarreal JC, Weijers D, Wicke S, Wong GKS, Sakakibara K, Szövényi P. Anthoceros genomes illuminate the origin of land plants and the unique biology of hornworts. NATURE PLANTS 2020; 6:259-272. [PMID: 32170292 PMCID: PMC8075897 DOI: 10.1038/s41477-020-0618-2] [Citation(s) in RCA: 170] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 02/11/2020] [Indexed: 05/12/2023]
Abstract
Hornworts comprise a bryophyte lineage that diverged from other extant land plants >400 million years ago and bears unique biological features, including a distinct sporophyte architecture, cyanobacterial symbiosis and a pyrenoid-based carbon-concentrating mechanism (CCM). Here, we provide three high-quality genomes of Anthoceros hornworts. Phylogenomic analyses place hornworts as a sister clade to liverworts plus mosses with high support. The Anthoceros genomes lack repeat-dense centromeres as well as whole-genome duplication, and contain a limited transcription factor repertoire. Several genes involved in angiosperm meristem and stomatal function are conserved in Anthoceros and upregulated during sporophyte development, suggesting possible homologies at the genetic level. We identified candidate genes involved in cyanobacterial symbiosis and found that LCIB, a Chlamydomonas CCM gene, is present in hornworts but absent in other plant lineages, implying a possible conserved role in CCM function. We anticipate that these hornwort genomes will serve as essential references for future hornwort research and comparative studies across land plants.
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Affiliation(s)
- Fay-Wei Li
- Boyce Thompson Institute, Ithaca, NY, USA.
- Plant Biology Section, Cornell University, Ithaca, NY, USA.
| | - Tomoaki Nishiyama
- Advanced Science Research Center, Kanazawa University, Ishikawa, Japan
| | - Manuel Waller
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | | | - Jean Keller
- LRSV, Université de Toulouse, CNRS, UPS Castanet-Tolosan, Toulouse, France
| | - Zheng Li
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | | | - Michael S Barker
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - Tom Bennett
- Centre for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Miguel A Blázquez
- Instituto de Biología Molecular y Celular de Plantas, CSIC-Universidad Politécnica de Valencia, Valencia, Spain
| | - Shifeng Cheng
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Andrew C Cuming
- Centre for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Jan de Vries
- Institute for Microbiology and Genetics, Department of Applied Bioinformatics, Georg-August University Göttingen, Göttingen, Germany
| | - Sophie de Vries
- Institute of Population Genetics, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Pierre-Marc Delaux
- LRSV, Université de Toulouse, CNRS, UPS Castanet-Tolosan, Toulouse, France
| | - Issa S Diop
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - C Jill Harrison
- School of Biological Sciences, University of Bristol, Bristol, UK
| | | | - Jorge Hernández-García
- Instituto de Biología Molecular y Celular de Plantas, CSIC-Universidad Politécnica de Valencia, Valencia, Spain
| | - Alexander Kirbis
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - John C Meeks
- Department of Microbiology and Molecular Genetics, University of California, Davis, CA, USA
| | - Isabel Monte
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Sumanth K Mutte
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, the Netherlands
| | - Anna Neubauer
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland
| | - Dietmar Quandt
- Nees Institute for Biodiversity of Plants, University of Bonn, Bonn, Germany
| | - Tanner Robison
- Boyce Thompson Institute, Ithaca, NY, USA
- Plant Biology Section, Cornell University, Ithaca, NY, USA
| | - Masaki Shimamura
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Stefan A Rensing
- Faculty of Biology, Philipps University of Marburg, Marburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
- LOEWE Center for Synthetic Microbiology (SYNMIKRO), University of Marburg, Marburg, Germany
| | - Juan Carlos Villarreal
- Department of Biology, Laval University, Quebec City, Quebec, Canada
- Smithsonian Tropical Research Institute, Balboa, Panamá
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, the Netherlands
| | - Susann Wicke
- Institute for Evolution and Biodiversity, University of Muenster, Münster, Germany
| | - Gane K-S Wong
- Department of Biological Sciences, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
- BGI-Shenzhen, Shenzhen, China
| | | | - Péter Szövényi
- Department of Systematic and Evolutionary Botany, University of Zurich, Zurich, Switzerland.
- Zurich-Basel Plant Science Center, Zurich, Switzerland.
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57
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Regulation of Photomorphogenic Development by Plant Phytochromes. Int J Mol Sci 2019; 20:ijms20246165. [PMID: 31817722 PMCID: PMC6941077 DOI: 10.3390/ijms20246165] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 12/03/2022] Open
Abstract
Photomorphogenesis and skotomorphogenesis are two key events that control plant development, from seed germination to flowering and senescence. A group of wavelength-specific photoreceptors, E3 ubiquitin ligases, and various transcription factors work together to regulate these two critical processes. Phytochromes are the main photoreceptors in plants for perceiving red/far-red light and transducing the light signals to downstream factors that regulate the gene expression network for photomorphogenic development. In this review, we highlight key developmental stages in the life cycle of plants and how phytochromes and other components in the phytochrome signaling pathway play roles in plant growth and development.
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58
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Delgado D, Sánchez-Bermejo E, de Marcos A, Martín-Jimenez C, Fenoll C, Alonso-Blanco C, Mena M. A Genetic Dissection of Natural Variation for Stomatal Abundance Traits in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2019; 10:1392. [PMID: 31781138 PMCID: PMC6859887 DOI: 10.3389/fpls.2019.01392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 10/09/2019] [Indexed: 05/20/2023]
Abstract
Stomatal abundance varies widely across natural populations of Arabidopsis thaliana, and presumably affects plant performance because it influences water and CO2 exchange with the atmosphere and thence photosynthesis and transpiration. In order to determine the genetic basis of this natural variation, we have analyzed a recombinant inbred line (RIL) population derived from the wild accession Ll-0 and the reference strain Landsberg erecta (Ler), which show low and high stomatal abundance, respectively. Quantitative trait locus (QTL) analyses of stomatal index, stomatal density, and pavement cell density measured in the adaxial cotyledon epidermis, identified five loci. Three of the genomic regions affect all traits and were named MID (Modulator of Cell Index and Density) 1 to 3. MID2 is a large-effect QTL overlapping with ERECTA (ER), the er-1 allele from Ler increasing all trait values. Additional analyses of natural and induced loss-of-function er mutations in different genetic backgrounds revealed that ER dysfunctions have differential and opposite effects on the stomatal index in adaxial and abaxial cotyledon epidermis and confirmed that ER is the gene underlying MID2. Ll-0 alleles at MID1 and MID3 displayed moderate and positive effects on the various traits. Furthermore, detailed developmental studies tracking primary and satellite stomatal lineages show that MID3-Ll-0 allele promotes the spacing divisions that initiate satellite lineages, while the ER allele limits them. Finally, expression analyses suggest that ER and MID3 modulate satellization through partly different regulatory pathways. Our characterization of MID3 indicates that genetic modulation of satellization contributes to the variation for stomatal abundance in natural populations, and subsequently that this trait might be involved in plant adaptation.
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Affiliation(s)
- Dolores Delgado
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Toledo, Spain
| | - Eduardo Sánchez-Bermejo
- Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Alberto de Marcos
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Toledo, Spain
| | - Cristina Martín-Jimenez
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Toledo, Spain
| | - Carmen Fenoll
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Toledo, Spain
| | - Carlos Alonso-Blanco
- Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Montaña Mena
- Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Toledo, Spain
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59
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Larue H, Zhang S. SCREAM in the making of stomata. NATURE PLANTS 2019; 5:648-649. [PMID: 31235875 DOI: 10.1038/s41477-019-0460-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Affiliation(s)
- Huachun Larue
- Global Breeding, Bayer Crop Science, Bayer, Chesterfield, MO, USA.
| | - Shuqun Zhang
- Division of Biochemistry, Interdisciplinary Plant Group, Bond Life Sciences Center, University of Missouri, Columbia, MO, USA.
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