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Comparative transcriptomics reveals hidden issues in the plant response to arthropod herbivores

Journal of Integrative Plant Biology 2021年第2期63卷 312-326页

作者： M.Estrella Santamaria Alejandro Garcia Ana Amaiz Irene Rosa-Diaz Gara Romero-Hernandez Isabel Diaz Manuel Martinez centro de biotecnologia y Genomica de Plantas Instituto Nacional de Investigacion y Tecnologia Agraria y AlimentariaUniversidad Politecnica de MadridMadridSpain departamento de biotecnologia-Biologia vegetal Escuela Tecnica Superior de Ingenierfa AgronomicaAlimentaria y de BiosistemasUniversidad Politecnica de MadridMadridSpain

Plants experience different abiotic/biotic stresses,which trigger their molecular machinery to cope with them. Besides general mechanisms prompted by many stresses, specific mechanisms have been introduced to optimize the response to individual threats. However, these key mechanisms are difficult to identify. Here, we introduce an in-depth species-specific transcriptomic analysis and conduct an extensive meta-analysis of the responses to related species to gain more knowledge about plant responses. The spider mite Tetranychus urticae was used as the individual species, several arthropod herbivores as the related species for meta-analysis, and Arabidopsis thaliana plants as the common host. The analysis of the transcriptomic data showed typical common responses to herbivory, such as jasmonate signaling or glucosinolate biosynthesis. Also, a specific set of genes likely involved in the particularities of the Arabidopsis-spider mite interaction was discovered. The new findings have determined a prominent role in this interaction of the jasmonateinduced pathways leading to the biosynthesis of anthocyanins and tocopherols. Therefore, tandem individual/general transcriptomic profiling has been revealed as an effective method to identify novel relevant processes and specificities in the plant response to environmental stresses.

关键词： Arabidopsis thaliana arthropod herbivore comparative transcriptomics plant defense Tetranychus urticae

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OsDMI3,a Ca^(2+)/calmodulin kinase,integrates and amplifies H_(2)O_(2) and Ca^(2+) signaling in ABA-mediated responses

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Molecular Plant 2023年第6期16卷 968-970页

作者： Miguel-Angel Torres Diego Jose Berlanga centro de biotecnologia y Genomica de Plantas Universidad Politecnica de Madrid(UPM)-Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria(INIA/CSIC)Campus de Montegancedo UPM28223 Pozuelo de AlarconMadridSpain departamento de biotecnologia-Biologia vegetal Escuela Técnica Superior de Ingenieria AgronomicaAlimentaria y de BiosistemasUPM28040 MadridSpain

Abscisic acid(ABA)is an important hormone that regulates both plant development and stress responses(Chen et al.,2020).In the absence of ABA,group A PROTEIN PHOSPHATASE 2Cs(PP2Cs)interact with and inhibit SUCROSE-NON-FERMENTING 1-RELATED KINASES 2(SnRK2s).When ABA is present,ABA receptor PyRABACTIN RESISTANCE 1 and PyRABACTIN RESISTANCE 1-LIKE PROTEINS bind to and inhibit PP2Cs,allowing phosphorylation and activation of SnRK2s that,in turn,phosphorylate downstream targets,such as transcription factors,ion channels,and transporters(Figure 1).

关键词： SnRK2 Figure

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Reconstruction of lateral root formation through single-cell RNA sequencing reveals order of tissue in itiation

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Molecular Plant 2021年第8期14卷 1362-1378页

作者： Laura Serrano-Ron Pablo Perez-Garcia Alvaro Sanchez-Corrionero Inmaculada Gude Javier Cabrera Pui-Leng Ip Kenneth D.Birnbaum Miguel A.Moreno-Risueno centro de biotecnologia y Genomica de Plantas Universidad Politecnica de Madrid(UPM)-lnstituto Naci on al de Investigacion y Tec no logia Agraria y Alimentaria(INIA)Pozuelo de Alarcon28223 MadridSpain departamento de biotecnologia-Biologia vegetal Escuela Tecnica Superior de Ingenieria AgronomicaAlimentaria y de BiosistemasUniversidad Politecnica de Madrid(UPM)28040 MadridSpain Center for Genomics and Systems Biology Department of BiologyNew York UniversityNew YorkNYUSA

Postembryonic organogenesis is critical for plant development.Underground,lateral roots(LRs)form the bulk of mature root systems,yet the ontogeny of the LR primordium(LRP)is not clear.In this study,we performed the single-cell RNA sequencing through the first four stages of LR formation in Arabidopsis.Our analysis led to a model in which a single group of precursor cells,with a cell identity different from their pericycle origins,rapidly reprograms and splits into a mixed ground tissue/stem cell niche fate and a vascular precursor fate.The ground tissue and stem cell niche fates soon separate and a subset of more specialized vascular cells form sucrose transporting phloem cells that appear to connect to the primary root.We did not detect cells resembling epidermis or root cap,suggesting that outer tissues may form later,preceding LR emergence.At this stage,some remaining initial precursor cells form the primordium flanks,while the rest create a reservoir of pluripotent cells that are able to replace the LR if damaged.Laser ablation of the central and lateral LRP regions showed that remaining cells restart the sequence of tissue initiation to form a LR.Collectively,our study reveals an ontological hierarchy for LR formation with an early and sequential split of main root tissues and stem cells.

关键词： organogenesis patterning stem cells single-cell RNA-seq cell fate regeneration

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Intraguild predation and competitive displacement between Nesidiocoris tenuis and Dicyphus maroccanus, two biological control agents in tomato pests

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Insect Science 2017年第5期24卷 809-817页

作者： Nadia G. Salas Gervassio Meritxell Perez-Hedo Maria G. Luna Alberto Urbaneja centro de Estudios Parasitol6gicos y de Vectores (CEPAVE -CCT La Plata- CONICET-UNLP) Boulevard 120 el 60 y 64 1900 La PlataArgentina Centro de Proteccion Vegetal y Biotecnologia Instituto Valenciano de Investigaciones Agrarias (IVlA) Unidad Asociada de Entomologia UJI-IVIA Carretera de Moncada - N&quera Km. 4.5 46113 Moncada Valencia Spain Unitat Associada d'Entomologia UJI-IVIA Departament de Ciencies Agr&ries i del Medi Natural Universitat Jaume I UJI Campus del Riu Sec E-12071 Castello de laPlana Spain

Dicyphus maroccanus Wagner and Nesidiocoris tenuis Reuter （Hemiptera： Miridae） are 2 biological control agents in tomatoes. Through the crop seasons, a natural shift in the occurrence of both mirids in favor ofN. tenuis has been observed at the end of the cropping cycle in eastern Spain. To better optimize their conservation, the reasons for the observed change, such as intraguild interactions （IGP） or the influence of environmental conditions, are worth elucidating. To do this, we first studied the IGP of adult females on heterospecific nymphs in the laboratory. We next studied exploitative competition between adults and nymphs of each species when feeding on Ephestia kueniella Zeller （Lepidoptera： Pyralidae） eggs in the laboratory. Finally, to analyze the competitive displacement between both mirids, we conducted a semifield experiment in which both predators were released together. All experiments were conducted at 2 temperature regimes （20 and 25~C）. Adult- to-nymph intraguild interactions occurred only at 25 ~C at very low levels, showing that N. tenuis attacked and consumed a greater proportion ofheterospecific nymphs. Nesidiocoris tenuis was a better competitor than D. maroccanus when feeding on the shared prey in the presence of its heterospecific nymph at 25 ~C. In semifield conditions, N. tenuis showed a competitive advantage over D. maroccanus at both temperatures. We conclude that there is not direct interference between both species, however, N. tenuis has a greater ability to outcompete, since it is best adapted to higher temperatures and it is able to remove food sources for D. maroccanus.

关键词： competition Mediterranean crops Miridae temperature tomato

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Spatiotemporal oxygen dynamics in young leaves reveal cyclic hypoxia in plants

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Molecular Plant 2024年第3期17卷 377-394页

作者： Paolo M.Triozzi Luca Brunello Giacomo Novi Gianmarco Ferri Francesco Cardarelli Elena Loreti Mariano Perales Pierdomenico Perata PlantLab Center of Plant SciencesSant'Anna School of Advanced Studies56010 PisaItaly centro de biotecnologia y Genomica de Plantas Universidad Politecnica de Madrid(UPM)-Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria(INIA-CSIC)Campus de Montegancedo UPMPozuelo de Alarcon28223 MadridSpain Fondazione Pisana per la Scienza 56017 PisaItaly Laboratorio NEST Scuola Normale SuperioreIstituto Nanoscienze-CNRPiazza S.Silvestro1256127 PisaItaly institute of Agricultural Biology and Biotechnology National Research Council56124 PisaItaly departamento de biotecnologia-Biologia vegetal Escuela Tecnica Superior de Ingenieria AgronomicaAlimentaria y de BiosistemasUniversidad Politecnica de Madrid(UPM)28040 Madrid.Spain

Oxygen is essential for plant growth and development.Hypoxia occurs in plants due to limited oxygen avail-abilityfollowing adverse environmental conditions as well inhypoxic niches in otherwisenormoxic environ-ments.However,the existence and functional integration of spatiotemporal oxygen dynamics with plant development remains unknown.In animal systems dynamic fluctuations in oxygen availability are known as cyclic hypoxia.In this study,we demonstrate that cyclic fluctuations in internal oxygen levels occur in young emerging leaves of Arabidopsis plants.Cyclic hypoxia in plants is based on a mechanism requiring the ETHyLENE RESPONSE FACTORS type VII(ERFVII)that are central components of the oxygen-sensing machinery in plants.The ERFVll-dependent mechanism allows precise adjustment of leaf growth in response to carbon status and oxygen availability within plant cells.This study thus establishes a functional connection between internal spatiotemporal oxygen dynamics and developmental processes of plants.

关键词： Arabidopsis hypoxia cyclic hypoxia leaf development oxygen-sensing mechanism ERFVII

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Role of 9-Lipoxygenase and α-Dioxygenase Oxylipin Pathways as Modulators of Local and Systemic defense

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Molecular Plant 2012年第4期5卷 914-928页

作者： Jorge Vicente Tomas Cascon Begonya Vicedo Pilar Garcia-Agustin Mats Hamberg Carmen Castresana department of Plant Molecular Genetics Centro National de Biotecnologia (CNB-CSIC) Darwin 3 28049 Madrid Spain Grupo de Bioquimica y biotecnologia vegetal Area de Fisiologfa Vegetal Departarnento de Ciencias Agrarias y del Medio Natural. ESTCE Universitat Jaume I Campus de Riu Sec. 12071 Castellon Spain Division of Physiological Chemistry II Department of Medical Biochemistry and Biophysics Karolinska Institutet S-171 77 Stockholm Sweden

Plant 9-1ipoxygenases （9-LOX） and α-dioxygenases （α-DOX） initiate the synthesis of oxylipins after bacterial infection. Here, the role of these enzymes in plants＇ defense was investigated using individual Arabidopsis thaliana Ioxl and doxl mutants and a double Ioxl doxl mutant. Studies with Pseudomonas syringae pv. tomato （Pst） revealed the enhanced susceptibility of Ioxl to the virulent strain Pst DC3000 and the partial impairment of Ioxl and doxl mutants to activate systemic acquired resistance. Notably, both defects were enhanced in the Ioxl doxl plants as compared with individual mutants. We found that pre-treatment with 9-LOX- and α-DOX-generated oxylipins protected plant tissues against bacterial infection. The strongest effect in this respect was exerted by 9-ketooctadecatrienoic acid （9-KOT）, which is produced from linolenic acid by 9-LOX. Quantification of 9-KOT revealed its accumulation after bacterial infection. The levels were reduced in Ioxl and Ioxl doxl plants but strongly increased in the doxl mutant due to metabolic interaction of the two pathways. Transcriptional analyses indicated that 9-KOT pre-treatment modifies hormone homeostasis during bacterial infection. The nature of the changes detected suggested that 9-KOT interferes with the hormonal changes caused by bacterial effectors. This notion was substantiated by the finding that 9-KOT failed to reduce the growth of PstDC3OOOhrpA, a mutant compromised in effector secretion, and of the avirulent strain Pst DC3000 avrRpml. Further support for the action of the 9-LOX- and α-DOX-oxylipin pathways as modulators of hormone homeostasis was the ob- servation that Ioxl doxl seedlings are hypersensitive to the growth-inhibitory effect of ABA and showed enhanced ac- tivation of ABA-inducible marker genes as compared with wild-type plants.

关键词： oxylipins plant defense ABA Arabidopsis.

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The FAIR Data Point:Interfaces and Tooling

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Data Intelligence 2023年第1期5卷 184-201页

作者： Oussama Mohammed Benhamed Kees Burger Rajaram Kaliyaperumal Luiz Olavo Bonino da Silva Santos Marek Suchánek Jan Slifka Mark D.Wilkinsoni departamento de biotecnologia-Biologia vegetal Escuela Tecnica Superior de Ingenieria AgronomicaAlimentaria y de BiosistemasCentro de Biotecnologia y Genomica de Plantas UPM-INIAUniversidad Politecnica de Madrid(UPM)-Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria(INIA)MadridES 28223Spain Leiden University Medical Center Leiden2333 ZCthe Netherlands University of Twente Enschede7513 GBthe Netherlands Czech Technical University in Prague PragueCZ 15000Czech Republic

While the FAIR Principles do not specify a technical solution for'FAIRness',it was clear from the outset of the FAIR initiative that it would be useful to have commodity software and tooling that would simplify the creation of FAIR-compliant resources.The FAIR Data Point is a metadata repository that follows the DCAT(2)schema,and utilizes the Linked Data Platform to manage the hierarchical metadata layers as LDP Containers.There has been a recent flurry of development activity around the FAIR Data Point that has significantly improved its power and ease-of-use.Here we describe five specific tools—an installer,a loader,two Webbased interfaces,and an indexer-aimed at maximizing the uptake and utility of the FAIR Data Point.

关键词： FAIR Data Linked data Semantic Web Metadata User interfaces Tooling Semantic query

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Arabidopsis SWC4 Binds DNA and Recruits the SWR1 Complex to Modulate Histone H2A.Z deposition at Key Regulatory Genes

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Molecular Plant 2018年第6期11卷 815-832页

作者： Angeles Gomez-Zambrano Pedro Crevillen Jose M. Franco-Zorrilla Juan A. Lopez Jordi Moreno-Romero Pawel Roszak Juan Santos-Gonzalez Silvia Jurado Jesus Vazquez Claudia Kohler Roberto Solano Manuel Pineiro Jose A. Jarillo centro de biotecnologia y Genomica de Plantas Universidad Politecnica de Madrid (UPM) - Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA) Campus Montegancedo UPM Pozuelo de Alarcon 28223 Madrid Spain Plant Molecular Genetics department and Genomics Unit Centro Nacional de Biotecnologia Consejo Superior de Investigaciones Cientfficas 28049 Madrid Spain Proteomics Unit Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) 28029 Madrid Spain department of Plant Biology Uppsala BioCenter Swedish University of Agricultural Sciences and Linnean Center for Plant Biology Uppsala 75652 Sweden Laboratory of Cardiovascular Proteomics Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) 28029 Madrid Spain Instituto de Bioquimica vegetal y Fotosintesis Consejo Superior de Investigaciones Cientfficas and Universidad de Sevilla 41092 Sevilla Spain Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB Campus UAB Bellaterra Barcelona Spain The Sainsbury Laboratory Cambridge CB2 1LR UK

deposition of the H2A.Z histone variant by the SWR1 complex （SWRI-C） in regulatory regions of specific loci modulates transcription. Characterization of mutations in Arabidopsis thaliana homologs of yeast SWRI-C has revealed a role for H2A.Z exchange in a variety of developmental processes. Nevertheless, the exact composition of plant SWRI-C and how it is recruited to target genes remains to be established. Here we show that SWC4, the Arabidopsis homolog of yeast SANT domain protein Swc4/Eaf2, is a DNA-binding protein that interacts with SWR1-C subunits. We demonstrate that the swc4-1 knockout mutant is embryo- lethal, while SWC4 RNAi knockdown lines display pleiotropic phenotypic alterations in vegetative and repro- ductive traits, including acceleration of flowering time, indicating that SWC4 controls post-embryonic processes. Transcriptomic analyses and genome-wide profiling of H2A.Z indicate that SWC4 represses tran- scription of a number of genes, including the floral integrator FT and key transcription factors, mainly by modulating H2A.Z deposition. Interestingly, SWC4 silencing does not affect H2A.Z deposition at the FLC locus nor expression of this gene, a master regulator of flowering previously shown to be controlled by SWR1-C. Importantly, we find that SWC4 recognizes specific AT-rich DNA elements in the chromatin regions of target genes and that SWC4 silencing impairs SWRI-C binding at FT. Collectively, our data suggest that SWC4 regulates plant growth and development by aiding SWR1-C recruitment and modulating H2A.Z deposition.

关键词： Arabidopsis SWC4 chromatin SWR1 complex H2A.Z deposition flowering time

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A Review on Genetically Modified Plants designed to Phytoremediate Polluted Soils： Biochemical Responses and International Regulation

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Pedosphere 2018年第5期28卷 697-712页

作者： Edgar VAZQUEZ-NUNEZ Julian M. PENA-CASTRO Fabian FERNANdeZ-LUQUENO Eduardo CEJUDO Maria G. de la ROSA-ALVAREZ Maria C. GARCIA-CASTANED departamento de Ingenierias Quimica Electronica y Biomedica Division de Ciencias e Ingenierlas Universidad de Guanajuato (UG) Campus Leon Loma del Bosque 103 Leon Gto. 37150 (Mexico) Laboratorio de Biotecnologla vegetal Instituto de Biotecnologia Universidad del Papaloapan Tuxtepec Oaxaca 68333 (Mexico) programa en Sustentabilidad de los Recursos Naturales y Eneryla Cinvestav Saltillo Industria Metalurgica 1062 Parque Industrial Saltillo-Ramos-Arizpe Ramos Arizpe Coahuila 25900 (Mexico) CONACyT Unidad de Ciencias del Agua (UCIA) Centro de Investigacion Cientifica de Yucatan A.C. Cancdn Quintana Roo 77500 (Mexico) Center for the Environmental Implications of Nanotechnology University of California at Los Angeles- University of Texas at El Paso 500 W University Ave El Paso 79968 (USA) CONACyT Universidad de Guanajuato Loma del Bosque 103 Leon Guanajuato 37150 (Mexico)

In recent years,there has been an increasing interest in finding sustainable strategies for the efficient removal of contaminants from soils.The objective of this review is to examine the biochemical principles of specific genetic modifications in plants,their applications in the field for specific contaminants as phytotechnologies,and their international regulation.In addition,the review presents some biological aspects of rhizosphere-related phenomena,the interactions of organic and inorganic pollutants with plants,and the performance of the phytotechnologies across the continents.During the last few decades,at least eight genera of genetically modified plants(GMPs)have been tested and used for soil remediation with outstanding results.Arabidopsis,Nicotiana,and Oryza are the plant genera most widely studied.Specific plant genes such as metal transporters,chelators,metallothioneins,phytochelatins,and oxygenases have been transferred to plants to improve the elimination of contaminants in soil.We discuss some important aspects of gene manipulation and its application for removal of diverse contaminants.A key challenge faced by phytotechnologies is the final disposal of the generated biomass,from a safety aspect.We argue that the commercial success of phytotechnologies depends on the generation of valuable biomass on contaminated land and its use for bioenergy generation.The use of such technologies would promote a broader understanding of the importance of plants,especially GMPs,in the environment and their contribution to environmental sustainability.

关键词：生物化学植物检验评论国际土壤设计修改遗传

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Rheostatic Control of ABA Signaling through HOS15-Mediated OST1 degradation

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Molecular Plant 2019年第11期12卷 1447-1462页

作者： Akhtar Ali Jae Kyoung Kim Masood Jan Haris Ali Khan Irfan Ullah Khan Mingzhe Shen Junghoon Park Chae Jin Lim Shah Hussain Dongwon Baek Kai Wang Woo Sik Chung Vicente Rubio Sang yeol Lee Zhizhong Gong Woe yeon Kim Ray ABressan Jose MPardo Dae-Jin yun department of Biomedical Science&Engineering Konkuk UniversitySeoul 05029South Korea department of Mathematical Sciences Korea Advanced Institute of Science and TechnologyDaejeon 34131Korea Division of Applied Life Science Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinju 660-701South Korea State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China centro Nacional de biotecnologia-CSIC Darwin 3.Campus de la UAM.Cantoblanco28049 MadridSpain department of Horticulture and Landscape Architecture Purdue University625 Agriculture Mall DriveWest LafayetteIN 47907-2010USA lnstituto de Bioquimica vegetal y Fotosintesis cicCartujaCSIC-Universidad de SevillaAmericoVespucio 49Sevilla 41092Spain

dehydrating stresses trigger the accumulation of abscisic acid(ABA),a key plant stress-signaling hormone that activates Snf1-Related Kinases(SnRK2s)to mount adaptive responses.However,the regulatory circuits that terminate the SnRK2s signal relay after acclimation or post-stress conditions remain to be defined.Here,we show that the desensitization of the ABA signal is achieved by the regulation of OST1(SnRK2.6)protein stability via the E3-ubiquitin ligase HOS15.Upon ABA signal,HOS15-induced degradation of OST1 is inhibited and stabilized OST1 promotes the stress response.When the ABA signal terminates,protein phosphatases ABI1/2 promote rapid degradation of OST1 via HOS15.Notably,we found that even in the presence of ABA,OST1 levels are also depleted within hours of ABA signal onset.The unexpected dynamics of OST1 abundance are then resolved by systematic mathematical modeling,demonstrating a desensitizing feedback loop by which OST1-induced upregulation of ABI1/2 leads to the degradation of OST1.This model illustrates the complex rheostat dynamics underlying the ABA-induced stress response and desensitization.

关键词： ABA signaling drought stress HOS15 OST1 ABI1/2 protein degradation and stability

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