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Rollano-Peñaloza OM, Palma-Encinas V, Widell S, Mollinedo P, Rasmusson AG. The Disease Progression and Molecular Defense Response in Chenopodium Quinoa Infected with Peronospora Variabilis, the Causal Agent of Quinoa Downy Mildew. Plants (Basel) 2022; 11:2946. [PMID: 36365398 PMCID: PMC9654897 DOI: 10.3390/plants11212946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/05/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Downy mildew disease, caused by the biotrophic oomycete Peronospora variabilis, is the largest threat to the cultivation of quinoa (Chenopodium quinoa Willd.) in the Andean highlands, and occurs worldwide. However, so far, no molecular study of the quinoa-Peronospora interaction has been reported. Here, we developed tools to study downy mildew disease in quinoa at the gene expression level. P. variabilis was isolated and maintained, allowing the study of downy mildew disease progression in two quinoa cultivars under controlled conditions. Quinoa gene expression changes induced by P. variabilis were analyzed by qRT-PCR, for quinoa homologues of A. thaliana pathogen-associated genes. Overall, we observed a slower disease progression and higher tolerance in the quinoa cultivar Kurmi than in the cultivar Maniqueña Real. The quinoa orthologs of putative defense genes such as the catalase CqCAT2 and the endochitinase CqEP3 showed no changes in gene expression. In contrast, quinoa orthologs of other defense response genes such as the transcription factor CqWRKY33 and the chaperone CqHSP90 were significantly induced in plants infected with P. variabilis. These genes could be used as defense response markers to select quinoa cultivars that are more tolerant to P. variabilis infection.
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Affiliation(s)
- Oscar M. Rollano-Peñaloza
- Department of Biology, Lund University, SE-223 62 Lund, Sweden
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, La Paz P.O. Box 12958, Bolivia
| | - Valeria Palma-Encinas
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, La Paz P.O. Box 12958, Bolivia
| | - Susanne Widell
- Department of Biology, Lund University, SE-223 62 Lund, Sweden
| | - Patricia Mollinedo
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, La Paz P.O. Box 12958, Bolivia
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Mangelson H, Jarvis DE, Mollinedo P, Rollano‐Penaloza OM, Palma‐Encinas VD, Gomez‐Pando LR, Jellen EN, Maughan PJ. The genome of Chenopodium pallidicaule: An emerging Andean super grain. Appl Plant Sci 2019; 7:e11300. [PMID: 31832282 PMCID: PMC6858295 DOI: 10.1002/aps3.11300] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/24/2019] [Indexed: 05/28/2023]
Abstract
PREMISE Cañahua is a semi-domesticated crop grown in high-altitude regions of the Andes. It is an A-genome diploid (2n = 2x = 18) relative of the allotetraploid (AABB) Chenopodium quinoa and shares many of its nutritional benefits. Cañahua seed contains a complete protein, a low glycemic index, and offers a wide variety of nutritionally important vitamins and minerals. METHODS The reference assembly was developed using a combination of short- and long-read sequencing techniques, including multiple rounds of Hi-C-based proximity-guided assembly. RESULTS The final assembly of the ~363-Mbp genome consists of 4633 scaffolds, with 96.6% of the assembly contained in nine scaffolds representing the nine haploid chromosomes of the species. Repetitive element analysis classified 52.3% of the assembly as repetitive, with the most common repeat identified as long terminal repeat retrotransposons. MAKER annotation of the final assembly yielded 22,832 putative gene models. DISCUSSION When compared with quinoa, strong patterns of synteny support the hypothesis that cañahua is a close A-genome diploid relative, and thus potentially a simplified model diploid species for genetic analysis and improvement of quinoa. Resequencing and phylogenetic analysis of a diversity panel of cañahua accessions suggests that coordinated efforts are needed to enhance genetic diversity conservation within ex situ germplasm collections.
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Affiliation(s)
- Hayley Mangelson
- Department of Plant and Wildlife SciencesBrigham Young University5144 LSBProvoUtah84602USA
| | - David E. Jarvis
- Department of Plant and Wildlife SciencesBrigham Young University5144 LSBProvoUtah84602USA
| | - Patricia Mollinedo
- Institute of Natural Product ResearchUniversidad Mayor de San AndrésLa PazBolivia
| | | | | | - Luz Rayda Gomez‐Pando
- Departamento de FitotecniaFacultad de AgronomíaUniversidad Nacional Agraria de La MolinaLa MolinaPeru
| | - Eric N. Jellen
- Department of Plant and Wildlife SciencesBrigham Young University5144 LSBProvoUtah84602USA
| | - Peter J. Maughan
- Department of Plant and Wildlife SciencesBrigham Young University5144 LSBProvoUtah84602USA
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Talamillo A, Grande L, Ruiz-Ontañon P, Velasquez C, Mollinedo P, Torices S, Sanchez-Gomez P, Aznar A, Esparis-Ogando A, Lopez-Lopez C, Lafita C, Berciano MT, Montero JA, Vazquez-Barquero A, Segura V, Villagra NT, Pandiella A, Lafarga M, Leon J, Martinez-Climent JA, Sanz-Moreno V, Fernandez-Luna JL. ODZ1 allows glioblastoma to sustain invasiveness through a Myc-dependent transcriptional upregulation of RhoA. Oncogene 2017; 36:1733-1744. [PMID: 27641332 DOI: 10.1038/onc.2016.341] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 08/01/2016] [Accepted: 08/10/2016] [Indexed: 02/06/2023]
Abstract
Long-term survival remains low for most patients with glioblastoma (GBM), which reveals the need for markers of disease outcome and novel therapeutic targets. We describe that ODZ1 (also known as TENM1), a type II transmembrane protein involved in fetal brain development, plays a crucial role in the invasion of GBM cells. Differentiation of glioblastoma stem-like cells drives the nuclear translocation of an intracellular fragment of ODZ1 through proteolytic cleavage by signal peptide peptidase-like 2a. The intracellular fragment of ODZ1 promotes cytoskeletal remodelling of GBM cells and invasion of the surrounding environment both in vitro and in vivo. Absence of ODZ1 by gene deletion or downregulation of ODZ1 by small interfering RNAs drastically reduces the invasive capacity of GBM cells. This activity is mediated by an ODZ1-triggered transcriptional pathway, through the E-box binding Myc protein, that promotes the expression and activation of Ras homolog family member A (RhoA) and subsequent activation of Rho-associated, coiled-coil containing protein kinase (ROCK). Overexpression of ODZ1 in GBM cells reduced survival of xenografted mice. Consistently, analysis of 122 GBM tumour samples revealed that the number of ODZ1-positive cells inversely correlated with overall and progression-free survival. Our findings establish a novel marker of invading GBM cells and consequently a potential marker of disease progression and a therapeutic target in GBM.
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Affiliation(s)
- A Talamillo
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - L Grande
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - P Ruiz-Ontañon
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - C Velasquez
- Servicio de Neurocirugía, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - P Mollinedo
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - S Torices
- Unidad de Genética, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - P Sanchez-Gomez
- Unidad de Neuro-Oncología, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - A Aznar
- Centro para la Investigación Médica Aplicada (CIMA), Pamplona, Spain
| | - A Esparis-Ogando
- Centro de Investigación del Cáncer (CSIC-USAL), Salamanca, Spain
| | - C Lopez-Lopez
- Servicio de Oncología Médica, Hospital Valdecilla-IDIVAL, Santander, Spain
| | - C Lafita
- Instituto de Biomedicina y Biotecnología de Cantabria (IBBTEC), CSIC-Universidad de Cantabria, Santander, Spain
| | - M T Berciano
- Departamento de Anatomía y Biología Celular, Universidad de Cantabria, Santander, Spain
| | - J A Montero
- Departamento de Anatomía y Biología Celular, Universidad de Cantabria, Santander, Spain
| | | | - V Segura
- Centro para la Investigación Médica Aplicada (CIMA), Pamplona, Spain
| | - N T Villagra
- Servicio de Anatomía Patológica, Hospital Valdecilla and Instituto de Investigación Valdecilla (IDIVAL), Santander, Spain
| | - A Pandiella
- Centro de Investigación del Cáncer (CSIC-USAL), Salamanca, Spain
| | - M Lafarga
- Departamento de Anatomía y Biología Celular, Universidad de Cantabria, Santander, Spain
| | - J Leon
- Instituto de Biomedicina y Biotecnología de Cantabria (IBBTEC), CSIC-Universidad de Cantabria, Santander, Spain
| | | | - V Sanz-Moreno
- Randall Division of Cell and Molecular Biophysics, School of Biomedical and Health Sciences, King's College London, London, UK
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Mollinedo P, Vila JL, Arando H, Sauvain M, Deharo E, Bravo JA. Anti-infective assessment of Senecio smithioides (Asteraceae) and isolation of 9-oxoeuryopsin, a furanoeremophilane-type sesquiterpene with antiplasmodial activity. Nat Prod Res 2015; 30:2594-2597. [DOI: 10.1080/14786419.2015.1115994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Patricia Mollinedo
- Department of Chemistry, Laboratorio de Fitoquímica, Instituto de Investigaciones en Productos Naturales, Universidad Mayor de San Andrés, La Paz, Bolivia
- Laboratorio de Farmacognosia, Instituto Boliviano de Biología de Altura, Universidad Mayor de San Andrés, Calle Claudio Sanjinés frente al Instituto del Tórax, Complejo Hospitalario de Miraflores, La Paz, Bolivia
| | - José L. Vila
- Department of Chemistry, Laboratorio de Fitoquímica, Instituto de Investigaciones en Productos Naturales, Universidad Mayor de San Andrés, La Paz, Bolivia
| | - Hugo Arando
- Facultad de Ciencias Puras, Carrera de Química, Universidad Autónoma Tomas Frías, Potosí, Bolivia
| | - Michel Sauvain
- Laboratoire de Pharmacochimie des Substances Naturelles et Pharmacophores Redox, UMR 152 IRD-UPS, Université Paul Sabatier, Toulouse Cedex, France
- Institut de Recherche pour le Développement, UMR 152 IRD-UPS, Mission Pérou, Lima, Peru
| | - Eric Deharo
- Laboratoire de Pharmacochimie des Substances Naturelles et Pharmacophores Redox, UMR 152 IRD-UPS, Université Paul Sabatier, Toulouse Cedex, France
- Institut de Recherche pour le Développement, UMR 152 IRD-UPS, Mission Pérou, Lima, Peru
| | - José A. Bravo
- Department of Chemistry, Laboratorio de Fitoquímica, Instituto de Investigaciones en Productos Naturales, Universidad Mayor de San Andrés, La Paz, Bolivia
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Almanza GR, Quispe R, Mollinedo P, Rodrigo G, Fukushima O, Villagomez R, Akesson B, Sterner O. Antioxidant and antimutagenic polyisoprenylated benzophenones and xanthones from Rheedia acuminata. Nat Prod Commun 2011; 6:1269-1274. [PMID: 21941896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
Dichloromethane extract of the stem bark of Rheedia acuminata yielded three benzophenones with antioxidant activity, the new one named acuminophenone A (1), guttiferone K (2) and isoxanthochymol (3), along with the known xanthones formoxanthone C (4) and macluraxanthone (5). The structures were established through interpretation of their spectroscopic data, the stereochemistry of compounds (1) and (2) were resolved by experimental and computational experiments and their antioxidant activities were measured using the DPPH, ABTS and TEAC assays. The antioxidant results showed that metabolites 1, 4 and 5 had a better antioxidant activity than the reference compound quercetin. In addition, we evaluate the mutagenicity and antimutagenicity of the CH2Cl2 extract as well as of the free radical scavenger compounds 1, 4 and 5 by the AMES Salmonella/microsomal test. No mutagenicity was found in the CH2Cl2 extract using Salmonella typhimurium strains TA98, TA100, TA102, TA1537 and TA1538, with or without S9 metabolic activation. The pure compounds neither showed mutagenicity in TA 102 strain and the most important result was the strong reduction of mutagenic effect induced by hydrogen peroxide in S. typhimurium TA102, with or without S9, showed by the compounds 1 (more than 93%) and 4 (more than 88%) at 0.02 microg/plate.
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Affiliation(s)
- Giovanna R Almanza
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, CP 303, La Paz, Bolivia.
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Almanza GR, Quispe R, Mollinedo P, Rodrigo G, Fukushima O, Villagomez R, Akesson B, Sterner O. Antioxidant and Antimutagenic Polyisoprenylated Benzophenones and Xanthones from Rheedia acuminata. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dichloromethane extract of the stem bark of Rheedia acuminata yielded three benzophenones with antioxidant activity, the new one named acuminophenone A (1), guttiferone K (2) and isoxanthochymol (3), along with the known xanthones formoxanthone C (4) and macluraxanthone (5). The structures were established through interpretation of their spectroscopic data, the stereochemistry of compounds (1) and (2) were resolved by experimental and computational experiments and their antioxidant activities were measured using the DPPH, ABTS and TEAC assays. The antioxidant results showed that metabolites 1, 4 and 5 had a better antioxidant activity than the reference compound quercetin. In addition, we evaluate the mutagenicity and antimutagenicity of the CH2Cl2 extract as well as of the free radical scavenger compounds 1, 4 and 5 by the AMES Salmonella/microsomal test. No mutagenicity was found in the CH2Cl2 extract using Salmonella typhimurium strains TA98, TA100, TA102, TA1537 and TA1538, with or without S9 metabolic activation. The pure compounds neither showed mutagenicity in TA 102 strain and the most important result was the strong reduction of mutagenic effect induced by hydrogen peroxide in S. typhimurium TA 102, with or without S9, showed by the compounds 1 (more than 93%) and 4 (more than 88%) at 0.02 μg/plate.
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Affiliation(s)
- Giovanna R. Almanza
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, CP 303, La Paz, Bolivia
| | - Raúl Quispe
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, CP 303, La Paz, Bolivia
| | - Patricia Mollinedo
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, CP 303, La Paz, Bolivia
- Department of Organic Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden
| | - Gloria Rodrigo
- Department of Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden
- Instituto de Biologia Molecular y Biotecnologia, Universidad Mayor de San Andrés, La Paz, Bolivia
| | - Odette Fukushima
- Instituto de Biologia Molecular y Biotecnologia, Universidad Mayor de San Andrés, La Paz, Bolivia
| | - Rodrigo Villagomez
- Instituto de Investigaciones Químicas, Universidad Mayor de San Andrés, CP 303, La Paz, Bolivia
- Department of Organic Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden
| | - Bjorn Akesson
- Department of Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden
| | - Olov Sterner
- Department of Organic Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden
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Muñoz V, Sauvain M, Mollinedo P, Callapa J, Rojas I, Gimenez A, Valentin A, Mallié M. Antimalarial activity and cytotoxicity of (-)-roemrefidine isolated from the stem bark of Sparattanthelium amazonum. Planta Med 1999; 65:448-449. [PMID: 10418333 DOI: 10.1055/s-2006-960808] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
(-)-Roemrefidine, an aporphine alkaloid isolated from Sparattanthelium amazonum Martius (Hernandiaceae) a vine from Bolivia, has been found to be active against both resistant and sensitive strains of Plasmodium falciparum in vitro and against P. berghei in mice. The compound demonstrated no cytotoxic activity against three cell lines (KB, HEp-2 and HeLa).
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