In the Name of the Beneficent, the Merciful
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Candidate Gene Identification from the Wheat QTL-2DL for Resistance Against Fusarium Head Blight Based on Metabolo-Genomics Approach
Candidate gene identification from the wheat QTL-2DL for resistance against Fusarium head blight based on metabolo-genomics approach Udaykumar Kage Department of Plant Science McGill University, Montreal, Canada August 2016 A thesis submitted to the McGill University in partial fulfillment of the requirements of the degree of Doctor of Philosophy ©Udaykumar Kage (2016) i Dedicated to my beloved parents ii TABLE OF CONTENTS TABLE OF CONTENTS………………………………………………………………………...iii LIST OF TABLES……………………………………………………………………………...viii LIST OF FIGURES………………………………………………………………………………ix LIST OF APPENDICES…………………………………………………………………………xv LIST OF ABBREVIATIONS…………………………………………………………………...xvi ABSTRACT…………………………………………………………………………………...xviii ACKNOWLEDGEMENT……………………………………………………………………...xxi PREFACE AND CONTRIBUTION OF THE AUTHORS……………………………………..01 PREFACE……………………………………………………………………………………......01 CONTRIBUTION OF THE AUTHORS………………………………………………………...02 CHAPTER I: GENERAL INTRODUCTION…………………………………………………...03 GENERAL HYPOTHESIS……………………………………………………………………...07 GENERAL OBJECTIVES……………………………………………………………………....07 CHAPTER II: REVIEW OF THE LITERATURE……………………………………………...08 2.1 Fusarium head blight of wheat at a glance…………………………………………………...08 2.1.1 Fusarium head blight epidemiology and impact on wheat production…………………08 2.1.2 FHB management practices ……………………………………………………….……10 2.1.3 FHB management through breeding for disease resistance…………………………….11 2.1.3.1 Types of Fusarium head blight resistance………………………………………….12 2.1.3.2 Molecular markers and QTL for FHB resistance……………………………….…13 -
Phytochem Referenzsubstanzen
High pure reference substances Phytochem Hochreine Standardsubstanzen for research and quality für Forschung und management Referenzsubstanzen Qualitätssicherung Nummer Name Synonym CAS FW Formel Literatur 01.286. ABIETIC ACID Sylvic acid [514-10-3] 302.46 C20H30O2 01.030. L-ABRINE N-a-Methyl-L-tryptophan [526-31-8] 218.26 C12H14N2O2 Merck Index 11,5 01.031. (+)-ABSCISIC ACID [21293-29-8] 264.33 C15H20O4 Merck Index 11,6 01.032. (+/-)-ABSCISIC ACID ABA; Dormin [14375-45-2] 264.33 C15H20O4 Merck Index 11,6 01.002. ABSINTHIN Absinthiin, Absynthin [1362-42-1] 496,64 C30H40O6 Merck Index 12,8 01.033. ACACETIN 5,7-Dihydroxy-4'-methoxyflavone; Linarigenin [480-44-4] 284.28 C16H12O5 Merck Index 11,9 01.287. ACACETIN Apigenin-4´methylester [480-44-4] 284.28 C16H12O5 01.034. ACACETIN-7-NEOHESPERIDOSIDE Fortunellin [20633-93-6] 610.60 C28H32O14 01.035. ACACETIN-7-RUTINOSIDE Linarin [480-36-4] 592.57 C28H32O14 Merck Index 11,5376 01.036. 2-ACETAMIDO-2-DEOXY-1,3,4,6-TETRA-O- a-D-Glucosamine pentaacetate 389.37 C16H23NO10 ACETYL-a-D-GLUCOPYRANOSE 01.037. 2-ACETAMIDO-2-DEOXY-1,3,4,6-TETRA-O- b-D-Glucosamine pentaacetate [7772-79-4] 389.37 C16H23NO10 ACETYL-b-D-GLUCOPYRANOSE> 01.038. 2-ACETAMIDO-2-DEOXY-3,4,6-TRI-O-ACETYL- Acetochloro-a-D-glucosamine [3068-34-6] 365.77 C14H20ClNO8 a-D-GLUCOPYRANOSYLCHLORIDE - 1 - High pure reference substances Phytochem Hochreine Standardsubstanzen for research and quality für Forschung und management Referenzsubstanzen Qualitätssicherung Nummer Name Synonym CAS FW Formel Literatur 01.039. -
Etude Du Potentiel Herbicide Des Extraits Végétaux Des Espèces Xero-Halophytes Tunisiennes Et Détermination De Leurs Modes D’Action
Etude du potentiel herbicide des extraits végétaux des espèces xero-halophytes Tunisiennes et détermination de leurs modes d’action Promoteurs : Pr Haissam Jijakli – Pr Riadh Ksouri Année civile : 2020 COMMUNAUTÉ FRANÇAISE DE BELGIQUE UNIVERSITÉ DE LIÈGE - GEMBLOUX AGRO-BIO TECH Etude du potentiel herbicide des extraits végétaux des espèces xero-halophytes Tunisiennes et détermination de leurs modes d’action Sofiene Ben Kaab Dissertation originale présentée en vue de l’obtention du grade de docteur en Sciences agronomiques et ingénierie biologique Promoteurs : Pr Haissam Jijakli – Pr Riadh Ksouri Année civile : 2020 © Ben kaab sofiene, février 2020 Résumé Les adventices constituent une contrainte majeure pour l’agriculture. En effet, connues par leur pouvoir allélopathique important, ces adventices peuvent causer des dommages économiques sévères atteignant 34% dans les grandes cultures. Dans cette optique, suite à la forte limitation des herbicides chimiques sur le marché et plus spécifiquement le retrait progressif du glyphosate, la demande du public pour des herbicides alternatifs d'origine biologique et davantage respectueux de l’environnement, est croissante. Cette thèse s’inscrit dans la politique de minimiser l’utilisation des herbicides chimiques principalement le glyphosate. Les travaux de recherche effectué dans le cadre de cette thèse ont permis de sélectionner 2 extraits végétaux à forte activité herbicide à savoir, l’extrait phénoliques de Cynara cardunculus et l’huile essentielle de Rosmarinus officinalis. Par la suite nous avons procédé à un fractionnement bio-guidé afin de déterminer les composés bioactifs majoritaires. Ainsi, la myricitrine extraite de C. cardunculus a été identifiée pour la première fois comme molécule à potentiel herbicide. Ensuite, nous avons élaboré une nouvelle formulation à base de ces deux extraits végétaux sélectionnés qui pour la première fois améliore en même temps leurs efficacités et leurs stabilités. -
Wine Phenolic Compounds Differently Affect the Host-Killing Activity of Two Lytic Bacteriophages Infecting the Lactic Acid Bacte
viruses Article Wine Phenolic Compounds Differently Affect the Host-Killing Activity of Two Lytic Bacteriophages Infecting the Lactic Acid Bacterium Oenococcus oeni Cécile Philippe 1, Amel Chaïb 1, Fety Jaomanjaka 1 , Stéphanie Cluzet 1, Aurélie Lagarde 1, Patricia Ballestra 1, Alain Decendit 1,Mélina Petrel 2, Olivier Claisse 1,3 , Adeline Goulet 4,5, Christian Cambillau 4,5 and Claire Le Marrec 1,6,* 1 EA4577-USC1366 INRAE, Unité de Recherche OEnologie, Université de Bordeaux, Institut des Sciences de la Vigne et du Vin (ISVV), F-33140 Villenave d’Ornon, France; [email protected] (C.P.); [email protected] (A.C.); [email protected] (F.J.); [email protected] (S.C.); [email protected] (A.L.); [email protected] (P.B.); [email protected] (A.D.); [email protected] (O.C.) 2 Bordeaux Imaging Center, UMS3420 CNRS-INSERM, University Bordeaux, F-33000 Bordeaux, France; [email protected] 3 INRAE, ISVV, USC 1366 Oenologie, F-33140 Villenave d’Ornon, France 4 Architecture et Fonction des Macromolécules Biologiques, Aix-Marseille Université, Campus de Luminy, F-13020 Marseille, France; [email protected] (A.G.); [email protected] (C.C.) 5 Architecture et Fonction des Macromolécules Biologiques, Centre National de la Recherche Scientifique (CNRS), Campus de Luminy, F-13020 Marseille, France 6 Bordeaux INP, ISVV, EA4577 OEnologie, F-33140 Villenave d’Ornon, France * Correspondence: clehenaff@enscbp.fr; Tel.: +33-55-757-5831 Received: 29 October 2020; Accepted: 14 November 2020; Published: 17 November 2020 Abstract: To provide insights into phage-host interactions during winemaking, we assessed whether phenolic compounds modulate the phage predation of Oenococcus oeni. -
Developing Drug and Gene Therapies for Peroxisome Biogenesis Disorders of the Zellweger Spectrum
Developing drug and gene therapies for peroxisome biogenesis disorders of the Zellweger Spectrum Catherine Argyriou Department of Human Genetics McGill University, Montréal, Canada June 2018 A thesis submitted to McGill University in partial fulfillment of the requirements of the degree of Doctor of Philosophy © Catherine Argyriou 2018 ABSTRACT Zellweger spectrum disorder (ZSD) usually results from biallelic mutations in PEX genes required for peroxisome biogenesis. PEX1-G843D is a common hypomorphic allele associated with milder disease. We previously showed that fibroblasts from patients with a PEX1-G843D allele recovered peroxisome functions when cultured with the nonspecific chaperone betaine and flavonoid acacetin diacetate. To identify more effective flavonoids for preclinical trials, we compared 54 flavonoids using our cell-based peroxisomal assays. Diosmetin showed the most promising combination of potency and efficacy; co-treatments of diosmetin and betaine showed the most robust additive effects. This was confirmed by 5 independent assays in primary PEX1-G843D patient cells. Neither agent was active in PEX1 null cells. I propose that diosmetin acts as a pharmacological chaperone to improve stability, conformation, and function of PEX1/PEX6 exportomer complexes. All individuals with a PEX1-G843D allele develop a retinopathy that progresses to blindness. To investigate pathophysiology and identify endpoints for experimental trials, I used the knock-in mouse model for the equivalent human mutation, PEX1-G844D. I characterized the progression of retinopathy and found reduced cone cell function and number early in life with more gradual deterioration of rod cell function. Electron microscopy at later stage retinopathy showed disorganization of photoreceptor inner segments and enlarged mitochondria. As retino-cortical function was relatively well-preserved, I propose that the vision defect in the Pex1-G844D mouse is primarily at the retinal level. -
Phytochemistry and Biological Activities of Werneria and Xenophyllum Species
BOLETÍN LATINOAMERICANO Y DEL CARIBE DE PLANTAS MEDICINALES Y AROMÁTICAS 18 (3): 223 - 238 (2019) © / ISSN 0717 7917 / www.blacpma.usach.cl Revisión | Review Phytochemistry and Biological Activities of Werneria and Xenophyllum species [Fitoquímica y actividades biológicas de especies de Werneria y Xenophyllum] Olga Lock1 & Rosario Rojas2 1Departamento de Química, Pontificia Universidad Católica del Perú, Lima, Perú 2Unidad de Investigación en Productos Naturales, Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Perú Contactos | Contacts: Olga LOCK - E-mail address: [email protected] Contactos | Contacts: Rosario ROJAS - E-mail address: [email protected] Abstract: Plants of the genera Werneria (Asteraceae) and Xenophyllum (genus extracted from Werneria) are used in traditional medicine of Latin America for the treatment of mountain sickness, hypertension and gastrointestinal disorders. Only a small number of species of these genera have been studied, leading to the isolation of compounds belonging to the classes of benzofurans, chromenes, acetophenones, coumarates, diterpenes and pyrrolizidine alkaloids. Some of the plant extracts and/or compounds have shown antimicrobial, anti-HIV, hypotensive and photoprotective activities. Keywords: Werneria; Xenophyllum; Medicicinal plants; Mountain sickness; Hypertension. Resumen: Las plantas de los géneros Werneria (Asteraceae) y Xenophyllum (género extraido de Werneria) son usadas en la medicina tradicional de América Latina para el tratamiento del mal de montaña, hipertensión y desórdenes gastrointestinales. Solo un pequeño número de especies de estos géneros ha sido investigado, lográndose aislar compuestos que pertenecen a las clases de benzofuranos, cromenos, acetofenonas, cumaratos, diterpenos y alcaloides pirrolizidínicos. Algunos de los extractos y/o compuestos de dichas plantas han mostrado actividades antimicrobianas, anti-HIV, hipotensoras y fotoprotectoras. -
Asteraceae)§ Karin M.Valant-Vetscheraa and Eckhard Wollenweberb,*
Chemodiversity of Exudate Flavonoids in Seven Tribes of Cichorioideae and Asteroideae (Asteraceae)§ Karin M.Valant-Vetscheraa and Eckhard Wollenweberb,* a Department of Plant Systematics and Evolution Ð Comparative and Ecological Phytochemistry, University of Vienna, Rennweg 14, A-1030 Wien, Austria b Institut für Botanik der TU Darmstadt, Schnittspahnstrasse 3, D-64287 Darmstadt, Germany. E-mail: [email protected] * Author for correspondence and reprint requests Z. Naturforsch. 62c, 155Ð163 (2007); received October 26/November 24, 2006 Members of several genera of Asteraceae, belonging to the tribes Mutisieae, Cardueae, Lactuceae (all subfamily Cichorioideae), and of Astereae, Senecioneae, Helenieae and Helian- theae (all subfamily Asteroideae) have been analyzed for chemodiversity of their exudate flavonoid profiles. The majority of structures found were flavones and flavonols, sometimes with 6- and/or 8-substitution, and with a varying degree of oxidation and methylation. Flava- nones were observed in exudates of some genera, and, in some cases, also flavonol- and flavone glycosides were detected. This was mostly the case when exudates were poor both in yield and chemical complexity. Structurally diverse profiles are found particularly within Astereae and Heliantheae. The tribes in the subfamily Cichorioideae exhibited less complex flavonoid profiles. Current results are compared to literature data, and botanical information is included on the studied taxa. Key words: Asteraceae, Exudates, Flavonoids Introduction comparison of accumulation trends in terms of The family of Asteraceae is distributed world- substitution patterns is more indicative for che- wide and comprises 17 tribes, of which Mutisieae, modiversity than single compounds. Cardueae, Lactuceae, Vernonieae, Liabeae, and Earlier, we have shown that some accumulation Arctoteae are grouped within subfamily Cichori- tendencies apparently exist in single tribes (Wol- oideae, whereas Inuleae, Plucheae, Gnaphalieae, lenweber and Valant-Vetschera, 1996). -
Identifying Bioactive Phytochemicals in Spent Coffee Grounds for Cosmetic Application Through Global Metabolite Analysis
IDENTIFYING BIOACTIVE PHYTOCHEMICALS IN SPENT COFFEE GROUNDS FOR COSMETIC APPLICATION THROUGH GLOBAL METABOLITE ANALYSIS _______________________________________ A Thesis Presented to the Faculty of the Graduate School University of Missouri-Columbia _______________________________________________________ In Partial Fulfillment of the Requirements for the Degree Master of Science _____________________________________________________ by JIHYUN PARK Dr. Chung-Ho Lin, Thesis Supervisor DECEMBER 2017 The undersigned, appointed by the dean of the Graduate School, have examined the thesis entitled: IDENTIFYING BIOACTIVE PHYTOCHEMICALS IN SPENT COFFEE GROUNDS FOR COSMETIC APPLICATION THROUGH GLOBAL METABOLITE ANALYSIS presented by JIHYUN PARK a candidate for the degree of Master of Science and hereby certify that in their opinion it is worthy of acceptance Professor Chung-Ho Lin Professor Shibu Jose Professor Gary Stacey Professor Minviluz Stacey ACKNOWLEDGEMENTS I would like to thank my advisor, Professor Chung-Ho Lin about his guidance with huge effort, and the Center for Agroforestry, without their considerable assistant, I could not have done this research. Conducting this project provided me a great opportunity to meet and work with many people who have a comprehensive mind and passion. It is very pleasure for me to offer thanks to them. In addition, my thesis committee members, Dr. Shibu Jose, Gary Stacey, and Bing Stacey, were the most responsible professors in their field and they leading me to focus on this research. They realized the novelty of my thesis topics paying attention to this project and encouraging me to accomplish the experiment on time. Also I would like to say thanks to Nahom Taddese Ghile who gave me the first help beginning this project and the laboratory members Van Ho, Danh Vu, Phuc Vo, who provided assistance in several steps of my experiment with familiarity. -
Synthesis of Flavonoid Sulfates. II. the Use of Aryl Sulfatase in the Synthesis of Flavonol-3-Sulfates*
Synthesis of Flavonoid Sulfates. II. The Use of Aryl Sulfatase in the Synthesis of Flavonol-3-sulfates* Denis Barron** and Ragai K. Ibrahim Plant Biochemistry Laboratory, Department of Biology, Concordia University, 1455 De Maisonneuve Boulevard West, Montreal, Quebec, Canada H3G 1M8 Z. Naturforsch. 43c, 625-630 (1988); received February 23/May 17, 1988 Flavonol Sulfate Esters, Synthesis, 13C NMR, FAB-MS, UV Spectra The rates of aryl sulfatase hydrolysis of several 7-, 4'- and 3-sulfated flavonoids were compared and found to follow the order 7 or 4' >» 3. The complete resistance of the 3-sulfate ester to enzyme hydrolysis provided a unique and convenient method for the synthesis of a number of naturally occurring flavonol-3-sulfates from the corresponding higher sulfated analogs in quanti- tative yield. Introduction famic acid method [24] which gives rise to complex There has been an increasing number of reports in mixture of flavonoid sulfate isomers [25]. Although recent years on the natural occurrence of flavonoid flavonol-3-sulfates represent one of the most com- sulfates in the plant kingdom [2—21]. This consider- mon groups of naturally occurring sulfate esters [6, able interest seems to be related to their suggested 7], however, no method is yet available for the role in the detoxification of excess sulfate in response specific sulfation of position 3, due to its chelation to high sulfur environment [2], From structural point with the neighbouring carbonyl group. The fact that of view, the naturally occurring flavonoid sulfates are the 3-sulfate is the only group resistant to hydrolysis derivatives of common hydroxyflavones (Fig. -
Switchgrass (Panicum Virgatum) Possesses a Divergent Family of Cinnamoyl Coa Reductases with Distinct Biochemical Properties
New Phytologist Research Switchgrass (Panicum virgatum) possesses a divergent family of cinnamoyl CoA reductases with distinct biochemical properties Luis L. Escamilla-Trevin˜o1,2, Hui Shen1,2, Srinivasa Rao Uppalapati1, Tui Ray1, Yuhong Tang1,2, Timothy Hernandez1,2, Yanbin Yin2,3, Ying Xu2,3 and Richard A. Dixon1,2 1Plant Biology Division, Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway, Ardmore, OK 73401, USA; 2US Department of Energy BioEnergy Science Center (BESC); 3Department of Biochemistry and Molecular Biology and Institute of Bioinformatics, University of Georgia, 120 Green Street, Athens, GA 30602, USA Summary Author for correspondence: • The down-regulation of enzymes of the monolignol pathway results in reduced Richard A. Dixon recalcitrance of biomass for lignocellulosic ethanol production. Cinnamoyl CoA Tel: +1 580 224 6601 reductase (CCR) catalyzes the first step of the phenylpropanoid pathway specifi- Email: [email protected] cally dedicated to monolignol biosynthesis. However, plants contain multiple CCR- Received: 12 June 2009 like genes, complicating the selection of lignin-specific targets. This study was Accepted: 27 July 2009 undertaken to understand the complexity of the CCR gene family in tetraploid switchgrass (Panicum virgatum) and to determine the biochemical properties of New Phytologist (2010) 185: 143–155 the encoded proteins. doi: 10.1111/j.1469-8137.2009.03018.x • Four switchgrass cDNAs (most with multiple variants) encoding putative CCRs were identified by phylogenetic analysis, heterologously expressed in Escherichia coli, and the corresponding enzymes were characterized biochemically. Key words: allelic variation, bioenergy, bioethanol, cinnamoyl CoA reductase, gene • Two cDNAs, PvCCR1 and PvCCR2, encoded enzymes with CCR activity. They family, switchgrass (Panicum virgatum). -
Synthesis of Flavonoid Sulfates. II. the Use of Aryl Sulfatase in the Synthesis of Flavonol-3-Sulfates*
Synthesis of Flavonoid Sulfates. II. The Use of Aryl Sulfatase in the Synthesis of Flavonol-3-sulfates* Denis Barron** and Ragai K. Ibrahim Plant Biochemistry Laboratory, Department of Biology, Concordia University, 1455 De Maisonneuve Boulevard West, Montreal, Quebec, Canada H3G 1M8 Z. Naturforsch. 43c, 625-630 (1988); received February 23/May 17, 1988 Flavonol Sulfate Esters, Synthesis, 13C NMR, FAB-MS, UV Spectra The rates of aryl sulfatase hydrolysis of several 7-, 4'- and 3-sulfated flavonoids were compared and found to follow the order 7 or 4' >» 3. The complete resistance of the 3-sulfate ester to enzyme hydrolysis provided a unique and convenient method for the synthesis of a number of naturally occurring flavonol-3-sulfates from the corresponding higher sulfated analogs in quanti- tative yield. Introduction famic acid method [24] which gives rise to complex There has been an increasing number of reports in mixture of flavonoid sulfate isomers [25]. Although recent years on the natural occurrence of flavonoid flavonol-3-sulfates represent one of the most com- sulfates in the plant kingdom [2—21]. This consider- mon groups of naturally occurring sulfate esters [6, able interest seems to be related to their suggested 7], however, no method is yet available for the role in the detoxification of excess sulfate in response specific sulfation of position 3, due to its chelation to high sulfur environment [2], From structural point with the neighbouring carbonyl group. The fact that of view, the naturally occurring flavonoid sulfates are the 3-sulfate is the only group resistant to hydrolysis derivatives of common hydroxyflavones (Fig. -
So Uncommon and So Singular, but Underexplored: an Updated Overview on Ethnobotanical Uses, Biological Properties and Phytoconstituents of Sardinian Endemic Plants
plants Review So Uncommon and so Singular, but Underexplored: An Updated Overview on Ethnobotanical Uses, Biological Properties and Phytoconstituents of Sardinian Endemic Plants Cinzia Sanna 1,2,* , Andrea Maxia 1,2, Giuseppe Fenu 1 and Maria Cecilia Loi 1 1 Department of Life and Environmental Sciences, University of Cagliari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy; [email protected] (A.M.); [email protected] (G.F.); [email protected] (M.C.L.) 2 Co.S.Me.Se—Consorzio per lo Studio dei Metaboliti Secondari, Via Sant’Ignazio da Laconi 13, 09123 Cagliari, Italy * Correspondence: [email protected] Received: 13 July 2020; Accepted: 27 July 2020; Published: 29 July 2020 Abstract: The last decades have recorded an increase of plant-based drug discovery processes. Indeed, natural products possess a superior chemical diversity as compared to synthetic ones, leading to a renewal in searching for new therapeutic agents from the plant kingdom. In particular, since the structural variety of natural compounds reflects the biodiversity of their source organisms, regions of the world with high biodiversity and endemism deserve particular interest. In this context, Sardinia Island (Italy), with 290 endemic taxa (12% of the total flora), is expected to provide unique and structurally diverse phytochemicals for drug development. Several research groups built up a large program dedicated to the analysis of Sardinian endemic species, highlighting their peculiar features, both in respect of phytochemical and biological profiles. On this basis, the aim of this review is to provide an up-to-date and comprehensive overview on ethnobotanical uses, biological properties and phytoconstituents of Sardinian endemic plants in order to support their beneficial potential and to provide input for future investigations.