DOCSLIB.ORG

Etude Chimique Et Statistique De La Composition D'huiles Essentielles D

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Etude Chimique Et Statistique De La Composition D'huiles Essentielles D Etude chimique et statistique de la composition d’huiles essentielles d’origans (Lamiaceae) cultivés issus de graines d’origine méditerranéenne Gilles Figueredo To cite this version: Gilles Figueredo. Etude chimique et statistique de la composition d’huiles essentielles d’origans (Lami- aceae) cultivés issus de graines d’origine méditerranéenne. Chimie organique. Université Blaise Pascal - Clermont-Ferrand II, 2007. Français. NNT : 2007CLF21732. tel-00717749 HAL Id: tel-00717749 https://tel.archives-ouvertes.fr/tel-00717749 Submitted on 13 Jul 2012 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Numéro d’ordre : D.U. 1732 UNIVERSITÉ BLAISE PASCAL (U.F.R. Sciences et technologie) ÉCOLE DOCTORALE DES SCIENCES FONDAMENTALES N° 525 THÈSE présentée pour obtenir le grade de DOCTEUR D’UNIVERSITÉ (Spécialité : Chimie organique) Par Gilles FIGUEREDO Ingénieur CNAM option Chimie Organique Étude chimique et statistique de la composition d’huiles essentielles d'origans (Lamiaceae) cultivés issus de graines d'origine méditerranéenne Soutenue publiquement le 20 février 2007, devant la commission d’examen Président : M. Yves TROIN, Professeur à l’E.N.S.C. de Clermont -Ferrand Rapporteurs : Mme Chantal MENUT, Professeur à l’E.N.S.C. de Montpellier M. André-Paul CARNAT, Maître de Conférences à l’Université d’Auvergne Examinateurs M Jean-Claude CHALCHAT, Maître de Conférences à l’Université Blaise Pascal M. Raymond-Philippe GARRY, Professeur à l’I.U.F.M. de Clermont-Ferrand M. Bernard PASQUIER, Directeur du C.N.P.M.A.I. Milly-la-Forêt Invité M. Jean-Marie BESSIÈRE, Professeur à l’E.N.S.C. de Montpellier à Martine REMERCIEMENTS Ce travail a été effectué sous la direction de Monsieur Jean-Claude CHALCHAT au sein de l’équipe de recherche du Laboratoire de Chimie des Hétérocycles et des Glucides dirigé par Monsieur Yves TROIN, Professeur à l'E.N.S.C. de Clermont-Ferrand. J’exprime mes remerciements et une vive reconnaissance à Monsieur Jean-Claude CHALCHAT qui a initié ce travail et qui m'a conseillé, encouragé et soutenu scientifiquement tout au long de ces quatre années. Á Monsieur Yves TROIN qui m'a accueilli au sein de son laboratoire et pour avoir accepté la présidence du jury de thèse, j'exprime ma plus grande gratitude Mes remerciements s’associent de la même manière à Monsieur André Paul CARNAT, Maître de Conférences à l’Université d’Auvergne ainsi que Madame Chantal MENUT, Professeur à l'E.N.S.C de Montpellier qui m’ont fait l’honneur de juger mon travail et d’en être les rapporteurs. Je remercie vivement Monsieur Bernard PASQUIER, Directeur du C.N.P.M.A.I. à Milly-la- Forêt pour nous avoir fourni l’ensemble des huiles essentielles et les données botaniques du Genre Origanum. Je tiens également à remercier Monsieur Raymond-Philippe GARRY, Professeur à l’I.U.F.M. de Clermont-Ferrand et M. Jean-Marie BESSIERE Professeur à l'E.N.S.C de Montpellier pour avoir accepté d’examiner ce travail. J'exprime mes plus vifs et sincères remerciements à Madame Andrée CARNAT qui a su me faire partager toutes ses connaissances, mais aussi pour sa patience et le temps qu'elle a su consacrer à la finalité de mon travail. Je remercie Monsieur SCHOEFFERT du C.F.P.P.A. de Nyons pour nous avoir procuré les échantillons de O. grosii. Enfin je tiens à remercier le personnel du Service d’Imprimerie de l’Université Blaise Pascal qui a contribué à l’impression et à la mise en forme finale. SOMMAIRE SOMMAIRE ........................................................................................................ 1 INTRODUCTION............................................................................................... 4 CHAPITRE 1 : Généralités sur les matières odorantes .................................. 7 1.1. - Historique ................................................................................................................................................................. 7 1.2. - Différents procédés d’obtention de matières parfumées........................................................................................... 9 1.2.1. - La digestion............................................................................................................................................... 9 1.2.2. - L’enfleurage............................................................................................................................................ 10 1.2.3. - Extraction par solvants volatils ............................................................................................................... 10 1.2.3.1. - L’alcool éthylique....................................................................................................................... 10 1.2.3.2. - L’éther éthylique......................................................................................................................... 11 1.2.3.3. - D’autres solvants......................................................................................................................... 12 1.3. - Généralités sur les épices........................................................................................................................................ 12 1.4. - Huiles essentielles .................................................................................................................................................. 14 1.4.1. - Définition ................................................................................................................................................ 14 1.4.1.1. - Concrète...................................................................................................................................... 16 1.4.1.2. - Pommade florale......................................................................................................................... 16 1.4.1.3. - Résinoïde .................................................................................................................................... 16 1.4.1.4. - Absolue....................................................................................................................................... 17 1.4.2. - Répartition, localisation .......................................................................................................................... 17 1.4.3. - Rôle des huiles essentielles dans la plante .............................................................................................. 18 1.4.4. - Obtention des huiles essentielles............................................................................................................. 19 1.4.4.1. - Par expression des épicarpes de Citrus ....................................................................................... 19 1.4.4.2. - Par distillation en présence d’eau............................................................................................... 20 1.4.4.3. – Par extraction aux gaz supercritiques......................................................................................... 20 1.4.5. - Facteurs de variabilité ............................................................................................................................. 22 1.4.5.1. - Diversité selon l’organe végétal.................................................................................................. 22 1.4.5.2. - Influence de la période de récolte, du climat et du sol................................................................ 22 1.4.5.3. - Influence des différents paramètres sur la qualité des huiles essentielles ................................... 22 1.4.5.4. - Existence de variétés chimiques ou chémotypes......................................................................... 25 1.4.6. - Utilisation des huiles essentielles en aromathérapie................................................................................ 25 1.4.7. - Méthodes d’identification des composés ................................................................................................ 26 1.4.7.1. - La chromatographie en phase gazeuse........................................................................................ 26 1.4.7.2. - Indice de rétention ...................................................................................................................... 27 1.4.8. - Dégradation............................................................................................................................................. 29 CHAPITRE 2 : Biosynthèse des constituants volatils et odorants................ 30 2.1. - Les terpènes et terpénoïdes..................................................................................................................................... 30 2.1.1. - Formation du motif isoprénique.............................................................................................................. 31 2.1.2. - Condensation des motifs isopréniques .................................................................................................... 32 2.1.3. - Transformations secondaires..................................................................................................................
Load more

Recommended publications
  • Pdf Internet2) Internet3) 126
    DOI: 10.14267/phd.2015057 BUDAPESTI CORVINUS EGYETEM KERTÉSZETTUDOMÁNYI KAR GYÓGY- ÉS AROMANÖVÉNYEK TANSZÉK HAZAI VADON TERMŐ KÖZÖNSÉGES SZUROKFŰ (ORIGANUM VULGARE L.) POPULÁCIÓK MORFOLÓGIAI ÉS KÉMIAI DIVERZITÁSÁNAK FELTÁRÁSA DOKTORI ÉRTEKEZÉS CSERHÁTI BEATRIX TÉMAVEZETŐ: DR. SZABÓ KRISZTINA PHD BUDAPEST 2015 DOI: 10.14267/phd.2015057 A doktori iskola megnevezése: Kertészettudományi Doktori Iskola tudományága: Növénytermesztési és kertészeti tudományok vezetője: Dr. Tóth Magdolna egyetemi tanár, DSc BUDAPESTI CORVINUS EGYETEM, Kertészettudományi Kar, Gyümölcstermő Növények Tanszék Témavezető: Dr. Szabó Krisztina egyetemi docens, PhD BUDAPESTI CORVINUS EGYETEM, Kertészettudományi Kar, Gyógy- és Aromanövények Tanszék A jelölt a Budapesti Corvinus Egyetem Doktori Szabályzatában előírt valamennyi feltételnek eleget tett, az értekezés műhelyvitájában elhangzott észrevételeket és javaslatokat az értekezés átdolgozásakor figyelembe vette, azért az értekezés nyilvános vitára bocsátható. ..................................................... ..................................................... Az iskolavezető jóváhagyása A témavezető jóváhagyása 2 DOI: 10.14267/phd.2015057 A Budapesti Corvinus Egyetem Élettudományi Területi Doktori Tanács 2015. október 13-i határozatában a nyilvános vita lefolytatására az alábbi Bíráló Bizottságot jelölte ki: BÍRÁLÓ BIZOTTSÁG: Elnöke: Höhn Mária, CSc Tagjai: Terbe István, DSc Honfi Péter, PhD Ledniczkyné Lemberkovics Éva, PhD Máthé Imre, DSc Opponensek: Bodor Zsófia, PhD Stefanovitsné Bányai Éva, DSc Titkár: Honfi
    [Show full text]
  • Palynological Evolutionary Trends Within the Tribe Mentheae with Special Emphasis on Subtribe Menthinae (Nepetoideae: Lamiaceae)
    Plant Syst Evol (2008) 275:93–108 DOI 10.1007/s00606-008-0042-y ORIGINAL ARTICLE Palynological evolutionary trends within the tribe Mentheae with special emphasis on subtribe Menthinae (Nepetoideae: Lamiaceae) Hye-Kyoung Moon Æ Stefan Vinckier Æ Erik Smets Æ Suzy Huysmans Received: 13 December 2007 / Accepted: 28 March 2008 / Published online: 10 September 2008 Ó Springer-Verlag 2008 Abstract The pollen morphology of subtribe Menthinae Keywords Bireticulum Á Mentheae Á Menthinae Á sensu Harley et al. [In: The families and genera of vascular Nepetoideae Á Palynology Á Phylogeny Á plants VII. Flowering plantsÁdicotyledons: Lamiales (except Exine ornamentation Acanthaceae including Avicenniaceae). Springer, Berlin, pp 167–275, 2004] and two genera of uncertain subtribal affinities (Heterolamium and Melissa) are documented in Introduction order to complete our palynological overview of the tribe Mentheae. Menthinae pollen is small to medium in size The pollen morphology of Lamiaceae has proven to be (13–43 lm), oblate to prolate in shape and mostly hexacol- systematically valuable since Erdtman (1945) used the pate (sometimes pentacolpate). Perforate, microreticulate or number of nuclei and the aperture number to divide the bireticulate exine ornamentation types were observed. The family into two subfamilies (i.e. Lamioideae: bi-nucleate exine ornamentation of Menthinae is systematically highly and tricolpate pollen, Nepetoideae: tri-nucleate and hexa- informative particularly at generic level. The exine stratifi- colpate pollen). While the
    [Show full text]
  • Oregano: the Genera Origanum and Lippia
    Part 5 Pharmacology © 2002 Taylor & Francis 8 The biological/pharmacological activity of the Origanum Genus Dea Bariˇceviˇc and Tomaˇz Bartol INTRODUCTION In the past, several classifications were made within the morphologically and chemically diverse Origanum (Lamiaceae family) genus. According to different taxonomists, this genus comprises a different number of sections, a wide range of species and subspecies or botanical varieties (Melegari et al., 1995; Kokkini, 1997). Respecting Ietswaart taxo- nomic revision (Tucker, 1986; Bernath, 1997) there exist as a whole 49 Origanum taxa within ten sections (Amaracus Bentham, Anatolicon Bentham, Brevifilamentum Ietswaart, Longitubus Ietswaart, Chilocalyx Ietswaart, Majorana Bentham, Campanulaticalyx Ietswaart, Elongatispica Ietswaart, Origanum Ietswaart, Prolaticorolla Ietswaart) the major- ity of which are distributed over the Mediterranean. Also, 17 hybrids between different species have been described, some of which are known only from artificial crosses (Kokkini, 1997). Very complex in their taxonomy, Origanum biotypes vary in respect of either the content of essential oil in the aerial parts of the plant or essential oil compos- ition. Essential oil ‘rich’ taxa with an essential oil content of more than 2 per cent (most commercially known oregano plants), is mainly characterised either by the domi- nant occurrence of carvacrol and/or thymol (together with considerable amounts of ␥-terpinene and p-cymene) or by linalool, terpinene-4-ol and sabinene hydrate as main components (Akgül and Bayrak, 1987; Tümen and Bas¸er, 1993; Kokkini, 1997). The Origanum species, which are rich in essential oils, have been used for thousands of years as spices and as local medicines in traditional medicine. The name hyssop (the Greek form of the Hebrew word ‘ezov’), that is called ‘za’atar’ in Arabic and origanum in Latin, was first mentioned in the Bible (Exodus 12: 22 description of the Passover ritual) (Fleisher and Fleisher, 1988).
    [Show full text]
  • The Vascular Flora of Boone County, Iowa (2005-2008)
    Journal of the Iowa Academy of Science: JIAS Volume 117 Number 1-4 Article 5 2010 The Vascular Flora of Boone County, Iowa (2005-2008) Jimmie D. Thompson Let us know how access to this document benefits ouy Copyright © Copyright 2011 by the Iowa Academy of Science, Inc. Follow this and additional works at: https://scholarworks.uni.edu/jias Part of the Anthropology Commons, Life Sciences Commons, Physical Sciences and Mathematics Commons, and the Science and Mathematics Education Commons Recommended Citation Thompson, Jimmie D. (2010) "The Vascular Flora of Boone County, Iowa (2005-2008)," Journal of the Iowa Academy of Science: JIAS, 117(1-4), 9-46. Available at: https://scholarworks.uni.edu/jias/vol117/iss1/5 This Research is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion in Journal of the Iowa Academy of Science: JIAS by an authorized editor of UNI ScholarWorks. For more information, please contact [email protected]. Jour. Iowa Acad. Sci. 117(1-4):9-46, 2010 The Vascular Flora of Boone County, Iowa (2005-2008) JIMMIE D. THOMPSON 19516 515'h Ave. Ames, Iowa 50014-9302 A vascular plant survey of Boone County, Iowa was conducted from 2005 to 2008 during which 1016 taxa (of which 761, or 75%, are native to central Iowa) were encountered (vouchered and/or observed). A search of literature and the vouchers of Iowa State University's Ada Hayden Herbarium (ISC) revealed 82 additional taxa (of which 57, or 70%, are native to Iowa), unvouchered or unobserved during the current study, as having occurred in the county.
    [Show full text]
  • Screening of the Antioxidant Activity of Essential Oil and Various Extracts of Origanum Rotundifolium Boiss
    Journal of Medicinal Plants Research Vol. 3(4), pp. 246-254, April, 2009 Available online at http://www.academicjournals.org/JMPR ISSN 1996-0875© 2009 Academic Journals Full Length Research Paper Screening of the antioxidant activity of essential oil and various extracts of Origanum rotundifolium Boiss. from Turkey Ismihan Goze1*, Ahmet Alim2, Arzuhan Sihoglu Tepe3, Munevver Sokmen4, Kemal Sevgi3 and Bektas Tepe3 1Vocational School of Health Services, Cumhuriyet University, Sivas 58140, Turkey. 2Public Health Laboratory, Sivas Health Directorate, Sivas 58040, Turkey. 3Cumhuriyet University, Faculty of Science and Literature, Department of Molecular Biology and Genetics, Sivas 58140, Turkey. 4Karadeniz Technical University, Faculty of Science and Literature, Department of Chemistry, Trabzon 61080, Turkey. Accepted 25 March, 2009 This study is designed to examine the chemical composition and in vitro antioxidant activity of the essential oil and various extracts of Origanum rotundifolium Boiss. from Turkey. The total of the 40 identified components accounted for 97.23% (GC) and 95.10% (FID) of the total oil. Major components of the oil were borneol, terpinen-4-ol, and spathulenol. To determine the presence of well known and widespread phenolic compounds, water-soluble extract of O. rotundifolium was analyzed by HPLC. In the methanol-soluble extract, caffeic acid, p-coumaric acid, (+)-catechin, and ferulic acid were found in several quantities. Antioxidant activity of the essential oil and extracts of O. rotundifolium has been determined by four different test systems namely DPPH, β-carotene/linoleic acid, chelating effect and reducing power. A strong correlation was observed between the radical scavenging capacity and polarity of the extracts. The methanol-soluble extract which contains the most polar phytochemicals showed the strongest antioxidant effect in all test systems.
    [Show full text]
  • A Preliminary Checklist of the Alien Flora of Algeria (North Africa): Taxonomy, Traits and Invasiveness Potential Rachid Meddoura, Ouahiba Sahara and Guillaume Friedb
    BOTANY LETTERS https://doi.org/10.1080/23818107.2020.1802775 A preliminary checklist of the alien flora of Algeria (North Africa): taxonomy, traits and invasiveness potential Rachid Meddoura, Ouahiba Sahara and Guillaume Friedb aFaculty of Biological Sciences and Agronomic Sciences, Department of Agronomical Sciences, Mouloud Mammeri University of Tizi Ouzou, Tizi Ouzou, Algeria; bUnité Entomologie et Plantes Invasives, Anses – Laboratoire de la Santé des Végétaux, Montferrier-sur-Lez Cedex, France ABSTRACT ARTICLE HISTORY Biological invasions are permanent threat to biodiversity hotspots such as the Mediterranean Received 13 April 2020 Basin. However, research effort on alien species has been uneven so far and most countries of Accepted 23 July 2020 North Africa such as Algeria has not yet been the subject of a comprehensive inventory of KEYWORDS introduced, naturalized and invasive species. Thus, the present study was undertaken in order Algeria; alien flora; to improve our knowledge and to propose a first checklist of alien plants present in Algeria, introduced flora; invasive including invasive and potentially invasive plants. This work aims to make an inventory of all species; Mediterranean available data on the alien florapresent in Algeria, and to carry out preliminary quantitative and region; naturalized plants; qualitative analyses (number of taxa, taxonomic composition, life forms, geographical origins, plant traits; species list types of habitats colonized, degree of naturalization). The present review provides a global list of 211 vascular species of alien plants, belonging to 151 genera and 51 families. Most of them originated from North America (31.3%) and the Mediterranean Basin (19.4%). Nearly half (43%) of alien species are therophytes and most of them occur in highly disturbed biotopes (62%), such as arable fields (44.5%) or ruderal habitats, including rubble (17.5%).
    [Show full text]
  • Checklist Flora of the Former Carden Township, City of Kawartha Lakes, on 2016
    Hairy Beardtongue (Penstemon hirsutus) Checklist Flora of the Former Carden Township, City of Kawartha Lakes, ON 2016 Compiled by Dale Leadbeater and Anne Barbour © 2016 Leadbeater and Barbour All Rights reserved. No part of this publication may be reproduced, stored in a retrieval system or database, or transmitted in any form or by any means, including photocopying, without written permission of the authors. Produced with financial assistance from The Couchiching Conservancy. The City of Kawartha Lakes Flora Project is sponsored by the Kawartha Field Naturalists based in Fenelon Falls, Ontario. In 2008, information about plants in CKL was scattered and scarce. At the urging of Michael Oldham, Biologist at the Natural Heritage Information Centre at the Ontario Ministry of Natural Resources and Forestry, Dale Leadbeater and Anne Barbour formed a committee with goals to: • Generate a list of species found in CKL and their distribution, vouchered by specimens to be housed at the Royal Ontario Museum in Toronto, making them available for future study by the scientific community; • Improve understanding of natural heritage systems in the CKL; • Provide insight into changes in the local plant communities as a result of pressures from introduced species, climate change and population growth; and, • Publish the findings of the project . Over eight years, more than 200 volunteers and landowners collected almost 2000 voucher specimens, with the permission of landowners. Over 10,000 observations and literature records have been databased. The project has documented 150 new species of which 60 are introduced, 90 are native and one species that had never been reported in Ontario to date.
    [Show full text]
  • Checklist of the Washington Baltimore Area
    Annotated Checklist of the Vascular Plants of the Washington - Baltimore Area Part I Ferns, Fern Allies, Gymnosperms, and Dicotyledons by Stanwyn G. Shetler and Sylvia Stone Orli Department of Botany National Museum of Natural History 2000 Department of Botany, National Museum of Natural History Smithsonian Institution, Washington, DC 20560-0166 ii iii PREFACE The better part of a century has elapsed since A. S. Hitchcock and Paul C. Standley published their succinct manual in 1919 for the identification of the vascular flora in the Washington, DC, area. A comparable new manual has long been needed. As with their work, such a manual should be produced through a collaborative effort of the region’s botanists and other experts. The Annotated Checklist is offered as a first step, in the hope that it will spark and facilitate that effort. In preparing this checklist, Shetler has been responsible for the taxonomy and nomenclature and Orli for the database. We have chosen to distribute the first part in preliminary form, so that it can be used, criticized, and revised while it is current and the second part (Monocotyledons) is still in progress. Additions, corrections, and comments are welcome. We hope that our checklist will stimulate a new wave of fieldwork to check on the current status of the local flora relative to what is reported here. When Part II is finished, the two parts will be combined into a single publication. We also maintain a Web site for the Flora of the Washington-Baltimore Area, and the database can be searched there (http://www.nmnh.si.edu/botany/projects/dcflora).
    [Show full text]
  • Essential Oils Extracted from Different Species of the Lamiaceae Plant Family As Prospective Bioagents Against Several Detriment
    molecules Review Essential Oils Extracted from Different Species of the Lamiaceae Plant Family as Prospective Bioagents against Several Detrimental Pests Asgar Ebadollahi 1,* , Masumeh Ziaee 2 and Franco Palla 3,* 1 Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 56199-36514, Iran 2 Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz 61357-43311, Iran; [email protected] 3 Department of Biological, Chemical and Pharmaceutical Sciences and Technologies, University of Palermo, Palermo 38-90123, Italy * Correspondence: [email protected] (A.E.); [email protected] (F.P.) Academic Editors: Carmen Formisano, Vincenzo De Feo and Filomena Nazzaro Received: 5 March 2020; Accepted: 27 March 2020; Published: 28 March 2020 Abstract: On the basis of the side effects of detrimental synthetic chemicals, introducing healthy, available, and effective bioagents for pest management is critical. Due to this circumstance, several studies have been conducted that evaluate the pesticidal potency of plant-derived essential oils. This review presents the pesticidal efficiency of essential oils isolated from different genera of the Lamiaceae family including Agastache Gronovius, Hyptis Jacquin, Lavandula L., Lepechinia Willdenow, Mentha L., Melissa L., Ocimum L., Origanum L., Perilla L., Perovskia Kar., Phlomis L., Rosmarinus L., Salvia L., Satureja L., Teucrium L., Thymus L., Zataria Boissier, and Zhumeria Rech. Along with acute toxicity, the sublethal effects were illustrated such as repellency, antifeedant activity, and adverse effects on the protein, lipid, and carbohydrate contents, and on the esterase and glutathione S-transferase enzymes. Chemical profiles of the introduced essential oils and the pesticidal effects of their main components have also been documented including terpenes (hydrocarbon monoterpene, monoterpenoid, hydrocarbon sesquiterpene, and sesquiterpenoid) and aliphatic phenylpropanoid.
    [Show full text]
  • Trillium Erectum X Flexipes, Near Ann Arbor, Michigan, Often Mistaken for T
    Bulletin of the American Rock Garden Society Volume 51 Number 3 Summer 1993 Cover: Wild hybrid of Trillium erectum x flexipes, near Ann Arbor, Michigan, often mistaken for T. undulatum by Jill S. Buck of Westminster, Colorado, from photo by F. W. Case, Jr. All Material Copyright © 1993 American Rock Garden Society Bulletin of the American Rock Garden Society Volume 51 Number 3 Summer 1993 Features Trillium erectum and Its Hybrids, by Frederick W. Case, Jr. & Roberta Case 163 Vegetative Propagation in Trillium chloropetalum, by Margery Edgren 169 Waves of Bloom, by Panayoti Kelaidis 173 Plant Gems of the Austrian National Park, by Franz Hadacek 181 Plant Hunting in the USA, by Alexej Borkovec 185 American Alpines for Show, by Graham Nicholls 189 A Commitment to Fertility, by Gwen Kelaidis 193 Bulletin Editors since 1962, by Mamie Flook, with Buffy Parker 205 Sedums as Foliage Plants, by Ladislav Hlavaty 215 Departments Seed Exchange 219 Propagation 225 Trillium flexipes 162 Bulletin of the American Rock Garden Society Vol. 51(3) Trillium erectum and Its Hybrids by Frederick W. Case, Jr. & Roberta Case- Until 1962, no one, to my p. 199). Our field work established that knowledge, had reported the existence the Farwell forms grew mostly where of hybrids in the genus Trillium. At stream flood plains interlaced with acid that time, George Burrows and we uplands, bringing the two species close postulated the existence of wild hybrids enough together that bees could cross- based upon occurrence of peculiar trilli- pollinate them. We concluded that ums in southeastern Michigan. Botanist these "forms" were actually hybrids, 0.
    [Show full text]
  • Caryologia International Journal of Cytology, Cytosystematics and Cytogenetics
    0008-7114 2020 2 73 – n. Vol. Caryologia 2020 International Journal of Cytology, Vol. 73 - n. 2 Cytosystematics and Cytogenetics Caryologia FIRENZE PRESSUNIVERSITY Caryologia. International Journal of Cytology, Cytosystematics and Cytogenetics Caryologia is devoted to the publication of original papers, and occasionally of reviews, about plant, animal and human kar- yological, cytological, cytogenetic, embryological and ultrastructural studies. Articles about the structure, the organization and the biological events relating to DNA and chromatin organization in eukaryotic cells are considered. Caryologia has a strong tradition in plant and animal cytosystematics and in cytotoxicology. Bioinformatics articles may be considered, but only if they have an emphasis on the relationship between the nucleus and cytoplasm and/or the structural organization of the eukaryotic cell. Editor in Chief Associate Editors Alessio Papini Alfonso Carabez-Trejo - Mexico City, Mexico Dipartimento di Biologia Vegetale Katsuhiko Kondo - Hagishi-Hiroshima, Japan Università degli Studi di Firenze Canio G. Vosa - Pisa, Italy Via La Pira, 4 – 0121 Firenze, Italy Subject Editors Mycology Plant Cytogenetics Histology and Cell Biology Renato Benesperi Lorenzo Peruzzi Alessio Papini Università di Firenze, Italy Università di Pisa Università di Firenze Human and Animal Cytogenetics Plant Karyology and Phylogeny Zoology Michael Schmid Andrea Coppi Mauro Mandrioli University of Würzburg, Germany Università di Firenze Università di Modena e Reggio Emilia Editorial Assistant Sara Falsini Università degli Studi di Firenze, Italy Editorial Advisory Board G. Berta - Alessandria, Italy G. Delfino - Firenze, Italy M. Mandrioli - Modena, Italy D. Bizzaro - Ancona, Italy S. D'Emerico - Bari, Italy G. C. Manicardi - Modena, Italy A. Brito Da Cunha - Sao Paulo, Brazil F. Garbari - Pisa, Italy P.
    [Show full text]
  • Medicinal Plants and Natural Product Research
    Medicinal Plants and Natural Product Research • Milan S. • Milan Stankovic Medicinal Plants and Natural Product Research Edited by Milan S. Stankovic Printed Edition of the Special Issue Published in Plants www.mdpi.com/journal/plants Medicinal Plants and Natural Product Research Medicinal Plants and Natural Product Research Special Issue Editor Milan S. Stankovic MDPI • Basel • Beijing • Wuhan • Barcelona • Belgrade Special Issue Editor Milan S. Stankovic University of Kragujevac Serbia Editorial Office MDPI St. Alban-Anlage 66 4052 Basel, Switzerland This is a reprint of articles from the Special Issue published online in the open access journal Plants (ISSN 2223-7747) from 2017 to 2018 (available at: https://www.mdpi.com/journal/plants/special issues/medicinal plants). For citation purposes, cite each article independently as indicated on the article page online and as indicated below: LastName, A.A.; LastName, B.B.; LastName, C.C. Article Title. Journal Name Year, Article Number, Page Range. ISBN 978-3-03928-118-3 (Pbk) ISBN 978-3-03928-119-0 (PDF) Cover image courtesy of Trinidad Ruiz Tellez.´ c 2020 by the authors. Articles in this book are Open Access and distributed under the Creative Commons Attribution (CC BY) license, which allows users to download, copy and build upon published articles, as long as the author and publisher are properly credited, which ensures maximum dissemination and a wider impact of our publications. The book as a whole is distributed by MDPI under the terms and conditions of the Creative Commons license CC BY-NC-ND. Contents About the Special Issue Editor ...................................... vii Preface to ”Medicinal Plants and Natural Product Research” ...................
    [Show full text]