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Flavonoids and Stilbenoids of the Genera Dracaena and Sansevieria: Structures and Bioactivities
molecules Review Flavonoids and Stilbenoids of the Genera Dracaena and Sansevieria: Structures and Bioactivities Zaw Min Thu 1,* , Ko Ko Myo 1, Hnin Thanda Aung 2, Chabaco Armijos 3,* and Giovanni Vidari 4,* 1 Department of Chemistry, Kalay University, Kalay 03044, Sagaing Region, Myanmar; [email protected] 2 Department of Chemistry, University of Mandalay, Mandalay 100103, Myanmar; [email protected] 3 Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador 4 Medical Analysis Department, Faculty of Science, Tishk International University, Erbil 44001, Iraq * Correspondence: [email protected] (Z.M.T.); [email protected] (C.A.); [email protected] (G.V.) Received: 18 May 2020; Accepted: 2 June 2020; Published: 3 June 2020 Abstract: The genera Dracaena and Sansevieria (Asparagaceae, Nolinoideae) are still poorly resolved phylogenetically. Plants of these genera are commonly distributed in Africa, China, Southeast Asia, and America. Most of them are cultivated for ornamental and medicinal purposes and are used in various traditional medicines due to the wide range of ethnopharmacological properties. Extensive in vivo and in vitro tests have been carried out to prove the ethnopharmacological claims and other bioactivities. These investigations have been accompanied by the isolation and identification of hundreds of phytochemical constituents. The most characteristic metabolites are steroids, flavonoids, stilbenes, and saponins; many of them exhibit potent analgesic, anti-inflammatory, antimicrobial, antioxidant, antiproliferative, and cytotoxic activities. This review highlights the structures and bioactivities of flavonoids and stilbenoids isolated from Dracaena and Sansevieria. Keywords: Dracaena; Sansevieria; biological/pharmacological activities; flavonoids; stilbenoids 1. Introduction The taxonomic boundaries of the dracaenoid genera Dracaena and Sansevieria have long been debated. -
Gradient Analysis of Exotic Species in Pinus Radiata Stands of Tenerife (Canary Islands) S
The Open Forest Science Journal, 2009, 2, 63-69 63 Open Access Gradient Analysis of Exotic Species in Pinus radiata Stands of Tenerife (Canary Islands) S. Fernández-Lugo and J.R. Arévalo* Departamento de Ecología, Facultad de Biología, Universidad de La Laguna, La Laguna 38206, Spain Abstract: Identifying the factors that influence the spread of exotic species is essential for evaluating the present and future extent of plant invasions and for the development of eradication programs. We randomly established a network of 250 plots on an exotic Pinus radiata D. Don plantation on Tenerife Island in order to determine if roads and urban centers are favouring the spread of exotic plant species into the forest. We identified four distinct vegetation groups in the P. radiata stands: advanced laurel forest (ALF), undeveloped laurel forest (ULF), ruderal (RU), and Canarian pine stand (CPS). The groups farthest from roads and urban nuclei (ALF and CPS) have the best conserved vegetation, characterizing by the main species of the potential vegetation of the area and almost no exotic and ruderal species. On the other hand, the groups nearest to human infrastructures (ULF and RU) are characterized by species from potential vegetation’s substitution stages and a higher proportion of exotic and ruderal species. The results indicate distance to roads and urban areas are disturbance factors favouring the presence of exotic and ruderal species into the P. radiata plantation. We propose the eradication of some dangerous exotic species, monitoring of the study area in order to detect any intrusion of alien species in the best conserved areas and implementation of management activities to reduce the perturbation of the ULF and RU areas. -
Proceedings Amurga Co
PROCEEDINGS OF THE AMURGA INTERNATIONAL CONFERENCES ON ISLAND BIODIVERSITY 2011 PROCEEDINGS OF THE AMURGA INTERNATIONAL CONFERENCES ON ISLAND BIODIVERSITY 2011 Coordination: Juli Caujapé-Castells Funded and edited by: Fundación Canaria Amurga Maspalomas Colaboration: Faro Media Cover design & layout: Estudio Creativo Javier Ojeda © Fundación Canaria Amurga Maspalomas Gran Canaria, December 2013 ISBN: 978-84-616-7394-0 How to cite this volume: Caujapé-Castells J, Nieto Feliner G, Fernández Palacios JM (eds.) (2013) Proceedings of the Amurga international conferences on island biodiversity 2011. Fundación Canaria Amurga-Maspalomas, Las Palmas de Gran Canaria, Spain. All rights reserved. Any unauthorized reprint or use of this material is prohibited. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system without express written permission from the author / publisher. SCIENTIFIC EDITORS Juli Caujapé-Castells Jardín Botánico Canario “Viera y Clavijo” - Unidad Asociada CSIC Consejería de Medio Ambiente y Emergencias, Cabildo de Gran Canaria Gonzalo Nieto Feliner Real Jardín Botánico de Madrid-CSIC José María Fernández Palacios Universidad de La Laguna SCIENTIFIC COMMITTEE Juli Caujapé-Castells, Gonzalo Nieto Feliner, David Bramwell, Águedo Marrero Rodríguez, Julia Pérez de Paz, Bernardo Navarro-Valdivielso, Ruth Jaén-Molina, Rosa Febles Hernández, Pablo Vargas. Isabel Sanmartín. ORGANIZING COMMITTEE Pedro -
Journal of Chromatography a Flavylium Chromophores As Species Markers for Dragon's Blood Resins from Dracaena and Daemonorops
Journal of Chromatography A, 1209 (2008) 153–161 Contents lists available at ScienceDirect Journal of Chromatography A journal homepage: www.elsevier.com/locate/chroma Flavylium chromophores as species markers for dragon’s blood resins from Dracaena and Daemonorops trees Micaela M. Sousa a,b , Maria J. Melo a,b,∗ , A. Jorge Parola b , J. Sérgio Seixas de Melo c , Fernando Catarino d , Fernando Pina b, Frances E.M. Cook e, Monique S.J. Simmonds e, João A. Lopes f a Department of Conservation and Restoration, Faculty of Sciences and Technology, New University of Lisbon, 2829-516 Monte da Caparica, Portugal b REQUIMTE, CQFB, Chemistry Department, Faculty of Sciences and Technology, New University of Lisbon, 2829-516 Monte da Caparica, Portugal c Department of Chemistry, University of Coimbra, P3004-535 Coimbra, Portugal d Botanical Garden, University of Lisbon, Lisbon, Portugal e Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, UK f REQUIMTE, Servic¸ o de Química-Física, Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha 164, 4099-030 Porto, Portugal article info abstract Article history: A simple and rapid liquid chromatographic method with diode-array UV–vis spectrophotometric detec- Received 20 May 2008 tion has been developed for the authentication of dragon’s blood resins from Dracaena and Daemonorops Received in revised form 28 August 2008 trees. Using this method it was discovered that the flavylium chromophores, which contribute to the red Accepted 3 September 2008 colour of these resins, differ among the species and could be used as markers to differentiate among Available online 7 September 2008 species. A study of parameters, such as time of extraction, proportion of MeOH and pH, was undertaken to optimise the extraction of the flavyliums. -
Dracaena Draco
Report under the Article 17 of the Habitats Directive European Environment Period 2007-2012 Agency European Topic Centre on Biological Diversity Dracaena draco Annex IV Priority No Species group Vascular plants Regions Macaronesian The Canary Island dragon tree Dracaena draco is endemic to Canary Islands (Spain), Madeira (Portugal) and Cape Verde (Macaronesian region). It growes on cliffs and slopes of ravines. Action is required! It is classified as Endangered (EN) in IUCN Red List. In addition it is also protected by regional law and classed as Endangered (EN) in the Spanish national red list (Moreno 2008). There are some missing reference values from Spain and assessment is "Unknown" but "Unfavourable Bad" condition of Portugal population is 26.6% (more than 25%) and it leads to overall "Unfavourable Bad" assessment. Pressures and threats are linked to overgrazing, erosion, genetic prolusion, dispersed habitation and anthropogenic reduction of habitat connectivity. No changes in overall conservation status between 2001-06 and 2007-12 reports. Better data required from Spain. Page 1 Species: Dracaena draco Report under the Article 17 of the Habitats Directive Assessment of conservation status at the European biogeographical level Conservation status (CS) of parameters Current Trend in % in Previous Reason for Region Future CS CS region CS change Range Population Habitat prospects MAC U2 U2 U2 U2 U2 x 100 U2 See the endnote for more informationi Assessment of conservation status at the Member State level Page 2 Species: Dracaena draco Report under the Article 17 of the Habitats Directive Assessment of conservation status at the Member State level The map shows both Conservation Status and distribution using a 10 km x 10 km grid. -
A. Hansen & P. Sunding Flora of Macaronesia. Checklist of Vascular Plants. 4. Revised Edition
DOI: 10.2478/som-1993-0003 sommerfeltia 17 A. Hansen & P. Sunding Flora of Macaronesia. Checklist of vascular plants. 4. revised edition 1993 sommerf~ is owned and edited by the Botanical Garden and Museum, University of Oslo. SOMMERFELTIA is named in honour of the eminent Norwegian botanist and clergyman S0ren Christian Sommerfelt (1794-1838). The generic name Sommerfeltia has been used in (1) the lichens by Florke 1827, now Solorina, (2) Fabaceae by Schumacher 1827, now Drepanocarpus, and (3) Asteraceae by Lessing 1832, nom. cons. SOMMERFELTIA is a series of monographs in plant taxonomy, phytogeography, phyto sociology, plant ecology, plant morphology, and evolutionary botany. Most papers are by Norwegian authors. Authors not on the staff of the Botanical Garden and Museum in Oslo pay a page charge of NOK 30. SOMMERFELTIA appears at irregular intervals, normally one article per volume. Editor: Rune Halvorsen 0kland. Editorial Board: Scientific staff of the Botanical Garden and Museum. Address: SOMMERFELTIA, Botanical Garden and Museum, University of Oslo, Trond heimsveien 23B, N-0562 Oslo 5, Norway. Order: On a standing order (payment on receipt of each volume) SOMMERFELTIA is supplied at 30 % discount. Separate volumes are supplied at prices given on pages inserted at the end of the volume. sommerfeltia 17 A. Hansen & P. Sunding Flora of Macaronesia. Checklist of vascular plants. 4. revised edition 1993 ISBN 82-7420-019-5 ISSN 0800-6865 Hansen, A. & Sunding, P. 1993. Flora of Macaronesia. Checklist of vascular plants. 4. revised edition. - Sommerfeltia 17: 1-295. Oslo. ISBN 82-7420-019-5. ISSN 0800-6865. An up-to-date checklist of the vascular plants of Macaronesia (the Azores, the Madeira archipelago, the Salvage Islands, the Canary Island, and the Cape Verde Islands) is given. -
Documento Informativo
MONUMENTO NATURAL DEL LOMO DEL CARRETÓN (G-11) DOCUMENTO INFORMATIVO Monumento Natural del LOMO DEL CARRETÓN Aprobación Definitiva 2009 MONUMENTO NATURAL DEL LOMO DEL CARRETÓN (G-11) EQUIPO REDACTOR Roimán Melecio Velásquez Medina. Licenciado en Geografía. Gustavo Viera Ruiz. Licenciado en Biología Alejandro Gámez Mendoza. Licenciado en Arqueología. David Suárez Perera. Licenciado en Cartografía Marian Martínez Izquierdo. Técnica Ambiental. Licenciada en Ciencias del Mar MAQUETACIÓN Y ADMINISTRACIÓN Diana Callero Chacón. Diseño Gráfico y Administración Normas de Conservación Documento Informativo i Monumento Natural del LOMO DEL CARRETÓN Aprobación Definitiva 2009 INDICE 1 DESCRIPCIÓN DEL ESPACIO NATURAL PROTEGIDO ...............................................................1 2 MEDIO FÍSICO ..................................................................................................................................2 2.1 CLIMA.......................................................................................................................................2 2.2 GEOLOGÍA...............................................................................................................................3 2.2.1 CATEGORÍAS GEOLÓGICAS .............................................................................................5 2.3 GEOMORFOLOGÍA .................................................................................................................8 2.3.1 CATEGORÍAS GEOMORFOLÓGICAS................................................................................9 -
Documento Informativo RESERVA NATURAL ESPECIAL DE PUNTALLANA PLAN DIRECTOR
P la n D ir e c to r Reserva Natural Especial de APROBACIÓN APROBACIPuntallanaÓN DEFINITIVA DDEFINITIVA oc um en to In fo rm at ivo RESERVA NATURAL ESPECIAL DE PUNTALLANA PLAN DIRECTOR INDICE DOCUMENTO INFORMATIVO 1. DESCRIPCIÓN DE LA RESERVA NATURAL ESPECIAL .................................. 3 1.1 INTRODUCCIÓN ...................................................................................... 3 1.2 MEDIO FÍSICO............................................................................................ 3 1.2.1. Situación geográfica y extensión..................................................... 3 1.2.2. Clima ............................................................................................. 3 1.2.3. Geología y geomorfología ............................................................. 4 1.2.4. Características morfológicas .......................................................... 7 1.2.5. Hidrología ....................................................................................... 8 1.2.6. Edafología ..................................................................................... 10 1.2.7. Paisaje. Unidades de paisaje ....................................................... 12 1.3 MEDIO BIOLÓGICO ................................................................................. 14 1.3.1. Flora y vegetación ......................................................................... 14 1.3.2. Fauna ............................................................................................ 23 1.3.3. Medio litoral ................................................................................ -
Ethnobotanical Survey of Dracaena Cinnabari and Investigation of the Pharmacognostical Properties, Antifungal and Antioxidant Activity of Its Resin
plants Communication Ethnobotanical Survey of Dracaena cinnabari and Investigation of the Pharmacognostical Properties, Antifungal and Antioxidant Activity of Its Resin Mohamed Al-Fatimi Department of Pharmacognosy, Faculty of Pharmacy, Aden University, P.O. Box 5411, Maalla, Aden, Yemen; [email protected] Received: 28 September 2018; Accepted: 24 October 2018; Published: 26 October 2018 Abstract: Dracaena cinnabari Balf. f. (Dracaenaceae) is an important plant endemic to Soqotra Island, Yemen. Dragon’s blood (Dam Alakhwin) is the resin that exudes from the plant stem. The ethnobotanical survey was carried out by semi-structured questionnaires and open interviews to document the ethnobotanical data of the plant. According to the collected ethnobotanical data, the resin of D. cinnabari is widely used in the traditional folk medicine in Soqotra for treatment of dermal, dental, eye and gastrointestinal diseases in humans. The resin samples found on the local Yemeni markets were partly or totally substituted by different adulterants. Organoleptic properties, solubility and extractive value were demonstrated as preliminary methods to identify the authentic pure Soqotri resin as well as the adulterants. In addition, the resin extracts and its solution in methanol were investigated for their in vitro antifungal activities against six human pathogenic fungal strains by the agar diffusion method, for antioxidant activities using the DPPH assay and for cytotoxic activity using the neutral red uptake assay. The crude authentic resin dissolves completely in methanol. In comparison with different resin extracts, the methanolic solution of the whole resin showed the strongest biological activities. It showed strong antifungal activity, especially against Microsporum gypseum and Trichophyton mentagrophytes besides antioxidant activities and toxicity against FL-cells. -
Wood Anatomy of Echium (Boraginaceae) Sherwin Carlquist Claremont Graduate University; Rancho Santa Ana Botanic Garden
Aliso: A Journal of Systematic and Evolutionary Botany Volume 7 | Issue 2 Article 7 1970 Wood Anatomy of Echium (Boraginaceae) Sherwin Carlquist Claremont Graduate University; Rancho Santa Ana Botanic Garden Follow this and additional works at: http://scholarship.claremont.edu/aliso Part of the Botany Commons Recommended Citation Carlquist, Sherwin (1970) "Wood Anatomy of Echium (Boraginaceae)," Aliso: A Journal of Systematic and Evolutionary Botany: Vol. 7: Iss. 2, Article 7. Available at: http://scholarship.claremont.edu/aliso/vol7/iss2/7 ALISO VoL. 7, No. 2, pp. 183-199 JUNE 22, 1970 WOOD ANATOMY OF ECHIUM (BORAGINACEAE) SHERWIN CARLQUIST1 Claremont Graduate School and Rancho Santa Ana Botanic Garden, Claremont, California INTRODUCTION Echium is a genus of interest with relation to islands: annual and short lived perennial species occur within the Mediterranean region, but species on the Atlantic Islands have a great variety of growth forms, most notably some shrubs much woodier than any non-insular echiums. Other typically herbaceous dicotyledonous groups in which species of the Atlantic Islands are appreciably woodier than non-insular ones include Centaurea and Sonchus ( Asteraceae); Cheiranthus, Crambe, Descurainia, Parolinia, and Sinapodendron ( Brassicaceae); Convolvulus ( Convolvulaceae); and Plan tago ( Plantaginaceae). The tendency for Macaronesian species to be woodier than their main land relatives has naturally given rise to interpretations. The rosette shrubs of these islands are quite characteristic; such shrubs were termed "Feder buschgewachse" by Schenck ( 1907). These suggest to some workers her baceous groups in which the notably moderate climate of islands has per mitted continued growth; in these groups there is natural selection for plants that are of longer duration and increased woodiness, suiting the year-long growing season of such insular areas. -
Issn 0140-786X
• ISSN 0140-786X THE JOURNAL OF THE INTERNATIONAL ASCLEPIAD SOCIETY FOUNDER-A.WOODWARD ontents May 1992 I Editorial 3 Society Matters 3 A Huernia insigniflora that isn't 6 Martin Land Ceropegia Meyeri 7 Peter Pons Ceropegia Ampliata - A look inside 8 Phil Clark Letters to the Editor 1 O Asclepiads in the Literature 13 compiled by Colin Walker A Note on the Carallumas of Jordan 17 Colin Walker Sultry and Seductive Stranger 20 Tim Longville A Word about Names 20 Phil Clark N.E.Brown's reminiscences on Stapelleae Geoff Hedgecock 21 Catalogues Received 23 Growth Forms of Ceropegia 24 Phil Clark Cover illustration: A - F Marsdenia praestans Schltr., G - N M. glabra Schltr., O - T M. kempteriana Schltr. from R. Shlechter, Die Asclepiadeceen von Deutch-Neu-Guinea (Botanish Jahrbucher 50 p. 148. 1914) Published by the International Asclepiad Society three times per subscription year. ~ The International Asclepiad Society and the Authors of Individual articles. 1992. All enquiries to be addressed to the Editor. Subscription - £10.00 per annum - year commences 1st May II INTERNATIONAL Asclepiad SOCIETY II OFFICIAL 1991/2 CHAIRMAN Philip E. Downs, 77 Chartwell Avenue, Wingerworth, Chesterfield, S42 6SR. SECRETARY L.B.Delderfield, 2 Keymer Court, Burgess Hill, West Sussex, RH15 0AA. TREASURER G.A.Hedgecock, 1 Aster Road, Haydock, St Helens, Merseyside, WA11 0NX. EDITOR P.S.Clark, Ty Cano!, Plas Teg, Llandegla, Wrecsam, Clwyd, LL11 3AO. SEED BANK SECRETARY R.P.Knowles, 26 Arbury Avenue, Blackbrook, St Helens, Merseyside, WA11 9HW. PLANT EXCHANGE P.W.Noble, 21 Caernarvon Drive, Barnburgh, Doncaster, South Yorkshire, DN5 7HF (Tel: 0709 895895) PLANT BANK SECRETARY P.Bent. -
The Canary Islands
The Canary Islands Naturetrek Tour Report 6 - 13 March 2009 Indian Red Admiral – Vanessa indica vulcania Canary Islands Cranesbill – Geranium canariense Fuerteventura Sea Daisy – Nauplius sericeus Aeonium urbicum - Tenerife Euphorbia handiensis - Fuerteventura Report compiled by Tony Clarke with images by kind courtesy of Ken Bailey Naturetrek Cheriton Mill Cheriton Alresford Hampshire SO24 0NG England T: +44 (0)1962 733051 F: +44 (0)1962 736426 E: [email protected] W: www.naturetrek.co.uk Tour Report The Canary Islands Tour Leader: Tony Clarke (tour leader and naturalist) Tour Participants: Phil Haywood Hazel Haywood Peter Barrett Charles Wade Ken Bailey Day 1 Friday 6th March The arrival time of the group meant that we had enough time to do some birding in the afternoon and so we drove up from the airport, through Vilaflor to the Zona Recreativa de Las Lajas. This is probably the most well known location on Tenerife as it is where most people see their first Blue Chaffinches and we were not to be disappointed. Also at this location we saw the only Great Spotted Woodpecker of the tour plus a few Canaries, a Tenerife Kinglet and a few African Blue Tits. After departing from Las Lajas we continued climbing and entered the Las Cañadas National Park which is a spectacular drive through volcanic scenery. On the drive we encountered quite a few endemic plants including Pinus canariensis and Spartocytisus supranubius that were common and easily recognized and Echium wildpretii, Pterocephalus lasiospermus, Descurainia bourgaeana and Argyranthemum teneriffae which were rather unimpressive as they were not yet flowering but we were compensated by the fabulous views across the ancient caldera.