Breeding for Disease Resistance in Hevea Spp. - Status, Potential Threats, and Possible Strategies
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Ethnobotany of Riverine Populations from the Rio Negro, Amazonia (Brazil)
Journal of Ethnobiology 27(1): 46–72 Spring/Summer 2007 ETHNOBOTANY OF RIVERINE POPULATIONS FROM THE RIO NEGRO, AMAZONIA (BRAZIL) ANDRE´ A LEME SILVA,a JORGE TAMASHIROb and ALPINA BEGOSSIc aDepartamento de Ecologia, Instituto de Biocieˆncias Universidade de Sa˜o Paulo, Sa˜o Paulo, Brazil, CEP 05580-900 ^[email protected]& bDepartamento de Botaˆnica, UNICAMP Campinas, Sa˜o Paulo, Brazil ^[email protected]& cFisheries and Food Institute, Rua Coronel Quirino 1636, Campinas, Sa˜o Paulo 13025-002, Brazil, and Fisheries Management and Training Program, PREAC-UNICAMP ^[email protected]& ABSTRACT.—This paper presents a comparative study of plant knowledge and use in rural and urban areas in the municipality of Barcelos in the Rio Negro, Amazonas, Brazil, based on a total of 81 interviews. Using diversity indices (Shannon-Wiener), plant knowledge is compared among communities (urban- rural population), and between sex (male-female) and age (older or younger than 40 years) categories within each community. Among our informants, we found quantitative differences concerning the knowledge of medicinal plants between sex and age categories. Some individuals play a key role relating to medicinal plant knowledge, and steps should be taken in order to include them in management and conservation plans. Key words: ethnobotany, diversity indices, plant knowledge and use, Rio Negro, Brazilian Amazon. RESUMO.—Com base em um total de 81 entrevistas, no´s apresentamos um estudo etnobotaˆnico comparativo entre populac¸o˜es urbanas e rurais na municipalidade de Barcelos no Rio Negro, Amazonas, Brasil. Usando´ ındices de diversidade (Shannon-Wiener), o conhecimento de plantas e´ comparado entre as comunidades estudadas (populac¸a˜o urbana e rural), geˆnero (masculino e feminino) e categorias de idade (menos que 40 anos e mais que 40 anos de idade). -
Facultad De Ciencias Forestales
FACULTAD DE CIENCIAS FORESTALES ESCUELA DE FORMACIÓN PROFESIONAL DE INGENIERÍA EN ECOLOGÍA DE BOSQUES TROPICALES TESIS “Cálculo del área foliar de Caraipa utilis Vásquez y su contribución para su manejo sostenible en los Varillales de la Reserva Nacional Allpahuayo Mishana, Loreto, Perú” Tesis para optar el título de Ingeniero en Ecología de Bosques Tropicales Autor Alan Christian Chumbe Ycomedes Iquitos - Perú 2017 DEDICATORIA A DIOS, por brindarme cada día un nuevo amanecer para ser una mejor persona. A mis padres, David y Janeth, y hermana, Giovanna, personas que son mi ejemplo a seguir y estímulo para ser mejor cada día. A mis amigos y demás personas que estuvieron presentes en el día a día, que con su ayuda y compañía me incentivaron a concluir este proyecto. AGRADECIMIENTO Al Blgo. Ricardo Zárate Gómez, por su paciencia y co-asesoramiento para lograr concluir el proyecto. Un agradecimiento especial al docente Fritz Veintemilla Arana, por su constante apoyo y asesoramiento, y los consejos brindados para el desarrollo de la presente tesis. A Luisin Ruiz, Max Guiriz, Priscila Gonzales, Danna Flores, Milagros Rimachi, Linder Mozombite y George Gallardo por su apoyo en el trabajo de campo. i ÍNDICE Pág. I. Introducción ............................................................................................... 1 II. El problema ................................................................................................ 3 2.1. Descripción del problema .................................................................. 3 2.2. Definición -
DECOMPOSITION of the RUBBER TREE Hevea Brasiliensis LITTER at TWO DEPTHS
RESEARCH DECOMPOSITION OF THE RUBBER TREE Hevea brasiliensis LITTER AT TWO DEPTHS Thiago Claudino Gréggio1 , Luiz Carlos Assis1, and Ely Nahas1* A B S T R A C T INTRODUCTION The decomposition of soil litter contributes to Maintenance of a forest ecosystem depends on the soil maintaining agricultural sustainability, since the physical-chemical properties and its interaction with nutrients released by microbial activity are the biotic communities that act, on different temporal determinants of the net productivity of the and spatial scales, in cycling of organic material (OM), agroecosystem. The decomposition of rubber tree consequently providing the nutrients necessary for this (Hevea brasiliensis [Willd. ex A. Juss.] Müll. Arg.) system (Beare et al., 1995). The greater source of leaves located on the surface and buried in at 10 cm residues comes from the OM decomposition of leaf depth in Forest and Savannah (Cerradão) soils litter that is accumulated on the surface of the soil, (Oxisols) was studied, with emphasis on the and the dead roots of the plants (Chadwick et al., 1998; production of CO2 and the monthly variation of the Fioretto et al., 2001; Santa Regina and Tarazona, remaining amounts of litter mass, soluble substances, 2001). cellulose and lignin. To evaluate CO2 production, H. brasiliensis leaves were incubated for 30 days in soils Among the decomposing agents, bacteria and fungus from the 0-2 cm and 10-12 cm layers. CO2 production have a preponderant role due to their greater biomass increased in the 0-2 cm layer in comparison to the 10- and respiratory metabolism (Torres et al., 2005). -
In Search of the Amazon: Brazil, the United States, and the Nature of A
IN SEARCH OF THE AMAZON AMERICAN ENCOUNTERS/GLOBAL INTERACTIONS A series edited by Gilbert M. Joseph and Emily S. Rosenberg This series aims to stimulate critical perspectives and fresh interpretive frameworks for scholarship on the history of the imposing global pres- ence of the United States. Its primary concerns include the deployment and contestation of power, the construction and deconstruction of cul- tural and political borders, the fluid meanings of intercultural encoun- ters, and the complex interplay between the global and the local. American Encounters seeks to strengthen dialogue and collaboration between histo- rians of U.S. international relations and area studies specialists. The series encourages scholarship based on multiarchival historical research. At the same time, it supports a recognition of the represen- tational character of all stories about the past and promotes critical in- quiry into issues of subjectivity and narrative. In the process, American Encounters strives to understand the context in which meanings related to nations, cultures, and political economy are continually produced, chal- lenged, and reshaped. IN SEARCH OF THE AMAzon BRAZIL, THE UNITED STATES, AND THE NATURE OF A REGION SETH GARFIELD Duke University Press Durham and London 2013 © 2013 Duke University Press All rights reserved Printed in the United States of America on acid- free paper ♾ Designed by Heather Hensley Typeset in Scala by Tseng Information Systems, Inc. Library of Congress Cataloging-in - Publication Data Garfield, Seth. In search of the Amazon : Brazil, the United States, and the nature of a region / Seth Garfield. pages cm—(American encounters/global interactions) Includes bibliographical references and index. -
The Evolutionary Fate of Rpl32 and Rps16 Losses in the Euphorbia Schimperi (Euphorbiaceae) Plastome Aldanah A
www.nature.com/scientificreports OPEN The evolutionary fate of rpl32 and rps16 losses in the Euphorbia schimperi (Euphorbiaceae) plastome Aldanah A. Alqahtani1,2* & Robert K. Jansen1,3 Gene transfers from mitochondria and plastids to the nucleus are an important process in the evolution of the eukaryotic cell. Plastid (pt) gene losses have been documented in multiple angiosperm lineages and are often associated with functional transfers to the nucleus or substitutions by duplicated nuclear genes targeted to both the plastid and mitochondrion. The plastid genome sequence of Euphorbia schimperi was assembled and three major genomic changes were detected, the complete loss of rpl32 and pseudogenization of rps16 and infA. The nuclear transcriptome of E. schimperi was sequenced to investigate the transfer/substitution of the rpl32 and rps16 genes to the nucleus. Transfer of plastid-encoded rpl32 to the nucleus was identifed previously in three families of Malpighiales, Rhizophoraceae, Salicaceae and Passiforaceae. An E. schimperi transcript of pt SOD-1- RPL32 confrmed that the transfer in Euphorbiaceae is similar to other Malpighiales indicating that it occurred early in the divergence of the order. Ribosomal protein S16 (rps16) is encoded in the plastome in most angiosperms but not in Salicaceae and Passiforaceae. Substitution of the E. schimperi pt rps16 was likely due to a duplication of nuclear-encoded mitochondrial-targeted rps16 resulting in copies dually targeted to the mitochondrion and plastid. Sequences of RPS16-1 and RPS16-2 in the three families of Malpighiales (Salicaceae, Passiforaceae and Euphorbiaceae) have high sequence identity suggesting that the substitution event dates to the early divergence within Malpighiales. -
Fecal Metagenomics for the Simultaneous Assessment of Diet
Srivathsan et al. Frontiers in Zoology (2016) 13:17 DOI 10.1186/s12983-016-0150-4 RESEARCH Open Access Fecal metagenomics for the simultaneous assessment of diet, parasites, and population genetics of an understudied primate Amrita Srivathsan1,2,3*, Andie Ang4, Alfried P. Vogler2,3 and Rudolf Meier1,5 Abstract Background: Rapid habitat loss and degradation are responsible for population decline in a growing number of species. Understanding the natural history of these species is important for designing conservation strategies, such as habitat enhancements or ex-situ conservation. The acquisition of observational data may be difficult for rare and declining species, but metagenomics and metabarcoding can provide novel kinds of information. Here we use these methods for analysing fecal samples from an endangered population of a colobine primate, the banded leaf monkey (Presbytis femoralis). Results: We conducted metagenomics via shotgun sequencing on six fecal samples obtained from a remnant population of P. femoralis in a species-rich rainforest patch in Singapore. Shotgun sequencing and identification against a plant barcode reference database reveals a broad dietary profile consisting of at least 53 plant species from 33 families. The diet includes exotic plant species and is broadly consistent with > 2 years of observational data. Metagenomics identified 15 of the 24 plant genera for which there is observational data, but also revealed at least 36 additional species. DNA traces for the diet species were recovered and identifiable in the feces despite long digestion times and a large number of potential food plants within the rainforest habitat (>700 species). We also demonstrate that metagenomics provides greater taxonomic resolution of food plant species by utilizing multiple genetic markers as compared to single-marker metabarcoding. -
Henry Wickham
SIR HENRY ALEXANDER WICKHAM 1846-1928 Ref. 24 Sir Henry was an explorer and adventurer Born into a middle class family, Henry was who travelled to Nicaragua, Latin America and the eldest son of a solicitor, also Henry, who many another wild lands. He was born on died four years after his birth in the London Friday 29 May 1846 at Haverstock Hill, Cholera epidemic of 1850, leaving Henry and Hampstead, North London, and is buried in his siblings to be raised by his mother, Harriet, Wickham, having held a life-long conviction who followed the millinery trade to support the that his family were the direct descendents of family. William of Wykeham. Henry was born into the age of the adventurer explorer, who considered himself “the instrument of his Maker”, and an atmosphere in which the goals of the British Empire were to civilise the World through the spread of Christianity and free trade. It was also the high point of the Industrial Revolution, where industry flourished by virtue of three basic commodities – steel to make machines, coal to raise the steam to power them, and rubber to provide seals and gaskets, hoses and belts and, in the fullness of time, tyres for the emerging motor car industry. continued ... 1 Henry was an outdoor, roaming sort of lad but no great scholar, so the life of an adventurer suited his temperament admirably. Inspired by contemporary accounts from adventurers and explorers, and in the hope of regaining some fortune for his family, in 1866, aged 20, he travelled to Nicaragua, arriving on 22nd October in the schooner “ Jonathan ”. -
Exploration De La Diversité Des Résistances Génétiques À
Exploration de la diversité des résistances génétiques à la maladie sud-américaine des feuilles de l’hévéa (Microcyclus ulei) par cartographie et génétique d’association au sein de populations naturelles Vincent Le Guen To cite this version: Vincent Le Guen. Exploration de la diversité des résistances génétiques à la maladie sud-américaine des feuilles de l’hévéa (Microcyclus ulei) par cartographie et génétique d’association au sein de populations naturelles. Biologie végétale. Université Montpellier II - Sciences et Techniques du Languedoc, 2008. Français. tel-00564595 HAL Id: tel-00564595 https://tel.archives-ouvertes.fr/tel-00564595 Submitted on 9 Feb 2011 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. UNIVERSITE MONTPELLIER II CENTRE INTERNATIONAL D'ETUDES SUPERIEURES EN SCIENCES AGRONOMIQUES DE MONTPELLIER THÈSE pour l'obtention du diplôme de Doctorat Ecole Doctorale : Systèmes Intégrés en Biologie, Agronomie, Géosciences, Hydrosciences, Environnement Spécialité : Biologie Intégrative des Plantes par Vincent LE GUEN Exploration de la diversité des résistances génétiques à la maladie sud-américaine des feuilles de l'hévéa (Microcyclus ulei ) par cartographie et génétique d'association au sein de populations naturelles soutenue publiquement le 12 décembre 2008 devant le jury composé de J.L. -
Natural Rubber Systems and Climate Change Proceedings and Extended Abstracts from the Online Workshop, 23–25 June 2020
May 2021 FTA WORKING PAPER • 9 Natural rubber systems and climate change Proceedings and extended abstracts from the online workshop, 23–25 June 2020 Salvatore Pinizzotto, Datuk Dr Abdul Aziz b S A Kadir, Vincent Gitz, Jérôme Sainte-Beuve, Lekshmi Nair, Eric Gohet, Eric Penot, Alexandre Meybeck Natural rubber systems and climate change Proceedings and extended abstracts from the online workshop, 23–25 June 2020 The CGIAR Research Program on Forests, Trees and Agroforestry (FTA) Working Paper 9 © 2021 The CGIAR Research Program on Forests, Trees and Agroforestry (FTA) Content in this publication is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0), http://creativecommons.org/licenses/by/4.0/ DOI: 10.17528/cifor/008029 Pinizzotto S, Aziz A, Gitz V, Sainte-Beuve J, Nair L, Gohet E, Penot E and Meybeck A. 2021. Natural rubber systems and climate change: Proceedings and extended abstracts from the online workshop, 23–25 June 2020. Working Paper 9. Bogor, Indonesia: The CGIAR Research Program on Forests, Trees and Agroforestry (FTA). CGIAR Research Program on Forests, Trees and Agroforestry CIFOR Headquarters Jalan CIFOR Situ Gede, Sindang Barang Bogor Barat 16115 Indonesia T +62-251-8622-622 E [email protected] foreststreesagroforestry.org We would like to thank all funding partners who supported this research through their contributions to the CGIAR Fund. For a full list of the ‘CGIAR Fund’ funding partners please see: http://www.cgiar.org/our-funders/ Any views expressed in this publication are those of the authors. They do not necessarily represent the views of The CGIAR Research Program on Forests, Trees and Agroforestry (FTA), the editors, the authors’ institutions, the financial sponsors or the reviewers. -
Evaluating the Development and Potential Ecological Impact of Genetically Engineered Taraxacum Kok-Saghyz
Evaluating the Development and Potential Ecological Impact of Genetically Engineered Taraxacum kok-saghyz DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Brian J. Iaffaldano Graduate Program in Horticulture and Crop Science The Ohio State University 2016 Dissertation Committee: Professor Katrina Cornish, Advisor Professor John Cardina Professor David Francis Professor Allison Snow Copyrighted by Brian J. Iaffaldano 2016 Abstract Natural rubber is a biopolymer with irreplaceable properties, necessary in tires, medical devices and many other applications. Nearly all natural rubber production is dependent on a single species, Hevea brasiliensis. Hevea has several disadvantages, including a long life cycle, epidemic diseases, and rising production costs which have led to interest in developing new sources of rubber with similar quality to Hevea. One species that meets this criterion is Taraxacum kok-saghyz (TK), a widely adapted species of dandelion that can produce substantial amounts of rubber in its roots in an annual growing period. Shortcomings of TK include an inability to compete with many weeds, resulting in poor establishment and yields. In addition, there is variability in the amount of rubber produced, plant vigor, and seed establishment. In order to address these shortcomings, genetic engineering or breeding may be used to introduce herbicide resistance and allocate more resources to rubber production. We have demonstrated stable transformation in Taraxacum species using Agrobacterium rhizogenes to introduce genes of interest as well has hairy root phenotypes. Inoculated roots were subjected to selection by kanamycin and glufosinate and allowed to regenerate into plantlets without any hormonal treatments or additional manipulations. -
El Cultivo Del Hule En México
Libros Técnicos: Serie Forestal Programa Forestal Colegio de Postgraduados EL CULTIVO DEL HULE EN MÉXICO Gustavo E. Rojo Martínez Rosa Martínez Ruiz Jesús Jasso Mata M. en C. José Concepción Castro Robles Rector Lic. Ismael Gámez Robles Secretario General Lic. Marco Antonio Flores Flores Coordinador General Educativo Lic. Carlos Ernesto Villa Panquián Coordinador General Administrativo Dr. Ernesto Guerra García Coordinador de Investigación Lic. Juan Antonio Delgado Morales Coordinador Unidad Mochicahui Lic. Rosario Rochín Napus Coordinador Unidad Los Mochis Lic. María de Lourdes Osuna Moreno Abogada General Ma. Lourdes Burgos Zazueta Vinculación y Extensión Universitaria Libros Técnicos: Serie Forestal El cultivo del Hule en México 1ª edición, México, 2011. D.R. © Gustavo E. Rojo Martínez Rosa Martínez Ruiz Jesús Jasso Mata Diseño de portada: Gustavo E. Rojo Martínez. Apoyo: Elvia N. Rodríguez Sauceda. ISBN: 968-899-345-1 Impreso y hecho en México Printed and made in Mexico Publicado por: Universidad Autónoma Indígena de México Benito Juárez # 39, C. P. 81890 Tels. (698) 89 2 00 42 Ext. 120. Mochicahui, El Fuerte, Sinaloa. www.uaim.edu.mx Colegio de Postgraduados. Campus Montecillo Programa de Forestal Km. 36.5 Carr. Fed. México-Texcoco, Montecillo, Edo. de México Tel.: 01 595 95 2 02 00 Ext. 1887. Tel. Directo 58 04 59 88 Ext. 1887 Fax.: 58 04 59 88 Ext. 1850. Este libro no puede ser fotocopiado ni reproducido total o parcialmente por ningún otro medio o método sin la autorización por escrito de los editores. Libros Técnicos: Serie Forestal -
X-Ray Diffraction Patterns of Hevea, Manihot, and Other Rubbers
U. S. DEPARTMENT OF COMMERCE NATIONAL B UREAU OF STANDARDS RESEARCH PAPER RP1218 Part of Journal of Research of the National Bureau of Standards, Volume 23, July 1939 X.RAY DIFFRACTION PATTERNS OF HEVEA, MANIHOT, AND OTHER RUBBERS By George L. Clark. 1 Siegfried T. Gross.2 and W. Harold Smith ABSTRACT When rubber from Hevea brasiliensis is stretched quickly and exposed to a beam of X-rays, a crystal fiber diffraction pattern is obtained. During previous work, done jointly by the National Bureau of Standards and the University of Illinois on sol and gel fractions of this rubber, no pattern was produced by the stretched sol fraction. With the stretched gel fraction, however, the pattern was sharp and intense. Rubber from Manihot glaziovii also may be separated into sol and gel fractions, and in recent work they, too, have been stretched and examined by X-rays. With the stretched Manihot sol, a few interferences were obtained, but many more resulted with the stretched gel. When crystallized by "freezing" at low t empera tures for 24 hours, the interferences from the gel again outnumbered those from the sol. The X-ray measurements of Manihot rubber agree with those of Hevea rubber and indicate that the same structure exists in each. Rubbers obtained from latices of Funtumia elastica, Cryptostegia grandijiora, and Castilla elastica were also examined. Their structures, too, were like that of Hevea rubber, and the similarity confirms earlier observations made when X-ray technique was less highly developed. In crystallized specimens, the crystals melted within the range of temperatures previously observed with Hevea rubber.