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Alexandru Mihail Florian Tomescu, Ph.D. Curriculum Vitae
Alexandru Mihail Florian Tomescu, Ph.D. Curriculum Vitae Department of Biological Sciences 1 Harpst Street Humboldt State University Arcata, California 95521-8299 USA ORCID: 0000-0002-2351-5002 Phone: (+1) 707-826-3229 (office) / Fax: (+1) 707-826-3201 [email protected] Tomescu Lab Group web page: http://mihaibotany.online/#welcome Humboldt State University faculty web page: http://www.humboldt.edu/~biosci/faculty/tomescu.htm Academic Background Ph.D., Biological Sciences – Environmental and Plant Biology, Ohio University, Athens, Ohio. 2004. Advisor: Dr. Gar W. Rothwell. Late Ordovician - Early Silurian terrestrial biotas of Virginia, Ohio, and Pennsylvania: an investigation into the early colonization of land M.S., Geology (Paleobotany and Palynology), University of Bucharest, Romania. 1993. Advisor: Dr. Ovidiu Dragastan. The palynology of Pliocene coal-bearing deposits of Oltenia (SW Romania) Professional Experience and Appointments 2016-present – Professor, Department of Biological Sciences, Humboldt State University, Arcata CA. 2011-2016 – Associate Professor, Department of Biological Sciences, Humboldt State University, Arcata CA. 2005-2011 – Assistant Professor, Department of Biological Sciences, Humboldt State University, Arcata CA. 2005-2006 – Visiting Scholar (summer), Department of Geological Sciences, Indiana University, Bloomington IN. 1999-2004 – Graduate Teaching Assistant, Department of Environmental and Plant Biology, Ohio University, Athens OH. 1999-2003 – Scientific Imaging Facility technician, Ohio University, Athens OH. 1999 – Archeological field camp supervisor for the National Center for Pluridisciplinary Research, National History Museum of Romania. 1997-1999 – Research team leader, National Center for Pluridisciplinary Research, National History Museum of Romania. 1997-1998 – Adjunct lecturer, Department of Geology and Geophysics, University of Bucharest (Romania). 1996-1997 – Archeological field camp manager for the National Center for Pluridisciplinary Research, National History Museum of Romania. -
Topic-1-Draft-Web15aug2021.Docx Page 1 of 5 Topic One: from The
Topic One: From the First Plants to the Age of Dinosaurs [This is an early draft — strictly a work-in-progress.] Botany lesson: Ancient Oceans and the Beginnings of Life The primeval atmosphere did not have much oxygen — it was thick and acrid from volcanic activity. The first organisms in the ancient oceans were single- celled. The first bacteria consisted of an outer membrane and a few primitive proteins. Some bacteria acquired the ability to capture energy from sunlight — the first photosynthetic bacteria. The earliest photosynthesis was different from what we see today: for 300 million years these original photosynthetic bacteria produced sulfurous gases rather than oxygen. Oxygen accumulated in the air after the development of the early cyanobacteria, which perform photosynthesis but are not part of the Plant Kingdom. These organisms, which originated 2.7 billion years ago, pumped oxygen into the atmosphere over a period of one billion years. You probably learned in school that photosynthesis captures energy from sunlight and converts carbon dioxide and water to sugar and oxygen. This process was the key to plant and animal evolution and is still the basis of life on our planet today. At one time, the oxygen in the atmosphere rose to 35%, before settling back to the 21% we have today (about 250 million years ago). Oxygen is the third most abundant element in the universe. The cyanobacteria were joined by other photosynthetic organisms — the red, brown, and green algae. The algae whose cells had both a nucleus and chloroplasts became the earliest members of the Plant Kingdom. -
State of Wet Tropics Report 2013-2014
STATE OF THE WET TROPICS REPORT 2013–2014 State of Wet Tropics Management Authority 2013-2014 Ancient, threatened and endemic plants of the Wet Tropics World Heritage Area Purpose of the report Each year the Wet Tropics Management Authority prepares a report on the administration of the Act during the year, fi nancial statements for the year, and a report on the state of Area. This State of Wet Tropics report satisfi es the requirements of Queensland’s Wet Tropics World Heritage Protection and Management Act 1993 and the Commonwealth’s Wet Tropics of Queensland World Heritage Conservation Act 1994. Public availability This publication can be accessed and downloaded from our website at www.wettropics.gov.au Alternatively, hard copies of this publication can be obtained by emailing [email protected] Interpreter service statement The Wet Tropics Management Authority is committed to providing accessible services to people from all culturally and linguistically diverse backgrounds. If you have diffi culty in understanding this report and need to access this document in a language other than English, please call the Translating and Interpreting Service (TIS National) on 131 450 and ask them to telephone the Queensland Government Library Services on +61 7 3224 8412. © Wet Tropics Management Authority 2014 Licence This report is licensed under a Creative Commons Attribution (CC BY) 3.0 Australia licence. CC BY Licence Summary Statement In essence, you are free to copy, communicate and adapt this annual report, as long as you attribute the work to the Wet Tropics Management Authority. To view a copy of this licence, visit www.creativecommons.org/licenses/by/3.0/au/deed.en Attribution Content from this annual report should be attributed as: Wet Tropics Management Authority (2014) State of Wet Tropics Report 2013/14: Ancient, threatened and endemic plants of the Wet Tropics World Heritage Area. -
Systematic Revision of Pteris and Ecology of Ferns in Lowland Tropical
SYSTEMATIC REVISION OF PTERIS L. IN TROPICAL AFRICA AND ECOLOGY OF FERNS AND LYCOPHYTES IN LOWLAND TROPICAL RAINFORESTS Dissertation Zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaft des Fachbereich 3: Mathematik/Naturwissenschaften der Universität Koblenz-Landau Germany October 2012 Peris Wangari Kamau Referent: Prof. Dr. Eberhard Fischer Korreferent: Prof. Dr. Maximilian Weigend SYSTEMATIC REVISION OF PTERIS L. IN TROPICAL AFRICA AND ECOLOGY OF FERNS AND LYCOPHYTES IN LOWLAND TROPICAL RAINFORESTS Dissertation Zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaft des Fachbereich 3: Mathematik/Naturwissenschaften der Universität Koblenz-Landau Germany October 2012 Peris Wangari Kamau Referent: Prof. Dr. Eberhard Fischer Korreferent: Prof. Dr. Maximilian Weigend ii TABLE OF CONTENTS TABLE OF CONTENTS .................................................................................................... III LIST OF FIGURES ............................................................................................................. VI LIST OF TABLES .............................................................................................................. VII LIST OF ACRONYMS ..................................................................................................... VIII SUMMARY .......................................................................................................................... IX CHAPTER 1. GENERAL INTRODUCTION ..................................................................... -
Early Evolution of the Vascular Plant Body Plan — the Missing Mechanisms
Available online at www.sciencedirect.com ScienceDirect Early evolution of the vascular plant body plan — the missing mechanisms 1 2 3 Alexandru MF Tomescu , Sarah E Wyatt , Mitsuyasu Hasebe and 2,4 Gar W Rothwell The complex body plan of modern vascular plants evolved by tracheophytes are polysporangiophytes, i.e. plants with modification of simple systems of branching axes which branched sporophytes, but the polysporangiophytes also originated from the determinate vegetative axis of a bryophyte- include extinct lineages that did not produce vascular grade ancestor. Understanding body plan evolution and tissue (i.e. xylem with tracheids as conducting elements homologies has implications for land plant phylogeny and and phloem) [2]. Early polysporangiophytes had simple requires resolution of the specific developmental changes and sporophytes consisting of undifferentiated, dichotomously their evolutionary sequence. The branched sporophyte may branching axes [1,3]. Nevertheless, the evolution of the have evolved from a sterilized bryophyte sporangium, but branched sporophyte paved the way to indeterminate prolongation of embryonic vegetative growth is a more modular growth which, in concert with the evolution of parsimonious explanation. Research in the bryophyte model highly specialized conductive tissues (xylem and phloem), system Physcomitrella points to mechanisms regulating led to nutritional independence of the diploid phase. sporophyte meristem maintenance, indeterminacy, branching Combined with subsequent evolution of specialized vege- and the transition to reproductive development. These results tative organs (stems, leaves, roots) these led to the plant can form the basis for hypotheses to identify and refine the sporophyte-sustained ecosystems that are ubiquitous on nature and sequence of changes in development that occurred land today. -
Program Book
PROGRAM Padua, Italy, 26–31 August 2014 EPPC 2014 PROGRAM Tuesday, 26th August, 2014 17.00–19.30: REGISTRATION DESK at the Historical Botanical Garden 19.00-20.30: WELCOME COCKTAIL, at the Historical Botanical Garden Wednesday, 27th August, 2014 9.30–11.30: REGISTRATION DESK in the the Aula Magna of Palazzo del Bo (the main University) 10.00–12.00: OPENING CEREMONY in the the Aula Magna of Palazzo del Bo (the main University) 10.00–10.05: Edoardo Martinetto : opening of the conference 10.05–10.15: Address of the representants of the CNR and Padova University 10.15–10.25: Address of the president of the IOP and IFPS 10.25–10.45: Guido Roghi & Evelyn Kustatscher : presentation of the conference and of the book "Palaeobotany in Italy" 10.45–11.00: Delivery of the W.H. Jongmans award 11.00–12.00: Telmo Pievani : Petrified trees and abominable mysteries: palaeobotany in Darwin 12.30–16.30: REGISTRATION DESK at the new Department of Geoscience, via Gradenigo, 6 13.00–14.30: LUNCH at the new Department of Geoscience, via Gradenigo, 6 AULA 1F+1E (connected) S8. Pollen morphology and development (convenors: Nina Gabarayeva, Dmitriy A. Britski & Olga Gavrilova) 14.30–15.00: Gabarayeva, Nina; Grigorjeva, Valentina (keynote): Common fea- tures of exine development in spore, gymnosperm and angiosperm plants, and experimental modelling of exine-like structures: self-assembly afoot 11 EPPC 2014 Padua, Italy - 26–31 August 2014 Program 15.00–15.15: Britski, Dmitri A.; Grygoryeva, Valentina V.; Korobkov, Alexandr A.: Pollen morphology of Primula L. -
Plant Biology - Advanced
Plant Biology - Advanced Douglas Wilkin, Ph.D. Barbara Akre Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required) AUTHORS Douglas Wilkin, Ph.D. To access a customizable version of this book, as well as other Barbara Akre interactive content, visit www.ck12.org EDITOR Douglas Wilkin, Ph.D. CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook materials for the K-12 market both in the U.S. and worldwide. Using an open-source, collaborative, and web-based compilation model, CK-12 pioneers and promotes the creation and distribution of high-quality, adaptive online textbooks that can be mixed, modified and printed (i.e., the FlexBook® textbooks). Copyright © 2016 CK-12 Foundation, www.ck12.org The names “CK-12” and “CK12” and associated logos and the terms “FlexBook®” and “FlexBook Platform®” (collectively “CK-12 Marks”) are trademarks and service marks of CK-12 Foundation and are protected by federal, state, and international laws. Any form of reproduction of this book in any format or medium, in whole or in sections must include the referral attribution link http://www.ck12.org/saythanks (placed in a visible location) in addition to the following terms. Except as otherwise noted, all CK-12 Content (including CK-12 Curriculum Material) is made available to Users in accordance with the Creative Commons Attribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) License (http://creativecommons.org/ licenses/by-nc/3.0/), as amended and updated by Creative Com- mons from time to time (the “CC License”), which is incorporated herein by this reference. -
How to Settle in Madagascar? Towards a Better Understanding of the Biogeographical History of the Malagasy Ferns
Université Pierre et Marie Curie Ecole doctorale 227 « Sciences de la Nature et de l’Homme : écologie et évolution » UMR 7205 ISYEB : Institut de Systématique, Evolution, Biodiversité How to settle in Madagascar? Towards a better understanding of the biogeographical history of the Malagasy ferns. Par Lucie BAURET Thèse de doctorat de Systématique et Evolution Dirigée par : Marc-André SELOSSE, Professeur au Muséum national d'Histoire naturelle, HDR Germinal ROUHAN, Maître de conférences au Muséum national d'Histoire naturelle Myriam GAUDEUL, Maître de conférences au Muséum national d'Histoire naturelle Présentée et soutenue publiquement le Mardi 5 Décembre 2017 Devant un jury composé de : Eric QUEINNEC Professeur, UPMC Président du jury Petra KORALL Associate Professor, Uppsala University Rapportrice Guillaume BESNARD Chargé de Recherche, CNRS Rapporteur Valérie PONCET Chargée de Recherche, IRD Examinatrice Marc-André SELOSSE Professeur, MNHN Directeur de thèse Germinal ROUHAN Maître de Conférences, MNHN Directeur de thèse A mes parents, ma famille, mes ami-e-s, mes collègues, merci pour votre soutien. Ackowledgements - Remerciements Ce travail de trois ans n’aurait pas été possible sans la contribution précieuse de nombreuses personnes, sur plusieurs plans qu’ils soient professionnels ou personnels. Je remercie premièrement mes encadrants et mon directeur de thèse, Germinal, Myriam et Marc-André, pour m’avoir donné cette opportunité unique qu’est le doctorat au Muséum. J’aurai vécu une expérience de trois ans avec vous, non sans difficultés, mais qui aura été professionnellement très enrichissante. Je mentionnerai tout particulièrement Germinal, que je remercie pour avoir partagé avec moi son expérience du terrain à Madagascar. To the jury members, thank you very much to have accepted my invitation. -
Review the Ethnobotany of Ferns and Lycophytes H. A
FERN GAZ. 20(1):1-13. 2015 1 REVIEW THE ETHNOBOTANY OF FERNS AND LYCOPHYTES H. A. KELLER1 & G. T. PRANCE2 1 Consejo Nacional de Investigaciones Científicas y Tecnológicas, Instituto de Botánica del Nordeste, Sargento Cabral 2131, Corrientes, Argentina. 2 Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK, corresponding author: [email protected] Keywords: Fern ethnobotany, ethnopteridology, archaeobotany, medicinal plants, ornamental plants ABSTRACT A summary is presented of the most important ways in which ferns have been important to humanity. Many of these categories are positive such as the use of ferns for subsistence. On the negative side is their role as weeds and as bearers of substances harmful to human health. Many of the traditional uses such as for medicines have been transferred to modern life as societies have modernized. Some uses have even become important in industrial society, for example in the assay of new medicines. INTRODUCTION Ferns are distributed in all climate zones of the planet, but have a greater diversity in the tropics (Smith et al., 2006; Strasburger et al., 2003). The discipline that studies the relationship between the uses of ferns and humans has been termed ethnopteridology, and it was well explained and amplified by Boom (1985). These reciprocal interactions may or may not be related to a particular use category in family or regional cultures, but the concept of ethnobotany goes beyond the utilitarian spheres of economics and uses to include symbolic values, nomenclature, religion and also the place that particular plants occupy in the cosmology of peoples. Strictly economic aspects of uses are addressed by the discipline of economic botany. -
A New Anatomically-Preserved Plant from the Lower Devonian of Quebec (Canada): Implications for Euphyllophyte Phylogeny and Early Evolution of Structural Complexity
A NEW ANATOMICALLY-PRESERVED PLANT FROM THE LOWER DEVONIAN OF QUEBEC (CANADA): IMPLICATIONS FOR EUPHYLLOPHYTE PHYLOGENY AND EARLY EVOLUTION OF STRUCTURAL COMPLEXITY By Selin Toledo A Thesis Presented to The Faculty of Humboldt State University In Partial Fulfillment of the Requirements for the Degree Master of Science in Biology Committee Membership Dr. Alexandru M. F. Tomescu, Committee Chair Dr. Paul Kenrick, Committee Member Dr. Michael Mesler, Committee Member Dr. Gar Rothwell, Committee Member Dr. Erik Jules, Program Graduate Coordinator May 2018 ABSTRACT A NEW ANATOMICALLY-PRESERVED PLANT FROM THE LOWER DEVONIAN OF QUEBEC (CANADA): IMPLICATIONS FOR EUPHYLLOPHYTE PHYLOGENY AND EARLY EVOLUTION OF STRUCTURAL COMPLEXITY Selin Toledo An abrupt transition in the fossil record between Early Devonian plants with simple structure and structurally-complex later Devonian plants, has frustrated efforts to understand patterns of phylogeny across the Early/Middle Devonian boundary and the evolution of complex forms. Both these aspects have important implications for lignophyte and seed plant evolution. In the first chapter, I evaluate phylogenetic relationships between the earliest seed plants, Aneurophytales, and Stenokoleales, using comprehensive taxon sampling (28 species, including all relevant permineralized species) and a set of 40 discrete and nine continuous morpho- anatomical characters. Analysis of this dataset supports the three traditional taxonomic groups (seed plants, Aneurophytales, and Stenokoleales) and place Stenokoleales among the lignophytes. In the second chapter, I characterize a new fossil plant from the Lower Devonian of Gaspé (Canada), Kenricrana bivena gen. et sp. nov., and I integrate it in the phylogenetic matrix developed in the first chapter. Kenricrana shares features with the progymnosperms, Stenokoleales, and early seed plants.