FABADJ. Pharm. Sci., 29, 93-107, 2004
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Pollination Ecology Summary
Pollination Ecology Summary Prof. em. Klaus Ammann, Neuchâtel [email protected] June 2013 Ohne den Pollenübertragungs-Service blütenbesuchender Tiere könnten sich viele Blütenpanzen nicht geschlechtlich fortpanzen. Die komplexen und faszinierenden Bestäubungsvorgänge bei Blütenpanzen sind Ausdruck von Jahrmillionen von Selektionsvorgängen, verbunden mit Selbstorganisation der Lebewesen; eine Sicht, die auch Darwin schon unterstützte. Bei vielen zwischenartlichen Beziehungen haben sich zwei oder auch mehrere Arten in ihrer Entwicklung gegenseitig beeinusst. Man spricht hier von sogenannter Coevolution. Deutlich ist die Coevolution auch bei verschiedenen Bestäubungssystemen und -mechanismen, die von symbiontischer bis parasitischer Natur sein können. Die Art-Entstehung, die Vegetationsökologie und die Entstehung von Kulturpanzen sind eng damit verbunden Veranstalter: Naturforschende Gesellschaft Schaffhausen 1. Pollination Ecology Darwin http://en.wikipedia.org/wiki/Pollination_syndrome http://www.cas.vanderbilt.edu/bioimages/pages/pollination.htm Fenster, C.B., Armbruster, W.S., Wilson, P., Dudash, M.R., & Thomson, J.D. (2004) Pollination syndromes and floral specialization. Annual Review of Ecology Evolution and Systematics, 35, pp 375-403 http://www.botanischergarten.ch/Pollination/Fenster-Pollination-Syndromes-2004.pdf invitation to browse in the website of the Friends of Charles Darwin http://darwin.gruts.com/weblog/archive/2008/02/ Working Place of Darwin in Downe Village http://www.focus.de/wissen/wissenschaft/wissenschaft-darwin-genoss-ein-suesses-studentenleben_aid_383172.html Darwin as a human being and as a scientist Darwin, C. (1862), On the various contrivances by which orchids are fertilized by insects and on the good effects of intercrossing The Complete Work of Charles Darwin online, Scanned, OCRed and corrected by John van Wyhe 2003; further corrections 8.2006. -
Botanischer Garten Der Universität Tübingen
Botanischer Garten der Universität Tübingen 1974 – 2008 2 System FRANZ OBERWINKLER Emeritus für Spezielle Botanik und Mykologie Ehemaliger Direktor des Botanischen Gartens 2016 2016 zur Erinnerung an LEONHART FUCHS (1501-1566), 450. Todesjahr 40 Jahre Alpenpflanzen-Lehrpfad am Iseler, Oberjoch, ab 1976 20 Jahre Förderkreis Botanischer Garten der Universität Tübingen, ab 1996 für alle, die im Garten gearbeitet und nachgedacht haben 2 Inhalt Vorwort ...................................................................................................................................... 8 Baupläne und Funktionen der Blüten ......................................................................................... 9 Hierarchie der Taxa .................................................................................................................. 13 Systeme der Bedecktsamer, Magnoliophytina ......................................................................... 15 Das System von ANTOINE-LAURENT DE JUSSIEU ................................................................. 16 Das System von AUGUST EICHLER ....................................................................................... 17 Das System von ADOLF ENGLER .......................................................................................... 19 Das System von ARMEN TAKHTAJAN ................................................................................... 21 Das System nach molekularen Phylogenien ........................................................................ 22 -
Downregulating the Sucrose Transporter Vpsut1 in Verbascum Phoeniceum Does Not Inhibit Phloem Loading
Downregulating the sucrose transporter VpSUT1 in Verbascum phoeniceum does not inhibit phloem loading Cankui Zhang and Robert Turgeon1 Department of Plant Biology, Cornell University, Ithaca, NY 14853 Edited by Maarten J. Chrispeels, University of California San Diego, La Jolla, CA, and approved September 16, 2009 (received for review April 15, 2009) Sucrose is loaded into the phloem in the minor veins of leaves raffinose and stachyose. The presence of these abundant plas- before export. Two active, species-specific loading mechanisms modesmata raises the possibility that, in RFO plants, sucrose have been proposed. One involves transporter-mediated sucrose stays within the symplast all the way from the mesophyll cells to transfer from the apoplast into the sieve element-companion cell the SEs, so-called symplastic loading. complex, so-called apoplastic loading. In the putative second mech- The concept of apoplastic loading, mediated by transporters, anism, sucrose follows an entirely symplastic pathway, and the is intuitively attractive because it employs the proton motive solute concentration is elevated by the synthesis of raffinose and force to transfer sucrose into the phloem against a thermody- stachyose in the phloem, not by transporter activity. Several sucrose- namic gradient. Symplastic loading, on the other hand, has been transporting plants have been shown to be apoplastic loaders by viewed with more caution because symplastic flux, through the downregulating sucrose transporter 1 (SUT1), leading to accumula- cytoplasmic sleeve of plasmodesmata, is passive; there is no tion of sugars and leaf chlorosis. In this study we compared the effect obvious direct mechanism for establishing an uphill concentra- of downregulating SUT1 in Nicotiana tabacum, a sucrose transporter, tion gradient (13–16). -
Pollen and Stamen Mimicry: the Alpine Flora As a Case Study
Arthropod-Plant Interactions DOI 10.1007/s11829-017-9525-5 ORIGINAL PAPER Pollen and stamen mimicry: the alpine flora as a case study 1 1 1 1 Klaus Lunau • Sabine Konzmann • Lena Winter • Vanessa Kamphausen • Zong-Xin Ren2 Received: 1 June 2016 / Accepted: 6 April 2017 Ó The Author(s) 2017. This article is an open access publication Abstract Many melittophilous flowers display yellow and Dichogamous and diclinous species display pollen- and UV-absorbing floral guides that resemble the most com- stamen-imitating structures more often than non-dichoga- mon colour of pollen and anthers. The yellow coloured mous and non-diclinous species, respectively. The visual anthers and pollen and the similarly coloured flower guides similarity between the androecium and other floral organs are described as key features of a pollen and stamen is attributed to mimicry, i.e. deception caused by the flower mimicry system. In this study, we investigated the entire visitor’s inability to discriminate between model and angiosperm flora of the Alps with regard to visually dis- mimic, sensory exploitation, and signal standardisation played pollen and floral guides. All species were checked among floral morphs, flowering phases, and co-flowering for the presence of pollen- and stamen-imitating structures species. We critically discuss deviant pollen and stamen using colour photographs. Most flowering plants of the mimicry concepts and evaluate the frequent evolution of Alps display yellow pollen and at least 28% of the species pollen-imitating structures in view of the conflicting use of display pollen- or stamen-imitating structures. The most pollen for pollination in flowering plants and provision of frequent types of pollen and stamen imitations were pollen for offspring in bees. -
New National and Regional Vascular Plant Records, 3 Alla V
Botanica Pacifica. A journal of plant science and conservation. 2021. 10(1): 85–108 DOI: 10.17581/bp.2021.10110 Findings to the flora of Russia and adjacent countries: New national and regional vascular plant records, 3 Alla V. Verkhozina1*, Roman Yu. Biryukov2, Elena S. Bogdanova3, Victoria V. Bondareva3, Dmitry V. Chernykh2,4, Nikolay V. Dorofeev1, Vladimir I. Dorofeyev5, Alexandr L. Ebel6,7, Petr G. Efimov5, Andrey N. Efremov8, Andrey S. Erst6,7, Alexander V. Fateryga9, Natalia 10,11 12 4,6 1 Siberian Institute of Plant Physiology and S. Gamova , Valerii A. Glazunov , Polina D. Gudkova , Inom J. Biochemistry SB RAS, Irkutsk, Russia Juramurodov13,14,15, Olga А. Kapitonova16,17, Alexey A. Kechaykin4, 2 Institute for Water and Environmental Anatoliy A. Khapugin18,19, Petr A. Kosachev20, Ludmila I. Krupkina5, Problems SB RAS, Barnaul, Russia 21 18 15,22 3 Mariia A. Kulagina , Igor V. Kuzmin , Lian Lian , Guljamilya A. Institute of Ecology of the Volga River 23 23 24 Basin – Branch of Samara Federal Research Koychubekova , Georgy A. Lazkov , Alexander N. Luferov , Olga Scientific Center RAS, Togliatti, Russia A. Mochalova25, Ramazan A. Murtazaliev26,27, Viktor N. Nesterov3, 4 Altai State University, Barnaul, Russia Svetlana A. Nikolaenko12, Lyubov A. Novikova28, Svetlana V. Ovchin- 5 Komarov Botanical Institute RAS, nikova7, Nataliya V. Plikina29, Sergey V. Saksonov†, Stepan A. Sena- St. Petersburg, Russia tor30, Tatyana B. Silaeva31, Guzyalya F. Suleymanova32, Hang Sun14, 6 National Research Tomsk State University, Dmitry V. Tarasov1, Komiljon Sh. Tojibaev13, Vladimir M. Vasjukov3, Tomsk, Russia 15,22 7 2,33 7 Wei Wang , Evgenii G. Zibzeev , Dmitry V. -
Pollination Ecology of Flowering Plants
http://en.spii.ir/seSPII/default.aspx?page=Document&app=Documents&docId=11507 University Lectures, 30. 5. 2016 Invited by Prof. Behzad Ghareyazie, Founder of ABRII Prof. em. Klaus Ammann, University of Bern, Switzerland Lecture 6 in Teheran Pollination Ecology of Flowering Plants [email protected] Pollination Ecology http://en.wikipedia.org/wiki/Pollination_syndrome http://www.cas.vanderbilt.edu/bioimages/pages/pollination.htm Fenster, C.B., Armbruster, W.S., Wilson, P., Dudash, M.R., & Thomson, J.D. (2004) Pollination syndromes and floral specialization. Annual Review of Ecology Evolution and Systematics, 35, pp 375-403 http://www.ask-force.org/web/Pollination/Fenster-Pollination-Syndromes-2004.pdf 1.6.1. incentive: Sources of nectar and pollen INCENTIVES FOR VISITING FLOWERS Plants can not move from one location to another, thus many flowers have evolved to attract animals to transfer pollen between individuals in dispersed populations. Flowers that are insect-pollinated are called entomophilous; literally "insect-loving" in Latin. They can be highly modified along with the pollinating insects by co-evolution. Flowers commonly have glands called nectaries on various parts that attract animals looking for nutritious nectar. Birds and bees have color vision, enabling them to seek out "colorful" flowers. Some flowers have patterns, called nectar guides, that show pollinators where to look for nectar; they may be visible only under ultraviolet light, which is visible to bees and some other insects. Flowers also attract pollinators by scent and some of those scents are pleasant to our sense of smell. Not all flower scents are appealing to humans, a number of flowers are pollinated by insects that are attracted to rotten flesh and have flowers that smell like dead animals, often called Carrion flowers including Rafflesia, the titan arum, and the North American pawpaw (Asimina triloba). -
6. GEO-Tag Der Artenvielfalt Griffner Schlossberg Und Griffner See, Kärnten 11./12
©Naturwissenschaftlicher Verein für Kärnten, Austria, download unter www.biologiezentrum.at Carinthia II B 1947114. Jahrgang B Seiten 537-590 B Klagenfurt 2004 537 6. GEO-Tag der Artenvielfalt Griffner Schlossberg und Griffner See, Kärnten 11./12. Juni 2004 Von Christian WIESER, Christian K0MP0SCH, Klaus KRAINER & Johann WAGNER Schlagworte: Keywords: GEO-Tag, Artenvielfalt, Griffner Schlossberg, Griffner See, Kärnten. GEO-day, biodiversity, Griffner Schlossberg, Griffner See, Zusammenfassung: Carinthia, Austria. Am 6. GEO-Tag der Artenvielfalt (11.-12. Juni 2004) waren insgesamt mehr als 100 Wissenschafter und Hobbyforscher beteiligt. Während der 24-stün- Summary: digen Erhebung am Griffner Schlossberg und Griffner See (Bezirk Völker- More than 100 scientists and ama- markt, Kärnten) wurden 2398 Arten aus 34 Pflanzen-, Tier- und Pilzgruppen teur researchers were involved in nachgewiesen. the 6th GEO-day of biodiversity, Die Marktgemeinde Griffen ist damit nicht nur im bundesland- sondern auch which took place on the 11* to 12th im mitteleuropaweiten Vergleich als hot-spot der Biodiversität bezeichnen. June 2004 in the Griffner castle- Aus naturschutzfachlicher Sicht erlangen die Lebensgemeinschaften der mountain and lake. During a period Felswände, Höhlen, Laubwälder und Verlandungszonen hohe Bedeutung. of 24 hours 2349 species of 34 plant-, Bemerkenswert ist der Erstnachweis einer Sackspinne für Österreich, zu- animal- and fungus-groups could be dem können 8 Schmetterlings-, 4 Spinnenarten sowie eine Wanzenart erst- recorded. Due to this high number mals für Kärnten genannt werden! of species the district of Griffen is Auch die Öffentlichkeitsarbeit kann durch das hohe Engagement der Ge- revealed as a hot-spot of biodiver- meinde, die umfangreichen Schulaktionen und die enge Zusammenarbeit sity with national and central-euro- mit der Presse als voller Erfolg bezeichnet werden. -
Phloem Loading in Verbascum Phoeniceum L. Depends on the Synthesis of Raffinose- Family Oligosaccharides
Phloem loading in Verbascum phoeniceum L. depends on the synthesis of raffinose- family oligosaccharides Ashlee McCaskill and Robert Turgeon* Department of Plant Biology, Cornell University, Ithaca, NY 14853 Edited by Maarten J. Chrispeels, University of California at San Diego, La Jolla, CA, and approved September 17, 2007 (received for review August 5, 2007) Phloem loading is the initial step in photoassimilate export and the as yet unproven, component of the model is that RFOs exceed one that creates the driving force for mass flow. It has been the size exclusion limit of the plasmodesmata between bundle proposed that loading occurs symplastically in species that trans- sheath cells and intermediary cells, which prevents their move- locate carbohydrate primarily as raffinose family oligosaccharides ment back to the bundle sheath and vectorizes the transport (RFOs). In these plants, dense fields of plasmodesmata connect process out of the leaf. bundle sheath cells to specialized companion cells (intermediary If the synthesis of RFOs is an essential component of the cells) in the minor veins. According to the polymer trap model, phloem-loading mechanism, as the polymer trap model suggests, advanced as a mechanism of symplastic loading, sucrose from the then down-regulating the pathway that produces these sugars by mesophyll diffuses into intermediary cells and is converted there to molecular-genetic techniques should inhibit long-distance trans- RFOs. This process keeps the sucrose concentration low and, port. Although various molecular techniques have provided because of the larger size of the RFOs, prevents back diffusion. To compelling evidence in favor of apoplastic loading in a number test this model, the RFO pathway was down-regulated in Verbas- of model plants (10–13), this approach has not been possible cum phoeniceum L. -
Sites of Importance for Nature Conservation Wales Guidance (Pdf)
Wildlife Sites Guidance Wales A Guide to Develop Local Wildlife Systems in Wales Wildlife Sites Guidance Wales A Guide to Develop Local Wildlife Systems in Wales Foreword The Welsh Assembly Government’s Environment Strategy for Wales, published in May 2006, pays tribute to the intrinsic value of biodiversity – ‘the variety of life on earth’. The Strategy acknowledges the role biodiversity plays, not only in many natural processes, but also in the direct and indirect economic, social, aesthetic, cultural and spiritual benefits that we derive from it. The Strategy also acknowledges that pressures brought about by our own actions and by other factors, such as climate change, have resulted in damage to the biodiversity of Wales and calls for a halt to this loss and for the implementation of measures to bring about a recovery. Local Wildlife Sites provide essential support between and around our internationally and nationally designated nature sites and thus aid our efforts to build a more resilient network for nature in Wales. The Wildlife Sites Guidance derives from the shared knowledge and experience of people and organisations throughout Wales and beyond and provides a common point of reference for the most effective selection of Local Wildlife Sites. I am grateful to the Wales Biodiversity Partnership for developing the Wildlife Sites Guidance. The contribution and co-operation of organisations and individuals across Wales are vital to achieving our biodiversity targets. I hope that you will find the Wildlife Sites Guidance a useful tool in the battle against biodiversity loss and that you will ensure that it is used to its full potential in order to derive maximum benefit for the vitally important and valuable nature in Wales. -
New Jersey Strategic Management Plan for Invasive Species
New Jersey Strategic Management Plan for Invasive Species The Recommendations of the New Jersey Invasive Species Council to Governor Jon S. Corzine Pursuant to New Jersey Executive Order #97 Vision Statement: “To reduce the impacts of invasive species on New Jersey’s biodiversity, natural resources, agricultural resources and human health through prevention, control and restoration, and to prevent new invasive species from becoming established.” Prepared by Michael Van Clef, Ph.D. Ecological Solutions LLC 9 Warren Lane Great Meadows, New Jersey 07838 908-637-8003 908-528-6674 [email protected] The first draft of this plan was produced by the author, under contract with the New Jersey Invasive Species Council, in February 2007. Two subsequent drafts were prepared by the author based on direction provided by the Council. The final plan was approved by the Council in August 2009 following revisions by staff of the Department of Environmental Protection. Cover Photos: Top row left: Gypsy Moth (Lymantria dispar); Photo by NJ Department of Agriculture Top row center: Multiflora Rose (Rosa multiflora); Photo by Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Top row right: Japanese Honeysuckle (Lonicera japonica); Photo by Troy Evans, Eastern Kentucky University, Bugwood.org Middle row left: Mile-a-Minute (Polygonum perfoliatum); Photo by Jil M. Swearingen, USDI, National Park Service, Bugwood.org Middle row center: Canadian Thistle (Cirsium arvense); Photo by Steve Dewey, Utah State University, Bugwood.org Middle row right: Asian -
An Illustrated Key to the Alberta Figworts & Allies
AN ILLUSTRATED KEY TO THE ALBERTA FIGWORTS & ALLIES OROBANCHACEAE PHRYMACEAE PLANTAGINACEAE SCROPHULARIACEAE Compiled and writen by Lorna Allen & Linda Kershaw April 2019 © Linda J. Kershaw & Lorna Allen Key to Figwort and Allies Families In the past few years, the families Orobanchaceae, Plantaginaceae and Scrophulariaceae have under- gone some major revision and reorganization. Most of the species in the Scrophulariaceae in the Flora of Alberta (1983) are now in the Orobanchaceae and Plantaginaceae. For this reason, we’ve grouped the Orobanchaceae, Plantaginaceae, Phrymaceae and Scrophulariaceae together in this fle. In addition, species previously placed in the Callitrichaceae and Hippuridaceae families are now included in the Plantaginaceae family. 01a Plants aquatic, with many or all leaves submersed and limp when taken from the 1a water; leaves paired or in rings (whorled) on the stem, all or mostly linear (foating leaves sometimes spatula- to egg-shaped); fowers tiny (1-2 mm), single or clustered in leaf axils; petals and sepals absent or sepals fused in a cylinder around the ovary; stamens 0-1 . Plantaginaceae (in part) . - Callitriche, Hippuris 01b Plants emergent wetland species (with upper stems and leaves held above water) or upland species with self-supporting stems and leaves; leaves not as above; fowers larger, single or in clusters; petals and sepals present; stamens 2-4 (Hippuris sometimes emergent, but leaves/ fowers distinctive) . .02 2a 02a Plants without green leaves . Orobanchaceae (in part) . - Aphyllon [Orobanche], Boschniakia 02b Plants with green leaves . 03 03a Leaves all basal (sometimes small, unstalked stem leaves present), undivided (simple), with edges ± smooth or blunt-toothed; fowers small (2-5 mm wide), corollas radially symmetrical, sometimes absent. -
Hungary in Summer
Hungary in Summer Naturetrek Tour Report 7 - 14 August 2018 Eastern Hedgehog by Keith Warmington Brown Hairstreak by Andy Harding Night Heron by Andy Harding Lesser Spotted Woodpecker by Keith Warmington Report compiled by Andy Harding Images courtesy of Keith Warmington & Andy Harding Naturetrek Mingledown Barn Wolf's Lane Chawton Alton Hampshire GU34 3HJ UK T: +44 (0)1962 733051 E: [email protected] W: www.naturetrek.co.uk Tour Report Hungary in Summer Tour participants: Andy Harding & Gerard Gorman (leaders) with 13 Naturetrek clients Day 1 Tuesday 7th August Andy met group members who were flying from Heathrow Airport Terminal 3 before a punctual take-off and an early arrival in Budapest. Unfortunately there was a delay before we were all re-united with our luggage, but eventually we met Gerard and New Zealander, Jenny and were soon speeding north in our comfortable minibus, driven by Norbert. The weather was sunny and warm. We had a picnic stop in Budgyi before a natural history stop at the northern end of Kiskunsag National Park. While the main attraction was the dozen Great Bustards, there were plenty of butterflies on the roadside including Short-tailed Blue and Chestnut Heath. As we travelled on there were a couple of close fly-overs by Marsh Harriers and Turtle Doves. In open country we stopped alongside a farmstead with a huge herd of cattle in a vast pen alongside the road. Bee-eaters cruised around, with Tree Sparrow and Crested Lark also attracting attention. New butterflies were the familiar Red Admiral and Small Heath.