DOCSLIB.ORG

D Senv BENNAOUM Zineb .Pdf

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

N° d’ordre… الجمهورية الجزائرية الديمقراطية الشعبية RÉPUBLIQUE ALGÉRIENNE DÉMOCRATIQUE ET POPULAIRE MINISTÈRE DE L’ENSEIGNEMENT SUPERIEUR ET DE LA RECHERCHE SCIENTIFIQUE DDEE DDOOCC TTOORRAATT UNIVERSITÉ DJILLALI LIABES DE SIDI BEL ABBES FACULTÉ DES SCIENCES DE LA NATURE ET DE LA VIE Département des Sciences de l’Environnement TTHHEESSEE DDEE DDOOCCTTOORRAATT EENN SSCCII EENNCCEESS Présentée par Melle BENNAOUM Zineb Spécialité : Sciences de l’environnement Option : Biodiversité végétale méditerranéenne : inventaire, valorisation et restauration In titulé Enveloppe écologique, caractères microphytodermiques et effets allélopathiques des composés phytochimiques des espèces du genre Ruta dans la région nord occidentale oranaise. Soutenue le 27/11/2018 Devant l’honorable jury composé de : Président : Dr. MAHROUG Samira MC(A). Université Djillali Liabès S.B.A Examinateurs: Pr. IGHIL-HARIZ Zohra Professeur. Université ORAN 1, Ahmed Ben Bella Pr. BELKHODJA Moulay Professeur. Université ORAN 1, Ahmed Ben Bella Promoteur : Pr. BENHASSAINI Hachemi Professeur. Université Djillali Liabès S.B.A Année universitaire 2017 - 2018 Remerciements Au terme de ce travail, il m’est agréable d’exprimer mes remerciements à tous ceux qui ont contribué de près ou de loin à l’élaboration de cette thèse. Tout d’abord, je tiens à remercier le professeur Hachemi Benhassaini qui a bien voulu assurer mon encadrement, pour m’avoir encouragé et conseillé, m’avoir fait confiance tout en me laissant une grande liberté. Mes remerciements vont également à Dr Samira Mahroug, maitre de conférence à l’université Université Djillali Liabès S.B.A pour avoir accepté de présider le jury de ma soutenance. Ainsi qu’au Pr Zohra Ighil-Hariz et Pr Moulay Belkhodja professeurs à Université ORAN 1, Ahmed Ben Bella, pour avoir accepté de faire partie de mon jury, d’examiner mon travail et d’en être rapporteurs. --------------------------- Ce mémoire est le fruit d’une collaboration avec le laboratoire des sciences chimiques et géologiques de l’université de Cagliari et le laboratoire de l’institut technique et industriel M. Giua, Cagliari, Italie. Je tiens donc à remercier spécialement Dr Danilo Falconieri, Pr Silvia Porcedda et Dr Alessandra Piras qui ont eu la gentillesse de m’ouvrir les portes de leurs laboratoires et pour l’accueil conviviale et la confiance qu’ils m’ont accordée. Un très grand merci au Directeur de CNCC et aux responsables de laboratoire de germination pour m’avoir permise l’accès à leur laboratoire et pour leur aide. Je tiens à exprimer ma reconnaissance à Monsieur Guy Bouxin Docteur en Sciences botaniques, Université de Liège, qui nous a largement aidés dans le travail d’analyse statistique des données écologiques indispensable en grande partie dans ce travail. Enfin, pour leur soutien sans faille et permanent, je remercie de tout cœur les membres de ma famille, Dr. Asma El Zerey-Belaskri ainsi que mes amies Tirse Malika, Mellah Rabha, Ouici Houria, Chabane Kheira et Benhamiche Samia. Merci à tous ! Zineb B. Thèse de Doctorat Université Djillali Liabes de Sidi Bel Abbes Enveloppe écologique, caractères microphytodermiques et effets allélopathiques des composés phytochimiques des espèces du genre Ruta dans la région nord occidentale oranaise. Résumé La diversité des caractères écologiques, microphytodermiques (stomates, trichomes, cellules excrétrices) et phytochimiques ont une grande valeur dans les études systématiques et taxonomiques des plantes. Ce travail vise à recueillir le plus grand nombre de caractères qui peuvent distinguer taxonomiquement entre les espèces du genre Ruta. L’étude saisonnière a porté sur trois espèces à savoir Ruta chalepensis Ruta montana et Ruta angustifolia sous deux bioclimats de l'Algérie nord occidentale. Elle cherche d’une part à caractériser les habitats propres à chaque espèce, à identifier les caractères microphytodermiques adaptatifs face aux conditions écologiques du milieu, et d’autre part à déterminer le lieu de formation et la caractérisation phytochimique des huiles volatiles chez ces espèces ainsi que leur pouvoir dans les interactions allélopathiques. Les résultats montrent que les espèces du genre Ruta sont influencées par les facteurs écologiques du milieu et par l’ambiance de leurs cortèges floristiques correspondants, abritant ainsi des communautés végétales nettement différentes dans lesquelles se développent ces espèces. Les empreintes épidermiques foliaires chez les espèces en question ont révélé des feuilles amphystomatiques avec une dominance du type tétracytique et anomocytique. La structure, la forme, la taille et le nombre des stomates et des cellules sécrétrices variaient entre les différentes espèces et suivant les conditions écologiques saisonnières. L’étude phytochimique manifeste une diversité remarquable de la composition des huiles essentielles tant sur le plan quantitatif que qualitatif, à la fois entre les espèces et les saisons. Par conséquent, différents chemotypes ont été retenus. Les principaux composants trouvés chez R. montana sont 2-undecanone suivi de (E) caryophyllène et caryophyllène oxyde. R. angustifolia et R. chalepensis se caractérisent par une majorité de 2-undecanone, 2-nonanone et 2-methyloctyl acetate. L'analyse multivariée des onze échantillons a suggéré que les principaux facteurs susceptibles d'influencer la composition chimique des huiles essentielles des feuilles étaient non seulement la période de collecte mais aussi l'origine géographique des espèces. Des effets inhibiteurs d’intensité variable ont été observés sur la germination et la croissance des graines de Triticum aestivum L. Ces composés volatiles possèdent un rôle écologique important, via leur potentiel allélopathique. Mots clés : Ruta ; Habitat ; Stomate ; Cellules sécrétrices ; Chémotype, Allélopathie. Abstract The diversity of ecological, micro-phytodermics (stomata, trichomes, secretory cavities) and phytochemical characters have great value in plants systematic and taxonomic studies. This work aims to collect as many characters as can be distinguished taxonomically between species of the genus Ruta. The seasonal study to be carried out on three species (R. chalepensis R. montana and R. angustifolia) under different bioclimates of northwestern Algeria. On the one hand, it seeks to characterize the habitats specific to each species, to identify the adaptive microphytodermic characteristics in the ecological conditions of the environment, and on the other hand to determine the place of formation and the phytochemical characterization of the volatile oils in these species as well as their power in allelopathic interactions. The results show that the species of the genus Ruta are influenced by the ecological factors of the environment and by the atmosphere of their corresponding floristic processions, thus sheltering distinctly different plant communities in which these species develop. Foliar epidermal imprints in this species revealed an amphystomatic leaves with a dominance of tetracytic and anomocytic type. The structure, shape, size and number of stomata and secretory cells varied among different species and seasonal ecological conditions. The phytochemical study shows a significant diversity in the composition of essential oils both quantitatively and qualitatively, between species and seasons. As a result, different chemotypes have been selected. The main components found in R. montana are 2-undecanone followed by (E) caryophyllene and caryophyllene oxide. The majority of 2-undecanone, 2- nonanone and 2-methyloctyl acetate characterizes R. angustifolia and R. chalepensis. The multivariate analysis of the eleven samples suggested that the main factors that could influence the chemical composition of the leaf essential oils were not only the collection period but also the geographical origin of species. Inhibitory effects with variable intensity were observed on germination and seed growth of Triticum aestivum L. These volatile compounds have an important ecological role, via their allelopathic potential. Keywords: Ruta; Habitat; Stomata; secretory cavities; Chemotype, Allelelopathy. ملخص التنوع في المعايير البيئية والدراسات الميكرومرفولوجية )الوبرات المسامات والخﻻيا اﻻفرازية( والكمياء النباتية لديها أهمية كبيرة في الدراسات المنهجية والتصنيفية للنباتات. هذه الدراسة تهدف الى جمع أكبر عدد من البيانات التي تستطيع التمييز تصنيفيا بين انواع الفيجل. الدراسة الفصلية اهتمت بثﻻث أنواع من النباتات وهي كاﻻتي Ruta. chalepensis, Ruta. montana, Ruta. angustifolia ودلك في مختلف مناخات الشمال الغربي للجزائر. هي تهدف من ناحية الي تمييز مناطق تواجد كل صنف ومن ناحية ثانية الي إبراز انواع المسمات طبيعة الجيوب اﻻفرازية إبراز المعيار الكيميائي لكل نبتة وقدراتها اﻻليلوباثكية لزيوتها الطبيعية. النتائج تظهر ان أصناف نبتة الفيجل تتأثر بالعامل اﻻكولوجي للوسط الذي تعيش فيه وبجو مواكبها اﻷزهرية التي تنتمي اليها. كما ان نتائج الدراسات الميكرومرفولوجية تبين ان وريقات نباتات الفيجل ينتمون الى صنف amphystomatique مع تشخيص 8 انواع من المسامات التي تتميز بالنوعين tétracytique و anomocytique اللذان يتواجدان بكثرة مقارنة مع اﻷنواع اﻻخر. حجم المسمات وكثرة الخﻻيا اﻻفرازية تكون بكثرة في فصل الربيع والصيف عند R. montana التي ﻻ تتأثر بالعامل الفصلي. شكل وحجم المسامات والخﻻيا اﻻفرازية يتغير بتغير اﻷصناف والفصول. التغيرات الكمية والنوعية لمكونات الزيوت الطبيعية بين مختلف اﻷصناف والفصول عالية جدا ونتيجة لذلك لوحظ ضهور مختلف اﻷصناف الكيمياوية ( C hemotypes) اهم اﻷصناف المتحصل عليها عند R. montana هي .2-undecanone (E) caryophyllène et caryophyllène oxyde النبتتين اﻵخرتين تميزن بكثرة undecanone, 2 - nonanone 2 - methyl octyl acetate - 2 النتائج
Recommended publications
  • Chrysanthemoides Monilifera Ssp

    Chrysanthemoides Monilifera Ssp

    MANAGEMENT OF BONESEED (CHRYSANTHEMOIDES MONILIFERA SSP. MONILIFERA) (L.) T. NORL. USING FIRE, HERBICIDES AND OTHER TECHNIQUES IN AUSTRALIAN WOODLANDS Rachel L. Melland Thesis submitted for the degree of Doctor of Philosophy School of Agriculture, Food and Wine University of Adelaide August 2007 Table of Contents TABLE OF CONTENTS ....................................................................................................... II ABSTRACT ............................................................................................................................ VI DECLARATION ................................................................................................................ VIII ACKNOWLEDGEMENTS .................................................................................................. IX CHAPTER 1: INTRODUCTION ............................................................................................ 1 1.1 AIMS OF THIS THESIS .......................................................................................................... 3 CHAPTER 2: LITERATURE REVIEW ............................................................................... 5 2.1 PROCESSES OF NATIVE ECOSYSTEM DEGRADATION ............................................................ 5 2.2 GLOBAL PLANT INVASIONS – ECOSYSTEM DEGRADING PROCESSES .................................... 6 2.3 THE ENVIRONMENTAL WEED PROBLEM IN AUSTRALIA ..................................................... 10 2.4 CAUSES AND PROCESSES OF INVASIVENESS .....................................................................
  • Checklist of Botanical Collections from San Damián District (Huarochirí Province, Lima Department, Peru)

    Checklist of Botanical Collections from San Damián District (Huarochirí Province, Lima Department, Peru)

    Checklist of botanical collections from San Damián district (Huarochirí province, Lima department, Peru) A list with the names of miscellaneous botanical collections made by the authors in San Damián district (Huarochirí province, Lima department), in Central Peru, is provided. Most reported species are rosids, and will be thoroughly treated later. We report more than fifty records for the general flora of the place, including asterids, rosids, grasses and lichens. The present work is a support document for the License thesis of the first author, where further explanations and insights are to be provided. PeerJ PrePrints | https://dx.doi.org/10.7287/peerj.preprints.1523v1 | CC-BY 4.0 Open Access | rec: 24 Nov 2015, publ: 24 Nov 2015 CHECKLIST OF BOTANICAL COLLECTIONS FROM SAN DAMIÁN DISTRICT (HUAROCHIRÍ PROVINCE, LIMA DEPARTMENT, PERU) Eduardo Antonio MOLINARI NOVOA “Augusto Weberbauer” Herbarium (MOL) Universidad Nacional Agraria La Molina Apartado Postal 456 La Molina, Lima, Perú [email protected] Carlos Enrique SÁNCHEZ OCHARAN “Augusto Weberbauer” Herbarium (MOL) Universidad Nacional Agraria La Molina Apartado Postal 456 La Molina, Lima, Perú [email protected] Tatiana Giannina ANAYA ARAUJO Academic Department of Biology Universidad Nacional Agraria La Molina Apartado Postal 456 La Molina, Lima, Perú [email protected] Luis Fernando MAYTA ANCO Biological and Agrarian Sciences Faculty Universidad Nacional de San Agustín Alcides Carrión s/n Arequipa, Perú [email protected] Jessica Natalia CARPIO LAU Applied Botany Laboratory Universidad Peruana Cayetano Heredia Av. Honorio Delgado 430 San Martín de Porres, Lima, Perú [email protected] Miguel Enrique MENDOZA TINCOPA “Carlos Vidal Layseca” Faculty Universidad Peruana Cayetano Heredia Av.
  • Their Botany, Essential Oils and Uses 6.86 MB

    Their Botany, Essential Oils and Uses 6.86 MB

    MELALEUCAS THEIR BOTANY, ESSENTIAL OILS AND USES Joseph J. Brophy, Lyndley A. Craven and John C. Doran MELALEUCAS THEIR BOTANY, ESSENTIAL OILS AND USES Joseph J. Brophy School of Chemistry, University of New South Wales Lyndley A. Craven Australian National Herbarium, CSIRO Plant Industry John C. Doran Australian Tree Seed Centre, CSIRO Plant Industry 2013 The Australian Centre for International Agricultural Research (ACIAR) was established in June 1982 by an Act of the Australian Parliament. ACIAR operates as part of Australia's international development cooperation program, with a mission to achieve more productive and sustainable agricultural systems, for the benefit of developing countries and Australia. It commissions collaborative research between Australian and developing-country researchers in areas where Australia has special research competence. It also administers Australia's contribution to the International Agricultural Research Centres. Where trade names are used this constitutes neither endorsement of nor discrimination against any product by ACIAR. ACIAR MONOGRAPH SERIES This series contains the results of original research supported by ACIAR, or material deemed relevant to ACIAR’s research and development objectives. The series is distributed internationally, with an emphasis on developing countries. © Australian Centre for International Agricultural Research (ACIAR) 2013 This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from ACIAR, GPO Box 1571, Canberra ACT 2601, Australia, [email protected] Brophy J.J., Craven L.A. and Doran J.C. 2013. Melaleucas: their botany, essential oils and uses. ACIAR Monograph No. 156. Australian Centre for International Agricultural Research: Canberra.
  • لسرة الصخرٌة ل نظرٌة دراسة Umbilicus Rupestris المنتمً للعائلة Crassulaceae

    لسرة الصخرٌة ل نظرٌة دراسة Umbilicus Rupestris المنتمً للعائلة Crassulaceae

    الجمهورٌة الجزائرٌة الدٌمقراطٌة الشعبٌة République Algérienne Démocratique et Populair وزارة التعلٌم العالً و البحث العلمً Ministère de L’Enseignement Supérieur et de la Recherche Scientifique جامعة اﻹخوة متنوري قسنطٌنة 1 Université des Frères Mentouri Constantine 1 كلٌة علوم الطبٌعة و الحٌاة Faculté des Sciences de la nature et de la Vie قسم البٌولوجٌا و البٌئة النباتٌة Département de Biologie et Ecologie végétal مذكرة التخرج للحصول على شهادة الماستر مٌدان علوم الطبٌعة و الحٌاة فرع بٌولوجٌا النبات تخصص البٌولوجٌا و فٌزٌولوجٌا التكاثر عنوان المذكرة: دراسة نظرٌة للسرة الصخرٌة Umbilicus rupestris المنتمً للعائلة Crassulaceae من إعداد الطالبتٌن: ؼربً نور اﻹٌمان سحنون عبٌر لجنة المناقشة: بعزٌز نصٌرة رئٌسا أستاذ محاضر أ جامعة اﻹخوة منتوري - قسنطٌنة 1 زؼمار مرٌم مقررا أستاذ محاضر أ جامعة اﻹخوة منتوري - قسنطٌنة 1 بولعسل معاد عضوا أستاذ محاضر أ جامعة اﻹخوة منتوري - قسنطٌنة 1 السنة الجامعٌة: 2019-2020 بِ ْس ِم ِهللا ال َّر ْح َم ْن ال َّر ِحي ْم أوﻻ و قبل كل شًء نشكر هللا القدٌر الذي أنار لنا طرٌقنا و رزقنا اﻻرادة و الصبر طوال فترة دراستنا، ثم نتقدم بالشكر الجزٌل لوالدٌنا و لكل من مد لنا ٌد العون ﻻ نجاز هدا البحث. نعبر عن خالص الشكر لﻷستاذة زؼمار مرٌم ﻹشرافها على بحثنا و توجٌهاتها لنا، مع التمنً لها بالشفاء العاجل. نتوجه بخالص الشكر و العرفان لﻷستاذ باقة مبارك على المساعدات الكثٌرة، النصائح القٌمة و أرائه المفٌدة من أجل اعداد هدا البحث. و كدا اﻷستاذتٌن حمودة دنٌا و شوقً سعٌدة على التوجٌه. خالص التشكرات إلى أساندتنا الكرام أعضاء لجنة المناقشة اﻷستاذة بعزٌز نصٌرة و اﻷستاذ بولعسل معاد على قبولهم تقٌٌم عملنا المتواضع. نتقدم بالشكر لجمٌع العاملٌن فً الCRBT خاصة ابتسام، مراد، مهدي و هدى على المتابعة أثناء عملنا داخل مختبر اﻷبحاث.
  • Table 5.8 – Descriptions of Priority Flora Recorded in the Project Area Species, Family and Rank Descriptio

    Table 5.8 – Descriptions of Priority Flora Recorded in the Project Area Species, Family and Rank Descriptio

    Oakajee Port and Rail OPR Rail Proposal – Vegetation and Flora Assessment Table 5.8 – Descriptions of Priority Flora Recorded in the Project Area No of No of Plants Species, Family and Locations Description Typical Habitat Recorded by Distribution Photographs Rank Recorded by ecologia ecologia A dense, rounded shrub growing from 0.5 m to 2 m in height. Its phyllodes are erect and the yellow, globular flowers are produced from June to August. Acacia lineolata Mullewa, east of subsp. multilineata (Photograph on right by S.J. Patrick. Image used Mingenew, Arrino with the permission of the Western Australian Sandplains. 1 1 (FABACEAE) and the locality of Herbarium, Department of Environment and Yuna. Priority 1 Conservation (http://florabase.dec.wa.gov.au/help/copyright). Accessed on Thursday, 3 December 2009) and growth habit again (right) (Photography: ecologia). Chamelaucium sp. 73 km south of Yalgoo (Y. Chadwick A bushy low shrub to 1.5 m high. This species Yalgoo, near Blue 1816) produces white/pink/purple flowers during Granite outcrops. 2 3 Hills, along Morawa‐ (MYRTACEAE) August and September. Yalgoo Road, and Wurarga. Priority 1 An upright, leafless, semi‐succulent herb that grows to between 0.4 and 1 m, although it has been recorded as growing to 2 m. The stems are Robinson Ranges, Euphorbia light green, and have a bluish‐grey waxy light Sandstone and Mount Augustus sarcostemmoides covering. When broken a white sap is exuded quartzite hills but Station. Also East from the stems. The rarely present leaves are has been located 67 254 Chewing Ranges, (EUPHORBIACEAE) narrow, lanceolate, opposite and are held on flat plains at Mount Giles and Priority 1 horizontally.
  • Inventory of Taxa for the Fitzgerald River National Park

    Inventory of Taxa for the Fitzgerald River National Park

    Flora Survey of the Coastal Catchments and Ranges of the Fitzgerald River National Park 2013 Damien Rathbone Department of Environment and Conservation, South Coast Region, 120 Albany Hwy, Albany, 6330. USE OF THIS REPORT Information used in this report may be copied or reproduced for study, research or educational purposed, subject to inclusion of acknowledgement of the source. DISCLAIMER The author has made every effort to ensure the accuracy of the information used. However, the author and participating bodies take no responsibiliy for how this informrion is used subsequently by other and accepts no liability for a third parties use or reliance upon this report. CITATION Rathbone, DA. (2013) Flora Survey of the Coastal Catchments and Ranges of the Fitzgerald River National Park. Unpublished report. Department of Environment and Conservation, Western Australia. ACKNOWLEDGEMENTS The author would like to thank many people that provided valable assistance and input into the project. Sarah Barrett, Anita Barnett, Karen Rusten, Deon Utber, Sarah Comer, Charlotte Mueller, Jason Peters, Roger Cunningham, Chris Rathbone, Carol Ebbett and Janet Newell provided assisstance with fieldwork. Carol Wilkins, Rachel Meissner, Juliet Wege, Barbara Rye, Mike Hislop, Cate Tauss, Rob Davis, Greg Keighery, Nathan McQuoid and Marco Rossetto assissted with plant identification. Coralie Hortin, Karin Baker and many other members of the Albany Wildflower society helped with vouchering of plant specimens. 2 Contents Abstract ..............................................................................................................................
  • Towards an Updated Checklist of the Libyan Flora

    Towards an Updated Checklist of the Libyan Flora

    Towards an updated checklist of the Libyan flora Article Published Version Creative Commons: Attribution 3.0 (CC-BY) Open access Gawhari, A. M. H., Jury, S. L. and Culham, A. (2018) Towards an updated checklist of the Libyan flora. Phytotaxa, 338 (1). pp. 1-16. ISSN 1179-3155 doi: https://doi.org/10.11646/phytotaxa.338.1.1 Available at http://centaur.reading.ac.uk/76559/ It is advisable to refer to the publisher’s version if you intend to cite from the work. See Guidance on citing . Published version at: http://dx.doi.org/10.11646/phytotaxa.338.1.1 Identification Number/DOI: https://doi.org/10.11646/phytotaxa.338.1.1 <https://doi.org/10.11646/phytotaxa.338.1.1> Publisher: Magnolia Press All outputs in CentAUR are protected by Intellectual Property Rights law, including copyright law. Copyright and IPR is retained by the creators or other copyright holders. Terms and conditions for use of this material are defined in the End User Agreement . www.reading.ac.uk/centaur CentAUR Central Archive at the University of Reading Reading’s research outputs online Phytotaxa 338 (1): 001–016 ISSN 1179-3155 (print edition) http://www.mapress.com/j/pt/ PHYTOTAXA Copyright © 2018 Magnolia Press Article ISSN 1179-3163 (online edition) https://doi.org/10.11646/phytotaxa.338.1.1 Towards an updated checklist of the Libyan flora AHMED M. H. GAWHARI1, 2, STEPHEN L. JURY 2 & ALASTAIR CULHAM 2 1 Botany Department, Cyrenaica Herbarium, Faculty of Sciences, University of Benghazi, Benghazi, Libya E-mail: [email protected] 2 University of Reading Herbarium, The Harborne Building, School of Biological Sciences, University of Reading, Whiteknights, Read- ing, RG6 6AS, U.K.
  • Wildlife Travel Burren 2018

    Wildlife Travel Burren 2018

    The Burren 2018 species list and trip report, 7th-12th June 2018 WILDLIFE TRAVEL The Burren 2018 s 1 The Burren 2018 species list and trip report, 7th-12th June 2018 Day 1: 7th June: Arrive in Lisdoonvarna; supper at Rathbaun Hotel Arriving by a variety of routes and means, we all gathered at Caherleigh House by 6pm, sustained by a round of fresh tea, coffee and delightful home-made scones from our ever-helpful host, Dermot. After introductions and some background to the geology and floral elements in the Burren from Brian (stressing the Mediterranean component of the flora after a day’s Mediterranean heat and sun), we made our way to the Rathbaun, for some substantial and tasty local food and our first taste of Irish music from the three young ladies of Ceolan, and their energetic four-hour performance (not sure any of us had the stamina to stay to the end). Day 2: 8th June: Poulsallach At 9am we were collected by Tony, our driver from Glynn’s Coaches for the week, and following a half-hour drive we arrived at a coastal stretch of species-rich limestone pavement which represented the perfect introduction to the Burren’s flora: a stunningly beautiful mix of coastal, Mediterranean, Atlantic and Arctic-Alpine species gathered together uniquely in a natural rock garden. First impressions were of patchy grassland, sparkling with heath spotted- orchids Dactylorhiza maculata ericetorum and drifts of the ubiquitous and glowing-purple bloody crane’s-bill Geranium sanguineum, between bare rock. A closer look revealed a diverse and colourful tapestry of dozens of flowers - the yellows of goldenrod Solidago virgaurea, kidney-vetch Anthyllis vulneraria, and bird’s-foot trefoil Lotus corniculatus (and its attendant common blue butterflies Polyommatus Icarus), pink splashes of wild thyme Thymus polytrichus and the hairy local subspecies of lousewort Pedicularis sylvatica ssp.
  • The Seed Atlas of Pakistan-Xi. Urticaceae

    The Seed Atlas of Pakistan-Xi. Urticaceae

    Pak. J. Bot ., 47(3): 987-994, 2015. THE SEED ATLAS OF PAKISTAN-XI. URTICACEAE RUBINA ABID *, AFSHEEN ATHER AND M. QAISER Department of Botany, University of Karachi, Karachi-75270, Pakistan. *Corresponding author’s e-mail: [email protected] Abstract Seed morphology and its numerical analysis of the 9 taxa belonging to the family Urticaceae carried out with the help of scanning electron microscopy. Seed micro and macro morphological characters were significantly helpful to trace the phenetic relationship between the taxa of the family Urticaceae. Key words: Seed morphology, Phenetic relationship, Urticaceae, Pakistan. Introduction microscopy dry seeds were directly mounted on metallic stub using double adhesive tape and coated with gold for The family Urticaceae is commonly known as a period of 6 minutes in sputtering chamber and Nettle family, comprises 1050 species distributed in 48 observed under SEM. The terminology used is in genera mostly found in tropical regions few species are accordance to Lawrence (1970), Radford et al. (1974) also reported from temperate zones (Mabberley, 2008). and Stearn (1983) with slight modifications. Numerical In Pakistan the family Urticaceae is represented by 9 analysis was carried out to recognize the relationship species distributed in 6 genera viz., Forsskalea L., and dissimilarities of species within the family Lecanthus Wedd., Parietaria L., Pilea Lindl., Pouzolzia Urticaceae. Hierarchical clustering was performed by Gaudich and Urtica L. including 9 taxa (Ghafoor, 1981). using Euclidean distance index with the computer There are various reports available where seed package (Anon., 2012). Each taxon was treated as morphological data was significantly used to reveal the operational taxonomic unit (OTU).
  • Immune Benefits from Alternative Host Plants Could Maintain Polyphagy in a Phytophagous Insect

    Immune Benefits from Alternative Host Plants Could Maintain Polyphagy in a Phytophagous Insect

    Immune benefits from alternative host plants could maintain polyphagy in a phytophagous insect Karen Muller, Fanny Vogelweith, Denis Thiéry, Yannick Moret & Jérôme Moreau Oecologia ISSN 0029-8549 Volume 177 Number 2 Oecologia (2015) 177:467-475 DOI 10.1007/s00442-014-3097-1 1 23 Your article is protected by copyright and all rights are held exclusively by Springer- Verlag Berlin Heidelberg. This e-offprint is for personal use only and shall not be self- archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com”. 1 23 Author's personal copy Oecologia (2015) 177:467–475 DOI 10.1007/s00442-014-3097-1 PLANT-MICROBE-ANIMAL INTERACTIONS - ORIGINAL RESEARCH Immune benefits from alternative host plants could maintain polyphagy in a phytophagous insect Karen Muller · Fanny Vogelweith · Denis Thiéry · Yannick Moret · Jérôme Moreau Received: 12 September 2014 / Accepted: 16 September 2014 / Published online: 2 October 2014 © Springer-Verlag Berlin Heidelberg 2014 Abstract The tritrophic interactions hypothesis, inte- activity) of L. botrana larvae were significantly enhanced grating bottom-up (plant-herbivore) and top-down (her- when they were fed AHPs rather than grape.
  • Phylogenetic Relationships of Ruteae (Rutaceae): New Evidence from the Chloroplast Genome and Comparisons with Non-Molecular Data

    Phylogenetic Relationships of Ruteae (Rutaceae): New Evidence from the Chloroplast Genome and Comparisons with Non-Molecular Data

    ARTICLE IN PRESS Molecular Phylogenetics and Evolution xxx (2008) xxx–xxx Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Phylogenetic relationships of Ruteae (Rutaceae): New evidence from the chloroplast genome and comparisons with non-molecular data Gabriele Salvo a,*, Gianluigi Bacchetta b, Farrokh Ghahremaninejad c, Elena Conti a a Institute of Systematic Botany, University of Zürich, Zollikerstrasse 107, CH-8008 Zürich, Switzerland b Center for Conservation of Biodiversity (CCB), Department of Botany, University of Cagliari, Viale S. Ignazio da Laconi 13, 09123 Cagliari, Italy c Department of Biology, Tarbiat Moallem University, 49 Dr. Mofatteh Avenue, 15614 Tehran, Iran article info abstract Article history: Phylogenetic analyses of three cpDNA markers (matK, rpl16, and trnL–trnF) were performed to evaluate Received 12 December 2007 previous treatments of Ruteae based on morphology and phytochemistry that contradicted each other, Revised 14 July 2008 especially regarding the taxonomic status of Haplophyllum and Dictamnus. Trees derived from morpho- Accepted 9 September 2008 logical, phytochemical, and molecular datasets of Ruteae were then compared to look for possible pat- Available online xxxx terns of agreement among them. Furthermore, non-molecular characters were mapped on the molecular phylogeny to identify uniquely derived states and patterns of homoplasy in the morphological Keywords: and phytochemical datasets. The phylogenetic analyses determined that Haplophyllum and Ruta form Ruta reciprocally exclusive monophyletic groups and that Dictamnus is not closely related to the other genera Citrus family Morphology of Ruteae. The different types of datasets were partly incongruent with each other. The discordant phy- Phytochemistry logenetic patterns between the phytochemical and molecular trees might be best explained in terms of Congruence convergence in secondary chemical compounds.
  • 1 Recent Incursions of Weeds to Australia 1971

    1 Recent Incursions of Weeds to Australia 1971

    Recent Incursions of Weeds to Australia 1971 - 1995 1 CRC for Weed Management Systems Technical Series No. 3 CRC for Weed Management Systems Technical Series No. 3 Cooperative Research Centre for Weed Management Systems Recent Incursions of Weeds to Australia 1971 - 1995 Convened by R.H. Groves Appendix compiled by J.R. Hosking Established and supported under the Commonwealth Government’s Cooperative Research Centres 2 Program. Recent Incursions of Weeds to Australia 1971 - 1995 CRC for Weed Management Systems Technical Series No.3 January 1998 Groves, R.H. (Richard Harrison) Recent incursions of weeds to Australia 1971 - 1995 ISBN 0 9587010 2 4 1. Weeds - Control - Australia. I. Hosking, J.R. (John Robert). II. Cooperative Research Centre for Weed Management Systems (Australia). III. Title. (Series: CRC for Weed Management Systems Technical Series; No. 3) 632.5 Contact address: CRC for Weed Management Systems Waite Campus University of Adelaide PMB1 Glen Osmond SA 5064 Australia CRC for Weed Management Systems, Australia 1997. The information advice and/or procedures contained in this publication are provided for the sole purpose of disseminating information relating to scientific and technical matters in accordance with the functions of the CRC for Weed Management Systems. To the extent permitted by law, CRC for Weed Management Systems shall not be held liable in relation to any loss or damage incurred by the use and/or reliance upon any information advice and/or procedures contained in this publication. Mention of any product in this publication is for information purposes and does not constitute a recommendation of any such product either expressed or implied by CRC for Weed Management Systems.