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Auxin Regulation Involved in Gynoecium Morphogenesis of Papaya Flowers
Zhou et al. Horticulture Research (2019) 6:119 Horticulture Research https://doi.org/10.1038/s41438-019-0205-8 www.nature.com/hortres ARTICLE Open Access Auxin regulation involved in gynoecium morphogenesis of papaya flowers Ping Zhou 1,2,MahparaFatima3,XinyiMa1,JuanLiu1 and Ray Ming 1,4 Abstract The morphogenesis of gynoecium is crucial for propagation and productivity of fruit crops. For trioecious papaya (Carica papaya), highly differentiated morphology of gynoecium in flowers of different sex types is controlled by gene networks and influenced by environmental factors, but the regulatory mechanism in gynoecium morphogenesis is unclear. Gynodioecious and dioecious papaya varieties were used for analysis of differentially expressed genes followed by experiments using auxin and an auxin transporter inhibitor. We first compared differential gene expression in functional and rudimentary gynoecium at early stage of their development and detected significant difference in phytohormone modulating and transduction processes, particularly auxin. Enhanced auxin signal transduction in rudimentary gynoecium was observed. To determine the role auxin plays in the papaya gynoecium, auxin transport inhibitor (N-1-Naphthylphthalamic acid, NPA) and synthetic auxin analogs with different concentrations gradient were sprayed to the trunk apex of male and female plants of dioecious papaya. Weakening of auxin transport by 10 mg/L NPA treatment resulted in female fertility restoration in male flowers, while female flowers did not show changes. NPA treatment with higher concentration (30 and 50 mg/L) caused deformed flowers in both male and female plants. We hypothesize that the occurrence of rudimentary gynoecium patterning might associate with auxin homeostasis alteration. Proper auxin concentration and auxin homeostasis might be crucial for functional gynoecium morphogenesis in papaya flowers. -
Le Monde Végétal S'ouvre Aux Biotechnologies
LLLeee mmmooonnndddeee vvvééégggééétttaaalll sss’’’ooouuuvvvrrreee aaauuuxxx bbbiiioottteeeccchhhnnnooolllooogggiiieeesss NNNeeewww tttrrreeennndddsss iiinnn ppplllaaannnttt bbbiiiooolllooogggyyy aaannnddd bbbiiiooottteeeccchhhnnnooolllooogggyyy Colloque international de l’Académie des sciences Institut de France, 23 quai de Conti – 75006 Paris 15-16 septembre 2008 Grande salle des Résumés / Abstracts Comité scientifique Jean-François Bach Michel Caboche Henri Décamps Roland Douce Michel Delseny Christian Dumas Jules Hoffmann Jean-Dominique Lebreton Nicole Le Douarin Georges Pelletier Alain Prochiantz de l’Académie des sciences Marc Van Montagu Université de Gand Organisation Service des Colloques, Académie des sciences, Fabienne Bonfils Site Internet : www.academie-sciences.fr Société française de biologie végétale LLLeee mmmooonnndddeee vvvééégggééétttaaalll sss’’’ooouuuvvvrrreee aaauuuxxx bbbiiiooottteeccchhhnnnooolllooogggiiieeesss NNNeeewww tttrrreeennndddsss iiinnn ppplllaaannnttt bbbiiiooolllooogggyyy aaannnddd bbbiiiooottteeeccchhhnnnooolllooogggyyy PPRROOGGRRAAMMMMEE ___________________________________________________________________ _________________________________________________________________________________________ Colllloque iinternatiionall de ll’’Académiie des sciiences, Pariis 15-16 septembre 2008 Le monde végétal s’ouvre aux biotechnologies / New trends in plant biology and biotechnology Lundi 15 septembre / Monday, September 15th Session 1 Les plantes dévoilent leurs secrets / Plants Release their Secrets 8h45- 9h00 -
P.-O. 2 Catalan
P.-O. VALLESPIR Primaire de la droite et 12 chiens maltraités du centre : comment voter et 10 cadavres découverts PAGE 3 PAGE 2 CATALAN Jeudi 17 novembre 2016 • N°321 • Espagne 1,50€ • France 1,10€ lindependant.fr FIONA CANDIDAT À LA PRÉSIDENTIELLE Le témoignage tourne court Macron dans le grand bain PAGE ACTU ET ÉDITO Train jaune à la casse Le témoin-surprise appelé hier devant les assises du Puy-de- Dôme, où sont jugés la mère de la petite Fiona et son ancien compagnon, s’est révélé être une médium qui a dû être évacuée après avoir fait un malaise. PAGE SOCIÉTÉ EUROPE Trump divise les « 28 » Les dirigeants européens ne sont pas unanimes sur la conduite à tenir face au nouveau président des Etats-Unis dont l’isolationnisme inquiète l’Union. PAGE INTERNATIONAL CATALOGNE Dali avait-il une fille cachée ? Pilar Abel, âgée de 60 ans, affirme être la fille cachée du peintre surréaliste. Elle a saisi la justice espagnole pour obtenir la reconnaissance de sa paternité. PAGE EURORÉGION ◗ Les défenseurs du Canari jaune sont vent debout après avoir découvert que deux anciens wagons étraves, du matériel roulant déclassé, avaient été vendus à un ferrailleur. Ils souhaitent la création d’un musée du Train jaune pour préserver ce patrimoine. PAGE 6 Photo Fred Berlic DANS LES VILLAGES Argelès-sur-Mer Des experts au chevet du lycée Bourquin PAGE 14 ä Prades £]£ä Un médecin urgentiste £££Ç se penche sur le malaise hospitalier äÓ{{ PAGE 19 9 & ,&F 8 372 2, B O U L E V A R D D E S P Y R É N É E S, C S 4 0 0 6 6, 6 6 0 0 7 P E R P I G N A N C E D E X - T É L. -
Mise En Page 1
Le public scientifique Trajectoires de la génétique 150 ans après Mendel 11, 12 et 13 septembre 2016 Grande salle des séances de l’Institut de France Les travaux pionniers de Gregor Mendel, publiés il y a 150 ans, ouvraient une voie intellectuelle originale dans l’étude des processus de l’hérédité qui, quelques dizaines d’années plus tard, devait donner naissance à une nouvelle discipline scientifique, la génétique, dont les découvertes fondamentales n’allaient cesser de bou- leverser notre compréhension du monde vivant et de nous-même jusqu’à aujourd’hui. Si l’élucidation de la structure de l’ADN, au milieu du siècle dernier, ouvrait la voie de la connaissance moléculaire des gènes et offrait les outils de leur étude, bien d’autres travaux devaient révéler ensuite la complexité intrinsèque de la nature, de l’origine et du fonctionnement des génomes. Ceux-ci nous apportent un éclairage nouveau sur l’évolution des organismes vivants et leurs fonctionne- ments normaux ou pathologiques. Ce colloque, en choisissant quelques thèmes parmi le foisonnement des recherches actuelles illustrées par leurs acteurs, tentera d’anticiper les « trajectoires de la génétique » dans les années futures, avec les questionnements qu’elles suscitent et les espoirs qu’elles portent. Les organisateurs du colloque Bernard Dujon Membre de l’Académie des sciences, Université Pierre et Marie Curie, Institut Pasteur, Paris Bernard Dujon est membre de l’Académie des sciences, professeur émérite à l’université Pierre et Marie Curie et à l’Institut Pasteur. Ses principaux travaux de recherche portent sur les génomes et les mécanismes moléculaires de leur dyna- mique et de leur évolution. -
Molecular Communication for Coordinated Seed and Fruit Development: What Can We Learn from Auxin and Sugars?
International Journal of Molecular Sciences Review Molecular Communication for Coordinated Seed and Fruit Development: What Can We Learn from Auxin and Sugars? Hélène S. Robert Mendel Centre for Genomics and Proteomics of Plants Systems, CEITEC MU-Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic; [email protected]; Tel.: +420-549-49-8421 Received: 30 January 2019; Accepted: 19 February 2019; Published: 21 February 2019 Abstract: Seed development in flowering plants is a critical part of plant life for successful reproduction. The formation of viable seeds requires the synchronous growth and development of the fruit and the three seed structures: the embryo, the endosperm, the seed coat. Molecular communication between these tissues is crucial to coordinate these developmental processes. The phytohormone auxin is a significant player in embryo, seed and fruit development. Its regulated local biosynthesis and its cell-to-cell transport capacity make of auxin the perfect candidate as a signaling molecule to coordinate the growth and development of the embryo, endosperm, seed and fruit. Moreover, newly formed seeds need nutrients and form new carbon sink, generating high sugar flow from vegetative tissues to the seeds. This review will discuss how auxin and sugars may be considered as signaling molecules to coordinate seed and fruit development. Keywords: auxin; sucrose; embryo; embryo; endosperm; seed; fruit; molecular communication 1. Auxin in Seed Development Plant hormones are instrumental players for many aspects of plant development. In flowering plants, every step leading to seed formation requires crosstalk between various hormones: flower primordium development, floral organ development, including stamens, gynoecium patterning, ovule formation, ovule number, fertilization, seed formation, fruit initiation [1–8]. -
Guiderdoni 2002 Promotetr Ltp1
Inducibility by pathogen attack and developmental regulation of the rice Ltp1 gene Emmanuel Guiderdoni, Maria José Cordero, Florence Vignols, José Manuel Garcia-Garrido, Magali Lescot, Didier Tharreau, Donaldo Meynard, Nicole Ferrière, Jean-Loup Notteghem, Michel Delseny To cite this version: Emmanuel Guiderdoni, Maria José Cordero, Florence Vignols, José Manuel Garcia-Garrido, Ma- gali Lescot, et al.. Inducibility by pathogen attack and developmental regulation of the rice Ltp1 gene. Plant Molecular Biology, Springer Verlag (Germany), 2002, 49 (6), pp.679-695. 10.1023/a:1015595100145. hal-02978251 HAL Id: hal-02978251 https://hal.archives-ouvertes.fr/hal-02978251 Submitted on 22 Jan 2021 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. Plant Molecular Biology 49: 683–699, 2002. 683 © 2002 Kluwer Academic Publishers. Printed in the Netherlands. Inducibility by pathogen attack and developmental regulation of the rice Ltp1 gene Emmanuel Guiderdoni1,∗,MariaJose´ Cordero1,2, Florence Vignols2,Jose´ Manuel Garcia- Garrido2,3, Magali Lescot1, Didier Tharreau1, -
Field Identification of the 50 Most Common Plant Families in Temperate Regions
Field identification of the 50 most common plant families in temperate regions (including agricultural, horticultural, and wild species) by Lena Struwe [email protected] © 2016, All rights reserved. Note: Listed characteristics are the most common characteristics; there might be exceptions in rare or tropical species. This compendium is available for free download without cost for non- commercial uses at http://www.rci.rutgers.edu/~struwe/. The author welcomes updates and corrections. 1 Overall phylogeny – living land plants Bryophytes Mosses, liverworts, hornworts Lycophytes Clubmosses, etc. Ferns and Fern Allies Ferns, horsetails, moonworts, etc. Gymnosperms Conifers, pines, cycads and cedars, etc. Magnoliids Monocots Fabids Ranunculales Rosids Malvids Caryophyllales Ericales Lamiids The treatment for flowering plants follows the APG IV (2016) Campanulids classification. Not all branches are shown. © Lena Struwe 2016, All rights reserved. 2 Included families (alphabetical list): Amaranthaceae Geraniaceae Amaryllidaceae Iridaceae Anacardiaceae Juglandaceae Apiaceae Juncaceae Apocynaceae Lamiaceae Araceae Lauraceae Araliaceae Liliaceae Asphodelaceae Magnoliaceae Asteraceae Malvaceae Betulaceae Moraceae Boraginaceae Myrtaceae Brassicaceae Oleaceae Bromeliaceae Orchidaceae Cactaceae Orobanchaceae Campanulaceae Pinaceae Caprifoliaceae Plantaginaceae Caryophyllaceae Poaceae Convolvulaceae Polygonaceae Cucurbitaceae Ranunculaceae Cupressaceae Rosaceae Cyperaceae Rubiaceae Equisetaceae Rutaceae Ericaceae Salicaceae Euphorbiaceae Scrophulariaceae -
Angiosperms Flowering Plants
1/29/20 Angiosperms Magnoliophyta - Flowering Plants flowering plants Introduction to Angiosperms •"angio-" = vessel; so "angiosperm" means "vessel for the seed” [seed encased in ovary and later fruit] • Dominant group of land plants and arose about 140 million years ago – Jurassic/Cretaceous • 275,000+ species – diverse! Floral structure will be examined in lab next Mon/Tues – save space in your notes! • Co-evolved with animals and violet flower & fruit fungi 1 2 Magnoliophyta - Flowering Plants Magnoliophyta - Flowering Plants 4 Features Define Angiosperms 2. Further reduction of the gametophyte stages - embryo 1. Possession of flowers – with sac and pollen grain stamens and ovaries – ovary(ies) becomes a fruit violet flower & fruit 3 4 1 1/29/20 Magnoliophyta - Flowering Plants Magnoliophyta - Flowering Plants 2. Further reduction of the 3. Double fertilization: the 4. Vessel elements in xylem - gametophyte stages - embryo sperm cell has two nuclei – efficient water conducting cells sac and pollen grain zygote and endosperm; corn seed endosperm Cross section of young bean seed American basswood pink lady-slipper seeds with cotyldeons- NO endosperm endosperm 5 6 Magnoliophyta - Flowering Plants The Flower Classification of Angiosperms • The outstanding and most significant feature of the flowering plants is the flower Relationships of flowering plants • Understanding floral structure and names of are now well known based on the parts is important in recognizing, keying, DNA sequence evidence - APG and classifying species, genera, families. (Angiosperm Phylogeny Group) classification system is standard. Changes in families (names and genera) have been common in recent years! Field Manual of Michigan Flora Flower: highy specialized shoot = stem + has most up-to-date (generally) leaves from Schleiden 1855 7 8 2 1/29/20 The Flower The Flower 1. -
Flora-Lab-Manual.Pdf
LabLab MManualanual ttoo tthehe Jane Mygatt Juliana Medeiros Flora of New Mexico Lab Manual to the Flora of New Mexico Jane Mygatt Juliana Medeiros University of New Mexico Herbarium Museum of Southwestern Biology MSC03 2020 1 University of New Mexico Albuquerque, NM, USA 87131-0001 October 2009 Contents page Introduction VI Acknowledgments VI Seed Plant Phylogeny 1 Timeline for the Evolution of Seed Plants 2 Non-fl owering Seed Plants 3 Order Gnetales Ephedraceae 4 Order (ungrouped) The Conifers Cupressaceae 5 Pinaceae 8 Field Trips 13 Sandia Crest 14 Las Huertas Canyon 20 Sevilleta 24 West Mesa 30 Rio Grande Bosque 34 Flowering Seed Plants- The Monocots 40 Order Alistmatales Lemnaceae 41 Order Asparagales Iridaceae 42 Orchidaceae 43 Order Commelinales Commelinaceae 45 Order Liliales Liliaceae 46 Order Poales Cyperaceae 47 Juncaceae 49 Poaceae 50 Typhaceae 53 Flowering Seed Plants- The Eudicots 54 Order (ungrouped) Nymphaeaceae 55 Order Proteales Platanaceae 56 Order Ranunculales Berberidaceae 57 Papaveraceae 58 Ranunculaceae 59 III page Core Eudicots 61 Saxifragales Crassulaceae 62 Saxifragaceae 63 Rosids Order Zygophyllales Zygophyllaceae 64 Rosid I Order Cucurbitales Cucurbitaceae 65 Order Fabales Fabaceae 66 Order Fagales Betulaceae 69 Fagaceae 70 Juglandaceae 71 Order Malpighiales Euphorbiaceae 72 Linaceae 73 Salicaceae 74 Violaceae 75 Order Rosales Elaeagnaceae 76 Rosaceae 77 Ulmaceae 81 Rosid II Order Brassicales Brassicaceae 82 Capparaceae 84 Order Geraniales Geraniaceae 85 Order Malvales Malvaceae 86 Order Myrtales Onagraceae -
Sustainable World
Le monde végétal s’ouvre aux Colloque de l’Académie biotechnologies New trends in plant biology and des sciences biotechnology Impact environnemental des OGM résistants aux herbicides ou aux insectes Environmental Impact of GMOs Resistant to Herbicides or to Insects Klaus Ammann, Delft University of Technology, September 16, 2008 Comité scientifique Jean-François Bach Michel Caboche Henri Décamps Roland Douce Michel Delseny Christian Dumas Jules Hoffmann Jean-Dominique Lebreton Nicole Le Douarin Georges Pelletier Alain Prochiantz de l’Académie des sciences Marc Van Montagu Université de Gand Organisation Service des Colloques, Académie des sciences, Fabienne Bonfils Site Internet : www.academie-sciences.fr Environmental Impact of GMOs Resistant to Herbicides or to Insec Sustainable World Agriculture Socio-Economics Technologies Foster renewable natural Equity: reconcile traditional Innovation supported resources, knowledge knowledge with science, by artificial intelligence, based agriculture: Organic foster biomimetics, reduce influence evolution, Precision Biotech Ag, agricultural subsidies, new technologies to Balance local production global dialogue including process and use of with global trade new creative capitalism housing, food, energy Sustainable World, an new conce Relative likelihood of unintended genetic effects Relative likelihood of unintended genetic effects associated with various methods of plant genetic modification. The gray tails indicate the committee’s conclusions about the relative degree of the range of potential -
Rice Functional Genomics Rice Functional Genomics Challenges, Progress and Prospects
Rice Functional Genomics Rice Functional Genomics Challenges, Progress and Prospects Edited by NARAYANA M. UPADHYAYA Commonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry Canberra, ACT 2601, Australia Narayana M. Upadhyaya Commonwealth Scientific and Industrial Research Organization (CSIRO) Plant Industry Canberra, ACT 2601, Australia Library of Congress Control Number: 2006939781 ISBN-10: 0-387-48903-7 e-ISBN-10: 0-387-48914-2 ISBN-13: 978-0-387-48903-2 e-ISBN-13: 978-0-387-48914-8 Printed on acid-free paper. © 2007 Springer Science+Business Media, LLC All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. 987654321 springer.com Foreword In 1991 Gurdev Khush and I edited the first book containing summaries of research results in Rice Biotechnology. In comparing that book with this one, what a difference 15 years can make! How excited we were back then with publication of the first molecular genetic map of rice using DNA markers (120 RFLPs) and with genetic transformation of the recalcitrant cereals, which had finally been achieved using DNA uptake by and plant regeneration from rice protoplasts— though efficiencies were very low and some of the regenerated plants looked rather peculiar. -
Lm990224.Pdf
LeMonde Job: WMQ2402--0001-0 WAS LMQ2402-1 Op.: XX Rev.: 23-02-99 T.: 11:23 S.: 111,06-Cmp.:23,12, Base : LMQPAG 16Fap:100 No:0363 Lcp: 700 CMYK LE MONDE INTERACTIF a MP3 : révolution musicale sur le Web a Emploi : 6 pages d’annonces classées 55e ANNÉE – No 16821 – 7,50 F - 1,14 EURO FRANCE MÉTROPOLITAINE MERCREDI 24 FÉVRIER 1999 FONDATEUR : HUBERT BEUVE-MÉRY – DIRECTEUR : JEAN-MARIE COLOMBANI Retraites : les solutions des partis politiques Kosovo : l’imbroglio b Interrogés par « Le Monde », les dirigeants du PC, du PS, du RPR, de DL et de l’UDF disent vouloir sauver le système par répartition b Tous doutent de la possibilité de maintenir l’âge légal de la retraite a L’intervention à soixante ans b Ils s’opposent, unanimement, à un « grand soir » sur les régimes des agents de l’Etat du chef militaire a La galaxie LA MISSION de concertation les remèdes, et parfois même sur le sur les retraites, qui a commencé constat. M. Hue met ainsi en garde de l’OTAN auprès Murdoch ses travaux le 8 octobre 1998 sous le gouvernement contre l’utilisa- l’égide du Commissaire au Plan, tion de « scénarios-catastrophe » des Kosovars De Los Angeles à Hongkong ou Syd- touche à sa fin. Après une dernière reposant sur des projections ney, Rupert Murdoch (ci-dessus entou- réunion de travail, jeudi 25 février, économiques et démographiques a La partie serbe ré de ses deux fils) poursuit sa quête in- Jean-Michel Charpin doit présen- « aléatoires », puisqu’elles portent satiable de l’audience.