Scientific Report | 2016/2017
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Olarewaju Olaoluwa Omoniyi 2
EFFECT OF CANOPY POSITION AND NON-DESTRUCTIVE DETERMINATION OF RIND BIOCHEMICAL PROPERTIES OF CITRUS FRUIT DURING POSTHARVEST NON-CHILLING COLD STORAGE OLAOLUWA OMONIYI OLAREWAJU Submitted in partial fulfilment of the academic requirements for the degree of DOCTOR OF PHILOSOPHY Discipline of Horticultural Science School of Agricultural, Earth and Environmental Sciences College of Agriculture, Engineering, and Sciences University of KwaZulu-Natal Pietermaritzburg South Africa December 2017 FOREWORD The research contained in this thesis was completed by the candidate while based in the Discipline of Horticultural Sciences, School of Agricultural, Earth and Environmental Sciences of the College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa. The research was made possible by the funding received from National Research Foundation and Citrus Research International through Postharvest Innovation Programme (PHI 2/2014). The contents of this work have not been submitted in any form to another university and, except where the work of others is acknowledged in the text, the results reported are due to investigations by the candidate. _________________________ _________________________ Signed: Dr LS Magwaza Signed: Dr OA Fawole Date: Date: _________________________ _________________________ Signed: Dr SZ Tesfay Signed: Prof UL Opara Date: Date: i DECLARATION 1- PLAGIARISM I, Olarewaju Olaoluwa Omoniyi, declare that: 1) The research reported in this dissertation, except where otherwise indicated or acknowledged, is my original work; 2) This dissertation has not been submitted in full or in part for any degree or examination to any other university; 3) This dissertation does not contain other persons’ data, pictures, graphs, or other information, unless specifically acknowledged as being sourced from other persons; 4) This dissertation does not contain other persons’ writing, unless specifically acknowledged as being sourced from other researchers. -
Increased Population Density Depresses Activity but Does Not Influence Dispersal in the Snail Pomatias 2 Elegans
bioRxiv preprint doi: https://doi.org/10.1101/2020.02.28.970160; this version posted March 3, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 Increased population density depresses activity but does not influence dispersal in the snail Pomatias 2 elegans 3 Maxime Dahirel1,2, Loïc Menut1, Armelle Ansart1 4 1Univ Rennes, CNRS, ECOBIO (Ecosystèmes, biodiversité, évolution) - UMR 6553, F-35000 Rennes, 5 France 6 2INRAE, Université Côte d'Azur, CNRS, ISA, France 7 Abstract 8 Dispersal is a key trait linking ecological and evolutionary dynamics, allowing organisms to optimize 9 fitness expectations in spatially and temporally heterogeneous environments. Some organisms can 10 both actively disperse or enter a reduced activity state in response to challenging conditions, and 11 both responses may be under a trade-off. To understand how such organisms respond to changes in 12 environmental conditions, we studied the dispersal and activity behaviour in the gonochoric land 13 snail Pomatias elegans, a litter decomposer that can reach very high local densities, across a wide 14 range of ecologically relevant densities. We found that crowding up to twice the maximal recorded 15 density had no detectable effect on dispersal tendency in this species, contrary to previous results in 16 many hermaphroditic snails. Pomatias elegans is nonetheless able to detect population density; we 17 show they reduce activity rather than increase dispersal in response to crowding. -
Chloroplasts and Plant Immunity: Where Are the Fungal Effectors?
pathogens Review Chloroplasts and Plant Immunity: Where Are the Fungal Effectors? Matthias Kretschmer 1, Djihane Damoo 1, Armin Djamei 2 and James Kronstad 1,* 1 Michael Smith Laboratories, Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; [email protected] (M.K.); [email protected] (D.D.) 2 Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) OT Gatersleben Corrensstrasse 3, D-06466 Stadt Seeland, Germany; [email protected] * Correspondence: [email protected]; Tel.: +604-822-4732 Received: 4 December 2019; Accepted: 21 December 2019; Published: 24 December 2019 Abstract: Chloroplasts play a central role in plant immunity through the synthesis of secondary metabolites and defense compounds, as well as phytohormones, such as jasmonic acid and salicylic acid. Additionally, chloroplast metabolism results in the production of reactive oxygen species and nitric oxide as defense molecules. The impact of viral and bacterial infections on plastids and chloroplasts has been well documented. In particular, bacterial pathogens are known to introduce effectors specifically into chloroplasts, and many viral proteins interact with chloroplast proteins to influence viral replication and movement, and plant defense. By contrast, clear examples are just now emerging for chloroplast-targeted effectors from fungal and oomycete pathogens. In this review, we first present a brief overview of chloroplast contributions to plant defense and then discuss examples of connections between fungal interactions with plants and chloroplast function. We then briefly consider well-characterized bacterial effectors that target chloroplasts as a prelude to discussing the evidence for fungal effectors that impact chloroplast activities. -
Machovina-Enzymatic-2018.Pdf
ENZYMATIC STRATEGIES FOR CONTROLLING AND HARNESSING THE OXIDATIVE POWER OF O2 by Melodie M. Machovina A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Biochemistry MONTANA STATE UNIVERSITY Bozeman, Montana November 2018 ©COPYRIGHT by Melodie Marie Machovina 2018 All Rights Reserved ii DEDICATION I would like to dedicate this work to my parents, Alberto and Gina, whose outstanding dedication to excellence and hard-work has encouraged me to persevere through all that life has given. This dissertation is also dedicated to my godfather, Murray Oxman, a true friend and inspiration. Your wisdom has guided me along this journey and continues to guide me! iii ACKNOWLEDGMENTS My first and foremost thanks go to my advisor, Prof. Jennifer DuBois; your passion and dedication towards excellent science is an inspiration. Thank you for your guidance along this significant chapter in my life! I would also like to acknowledge my thesis committee members, Profs. Joan Broderick, Valerie Copie, and Brian Bothner, and Dr. Gregg Beckham for all that you’ve taught me along the way. I am grateful to my collaborators for providing excellent data and being great to work with. A special thanks to Gregg Beckham for taking me under his wing at NREL and always being so excited and positive. I would also like to acknowledge John McGeehan and Sam Mallinson in the UK; it’s been a pleasure working with you on the amazing GcoA stories. Thank you for making our collaboration so enjoyable and productive! Doreen Brown, thank you for helping make grad school a smooth and enjoyable experience. -
CLECOM-Liste Österreich (Austria)
CLECOM-Liste Österreich (Austria), mit Änderungen CLECOM-Liste Österreich (Austria) Phylum Mollusca C UVIER 1795 Classis Gastropoda C UVIER 1795 Subclassis Orthogastropoda P ONDER & L INDBERG 1995 Superordo Neritaemorphi K OKEN 1896 Ordo Neritopsina C OX & K NIGHT 1960 Superfamilia Neritoidea L AMARCK 1809 Familia Neritidae L AMARCK 1809 Subfamilia Neritinae L AMARCK 1809 Genus Theodoxus M ONTFORT 1810 Subgenus Theodoxus M ONTFORT 1810 Theodoxus ( Theodoxus ) fluviatilis fluviatilis (L INNAEUS 1758) Theodoxus ( Theodoxus ) transversalis (C. P FEIFFER 1828) Theodoxus ( Theodoxus ) danubialis danubialis (C. P FEIFFER 1828) Theodoxus ( Theodoxus ) danubialis stragulatus (C. P FEIFFER 1828) Theodoxus ( Theodoxus ) prevostianus (C. P FEIFFER 1828) Superordo Caenogastropoda C OX 1960 Ordo Architaenioglossa H ALLER 1890 Superfamilia Cyclophoroidea J. E. G RAY 1847 Familia Cochlostomatidae K OBELT 1902 Genus Cochlostoma J AN 1830 Subgenus Cochlostoma J AN 1830 Cochlostoma ( Cochlostoma ) septemspirale septemspirale (R AZOUMOWSKY 1789) Cochlostoma ( Cochlostoma ) septemspirale heydenianum (C LESSIN 1879) Cochlostoma ( Cochlostoma ) henricae henricae (S TROBEL 1851) - 1 / 36 - CLECOM-Liste Österreich (Austria), mit Änderungen Cochlostoma ( Cochlostoma ) henricae huettneri (A. J. W AGNER 1897) Subgenus Turritus W ESTERLUND 1883 Cochlostoma ( Turritus ) tergestinum (W ESTERLUND 1878) Cochlostoma ( Turritus ) waldemari (A. J. W AGNER 1897) Cochlostoma ( Turritus ) nanum (W ESTERLUND 1879) Cochlostoma ( Turritus ) anomphale B OECKEL 1939 Cochlostoma ( Turritus ) gracile stussineri (A. J. W AGNER 1897) Familia Aciculidae J. E. G RAY 1850 Genus Acicula W. H ARTMANN 1821 Acicula lineata lineata (DRAPARNAUD 1801) Acicula lineolata banki B OETERS , E. G ITTENBERGER & S UBAI 1993 Genus Platyla M OQUIN -TANDON 1856 Platyla polita polita (W. H ARTMANN 1840) Platyla gracilis (C LESSIN 1877) Genus Renea G. -
Nymphaea Folia Naturae Bihariae Xli
https://biblioteca-digitala.ro MUZEUL ŢĂRII CRIŞURILOR NYMPHAEA FOLIA NATURAE BIHARIAE XLI Editura Muzeului Ţării Crişurilor Oradea 2014 https://biblioteca-digitala.ro 2 Orice corespondenţă se va adresa: Toute correspondence sera envoyée à l’adresse: Please send any mail to the Richten Sie bitte jedwelche following adress: Korrespondenz an die Addresse: MUZEUL ŢĂRII CRIŞURILOR RO-410464 Oradea, B-dul Dacia nr. 1-3 ROMÂNIA Redactor şef al publicațiilor M.T.C. Editor-in-chief of M.T.C. publications Prof. Univ. Dr. AUREL CHIRIAC Colegiu de redacţie Editorial board ADRIAN GAGIU ERIKA POSMOŞANU Dr. MÁRTON VENCZEL, redactor responsabil Comisia de referenţi Advisory board Prof. Dr. J. E. McPHERSON, Southern Illinois Univ. at Carbondale, USA Prof. Dr. VLAD CODREA, Universitatea Babeş-Bolyai, Cluj-Napoca Prof. Dr. MASSIMO OLMI, Universita degli Studi della Tuscia, Viterbo, Italy Dr. MIKLÓS SZEKERES Institute of Plant Biology, Szeged Lector Dr. IOAN SÎRBU Universitatea „Lucian Blaga”,Sibiu Prof. Dr. VASILE ŞOLDEA, Universitatea Oradea Prof. Univ. Dr. DAN COGÂLNICEANU, Universitatea Ovidius, Constanţa Lector Univ. Dr. IOAN GHIRA, Universitatea Babeş-Bolyai, Cluj-Napoca Prof. Univ. Dr. IOAN MĂHĂRA, Universitatea Oradea GABRIELA ANDREI, Muzeul Naţional de Ist. Naturală “Grigora Antipa”, Bucureşti Fondator Founded by Dr. SEVER DUMITRAŞCU, 1973 ISSN 0253-4649 https://biblioteca-digitala.ro 3 CUPRINS CONTENT Botanică Botany VASILE MAXIM DANCIU & DORINA GOLBAN: The Theodor Schreiber Herbarium in the Botanical Collection of the Ţării Crişurilor Museum in -
Gmmyb176 Interactome and Regulation of Isoflavonoid Biosynthesis in Soybean
Western University Scholarship@Western Electronic Thesis and Dissertation Repository 6-28-2017 12:00 AM GmMYB176 Interactome and Regulation of Isoflavonoid Biosynthesis in Soybean Arun Kumaran Anguraj Vadivel The University of Western Ontario Supervisor Dr. Sangeeta Dhaubhadel The University of Western Ontario Joint Supervisor Dr. Mark Bernards The University of Western Ontario Graduate Program in Biology A thesis submitted in partial fulfillment of the equirr ements for the degree in Doctor of Philosophy © Arun Kumaran Anguraj Vadivel 2017 Follow this and additional works at: https://ir.lib.uwo.ca/etd Part of the Molecular Biology Commons, and the Plant Biology Commons Recommended Citation Anguraj Vadivel, Arun Kumaran, "GmMYB176 Interactome and Regulation of Isoflavonoid Biosynthesis in Soybean" (2017). Electronic Thesis and Dissertation Repository. 4639. https://ir.lib.uwo.ca/etd/4639 This Dissertation/Thesis is brought to you for free and open access by Scholarship@Western. It has been accepted for inclusion in Electronic Thesis and Dissertation Repository by an authorized administrator of Scholarship@Western. For more information, please contact [email protected]. i Abstract MYB transcription factors are one of the largest transcription factor families characterized in plants. They are classified into four types: R1 MYB, R2R3 MYB, R3 MYB and R4 MYB. GmMYB176 is an R1MYB transcription factor that regulates Chalcone synthase (CHS8) gene expression and isoflavonoid biosynthesis in soybean. Silencing of GmMYB176 suppressed the expression of the GmCHS8 gene and reduced the accumulation of isoflavonoids in soybean hairy roots. However, overexpression of GmMYB176 does not alter either GmCHS8 gene expression or isoflavonoid levels suggesting that GmMYB176 alone is not sufficient for GmCHS8 gene regulation. -
Guidelines for the Capture and Management of Digital Zoological Names Information Francisco W
Guidelines for the Capture and Management of Digital Zoological Names Information Francisco W. Welter-Schultes Version 1.1 March 2013 Suggested citation: Welter-Schultes, F.W. (2012). Guidelines for the capture and management of digital zoological names information. Version 1.1 released on March 2013. Copenhagen: Global Biodiversity Information Facility, 126 pp, ISBN: 87-92020-44-5, accessible online at http://www.gbif.org/orc/?doc_id=2784. ISBN: 87-92020-44-5 (10 digits), 978-87-92020-44-4 (13 digits). Persistent URI: http://www.gbif.org/orc/?doc_id=2784. Language: English. Copyright © F. W. Welter-Schultes & Global Biodiversity Information Facility, 2012. Disclaimer: The information, ideas, and opinions presented in this publication are those of the author and do not represent those of GBIF. License: This document is licensed under Creative Commons Attribution 3.0. Document Control: Version Description Date of release Author(s) 0.1 First complete draft. January 2012 F. W. Welter- Schultes 0.2 Document re-structured to improve February 2012 F. W. Welter- usability. Available for public Schultes & A. review. González-Talaván 1.0 First public version of the June 2012 F. W. Welter- document. Schultes 1.1 Minor editions March 2013 F. W. Welter- Schultes Cover Credit: GBIF Secretariat, 2012. Image by Levi Szekeres (Romania), obtained by stock.xchng (http://www.sxc.hu/photo/1389360). March 2013 ii Guidelines for the management of digital zoological names information Version 1.1 Table of Contents How to use this book ......................................................................... 1 SECTION I 1. Introduction ................................................................................ 2 1.1. Identifiers and the role of Linnean names ......................................... 2 1.1.1 Identifiers .................................................................................. -
In Vitro Production and Biocontrol Potential of Nematodes Associated with Molluscs
In vitro production and biocontrol potential of nematodes associated with molluscs by Annika Pieterse Dissertation presented for the degree of Doctor of Nematology in the Faculty of AgriSciences at Stellenbosch University Co-supervisor: Professor Antoinette Paula Malan Co-supervisor: Doctor Jenna Louise Ross March 2020 Stellenbosch University https://scholar.sun.ac.za Declaration By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitly otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. This dissertation includes one original paper published in a peer-reviewed journal. The development and writing of the paper was the principal responsibility of myself and, for each of the cases where this is not the case, a declaration is included in the dissertation indicating the nature and extent of the contributions of co-authors. March 2020 Copyright © 2020 Stellenbosch University All rights reserved II Stellenbosch University https://scholar.sun.ac.za Acknowledgements First and foremost, I would like to thank my two supervisors, Prof Antoinette Malan and Dr Jenna Ross. This thesis would not have been possible without their help, patience and expertise. I am grateful for the opportunity to have been part of this novel work in South Africa. I would like to thank Prof. Des Conlong for welcoming me at SASRI in KwaZulu-Natal and organizing slug collections with local growers, as well as Sheila Storey for helping me transport the slugs from KZN. -
Underground. Variable Degrees and Variety of Reasons for Cave Penetration in Terrestrial Gastropods Naslednja Postaja: Podzemlje
COBISS: 1.01 NEXT Stop: Underground. Variable degrees AND varietY of reasons for cave penetration in terrestrial gastropods Naslednja postaja: podzemlje. Različne stopnje in različni razlogi prodiranja kopenskih polžev V jame Alexander M. Weigand1,2 Abstract UDC 594.3:551.44 Izvleček UDK 594.3:551.44 Alexander M. Weigand: Next Stop: Underground. Variable Alexander M. Weigand: Naslednja postaja: podzemlje. Razli- degrees and variety of reasons for cave penetration in terres- čne stopnje in različni razlogi prodiranja kopenskih polžev v trial gastropods jame Cave-dwelling animals can be classified based on their occur- Podzemeljske živali lahko opredelimo glede na njihovo pojav- rence in and relationship to the subterranean environment. ljanje v podzemeljskem okolju in odnos do tega okolja. Podatki Subsurface distribution data and studies addressing the initial o razširjenosti živali v podzemlju in študije, ki obravnavajo causes for animals to enter underground habitats are sparse. By vzroke za kolonizacijo podzemlja so redki. Stopnja prodiranja retrieving occurrence data from two voluntary biospeleological kopenskih polžev v jame in morebitni evolucijski vzroki so bili collections in Central Germany, the degree of cave penetration proučevani na podlagi dveh biospeleoloških zbirk v osre dnji in terrestrial gastropods was investigated, thus to infer poten- Nemčiji. Skupno je bilo določenih 66 vrst polžev, ki zaidejo tial evolutionary drivers. In total, 66 identified gastropod spe- v podzemlje, od tega 23 vrst iz temnih predelov podzemlja. cies entered the subterranean environment with 23 of the spe- Čeprav polži kažejo različne stopnje prodiranja v jame, podze- cies also recorded from the dark zone. Gastropods possessed meljska oblika polžev ni bila ugotovljena. -
The Loss of Green Color During Chlorophyll Degradation— a Prerequisite to Prevent Cell Death?
CORE Metadata, citation and similar papers at core.ac.uk Provided by Bern Open Repository and Information System (BORIS) Planta (2004) 219: 191–194 DOI 10.1007/s00425-004-1231-8 PROGRESS REPORT Stefan Ho¨rtensteiner The loss of green color during chlorophyll degradation— a prerequisite to prevent cell death? Received: 15 December 2003 / Accepted: 10 January 2004 / Published online: 8 April 2004 Ó Springer-Verlag 2004 Keywords Cell death Æ Chlorophyll degradation Æ product, red Chl catabolite (RCC). Thus, in vitro, RCC Non-fluorescent chlorophyll catabolite Æ does not accumulate in the absence of PaO. In addition, Pheophorbide a oxygenase Æ Red chlorophyll catabolite RCCR is sensitive to oxygen, although PaO requires O2 reductase Æ Senescence for incorporation into pheide a (Rodoni et al. 1997a; Wu¨thrich et al. 2000). PaO has been demonstrated to be a non-heme iron-containing monooxygenase, that spe- During plant senescence, chlorophyll (Chl) is degraded cifically introduces one oxygen atom of O at the a- to non-fluorescent Chl catabolites (NCCs; Fig. 1a). 2 methine bridge of pheide a (Ho¨rtensteiner et al. 1995, These linear tetrapyrroles accumulate in the vacuoles of 1998). In addition, PaO is specific for pheide a with senescing cells and, in many plant species, represent the pheide b inhibiting in a competitive manner (Ho¨rten- final products of Chl catabolism (Matile et al. 1988; steiner et al. 1995). PaO is located at the inner envelope Krautler 2003). Despite the billions of tons of Chl dis- ¨ membrane of senescing chloroplasts (Matile and Schel- appearing this way every year and the fascinating lenberg 1996). -
Increased Population Density Depresses Activity but Does Not Influence 2 Emigration in the Snail Pomatias Elegans
bioRxiv preprint doi: https://doi.org/10.1101/2020.02.28.970160; this version posted October 10, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 Increased population density depresses activity but does not influence 2 emigration in the snail Pomatias elegans 3 Maxime Dahirel1,2, Loïc Menut1, Armelle Ansart1 4 1Univ Rennes, CNRS, ECOBIO (Ecosystèmes, biodiversité, évolution) - UMR 6553, F-35000 Rennes, 5 France 6 2INRAE, Université Côte d'Azur, CNRS, ISA, France 7 Abstract 8 Dispersal is a key trait linking ecological and evolutionary dynamics, allowing organisms to optimize 9 fitness expectations in spatially and temporally heterogeneous environments. Some organisms can 10 either actively disperse or reduce activity in response to challenging conditions, and both responses 11 may be under a trade-off. To understand how such organisms respond to changes in environmental 12 conditions, we studied emigration (the first step of dispersal) and activity behaviour in the 13 gonochoric land snail Pomatias elegans, a litter decomposer that can reach very high local densities, 14 over most of the range of ecologically relevant densities. We found that crowding had no detectable 15 effect on emigration tendency in this species, contrary to previous results in many hermaphroditic 16 snails. Pomatias elegans is nonetheless able to detect population density; we show they reduce 17 activity rather than increase dispersal in response to crowding. We propose that limiting activity may 18 be more advantageous than moving away in species with especially poor movement abilities, even by 19 land mollusc standards, like P.