Xylella Fastidiosa

Total Page:16

File Type:pdf, Size:1020Kb

Xylella Fastidiosa Xylella fastidiosa & the Olive Quick Decline Syndrome (OQDS) A serious worldwide challenge for the safeguard of olive trees Les opinions, les données et les faits exposés dans ce numéro sont sous la responsabilité des auteurs et n'engagent ni le CIHEAM et la FAO, ni les Pays membres. Opinions, data and information presented in this edition are the sole responsibility of the author(s) and neither CIHEAM and FAO nor the Member Countries accept any liability therefor. CIHEAM Xylella fastidiosa & the Olive Quick Decline Syndrome (OQDS) A serious worldwide challenge for the safeguard of olive trees Scientific Editors: A. M. D’Onghia, S. Brunel, F. Valentini Compilation: A. M. D’Onghia and M. Digiaro Language revision: E. Lapedota OPTIONS méditerranéennes Head of Publication: Cosimo Lacirignola 2017 Series A: Mediterranean Seminars Number 121 Centre International de Hautes Etudes Agronomiques Méditerranéennes International Centre for Advanced Mediterranean Agronomic Studies L'édition technique, la maquette et la mise en page de ce numéro d'Options Méditerranéennes ont été réalisées par l'Atelier d'Édition de l'IAM de Bari (CIHEAM) Technical editing, layout and formatting of this edition of Options Méditerranéennes was performed by the Editorial Board of MAI Bari (CIHEAM) The Olive Quick Decline Syndrome (OQDS), photo courtesy of Dr. Franco Valentini, CIHEAM - MAIB The Meadow Froghopper philaenus spumarius, photo courtesy of Dr. Vincenzo Cavalieri, IPSP-CNR, Italy Tirage / Copy number : 100 Ideaprint - Bari, Italy e-mail: [email protected] Comment citer cette publication / How to quote this document : A. M. D’Onghia, S. Brunel, F. Valentini. Xylella fastidiosa & the Olive Quick Decline Syndrome (OQDS) A serious worldwide challenge for the safeguard of olive trees - IAM Bari: CIHEAM (Centre International de Hautes Etudes Agronomiques Méditerranéennes), 2017 – 172 p. (Série A Mediterranean Seminars, N° 121, Options Méditerranéennes) Catalogue des numéros d'Options Méditerranéennes sur / Catalogue of Options Méditerranéennes issues on : www.ciheam.org/publications ISSN : 1016-121X ISBN : 978-2-85352-570-1 © CIHEAM, 2017 Reproduction partielle ou totale interdite sans l'autorisation du CIHEAM Reproduction in whole or in parts is not permitted without the consent of the CIHEAM Contents Foreword ...................................................................................................................................................... 5 Introduction CIHEAM actions to combat X. fastidiosa in the Mediterranean region – Lacirignola C. Raeli M. ..................................................................................................................................... 9 FAO preventive actions to the introduction and spread of the OQDS – Xylella fastidiosa in NENA Region – Al-Dobai S., Nasr N. ...................................................................... 11 The International Plant Protection Convention (IPPC) and its standards on pest surveillance and diagnostics to prevent the entry of Xylella fastidiosa – Gonçalves Moreira A., Xia J., Brunel S. .......................................................................................................... 13 Overview of the activities and projects on Xylella fastidiosa of the International Olive Council (IOC) – Ghedira A., Serafini F. ........................................................................................... 15 From science to policy, the contributions of EPPO and Euphresco to the Xylella fastidiosa emergency – Petter F., Giovani B., Roy A.S. ................................................................ 19 Part One General overview, surveillance & diagnostic methods The world threat of Xylella fastidiosa – López M. M., Marco-Noales E., Peñalver J., Morente C., Monterde A. .............................................................................................................................. 23 The olive quick decline syndrome – Martelli G. P., Nigro F. ................................................................. 25 Xylella fastidiosa and its role in the Olive Quick Decline Syndrome – Saponari M., Boscia D., Martelli G. P.. ............................................................................................................................... 29 Main insect vectors of Xylella fastidiosa in Italy and worldwide – Cavalieri V., Porcelli F. ................................................................................................................................... 31 Xylella fastidiosa: the status of the infection and control measures in France – Legendre B., Denancé N., Olivier V., Molusson D., Juteau V., Agud-Miguel D., Sainte-Luce A., Dousset C., Audusseau C., Paillard S., François C., Rivoal C., Germain J.F., Reynaud P., de Jerphanion P., Joudar S., Francart J., Poirier A., Lecat M., Poliakoff F., Jacques M.A. ............................................................................................................... 33 State of the art of the research on X. fastidiosa in Puglia – Saponari M., .......................................... 37 Current EU research initiatives on Xylella fastidiosa – Boscia D., Saponari M. .................................. 41 CIHEAM/IAMB innovative tools for early surveillance and detection of Xylella fastidiosa – D’Onghia A. M. .......................................................................................................... 43 Options Méditerranéennes, A No.121, 2017 - Xylella fastidiosa & the Olive Quick Decline Syndrome (OQDS) A serious worldwide challenge for the safeguard of olive trees IT platform based on smart device and web-application for the survey of Xylella fastidiosa – Santoro F., Gualano S., Favia G., D’Onghia A. M. ....................................................... 47 Sampling procedures of plant material for the survey of Xylella fastidiosa in Puglia Region, Italy – Valentini F., Cavallo G., D’Onghia A. M. ............................................................. 49 The “Spy Insect” approach for monitoring Xylella fastidiosa in absence of symptomatic plants – Yaseen T., Valentini F., Santoro F., Lorusso D., D’Onghia A. M. ........................... 53 Use of conventional DNA- and protein-based techniques for the detection and characterization of Xylella fastidiosa in Italy – Elbeaino T., Digiaro M., .............................................. 55 PCR assays for the detection of Xylella fastidiosa Review and comparison of published protocols – Reisenzein H. ....................................................... 57 Direct Tissue ImmunoBlot assay (DTBIA), an efficient tool for the mass detection of Xylella fastidiosa in infected olive trees – Djelouah K., Frasheri D. ....................................................... 61 Specific, Sensitive, and Rapid Diagnosis of Xylella fastidiosa from olive plant material by a new Loop-Mediated Isothermal Amplification (LAMP) system – Yaseen T., Si Ammor M., Casini G., Drago S., Stampone G., Elbeaino T., Digiaro M. ....................................... 65 Organization of ring tests on diagnostic methods among Italian laboratories – Loreti S., Pucci N., Loconsole G., Modesti V., Potere O., Lucchesi S., Gaffuri F., Saponari M. ........................... 69 Part Two Control strategies, legislative aspects, capacity development and communication Transcriptome profiling of two olive cultivars infected by Xylella fastidiosa – Giampetruzzi A., Morelli M., Saponari M., Loconsole G., Chiumenti M., Boscia D., Savino V.N., Martelli G.P., Saldarelli P. ............................................................................................................ 73 Preliminary results on field trials to control Xylella fastidiosa on olive trees in Puglia – Scortichini M. ............................................................................................................................................... 77 Preliminary results of comparative efficacy evalutation trials against Philaenus spumarius L., vector of Xylella fastidiosa – Dongiovanni C., Cavalieri V., Altamura G., Di Carolo M., Fumarola G., Saponari M., Porcelli F. ............................................... 79 Sustainable strategies to contain the Olive Quick Decline Syndrome in southeast Italy – Carlucci A., Ingrosso F., Lops F. ...................................................................................................................... 81 Good agricultural practices in the management of the Olive Quick Decline Syndrome – Xiloyannis C., Mininni A.N., Lardo E., Miccoli A., Fausto C. ........................................................................ 83 Risk assessment of Xylella fastidiosa in the EU territory and other EFSA activities – Winter S., Bragard C., Tramontini S., Andueza M., Stancanelli G. .................................................................. 87 A Pest Risk Analysis on Xylella fastidiosa for the countries of the Near East Plant Protection Organization, focusing on the olive-infecting strain – Chouibani M., Fawzy A., AL Awad E., Eid P., Akarid N., Shubib S., Barham H., Smith J. ........................................................ 91 2 Options Méditerranéennes A No.121 Pest risk analysis on Xylella fastidiosa in Palestine – Shubib S., Hamdan I. ....................................... 93 Work done and actions taken on Xylella fastidiosa in Lebanon – Choueiri E. ................................ 97 Regulations enforced against Xylella fastidiosa in Jordan – Meihiar M., Setan S. ............................ 101 Regulatory
Recommended publications
  • Botryosphaeriaceae: a Complex, Diverse and Cosmopolitan Family of Fungi
    Revista Mexicana Ciencias Agrícolas volume 12 number 4 May 16 - June 29, 2021 Article Botryosphaeriaceae: a complex, diverse and cosmopolitan family of fungi Alejandra Mondragón-Flores1, 2 Gerardo Rodríguez-Alvarado2 Nuria Gómez-Dorantes2 Jesús Jaime Guerra-Santos3 Sylvia Patricia Fernández-Pavía2§ 1Valle de Apatzingán Experimental Field-INIFAP. Highway Apatzingán-Four roads km 17.5, Antúnez, Michoacán. CP. 60780. Tel. 800 0882222, ext. 84610. ([email protected]). 2Institute of Agricultural and Forestry Research-UMSNH. Highway Morelia-Zinapécuaro km 9.5, Tarímbaro, Michoacán. CP. 58880. Tel. 443 3223500, ext. 5226. ([email protected]; [email protected]; [email protected]). 3Autonomous University of Carmen-Faculty of Natural Sciences-Environmental Sciences Research Center. Laguna de Terms Street s/n, col. 2nd section renewal, Carmen City, Campeche, Mexico. CP. 24155. Tel. 938 1343965. ([email protected]). §Corresponding author: [email protected]. Abstract In the last decade, interest in studying the fungi belonging to the Botryosphaeriaceae family has increased due to the diseases that induce in economically important crops, their wide cosmopolitan distribution and the observed association between pathogenesis and host stress. More than ten species associated with symptoms in different parts of the same plant have been reported, indicating that a significant number of species of this family do not have specificity in host range. Besides, several studies have shown the ability of these fungi to ‘jump’ from their original native hosts to agricultural crops that are established in nearby areas, belonging to the same botanical family or to a different family. The objective of this research is to review morphological and molecular markers for taxonomic identification of species in the Botryosphaeriaceae family, their geographical distribution, range of agricultural host and developmental aspects for the disease including dispersal modes.
    [Show full text]
  • Additional Notes on the Some Aphrophorid Spittlebugs of Eastern Anatolia (Hemiptera: Cercopoidea: Aphrophoridae)*
    I. Ozgen 1 et al. ISSN 2587-1943 ADDITIONAL NOTES ON THE SOME APHROPHORID SPITTLEBUGS OF EASTERN ANATOLIA (HEMIPTERA: CERCOPOIDEA: APHROPHORIDAE)* İnanç Özgen 1, Aykut Topdemir 2, Fariba Mozaffarian 3 scientific note The study was carried out to determine Aphrophoridae species in Eastern Anatolia in 2018. Five species were collected by sweeping net on herbs. The collected specimens were identified as: Aphrophora salicina (Goeze, 1778), Lepyronia coleoptrata (Linnaeus, 1758), Paraphilaenus notatus (Mulsant & Rey, 1855), Philaenus spumarius (Linnaeus, 1758) and Neophilaenus campestris (Fallén, 1805). The species P. spumarius and L. coleoptrata were the most abundant species and the others were rather rare. The species of family Aphrophoridae are xylem feeders so they are considered as candidates for transmitting bacteria Xylella fastidiosa. Therefore, the role of the identified species in the agricultural ecosystems in the collecting sites needs to be studied. Key words: Hemiptera, Aphrophoridae, Fauna, Eastern Anatolia 1 Introduction The Aphrophoridae or spittlebugs are a family of Note: N. campestris prefer mostly grasslands, insects belonging to the order Hemiptera. Nymphs of Neophilaenus campestris Fallén showed harbour the Aphrophoridae secrete a frothy saliva-like mass, which bacterium in their body (Elbeaino et al.,2014; Moussa et al., gives the name “spittlebugs” for insects in the superfamily. 2017). The species of family Aphrophoridae are xylem feeders so Paraphilaenus notatus (Mulsant & Rey, 1855), they are considered as candidates for transmitting bacteria Xylella fastidiosa. In this study were carried out to Material examined: Elazığ, Aşağı çakmak village, determine of Aphrophorid fauna in Eastern Anatolia of 18.V.2018, 6 exs. Turkey. Note: It was determined to potential vector of Xylella 2 Material and Method fastidiosa.
    [Show full text]
  • Biodiversity Climate Change Impacts Report Card Technical Paper 12. the Impact of Climate Change on Biological Phenology In
    Sparks Pheno logy Biodiversity Report Card paper 12 2015 Biodiversity Climate Change impacts report card technical paper 12. The impact of climate change on biological phenology in the UK Tim Sparks1 & Humphrey Crick2 1 Faculty of Engineering and Computing, Coventry University, Priory Street, Coventry, CV1 5FB 2 Natural England, Eastbrook, Shaftesbury Road, Cambridge, CB2 8DR Email: [email protected]; [email protected] 1 Sparks Pheno logy Biodiversity Report Card paper 12 2015 Executive summary Phenology can be described as the study of the timing of recurring natural events. The UK has a long history of phenological recording, particularly of first and last dates, but systematic national recording schemes are able to provide information on the distributions of events. The majority of data concern spring phenology, autumn phenology is relatively under-recorded. The UK is not usually water-limited in spring and therefore the major driver of the timing of life cycles (phenology) in the UK is temperature [H]. Phenological responses to temperature vary between species [H] but climate change remains the major driver of changed phenology [M]. For some species, other factors may also be important, such as soil biota, nutrients and daylength [M]. Wherever data is collected the majority of evidence suggests that spring events have advanced [H]. Thus, data show advances in the timing of bird spring migration [H], short distance migrants responding more than long-distance migrants [H], of egg laying in birds [H], in the flowering and leafing of plants[H] (although annual species may be more responsive than perennial species [L]), in the emergence dates of various invertebrates (butterflies [H], moths [M], aphids [H], dragonflies [M], hoverflies [L], carabid beetles [M]), in the migration [M] and breeding [M] of amphibians, in the fruiting of spring fungi [M], in freshwater fish migration [L] and spawning [L], in freshwater plankton [M], in the breeding activity among ruminant mammals [L] and the questing behaviour of ticks [L].
    [Show full text]
  • The Ecological Role of Bacterial Seed Endophytes Associated with Wild Cabbage in the United Kingdom
    Received: 16 July 2019 | Revised: 25 September 2019 | Accepted: 27 September 2019 DOI: 10.1002/mbo3.954 ORIGINAL ARTICLE The ecological role of bacterial seed endophytes associated with wild cabbage in the United Kingdom Olaf Tyc1,2 | Rocky Putra1,3,4 | Rieta Gols3 | Jeffrey A. Harvey5,6 | Paolina Garbeva1 1Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO- Abstract KNAW), Wageningen, The Netherlands Endophytic bacteria are known for their ability in promoting plant growth and de- 2 Department of Internal Medicine I, Goethe fense against biotic and abiotic stress. However, very little is known about the micro- University, University Hospital Frankfurt, Frankfurt, Germany bial endophytes living in the spermosphere. Here, we isolated bacteria from the seeds 3Laboratory of Entomology, Wageningen of five different populations of wild cabbage (Brassica oleracea L) that grow within University, Wageningen, The Netherlands 15 km of each other along the Dorset coast in the UK. The seeds of each plant popu- 4Hawkesbury Institute for the Environment, Western Sydney University, Penrith, lation contained a unique microbiome. Sequencing of the 16S rRNA genes revealed Australia that these bacteria belong to three different phyla (Actinobacteria, Firmicutes, and 5Department of Terrestrial Ecology, Proteobacteria). Isolated endophytic bacteria were grown in monocultures or mix- Netherlands Institute of Ecology, Wageningen, The Netherlands tures and the effects of bacterial volatile organic compounds (VOCs) on the growth 6 Department of Ecological Sciences, Section and development on B. oleracea and on resistance against a insect herbivore was Animal Ecology, VU University Amsterdam, Amsterdam, The Netherlands evaluated. Our results reveal that the VOCs emitted by the endophytic bacteria had a profound effect on plant development but only a minor effect on resistance against Correspondence Olaf Tyc, Department of Microbial Ecology, an herbivore of B.
    [Show full text]
  • Phylogeny and Morphology of Four New Species of Lasiodiplodia from Iran
    Persoonia 25, 2010: 1–10 www.persoonia.org RESEARCH ARTICLE doi:10.3767/003158510X524150 Phylogeny and morphology of four new species of Lasiodiplodia from Iran J. Abdollahzadeh 1,3, A. Javadi 2, E. Mohammadi Goltapeh3, R. Zare 2, A.J.L. Phillips 4 Key words Abstract Four new species of Lasiodiplodia; L. citricola, L. gilanensis, L. hormozganensis and L. iraniensis from various tree species in Iran are described and illustrated. The ITS and partial translation elongation factor-1 se- Botryosphaeriaceae α quence data were analysed to investigate their phylogenetic relationships with other closely related species and EF-1α genera. The four new species formed well-supported clades within Lasiodiplodia and were morphologically distinct ITS from all other known species. Lasiodiplodia phylogeny Article info Received: 11 March 2010; Accepted: 29 June 2010; Published: 27 July 2010. taxonomy INTRODUCTION as synonyms of L. theobromae since he could not separate them on morphological characters. However, on account of its Members of the Botryosphaeriaceae (Botryosphaeriales, morphological variability and wide host range it seems likely that Dothideomycetes, Ascomycota) are cosmopolitan and occur L. theobromae is a species complex. Recent studies based on on a wide range of monocotyledonous, dicotyledonous and sequence data have confirmed this and eight new species have gymnosperm hosts (von Arx & Müller 1954, Barr 1987). They been described since 2004 (Pavlic et al. 2004, 2008, Burgess are associated with various symptoms such as shoot blights, et al. 2006, Damm et al. 2007, Alves et al. 2008). stem cankers, fruit rots, dieback and gummosis (von Arx 1987) There have been no studies on the Lasiodiplodia species in and are also known as endophytes (Slippers & Wingfield Iran apart from a few reports of L.
    [Show full text]
  • Alpine Soil Bacterial Community and Environmental Filters Bahar Shahnavaz
    Alpine soil bacterial community and environmental filters Bahar Shahnavaz To cite this version: Bahar Shahnavaz. Alpine soil bacterial community and environmental filters. Other [q-bio.OT]. Université Joseph-Fourier - Grenoble I, 2009. English. tel-00515414 HAL Id: tel-00515414 https://tel.archives-ouvertes.fr/tel-00515414 Submitted on 6 Sep 2010 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. THÈSE Pour l’obtention du titre de l'Université Joseph-Fourier - Grenoble 1 École Doctorale : Chimie et Sciences du Vivant Spécialité : Biodiversité, Écologie, Environnement Communautés bactériennes de sols alpins et filtres environnementaux Par Bahar SHAHNAVAZ Soutenue devant jury le 25 Septembre 2009 Composition du jury Dr. Thierry HEULIN Rapporteur Dr. Christian JEANTHON Rapporteur Dr. Sylvie NAZARET Examinateur Dr. Jean MARTIN Examinateur Dr. Yves JOUANNEAU Président du jury Dr. Roberto GEREMIA Directeur de thèse Thèse préparée au sien du Laboratoire d’Ecologie Alpine (LECA, UMR UJF- CNRS 5553) THÈSE Pour l’obtention du titre de Docteur de l’Université de Grenoble École Doctorale : Chimie et Sciences du Vivant Spécialité : Biodiversité, Écologie, Environnement Communautés bactériennes de sols alpins et filtres environnementaux Bahar SHAHNAVAZ Directeur : Roberto GEREMIA Soutenue devant jury le 25 Septembre 2009 Composition du jury Dr.
    [Show full text]
  • For Publication European and Mediterranean Plant Protection Organization PM 7/24(3)
    For publication European and Mediterranean Plant Protection Organization PM 7/24(3) Organisation Européenne et Méditerranéenne pour la Protection des Plantes 18-23616 (17-23373,17- 23279, 17- 23240) Diagnostics Diagnostic PM 7/24 (3) Xylella fastidiosa Specific scope This Standard describes a diagnostic protocol for Xylella fastidiosa. 1 It should be used in conjunction with PM 7/76 Use of EPPO diagnostic protocols. Specific approval and amendment First approved in 2004-09. Revised in 2016-09 and 2018-XX.2 1 Introduction Xylella fastidiosa causes many important plant diseases such as Pierce's disease of grapevine, phony peach disease, plum leaf scald and citrus variegated chlorosis disease, olive scorch disease, as well as leaf scorch on almond and on shade trees in urban landscapes, e.g. Ulmus sp. (elm), Quercus sp. (oak), Platanus sycamore (American sycamore), Morus sp. (mulberry) and Acer sp. (maple). Based on current knowledge, X. fastidiosa occurs primarily on the American continent (Almeida & Nunney, 2015). A distant relative found in Taiwan on Nashi pears (Leu & Su, 1993) is another species named X. taiwanensis (Su et al., 2016). However, X. fastidiosa was also confirmed on grapevine in Taiwan (Su et al., 2014). The presence of X. fastidiosa on almond and grapevine in Iran (Amanifar et al., 2014) was reported (based on isolation and pathogenicity tests, but so far strain(s) are not available). The reports from Turkey (Guldur et al., 2005; EPPO, 2014), Lebanon (Temsah et al., 2015; Habib et al., 2016) and Kosovo (Berisha et al., 1998; EPPO, 1998) are unconfirmed and are considered invalid. Since 2012, different European countries have reported interception of infected coffee plants from Latin America (Mexico, Ecuador, Costa Rica and Honduras) (Legendre et al., 2014; Bergsma-Vlami et al., 2015; Jacques et al., 2016).
    [Show full text]
  • Philaenus Spumarius and Neophilaenus Campestris As Efficient Insect Vectors for Xylella Fastidiosa in Majorca (Spain)
    Philaenus spumarius and Neophilaenus campestris as efficient insect vectors for Xylella fastidiosa in Majorca (Spain) López-Mercadal1, J., Delgado-Serra1, S., Mercadal1, P., Seguí2, G., Busquets2, A., Gomila2, M., Paredes-Esquivel1, C., Miranda1, MA. 1 Applied Zoology and Animal Conservation. University of the Balearic Islands, Cra. Valldemossa km 7,5. Palma de Mallorca (07122). Spain. 2 Microbiology Laboratory. University of the Balearic Islands, Cra. Valldemossa km 7,5. Palma de Mallorca (07122). Spain. INTRODUCTION In 2016, Xylella fastidiosa was detected for the first time in the Balearic Islands. In 2017, EFSA granted a project to improve the knowledge about X. fastidiosa vectors in the Balearics. Objective of this study: investigate the role as vector of Philaenus spumarius and Neophilaenus campestris (Hemiptera, Aphrophoridae). We conducted two types of tests: A) A test to assess the natural infectivity of P. spumarius and N. campestris. B) A second test to assess the vector competence of P. spumarius. 2 MATERIALS AND METHODS ◼ Test A, adults were collected from 15/09/2020 Figure 1. Set up to 19/10/2020 from areas where plants for the IAP (96h had been confirmed to be positive contact) in the to X. fastidiosa (Xf). Field insects were kept in transmission tests groups of three to five in alfalfa (Medicago A and B. sativa L.) for the Inoculation Access Period (IAP) (Fig. 1). ◼ Test B, 100 P. spumarius N2-N3 nymphs were field collected between March and April 2020 in different orchards of Majorca. Nymphs were transferred to alfalfa in groups of 25 caged in polypropylene fabric mesh cages (30x30x30) Figure 2.
    [Show full text]
  • Aggregation and Survival of Neophilaenus Albipennis (Hemiptera: Cercopidae) Spittlebug Nymphs
    Eur. J. Entomol. 100: 493-499, 2003 ISSN 1210-5759 Aggregation and survivalNeophilaenus of albipennis (Hemiptera: Cercopidae) spittlebug nymphs Robert BIEDERMANN Landscape Ecology Group, Institute of Biology and Environmental Sciences, University of Oldenburg, 26111 Oldenburg, Germany; e-mail: [email protected] Key words. Aggregation,Neophilaenus albipennis, nymphs, spittlebug, survival, vegetation structure Abstract. The nymphs of spittlebugs (Hemiptera, Cercopidae) are xylem-feeders and live on herbs, grasses or woody plants within their self-produced spittle masses. Nymphs of the spittlebugNeophilaenus albipennis live aggregated in these spittle masses on their host plant Brachypodium pinnatum, a common grass in dry grassland. The objective of this study was to estimate nymphal mortality rates and to examine what role aggregation and vegetation structure play in the mortality of the nymphs. The aggregation and mor­ tality were measured using two different methods, direct monitoring and caging of nymphs. The nymphs passively aggregated with up to 4 nymphs per spittle and aggregation decreased with instar. The aggregation of the nymphs resulted in a reduced mortality in all instars. Although it has already been argued that aggregation may be an advantage, this study is the first direct evidence (i.e. direct measurement of single individuals) for the benefit of aggregation to individual spittlebug nymphs. Despite a clumped distribu­ tion of N. albipennis nymphs in tall vegetation, nymphal mortality was not correlated with vegetation height. INTRODUCTION one spittle mass have been documented (Halkka et al., Aggregation of insects in the immature stage has been 1977). Despite the ubiquity of aggregations in spittlebugs, frequently documented in various taxonomic groups.
    [Show full text]
  • Università Degli Studi Di Padova Dipartimento Di Biomedicina Comparata Ed Alimentazione
    UNIVERSITÀ DEGLI STUDI DI PADOVA DIPARTIMENTO DI BIOMEDICINA COMPARATA ED ALIMENTAZIONE SCUOLA DI DOTTORATO IN SCIENZE VETERINARIE Curriculum Unico Ciclo XXVIII PhD Thesis INTO THE BLUE: Spoilage phenotypes of Pseudomonas fluorescens in food matrices Director of the School: Illustrious Professor Gianfranco Gabai Department of Comparative Biomedicine and Food Science Supervisor: Dr Barbara Cardazzo Department of Comparative Biomedicine and Food Science PhD Student: Andreani Nadia Andrea 1061930 Academic year 2015 To my family of origin and my family that is to be To my beloved uncle Piero Science needs freedom, and freedom presupposes responsibility… (Professor Gerhard Gottschalk, Göttingen, 30th September 2015, ProkaGENOMICS Conference) Table of Contents Table of Contents Table of Contents ..................................................................................................................... VII List of Tables............................................................................................................................. XI List of Illustrations ................................................................................................................ XIII ABSTRACT .............................................................................................................................. XV ESPOSIZIONE RIASSUNTIVA ............................................................................................ XVII ACKNOWLEDGEMENTS ....................................................................................................
    [Show full text]
  • (12) United States Patent (10) Patent No.: US 7476,532 B2 Schneider Et Al
    USOO7476532B2 (12) United States Patent (10) Patent No.: US 7476,532 B2 Schneider et al. (45) Date of Patent: Jan. 13, 2009 (54) MANNITOL INDUCED PROMOTER Makrides, S.C., "Strategies for achieving high-level expression of SYSTEMIS IN BACTERAL, HOST CELLS genes in Escherichia coli,” Microbiol. Rev. 60(3):512-538 (Sep. 1996). (75) Inventors: J. Carrie Schneider, San Diego, CA Sánchez-Romero, J., and De Lorenzo, V., "Genetic engineering of nonpathogenic Pseudomonas strains as biocatalysts for industrial (US); Bettina Rosner, San Diego, CA and environmental process.” in Manual of Industrial Microbiology (US) and Biotechnology, Demain, A, and Davies, J., eds. (ASM Press, Washington, D.C., 1999), pp. 460-474. (73) Assignee: Dow Global Technologies Inc., Schneider J.C., et al., “Auxotrophic markers pyrF and proC can Midland, MI (US) replace antibiotic markers on protein production plasmids in high cell-density Pseudomonas fluorescens fermentation.” Biotechnol. (*) Notice: Subject to any disclaimer, the term of this Prog., 21(2):343-8 (Mar.-Apr. 2005). patent is extended or adjusted under 35 Schweizer, H.P.. "Vectors to express foreign genes and techniques to U.S.C. 154(b) by 0 days. monitor gene expression in Pseudomonads. Curr: Opin. Biotechnol., 12(5):439-445 (Oct. 2001). (21) Appl. No.: 11/447,553 Slater, R., and Williams, R. “The expression of foreign DNA in bacteria.” in Molecular Biology and Biotechnology, Walker, J., and (22) Filed: Jun. 6, 2006 Rapley, R., eds. (The Royal Society of Chemistry, Cambridge, UK, 2000), pp. 125-154. (65) Prior Publication Data Stevens, R.C., “Design of high-throughput methods of protein pro duction for structural biology.” Structure, 8(9):R177-R185 (Sep.
    [Show full text]
  • Lasiodiplodia Species Associated with Dying Euphorbia Ingens in South
    This article was downloaded by: [University of Pretoria] On: 20 October 2012, At: 06:21 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK Southern Forests: a Journal of Forest Science Publication details, including instructions for authors and subscription information: http://www.tandfonline.com/loi/tsfs20 Lasiodiplodia species associated with dying Euphorbia ingens in South Africa J A van der Linde a , D L Six b , M J Wingfield a & J Roux a a Department of Microbiology and Plant Pathology, DST/NRF Centre of Excellence in Tree Health Biotechnology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Private Bag X20, Hatfield, Pretoria, 0028, South Africa b College of Forestry and Conservation, Department of Ecosystem and Conservation Sciences, University of Montana, Missoula, MT, 59812, USA Version of record first published: 11 Jan 2012. To cite this article: J A van der Linde, D L Six, M J Wingfield & J Roux (2011): Lasiodiplodia species associated with dying Euphorbia ingens in South Africa, Southern Forests: a Journal of Forest Science, 73:3-4, 165-173 To link to this article: http://dx.doi.org/10.2989/20702620.2011.639499 PLEASE SCROLL DOWN FOR ARTICLE Full terms and conditions of use: http://www.tandfonline.com/page/terms-and-conditions This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date.
    [Show full text]