L'université De Nantes Comue Universite Bretagne Loire

Total Page:16

File Type:pdf, Size:1020Kb

L'université De Nantes Comue Universite Bretagne Loire T HESE DE DOCTORAT DE L'UNIVERSITÉ DE NANTES COMUE UNIVERSITE BRETAGNE LOIRE ÉCOLE DOCTORALE N° 600 École doctorale : Écologie, Géosciences, Agronomie et Alimentation Spécialité : Microbiologie, virologie et parasitologie Par Nassima ILLIKOUD Caractérisation des mécanismes d’altération des produits carnés et de la mer par Brochothrix thermosphacta Approches phénotypique, génomique, transcriptomique et analyse du volatilome Thèse présentée et soutenue à Oniris, Nantes, le 9 juillet 2018 Unité de recherche : UMR 1014, INRA, Oniris, Université Bretagne-Loire Composition du Jury : Président Michel DION Professeur, Université de Nantes, France Rapporteurs Christophe CHASSARD Directeur de recherche, INRA, Clermont-Ferrand, France Marie-Christine CHAMPOMIER-VERGÈS Directrice de recherche, INRA, Jouy-en-Josas, France Examinateur Anne-Marie REVOL-JUNELLES Professeur, Université de Lorraine, France Directeur de thèse Monique ZAGOREC Directrice de Recherche, INRA, Nantes, France Co-encadrant de thèse Emmanuel JAFFRÈS Maître de conférences, Oniris, Nantes, France Invités Marie-France PILET Professeur, Oniris, Nantes, France Yves LE LOIR Directeur de recherche, INRA, Rennes, France « La réussite est l’accuulatio d’échecs, d’erreurs, de faux départs, de confusions, et la volonté de continuer malgré tout. » Nick Gleason Je ddie cette thse à ma me et ma sœu qui nous ont uitts top tôt… w w W W / / a/ / ! " W ! #a w W a 5 % & & ' W I t aC t '' + W a , -! W + ! ' ! ! , W ! . W'' a C t . , + , , ' aC t , , b W ! + ! w! 0 I C ' + ', ' a ! 1! /2 " 3 4 w#! ' . ! wt/w tCD. W+ ! ' ! , 7 a 5 8 w 9 D :# 1 !; D/<a1 a ! ' , , , W ! 0 / w / :. ' & a ! h ; ! a#&540hC W ' aD 5 w ! ! .' t ' 5 . + , " ! W / a! , a Wa / ! ! > # w aD 1 , " " a + tCD. w :, ' 0 + ??; a ! #! . + ! > ! 4 / , 1 a ! t , ! W ! >aw + W ! , , 1 , @ ! W 1 b & , ! > 7 . A 1 a w ' #2 w b . 5 b # D ! ! W 0 , > w ! a 9 @ W # &+ ' ! a D ! '' #05 .' W ! .' ' ' B , , , + , > , ! 0 w 0 & & + + & '! + 4 ! C / C 1 !, D CC & D CCC D CCE t F CE # !, '! G CEC & G CEE 3 ', H CEI 4' CC CI . !, CD CIC 4 CJ CIE 0+ CK CII / ! ' . CH CIIC I CH CIIE D ' EC CID C '' ! ! L ' . EE CIF 4 ' EE CIJ 1 ! ' . EF CIJC t ' EF CIJE t ' . ! :.# ; ID CIG 1 ! ' '! ! . ' ! ID CIGC . ID CIGE t IJ CIGI t IJ CIK D ' . IG CIH / IH CD 1 ! 2 . DE CDC # ! , , DD CDE # ! , DD CDI # ' DF / E 5 ! , , . DK EC t DK EE D 2 ' ' ! . DH EEC 4 FM EEE a FE EEEC . ! L FE EEEE 1! L . FF EEEI 5b# + FF EEED . ' ! t/w FF EEEF CJ1 5b# ,! FJ EEEJ a#&540hC FJ EEEG wt/w FG EEEK tCD. FG EEEH # < FK EEECM 1 FH EEI w JM EEIC / ' . JM EEIE . ' t/w JM EEII / 2 ' ! JC EEID # JD EED 5 JG EEF / GM EI / , ' GF / I / ! . GG IC t GG IE h ' ! , ' ' . /5 IIG 0#t CGF .1#1C I ..t IMGM GG IEC # GK IEE 4 GH IEI h! 4' KM IEIC / ' ' KM IEIE .+ ' KF IED D ,! ' KF IEDC D KF IEDE D L ! 5b# KJ IEDI D ,! KG IEDD D KG IEF D t KK IEJ 4 ! ' ! , HE IEG / CMC II w CCF ID / , ' CCJ / D # ' . CCK DC t CCK DE 0 ' ' ! . CEM DEC 4 CEM DEE a CEC DEEC . ! L CEC DEEE a CEE DEEI /! CEE DEED h! / : h/ ; CEE DEEF wb# ,! CEI DEEJ 0 CED DEI w CEF DEIC . ! L ' CEF DEIE I ! ! CEJ DEII ! CEG DEID / 2 ' '' + ! CEK DEIF D ' ! CIM DEIJ D ' ! CIJ DED / CIH DI / , ' CDG 5 ! CDK + CFI w' !, CFF ! & #5b # 5 + , #b4 #! b 4 #bh # # ' #wb # w , #L 8 # .# . ! # .I4 . I 4' .&#10 . & #! 1 0 5b# 5 + # /51 / ! 5b# 1, /C> / C ! > /hD / ' h ! D ' /w41tw / w! 4 1 t w 5. 5'' + .a.& . a . ! & .b# . b # C#h C #! h!2 C/ ' ! D/<a1 D / ! a 1 4/CaI 4 / ' C a ! I! 4Cw.a.w 4 CN w .+ a 4bw# 4 b w #! , 41h 4 h!2 ' 1 2 O.DD O . ' D D &#. & # . <. &. & . a#&540hC a +# & 5 <4 2 0 ' C! a#t a ' # t9!!<t9! a51 a 1! ! a4/C#a a 1 C a&10 a & 1, 0! b#5 b # 5 b#5t b # 5 t b/.4 b / ' . ! 4' h./5 h!2 ' . / 5 t. t' . 1 t t/# t / #! t/w t / w tCD. t C D . I t ! t9D5. t 9 D 5 . t01 t ' 1 wt/w w . t/w wb# , wb# 1,! wb# w wb# 15 1 5 11h 1' 1 ! h! 10## 1 0 # #! 0#. 0 . .50# t t 0.. 0 . .50# 0 0 ., / 0a# 0 wb# 0 ' wb# >C/ > C / >aw > a+ w >tDa# >L! tD a ! #! h/ h! / t t9!! & + 0 CC / ,, D 0 CE # ' ' ! L ' . EI 0 CI a '' . ' ! ! EI 0 CD h! / : h/ ; . EG 0 CF D L ' . . IH 0 EC . FD 0 IC / ' ! ' ' . /5 IIG 0#t CGF .1#1C CI ..t IMGM KC 0 IE t ' KJ 0 II D HM 0 ID b ' ! L ! /hD ' ! HC 0 IF & ' . /5 IIG ' ! CMI 0 IJ & ' . .4 ' ! CCC 0 IG & ' . .44 ' ! CCI 0 IK & ' /w41tw ! ' /5 IIG .1#1C I 0#t CGF CCD 0 DC h/ ' : ; ' ! L ' . /5 IIG 0#t CGF CEK 0 DE 1 ' wb# , CEH 0 DI D ! /5 IIG 0#t CGF CDM 0 DD D ! /5IIG 0#t CGF CDI + & '! C! CC . + :CHJC P EMCI; F C! CE . ! ! ' B' ! J C! CI 3 ' ', 9! H C! CD w , '' ' CM C! CF t ! ' . ! ' . . CH C! CJ 1 ! ' . DC C! CG 5 + + . DI C! EC 1' ' ' t/w JC C! EE a ! ' t/w tCD. JD C! EI # .
Recommended publications
  • Lactococcus Piscium : a Psychotrophic Lactic Acid Bacterium with Bioprotective Or Spoilage Activity in Food - a Review
    1 Journal of Applied Microbiology Achimer October 2016, Volume 121, Issue 4, Pages 907-918 http://dx.doi.org/10.1111/jam.13179 http://archimer.ifremer.fr http://archimer.ifremer.fr/doc/00334/44517/ © 2016 The Society for Applied Microbiology Lactococcus piscium : a psychotrophic lactic acid bacterium with bioprotective or spoilage activity in food - a review Saraoui Taous 1, 2, 3, Leroi Francoise 1, * , Björkroth Johanna 4, Pilet Marie France 2, 3 1 Ifremer, Laboratoire Ecosystèmes Microbiens et Molécules Marines pour les Biotechnologies (EM3 B),; Rue de l'Ile d'Yeu 44311 Nantes Cedex 03, France 2 LUNAM Université, Oniris; UMR1014 Secalim, Site de la Chantrerie; F-44307 Nantes, France 3 INRA; F-44307 Nantes ,France 4 University of Helsinki; Department of Food Hygiene and Environmental Health; Helsinki ,Finland * Corresponding author : Françoise Leroi, tel.: +33240374172; fax: +33240374071 ; email address : [email protected] Abstract : The genus Lactococcus comprises twelve species, some known for decades and others more recently described. Lactococcus piscium, isolated in 1990 from rainbow trout, is a psychrotrophic lactic acid bacterium (LAB), probably disregarded because most of the strains are unable to grow at 30°C. During the last 10 years, this species has been isolated from a large variety of food: meat, seafood and vegetables, mostly packed under vacuum (VP) or modified atmosphere (MAP) and stored at chilled temperature. Recently, culture-independent techniques used for characterization of microbial ecosystems have highlighted the importance of L. piscium in food. Its role in food spoilage varies according to the strain and the food matrix. However, most studies have indicated that L.
    [Show full text]
  • Evolutionary Origin of Type IV Classical Cadherins in Arthropods Mizuki Sasaki1,4, Yasuko Akiyama-Oda1,2 and Hiroki Oda1,3*
    Sasaki et al. BMC Evolutionary Biology (2017) 17:142 DOI 10.1186/s12862-017-0991-2 RESEARCHARTICLE Open Access Evolutionary origin of type IV classical cadherins in arthropods Mizuki Sasaki1,4, Yasuko Akiyama-Oda1,2 and Hiroki Oda1,3* Abstract Background: Classical cadherins are a metazoan-specific family of homophilic cell-cell adhesion molecules that regulate morphogenesis. Type I and type IV cadherins in this family function at adherens junctions in the major epithelial tissues of vertebrates and insects, respectively, but they have distinct, relatively simple domain organizations that are thought to have evolved by independent reductive changes from an ancestral type III cadherin, which is larger than derived paralogs and has a complicated domain organization. Although both type III and type IV cadherins have been identified in hexapods and branchiopods, the process by which the type IV cadherin evolved is still largely unclear. Results: Through an analysis of arthropod genome sequences, we found that the only classical cadherin encoded in chelicerate genomes was the type III cadherin and that the two type III cadherin genes found in the spider Parasteatoda tepidariorum genome exhibited a complex yet ancestral exon-intron organization in arthropods. Genomic and transcriptomic data from branchiopod, copepod, isopod, amphipod, and decapod crustaceans led us to redefine the type IV cadherin category, which we separated into type IVa and type IVb, which displayed a similar domain organization, except type IVb cadherins have a larger number of extracellular cadherin (EC) domainsthandotypeIVacadherins (nine versus seven). We also showed that type IVa cadherin genes occurred in the hexapod, branchiopod, and copepod genomes whereas only type IVb cadherin genes were present in malacostracans.Furthermore,comparative characterization of the type IVb cadherins suggested that the presence of two extra EC domains in their N-terminal regions represented primitive characteristics.
    [Show full text]
  • Longitudinal Metatranscriptomic Analysis of a Meat Spoilage Microbiome Detects Abundant
    bioRxiv preprint doi: https://doi.org/10.1101/2020.08.13.250449; this version posted August 14, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Longitudinal metatranscriptomic analysis of a meat spoilage microbiome detects abundant 2 continued fermentation and environmental stress responses during shelf life and beyond. 3 4 5 Running title: Longitudinal analysis of a meat spoilage microbiome 6 7 Jenni Hultman1,2, Per Johansson1, Johanna Björkroth1* 8 1Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University 9 of Helsinki, Agnes Sjöbergin katu 2, 00014 Helsinki University, Finland 10 * Corresponding author 11 2 Current affiliation: Department of Microbiology, University of Helsinki, Finland 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.08.13.250449; this version posted August 14, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 12 Abstract 13 Microbial food spoilage is a complex phenomenon associated with the succession of the specific 14 spoilage organisms (SSO) over the course of time. We performed a longitudinal metatranscriptomic 15 study on a modified atmosphere packaged (MAP) beef product to increase understanding of the 16 longitudinal behavior of a spoilage microbiome during shelf life and onward. Based on the annotation 17 of the mRNA reads, we recognized three stages related to the active microbiome that were descriptive 18 for the sensory quality of the beef: acceptable product (AP), early spoilage (ES) and late spoilage 19 (LS).
    [Show full text]
  • L'aquarium: Vision Et Représentation Des Mondes Subaquatiques
    L’Aquarium : vision et représentation des mondes subaquatiques : un dispositif d’exposition au croisement de l’art et de la science Quentin Montagne To cite this version: Quentin Montagne. L’Aquarium : vision et représentation des mondes subaquatiques : un dispositif d’exposition au croisement de l’art et de la science. Art et histoire de l’art. Université Rennes 2, 2019. Français. NNT : 2019REN20010. tel-02410780v2 HAL Id: tel-02410780 https://tel.archives-ouvertes.fr/tel-02410780v2 Submitted on 28 Feb 2020 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 soutenue le 07 janvier 2019, devant le jury composé de: L'.Aquarium: Éric Baratay vision et représentation Professeur des universités, Université Jean Moulin Lyon 3 (rapporteur) des mondes subaquatiques Sandrine Ferret Professeure des universités, Université Rennes 2 Un dispositif d'exposition Nicolas Roc'h au croisement de l'art et de la science artiste plasticien Corine Pencenat Maître de conférences HDR, Université de Strasbourg Olivier Schefer Professeur des universités. Université Paris 1 Panthéon-Sorbonne (rapporteur) UNIVERSITE Christophe Viart j:f;jil+iCHII Professeur des unrversités. Université Paris 1 Panthéon-Sorbonne Montagne,l!IJl;J=i Quentin.
    [Show full text]
  • Antimicrobial Food Packaging with Biodegradable Polymers and Bacteriocins
    molecules Review Antimicrobial Food Packaging with Biodegradable Polymers and Bacteriocins Małgorzata Gumienna * and Barbara Górna Laboratory of Fermentation and Biosynthesis, Department of Food Technology of Plant Origin, Pozna´nUniversity of Life Sciences, Wojska Polskiego 31, 60-624 Pozna´n,Poland; [email protected] * Correspondence: [email protected]; Tel.: +48-61-848-7267 Abstract: Innovations in food and drink packaging result mainly from the needs and requirements of consumers, which are influenced by changing global trends. Antimicrobial and active packaging are at the forefront of current research and development for food packaging. One of the few natural polymers on the market with antimicrobial properties is biodegradable and biocompatible chitosan. It is formed as a result of chitin deacetylation. Due to these properties, the production of chitosan alone or a composite film based on chitosan is of great interest to scientists and industrialists from various fields. Chitosan films have the potential to be used as a packaging material to maintain the quality and microbiological safety of food. In addition, chitosan is widely used in antimicrobial films against a wide range of pathogenic and food spoilage microbes. Polylactic acid (PLA) is considered one of the most promising and environmentally friendly polymers due to its physical and chemical properties, including renewable, biodegradability, biocompatibility, and is considered safe (GRAS). There is great interest among scientists in the study of PLA as an alternative food packaging film with improved properties to increase its usability for food packaging applications. The aim of this review article is to draw attention to the existing possibilities of using various components in combination Citation: Gumienna, M.; Górna, B.
    [Show full text]
  • First Comprehensive Analysis of Lysine Acetylation in Alvinocaris Longirostris from the Deep-Sea Hydrothermal Vents Min Hui1,2, Jiao Cheng1,2 and Zhongli Sha1,2,3*
    Hui et al. BMC Genomics (2018) 19:352 https://doi.org/10.1186/s12864-018-4745-3 RESEARCH ARTICLE Open Access First comprehensive analysis of lysine acetylation in Alvinocaris longirostris from the deep-sea hydrothermal vents Min Hui1,2, Jiao Cheng1,2 and Zhongli Sha1,2,3* Abstract Background: Deep-sea hydrothermal vents are unique chemoautotrophic ecosystems with harsh conditions. Alvinocaris longirostris is one of the dominant crustacean species inhabiting in these extreme environments. It is significant to clarify mechanisms in their adaptation to the vents. Lysine acetylation has been known to play critical roles in the regulation of many cellular processes. However, its function in A. longirostris and even marine invertebrates remains elusive. Our study is the first, to our knowledge, to comprehensively investigate lysine acetylome in A. longirostris. Results: In total, 501 unique acetylation sites from 206 proteins were identified by combination of affinity enrichment and high-sensitive-massspectrometer. It was revealed that Arg, His and Lys occurred most frequently at the + 1 position downstream of the acetylation sites, which were all alkaline amino acids and positively charged. Functional analysis revealed that the protein acetylation was involved in diverse cellular processes, such as biosynthesis of amino acids, citrate cycle, fatty acid degradation and oxidative phosphorylation. Acetylated proteins were found enriched in mitochondrion and peroxisome, and many stress response related proteins were also discovered to be acetylated, like arginine kinases, heat shock protein 70, and hemocyanins. In the two hemocyanins, nine acetylation sites were identified, among which one acetylation site was unique in A. longirostris when compared with other shallow water shrimps.
    [Show full text]
  • Safety Assessment of Dairy Microorganisms: the Lactococcus Genus Erick Casalta, Marie-Christine Montel
    Safety assessment of dairy microorganisms: The Lactococcus genus Erick Casalta, Marie-Christine Montel To cite this version: Erick Casalta, Marie-Christine Montel. Safety assessment of dairy microorganisms: The Lacto- coccus genus. International Journal of Food Microbiology, Elsevier, 2008, 126 (3), pp.271-273. 10.1016/j.ijfoodmicro.2007.08.013. hal-02667687 HAL Id: hal-02667687 https://hal.inrae.fr/hal-02667687 Submitted on 31 May 2020 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. Available online at www.sciencedirect.com International Journal of Food Microbiology 126 (2008) 271–273 www.elsevier.com/locate/ijfoodmicro Safety assessment of dairy microorganisms: The Lactococcus genus☆ ⁎ Erick Casalta a, , Marie-Christine Montel b a INRA, UR45 Recherches sur le Développement de l'Elevage, Campus Grossetti, F-20250 Corté, France b INRA, UMT545 Recherches Fromagères, 36, rue de Salers, F-15000 Aurillac, France Abstract The Lactococcus genus includes 5 species. Lactococcus lactis subsp. lactis is the most common in dairy product but L. garviae has been also isolated. Their biotope is animal skin and plants. Owing to its biochemical characteristics, strains of L. lactis are widely used in dairy fermented products processing.
    [Show full text]
  • Assessment of the Risk to Norwegian Biodiversity from Import and Keeping of Crustaceans in Freshwater Aquaria
    VKM Report 2021: 02 Assessment of the risk to Norwegian biodiversity from import and keeping of crustaceans in freshwater aquaria Scientific Opinion of the Panel on Alien Organisms and Trade in Endangered Species of the Norwegian Scientific Committee for Food and Environment VKM Report 2021: 02 Assessment of the risk to Norwegian biodiversity from import and keeping of crustaceans in freshwater aquaria. Scientific Opinion of the Panel on Alien Organisms and trade in Endangered Species (CITES) of the Norwegian Scientific Committee for Food and Environment 15.02.2021 ISBN: 978-82-8259-356-4 ISSN: 2535-4019 Norwegian Scientific Committee for Food and Environment (VKM) Postboks 222 Skøyen 0213 Oslo Norway Phone: +47 21 62 28 00 Email: [email protected] vkm.no vkm.no/english Cover photo: Mohammed Anwarul Kabir Choudhury/Mostphotos.com Suggested citation: VKM, Gaute Velle, Lennart Edsman, Charlotte Evangelista, Stein Ivar Johnsen, Martin Malmstrøm, Trude Vrålstad, Hugo de Boer, Katrine Eldegard, Kjetil Hindar, Lars Robert Hole, Johanna Järnegren, Kyrre Kausrud, Inger Måren, Erlend B. Nilsen, Eli Rueness, Eva B. Thorstad and Anders Nielsen (2021). Assessment of the risk to Norwegian biodiversity from import and keeping of crustaceans in freshwater aquaria. Scientific Opinion of the Panel on Alien Organisms and trade in Endangered Species (CITES) of the Norwegian Scientific Committee for Food and Environment. VKM report 2021:02, ISBN: 978-82-8259- 356-4, ISSN: 2535-4019. Norwegian Scientific Committee for Food and Environment (VKM), Oslo, Norway. 2 Assessment of the risk to Norwegian biodiversity from import and keeping of crustaceans in freshwater aquaria Preparation of the opinion The Norwegian Scientific Committee for Food and Environment (Vitenskapskomiteen for mat og miljø, VKM) appointed a project group to draft the opinion.
    [Show full text]
  • Crustacea and Shrimp in the Freshwater Aquarium JBL 2
    BROCHUREJBL9 What - Why - How ? Crustacea and shrimp in the freshwater aquarium JBL 2 Contents Page Preliminary note ............................................................. 3 Preconditions .................................................................. 4 Equipping the aquarium ................................................. 4 The right water ............................................................... 6 Food ............................................................................ 10 Care ............................................................................. 11 Communities ................................................................. 12 Overview of species - shrimp Dwarf shrimp ................................................................ 13 Fan shrimp ..................................................................... 14 Large-clawed shrimp ...................................................... 15 Overview of species - crustaceans Dwarf crayfish ............................................................... 16 Large American crayfish ................................................. 17 Cherax from Australia and Papua New Guinea .............. 18 Crab .............................................................................. 22 Photo overview: Dwarf shrimp ................................................................ 24 Fan shrimp ..................................................................... 26 Large-clawed shrimp ...................................................... 27 Dwarf crayfish
    [Show full text]
  • Anguillid Eels As a Surrogate Species for Conservation of Freshwater
    Kobe University Repository : Kernel タイトル Anguillid eels as a surrogate species for conservation of freshwater Title biodiversity in Japan 著者 Itakura, Hikaru / Wakiya, Ryoshiro / Gollock, Matthew / Kaifu, Kenzo Author(s) 掲載誌・巻号・ページ Scientific Reports,10(1):8790 Citation 刊行日 2020-05-29 Issue date 資源タイプ Journal Article / 学術雑誌論文 Resource Type 版区分 publisher Resource Version © The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party 権利 material in this article are included in the article’s Creative Commons Rights license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. DOI 10.1038/s41598-020-65883-4 JaLCDOI URL http://www.lib.kobe-u.ac.jp/handle_kernel/90007418 PDF issue: 2021-10-01 www.nature.com/scientificreports OPEN Anguillid eels as a surrogate species for conservation of freshwater biodiversity in Japan Hikaru Itakura1,2 ✉ , Ryoshiro Wakiya3,4, Matthew Gollock5 & Kenzo Kaifu6 To monitor and manage biodiversity, surrogate species (i.e., indicator, umbrella and fagship species) have been proposed where conservation resources are focused on a limited number of focal organisms.
    [Show full text]
  • Molecular Cloning, Structure and Phylogenetic Analysis of a Hemocyanin Subunit from the Black Sea Crustacean Eriphia Verrucosa (Crustacea, Malacostraca)
    G C A T T A C G G C A T genes Article Molecular Cloning, Structure and Phylogenetic Analysis of a Hemocyanin Subunit from the Black Sea Crustacean Eriphia verrucosa (Crustacea, Malacostraca) Elena Todorovska 1 , Martin Ivanov 1, Mariana Radkova 1, Alexandar Dolashki 2 and Pavlina Dolashka 2,* 1 AgroBioInstitute, Agricultural Academy, 8 Dragan Tsankov, 1164 Sofia, Bulgaria; [email protected] (E.T.); [email protected] (M.I.); [email protected] (M.R.) 2 Institute of Organic Chemistry with Centre of Phytochemistry, BAS, Block 9 “Akademik Bonchev” Street, 1113 Sofia, Bulgaria; [email protected] * Correspondence: [email protected] Abstract: Hemocyanins are copper-binding proteins that play a crucial role in the physiological processes in crustaceans. In this study, the cDNA encoding hemocyanin subunit 5 from the Black sea crab Eriphia verrucosa (EvHc5) was cloned using EST analysis, RT-PCR and rapid amplification of the cDNA ends (RACE) approach. The full-length cDNA of EvHc5 was 2254 bp, consisting of a 50 and 30 untranslated regions and an open reading frame of 2022 bp, encoding a protein consisting of 674 amino acid residues. The protein has an N-terminal signal peptide of 14 amino acids as is expected for proteins synthesized in hepatopancreas tubule cells and secreted into the hemolymph. The 3D model showed the presence of three functional domains and six conserved histidine residues that participate in the formation of the copper active site in Domain 2. The EvHc5 is O-glycosylated and the glycan is exposed on the surface of the subunit similar to Panulirus interruptus.
    [Show full text]
  • Crustacean Genome Exploration Reveals the Evolutionary Origin of White Spot Wsv192, Wsv267, Wsv282, Hypothetical Protein (13) Syndrome Virus
    1/25/2019 • (van Hulten et al., 2001; Yang et al., 2001) Crustacean Genome Exploration WSSV: enigmatic shrimp virus Envelope Nucleocapsid Embedded with structural proteins responsible Protein shell containing Reveals the Evolutionary Origin for host cell entry genomic DNA of Deadly Shrimp Virus Satoshi Kawato, Hidehiro Kondo, and Ikuo Hirono Tail-like extension Tokyo University of Marine Science and Technology, Japan Envelope extension 250-380 nm of unknown function Inouye et al. (1994) • Double-stranded DNA virus (circular, ca. 300 kbp) • Extremely broad host range (Lo et al., 1996; Otta et al., 1999) • Few relatives reported: isolated taxonomic position (family Nimaviridae) PAG XXVII • Little knowledge on evolution and phylogeny January 12, 2019 Studying shrimp (and their pathogens) does matter Viral “fossils” buried in the host genome shrimp aquaculture production (tons) 2016 fishery commodities global export Marsupenaeus japonicus BAC clone Mj024A04 (Koyama et al., 2010) 6,000,000 (value, USD) 2016 production: 5,000,000 $22.9 billion 5.18 million tons (16%) Shrimps 4,000,000 3,000,000 2,000,000 (modified from Koyama et al., 2010) 1,000,000 • WSSV homologs in localized in the cell nucleus as repetitive elements (Koyama et al., 2010) 0 Grand total: $142.8 billion 1980 1990 2000 2010 • Over 30 WSSV homologs identified in M. japonicus genome (Shitara, unpublished; Wang, unpublished) Whiteleg shrimp Asian tiger shrimp Kuruma shrimp Litopenaeus vannamei Penaeus monodon Marsupenaeus japonicus 6 Shrimp aquaculture production White spot disease
    [Show full text]