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  1. Article ; Online: Transcriptomic evidence of a fourth mininucleovirus (Mininucleoviridae): A rapidly growing family among the Nucleo-Cytoplasmic Large DNA viruses (NCLDVs).

    Burgess, Amy L / Bojko, Jamie

    Journal of invertebrate pathology

    2024  Volume 204, Page(s) 108096

    Abstract: The Mininucleoviridae are crustacean-infecting viruses thought to drive mortality across aquatic biomes. Three have been characterised from Carcinus maenas, Panulirus argus, and Dikerogammarus haemobaphes. We screened 202 SRA datasets (NCBI) for novel ... ...

    Abstract The Mininucleoviridae are crustacean-infecting viruses thought to drive mortality across aquatic biomes. Three have been characterised from Carcinus maenas, Panulirus argus, and Dikerogammarus haemobaphes. We screened 202 SRA datasets (NCBI) for novel mininucleoviruses from 44 amphipod species. Three metatranscriptome datasets from Gammarus lacustris contained sequences with similarity to Dikerogammarus haemobaphes mininucleovirus. Assembly resulted in 19 transcripts, 16 were putatively polycistronic. The putative Gammarus lacustris mininucleovirus shares 46 homologues with other mininucleoviruses (similarity range: 24.07 - 78.2 %). The transcripts from this putative virus highlight its likely association with the Mininucleoviridae.
    Language English
    Publishing date 2024-03-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 390885-9
    ISSN 1096-0805 ; 0022-2011
    ISSN (online) 1096-0805
    ISSN 0022-2011
    DOI 10.1016/j.jip.2024.108096
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Histopathological screening of Pontogammarus robustoides (Amphipoda), an invader on route to the United Kingdom

    Warren, Daniel A. / Burgess, Amy L. / Prati, Sebastian / Bacela-Spychalska, Karolina / S. J. Rogers, Martin / Bojko, Jamie

    Journal of Invertebrate Pathology. 2023 Sept., v. 200 p.107970-

    2023  

    Abstract: Biological invasions may act as conduits for pathogen introduction. To determine which invasive non-native species pose the biggest threat, we must first determine the symbionts (pathogens, parasites, commensals, mutualists) they carry, via pathological ... ...

    Abstract Biological invasions may act as conduits for pathogen introduction. To determine which invasive non-native species pose the biggest threat, we must first determine the symbionts (pathogens, parasites, commensals, mutualists) they carry, via pathological surveys that can be conducted in multiple ways (i.e., molecular, pathological, and histological). Whole animal histopathology allows for the observation of pathogenic agents (virus to Metazoa), based on their pathological effect upon host tissue. Where the technique cannot accurately predict pathogen taxonomy, it does highlight pathogen groups of importance. This study provides a histopathological survey of Pontogammarus robustoides (invasive amphipod in Europe) as a baseline for symbiont groups that may translocate to other areas/hosts in future invasions. Pontogammarus robustoides (n = 1,141) collected throughout Poland (seven sites), were noted to include a total of 13 symbiotic groups: a putative gut epithelia virus (overall prevalence = 0.6%), a putative hepatopancreatic cytoplasmic virus (1.4%), a hepatopancreatic bacilliform virus (15.7%), systemic bacteria (0.7%), fouling ciliates (62.0%), gut gregarines (39.5%), hepatopancreatic gregarines (0.4%), haplosporidians (0.4%), muscle infecting microsporidians (6.4%), digeneans (3.5%), external rotifers (3.0%), an endoparasitic arthropod (putatively: Isopoda) (0.1%), and Gregarines with putative microsporidian infections (1.4%). Parasite assemblages partially differed across collection sites. Co-infection patterns revealed strong positive and negative associations between five parasites. Microsporidians were common across sites and could easily spread to other areas following the invasion of P. robustoides. By providing this initial histopathological survey, we hope to provide a concise list of symbiont groups for risk-assessment in the case of a novel invasion by this highly invasive amphipod.
    Keywords Amphipoda ; Ciliophora ; Isopoda ; Microsporidia ; Rotifera ; arthropods ; digestive system ; endoparasites ; gregarines ; histology ; histopathology ; introduced species ; invasive species ; mixed infection ; muscles ; pathogens ; risk assessment ; surveys ; symbionts ; taxonomy ; viruses ; Poland ; United Kingdom ; Biological Invasions ; Haplosporidium ; Parasite
    Language English
    Dates of publication 2023-09
    Publishing place Elsevier Inc.
    Document type Article ; Online
    ZDB-ID 390885-9
    ISSN 1096-0805 ; 0022-2011
    ISSN (online) 1096-0805
    ISSN 0022-2011
    DOI 10.1016/j.jip.2023.107970
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Histopathological screening of Pontogammarus robustoides (Amphipoda), an invader on route to the United Kingdom.

    Warren, Daniel A / Burgess, Amy L / Prati, Sebastian / Bacela-Spychalska, Karolina / S J Rogers, Martin / Bojko, Jamie

    Journal of invertebrate pathology

    2023  Volume 200, Page(s) 107970

    Abstract: Biological invasions may act as conduits for pathogen introduction. To determine which invasive non-native species pose the biggest threat, we must first determine the symbionts (pathogens, parasites, commensals, mutualists) they carry, via pathological ... ...

    Abstract Biological invasions may act as conduits for pathogen introduction. To determine which invasive non-native species pose the biggest threat, we must first determine the symbionts (pathogens, parasites, commensals, mutualists) they carry, via pathological surveys that can be conducted in multiple ways (i.e., molecular, pathological, and histological). Whole animal histopathology allows for the observation of pathogenic agents (virus to Metazoa), based on their pathological effect upon host tissue. Where the technique cannot accurately predict pathogen taxonomy, it does highlight pathogen groups of importance. This study provides a histopathological survey of Pontogammarus robustoides (invasive amphipod in Europe) as a baseline for symbiont groups that may translocate to other areas/hosts in future invasions. Pontogammarus robustoides (n = 1,141) collected throughout Poland (seven sites), were noted to include a total of 13 symbiotic groups: a putative gut epithelia virus (overall prevalence = 0.6%), a putative hepatopancreatic cytoplasmic virus (1.4%), a hepatopancreatic bacilliform virus (15.7%), systemic bacteria (0.7%), fouling ciliates (62.0%), gut gregarines (39.5%), hepatopancreatic gregarines (0.4%), haplosporidians (0.4%), muscle infecting microsporidians (6.4%), digeneans (3.5%), external rotifers (3.0%), an endoparasitic arthropod (putatively: Isopoda) (0.1%), and Gregarines with putative microsporidian infections (1.4%). Parasite assemblages partially differed across collection sites. Co-infection patterns revealed strong positive and negative associations between five parasites. Microsporidians were common across sites and could easily spread to other areas following the invasion of P. robustoides. By providing this initial histopathological survey, we hope to provide a concise list of symbiont groups for risk-assessment in the case of a novel invasion by this highly invasive amphipod.
    MeSH term(s) Animals ; Amphipoda/microbiology ; Host-Parasite Interactions ; Parasites ; Microsporidia ; United Kingdom ; Introduced Species ; Apicomplexa/physiology
    Language English
    Publishing date 2023-07-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 390885-9
    ISSN 1096-0805 ; 0022-2011
    ISSN (online) 1096-0805
    ISSN 0022-2011
    DOI 10.1016/j.jip.2023.107970
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 958: Show issues Location:
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  4. Article ; Online: Invasive Non-Native Crustacean Symbionts: Diversity and Impact.

    Bojko, Jamie / Burgess, Amy L / Baker, Ambroise G / Orr, Caroline H

    Journal of invertebrate pathology

    2020  Volume 186, Page(s) 107482

    Abstract: Invasive non-native species (INNS) pose a risk as vectors of parasitic organisms (Invasive Parasites). Introducing invasive parasites can result in ecological disturbances, leading to biodiversity loss and native species illness/mortality, but ... ...

    Abstract Invasive non-native species (INNS) pose a risk as vectors of parasitic organisms (Invasive Parasites). Introducing invasive parasites can result in ecological disturbances, leading to biodiversity loss and native species illness/mortality, but occasionally can control INNS limiting their impact. Risks to human health and the economy are also associated with INNS and invasive parasites; however, we understand little about the diversity of symbiotic organisms co-invading alongside INNS. This lack of clarity is an important aspect of the 'One Health' prerogative, which aims to bridge the gap between human, wildlife, and ecosystem health. To explore symbiont diversity associated with the invasive crustacean group (including: crab, lobster, crayfish, shrimp, amphipod, isopod, copepod, barnacle, other) (n = 323) derived from 1054 aquatic invertebrates classed as INNS across databases, we compile literature (year range 1800-2017) from the native and invasive range to provide a cumulative symbiont profile for each species. Our search indicated that 31.2% of INN crustaceans were known to hold at least one symbiont, whereby the remaining 68.8% had no documented symbionts. The symbiont list mostly consisted of helminths (27% of the known diversity) and protists (23% of the known diversity), followed by bacteria (12%) and microsporidians (12%). Carcinus maenas, the globally invasive and extremely well-studied green crab, harboured the greatest number of symbionts (n = 72). Additional screening is imperative to become more informed on invasive symbiont threats. We reveal that few studies provide truly empirical data that connect biodiversity loss with invasive parasites and suggest that dedicated studies on available systems will help to provide vital case studies. Despite the lack of empirical data, co-invasive parasites of invasive invertebrates appear capable of lowering local biodiversity, especially by causing behavioural change and mortality in native species. Alternatively, several invasive parasites appear to protect ecosystems by controlling the impact and population size of their invasive host. We provide a protocol that could be followed to explore symbiont diversity in invasive groups as part of our case studies. The consequence of limited parasite screening of INNS, in addition to the impacts invasive parasites impart on local ecologies, are explored throughout the review. We conclude in strong support of the 'One Health' prerogative and further identify a need to better explore disease in invasion systems, many of which are accountable for economic, human health and ecological diversity impacts.
    MeSH term(s) Animals ; Biodiversity ; Crustacea/parasitology ; Host-Parasite Interactions ; Introduced Species ; Symbiosis
    Language English
    Publishing date 2020-10-20
    Publishing country United States
    Document type Journal Article ; Systematic Review
    ZDB-ID 390885-9
    ISSN 1096-0805 ; 0022-2011
    ISSN (online) 1096-0805
    ISSN 0022-2011
    DOI 10.1016/j.jip.2020.107482
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Histopathological survey for parasite groups in Gammarus varsoviensis (Amphipoda).

    Warren, Daniel A / Burgess, Amy L / Karemera, Felix / Bacela-Spychalska, Karolina / Stentiford, Grant D / Bojko, Jamie

    Diseases of aquatic organisms

    2022  Volume 149, Page(s) 47–51

    Abstract: Invasive non-native amphipods (Crustacea) are becoming a model system in which to explore the impact and diversity of invasive parasites-parasites that are carried along an invasion route with their hosts. Gammarus varsoviensis is a freshwater amphipod ... ...

    Abstract Invasive non-native amphipods (Crustacea) are becoming a model system in which to explore the impact and diversity of invasive parasites-parasites that are carried along an invasion route with their hosts. Gammarus varsoviensis is a freshwater amphipod species that has a recently explored invasion history. We provide a histopathological survey for a putatively invasive non-native population of this amphipod, identifying 8 symbiotic groups: Acanthocephala, Rotifera, Digenea, ciliated protozoa, Haplosporidia, Microsporidia, 'Candidatus Aquirickettsiella', and a putative nudivirus, at various prevalence. Our survey indicates that the parasites have no sex bias and that each has the potential to be carried in either sex along an invasion route. We discuss the pathology and prevalence of the above symbiotic groups and whether those that are parasitic may pose a risk if G. varsoviensis were to carry them to novel locations.
    MeSH term(s) Acanthocephala ; Amphipoda/parasitology ; Animals ; Host-Parasite Interactions ; Microsporidia ; Parasites
    Language English
    Publishing date 2022-05-05
    Publishing country Germany
    Document type Journal Article
    ISSN 0177-5103
    ISSN 0177-5103
    DOI 10.3354/dao03658
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Invasive Non-Native Crustacean Symbionts: Diversity and Impact

    Bojko, Jamie / Burgess, Amy L / Baker, Ambroise G / Orr, Caroline H

    Journal of invertebrate pathology. 2020 Oct. 02,

    2020  

    Abstract: Invasive non-native species (INNS) pose a risk as vectors of parasitic organisms (Invasive Parasites). Introducing invasive parasites can result in ecological disturbances, leading to biodiversity loss and native species illness/mortality, but ... ...

    Abstract Invasive non-native species (INNS) pose a risk as vectors of parasitic organisms (Invasive Parasites). Introducing invasive parasites can result in ecological disturbances, leading to biodiversity loss and native species illness/mortality, but occasionally can control INNS limiting their impact. Risks to human health and the economy are also associated with INNS and invasive parasites; however, we understand little about the diversity of symbiotic organisms co-invading alongside INNS. This lack of clarity is an important aspect of the ‘One Health’ prerogative, which aims to bridge the gap between human, wildlife, and ecosystem health.To explore symbiont diversity associated with the invasive crustacean group (including: crab, lobster, crayfish, shrimp, amphipod, isopod, copepod, barnacle, other) (n = 323) derived from 1054 aquatic invertebrates classed as INNS across databases, we compile literature (year range 1800–2017) from the native and invasive range to provide a cumulative symbiont profile for each species. Our search indicated that 31.2% of INN crustaceans were known to hold at least one symbiont, whereby the remaining 68.8% had no documented symbionts. The symbiont list mostly consisted of helminths (27% of the known diversity) and protists (23% of the known diversity), followed by bacteria (12%) and microsporidians (12%). Carcinus maenas, the globally invasive and extremely well-studied green crab, harboured the greatest number of symbionts (n = 72). Additional screening is imperative to become more informed on invasive symbiont threats.We reveal that few studies provide truly empirical data that connect biodiversity loss with invasive parasites and suggest that dedicated studies on available systems will help to provide vital case studies. Despite the lack of empirical data, co-invasive parasites of invasive invertebrates appear capable of lowering local biodiversity, especially by causing behavioural change and mortality in native species. Alternatively, several invasive parasites appear to protect ecosystems by controlling the impact and population size of their invasive host. We provide a protocol that could be followed to explore symbiont diversity in invasive groups as part of our case studies.The consequence of limited parasite screening of INNS, in addition to the impacts invasive parasites impart on local ecologies, are explored throughout the review. We conclude in strong support of the ‘One Health’ prerogative and further identify a need to better explore disease in invasion systems, many of which are accountable for economic, human health and ecological diversity impacts.
    Keywords Amphipoda ; Carcinus maenas ; Copepoda ; Microsporidia ; behavior change ; biodiversity ; case studies ; crabs ; crayfish ; databases ; ecological imbalance ; ecosystems ; helminths ; human health ; humans ; indigenous species ; introduced species ; invasive species ; lobsters ; mortality ; population size ; protists ; risk ; screening ; shrimp ; symbionts ; wildlife
    Language English
    Dates of publication 2020-1002
    Publishing place Elsevier Inc.
    Document type Article
    Note Pre-press version
    ZDB-ID 390885-9
    ISSN 1096-0805 ; 0022-2011
    ISSN (online) 1096-0805
    ISSN 0022-2011
    DOI 10.1016/j.jip.2020.107482
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Caregiver role strain of older workers.

    Beitman, Candace L / Johnson, Jennifer L / Clark, Adrienne L / Highsmith, Sharon R / Burgess, Amy L / Minor, Megan C / Stir, Aimee L

    Work (Reading, Mass.)

    2004  Volume 22, Issue 2, Page(s) 99–106

    Abstract: Unlabelled: The purpose of this study was to measure role strain in older adult workers who were also caregivers of frail elders according to Komarovsky's role strain theory, and to determine whether different patterns of role strain exist for male ... ...

    Abstract Unlabelled: The purpose of this study was to measure role strain in older adult workers who were also caregivers of frail elders according to Komarovsky's role strain theory, and to determine whether different patterns of role strain exist for male worker-caregivers than females.
    Method: Researchers developed the Job-Caregiver Role Strain Scale Survey, which was adapted from a survey that measured role strain in working parents and spouses. Surveys were distributed to 11 male and 34 female older workers who were also caregivers.
    Results: A factor analysis was completed, which isolated four factors of role strain. Researchers named the factors time management and arrangements, health and competing role demands, low rewards, and reactions to perceptions. Role strain in older adult worker-caregivers is complex and involves multiple variables. A discriminant function analysis predicted differences in the way older male and female worker-caregivers perceived role strain. Use of role strain theory can assist employers and occupational therapists in developing and maintaining work environments that support not only the older employee's work performance, but participation in the role of elder caregiver as well.
    MeSH term(s) Aged ; Burnout, Professional/psychology ; Caregivers/psychology ; Female ; Humans ; Male ; Middle Aged ; Occupational Diseases/psychology ; Role
    Language English
    Publishing date 2004
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1394194-x
    ISSN 1051-9815
    ISSN 1051-9815
    Database MEDical Literature Analysis and Retrieval System OnLINE

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