Functional features of hemocyte subpopulations of the invasive mollusk species Dreissena polymorpha

Evariste, Lauris; Auffret, Michel; Audonnet, Sandra; Geffard, Alain; David, Elise; Brousseau, Pauline; Fournier, Michel; Betoulle, Stéphane

doi:10.1016/j.fsi.2016.06.054

Cited by 40 publications

(31 citation statements)

References 87 publications

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“…The hemocyte phagocytosis constitutes the key activity, leading to the recognition, engulfment and demolition of biotic and abiotic foreign particles [86]. The innate immune properties of the hemocytes rely on their ancestral role in food digestion and nutrient transport [87]. Indeed, the interplay between phagocytosis and nutrition in invertebrates has been ascribed to the primary function of the hemocytes phagosome as the digestive organelle, where microorganisms are degraded as nutrients source, then evolving into a more specialized compartment to kill pathogens (Figure 1) [88].…”

Section: Defense Mechanisms In Marine Bivalve Mollusksmentioning

confidence: 99%

Microbial Diseases of Bivalve Mollusks: Infections, Immunology and Antimicrobial Defense

et al. 2017

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A variety of bivalve mollusks (phylum Mollusca, class Bivalvia) constitute a prominent commodity in fisheries and aquacultures, but are also crucial in order to preserve our ecosystem’s complexity and function. Bivalve mollusks, such as clams, mussels, oysters and scallops, are relevant bred species, and their global farming maintains a high incremental annual growth rate, representing a considerable proportion of the overall fishery activities. Bivalve mollusks are filter feeders; therefore by filtering a great quantity of water, they may bioaccumulate in their tissues a high number of microorganisms that can be considered infectious for humans and higher vertebrates. Moreover, since some pathogens are also able to infect bivalve mollusks, they are a threat for the entire mollusk farming industry. In consideration of the leading role in aquaculture and the growing financial importance of bivalve farming, much interest has been recently devoted to investigate the pathogenesis of infectious diseases of these mollusks in order to be prepared for public health emergencies and to avoid dreadful income losses. Several bacterial and viral pathogens will be described herein. Despite the minor complexity of the organization of the immune system of bivalves, compared to mammalian immune systems, a precise description of the different mechanisms that induce its activation and functioning is still missing. In the present review, a substantial consideration will be devoted in outlining the immune responses of bivalves and their repertoire of immune cells. Finally, we will focus on the description of antimicrobial peptides that have been identified and characterized in bivalve mollusks. Their structural and antimicrobial features are also of great interest for the biotechnology sector as antimicrobial templates to combat the increasing antibiotic-resistance of different pathogenic bacteria that plague the human population all over the world.

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Section: Defense Mechanisms In Marine Bivalve Mollusksmentioning

confidence: 99%

Microbial Diseases of Bivalve Mollusks: Infections, Immunology and Antimicrobial Defense

et al. 2017

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“…The near-bottom water temperature was still another environmental variable that could be associated with fluctuations in the two species' abundances and biomass. Generally, D. polymorpha has a wider temperature tolerance than D. rostriformis bugensis, with the upper limit being reported as 33 and 31 • C, respectively, the lower limit being set at 0 • C for both species (McMahon, 1996;Karatayev et al, 1998Karatayev et al, , 2014a. The temperature range recorded in the Lagoon during the period of study (1.5-22.5 • C) would hardly be limiting for either species.…”

Section: Discussion Dreissenid Abundance and Biomassmentioning

confidence: 94%

Two Non-indigenous Dreissenids (Dreissena polymorpha and D. rostriformis bugensis) in a Southern Baltic Coastal Lagoon: Variability in Populations of the “Old” and a “New” Immigrant

et al. 2019

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Dreissena polymorpha and D. rostriformis bugensis are freshwater Ponto-Caspian bivalve species, at present widely distributed in Europe and North America. In the Szczecin Lagoon (a southern Baltic coastal lagoon), the quagga was recorded for the first time in 2014 and found to co-occur with the zebra mussel, a long-time resident of the Lagoon. As the two species are suspected of being competitors where they co-occur, their population dynamics was followed at a site the new immigrant was discovered (station ZS6, northern part of the Lagoon) by collecting monthly samples in 2015-2017. The abundance and biomass of the two congeners showed wide fluctuations, significant differences being recorded between months within a year and between years. The abundance and biomass proportions between the two congeners changed from an initial domination of the newcomer quagga until mid-2015 to a persistent domination of the zebra mussel throughout the remainder of the study period. Both the abundance and biomass of the two dreissenids showed a number of significant associations with environmental variables, notably with salinity, chlorophyll a content, and temperature. The co-occurrence of the two dreissenids in the Lagoon is discussed in the context of their invasion stage; it is concluded that while the quagga seems to have achieved the "outbreak" stage, the zebra mussel, an "accommodated" invader present prior to the quagga immigration, reverted to that stage.

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“…Research in freshwater bivalves does not necessarily support this claim (Evariste et al. ). While this study cannot directly link cell types with cell functions, it provides a preliminary foundation of evidence for bivalves to be considered in future studies and support for further investigation into the association of function and morphology in bivalve hemocytes due to their demonstrated role in immune defense.…”

Section: Discussionmentioning

confidence: 99%

Hematological and Biochemical Assessment of Two Species of Freshwater Mussels, Quadrula quadrula and Amblema plicata, Following Translocation

et al. 2018

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Nondestructive, sublethal, and sensitive health monitoring tools are needed to assess the health of freshwater mussels (family Unionidae). Recent developments to standardize hemocyte characterization have assisted in the hematologic assessment of wild and captive freshwater mussels. In this study, preliminary baseline hematological reference ranges were established for wild mapleleaf mussels Quadrula quadrula (n = 14) and threeridge mussels Amblema plicata (n = 20) collected from the Muskingum River in Devola, Ohio. Mussels were collected from the wild, and hemolymph was sampled from each mussel in the field upon capture (baseline sample). They were then transported live to a propagation facility. Subsequent hemolymph samples were collected at 2 and 4 weeks and quarterly thereafter for 11 months following translocation. Hemocyte counts, hemocyte morphology, and hemolymph chemistry (Na , Cl , Mg , P , K , Ca , glucose, alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase]) were measured from each sample on each sampling occasion. Hemocyte counts were consistently greater in Q. quadrula than in A. plicata following transfer to captivity. Baseline hemocyte morphology and hemolymph chemistry varied between species. This study provides a foundation of reference ranges for hemocyte characterization for Q. quadrula, and A. plicata and a preliminary understanding of how hemocyte character might be expected to change when wild mussels are translocated into captivity, and thus be a useful technique for monitoring the health of freshwater mussels.

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Functional features of hemocyte subpopulations of the invasive mollusk species Dreissena polymorpha

Cited by 40 publications

References 87 publications

Microbial Diseases of Bivalve Mollusks: Infections, Immunology and Antimicrobial Defense

Microbial Diseases of Bivalve Mollusks: Infections, Immunology and Antimicrobial Defense

Two Non-indigenous Dreissenids (Dreissena polymorpha and D. rostriformis bugensis) in a Southern Baltic Coastal Lagoon: Variability in Populations of the “Old” and a “New” Immigrant

Hematological and Biochemical Assessment of Two Species of Freshwater Mussels, Quadrula quadrula and Amblema plicata, Following Translocation

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