Swimming in Scallops

Guderley, Helga; Tremblay, Isabelle

doi:10.1016/b978-0-444-62710-0.00012-2

Cited by 12 publications

(6 citation statements)

References 115 publications

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“…Adductor muscles are attached to the shell providing the animal with the capability to close their valves, isolating the internal tissues from the environment, although the effectiveness varies across species. In the case of scallops, the rapid contraction of the adductor muscle forces the valves to quickly squeeze the intervalvar fluid, which creates a water jet that propels the scallop, providing them with swimming capabilities (Guderley and Tremblay 2016). The different shell shapes across bivalve species allowed this class of molluscs to colonize a variety of habitats (Stanley 1970).…”

Section: Introductionmentioning

confidence: 99%

Regulating Services of Bivalve Molluscs in the Context of the Carbon Cycle and Implications for Ecosystem Valuation

Filgueira

Strohmeier

Strand

2018

Goods and Services of Marine Bivalves

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The role of marine bivalves in the CO 2 cycle has been commonly evaluated as the balance between respiration, shell calcium carbonate sequestration, and CO 2 release during biogenic calcification; however, this individual-based approach neglects important ecosystem interactions that occur at the population level, e.g. the interaction with phytoplankton populations and benthic-pelagic coupling, which in turn can significantly alter the CO 2 cycle. Therefore, an ecosystem approach that accounts for the trophic interactions of bivalves, including the role of dissolved and particulate organic and inorganic carbon cycling, is needed to provide a rigorous assessment of the role of bivalves as a potential sink of CO 2. Conversely, the discussion about this potential role needs to be framed in the context of non-harvested vs. harvested populations, given that harvesting represents a net extraction of matter from the ocean. Accordingly, this chapter describes the main processes that affect CO 2 cycling and discuss the role of non-harvested and harvested bivalves in the context of sequestering carbon. A budget for deep-fjord waters is presented as a case study.

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Section: Introductionmentioning

confidence: 99%

Regulating Services of Bivalve Molluscs in the Context of the Carbon Cycle and Implications for Ecosystem Valuation

Filgueira

Strohmeier

Strand

2018

Goods and Services of Marine Bivalves

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“…Recent work on fast and slow skeletal muscles reveals the complex regulatory mechanisms in key components of muscle structure, including the transcriptional and posttranscriptional events [ 3 , 4 ]. In contrast, invertebrate thick filaments are very different from vertebrate striated thick filaments and show great variation within invertebrates [ 26 , 27 ]. Muscle-specific genes and proteins in invertebrates (e.g.…”

Section: Introductionmentioning

confidence: 99%

Differences between fast and slow muscles in scallops revealed through proteomics and transcriptomics

Sun

Liu

et al. 2018

BMC Genomics

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BackgroundScallops possess striated and catch adductor muscles, which have different structure and contractile properties. The striated muscle contracts very quickly for swimming, whereas the smooth catch muscle can keep the shells closed for long periods with little expenditure of energy. In this study, we performed proteomic and transcriptomic analyses of differences between the striated (fast) and catch (slow) adductor muscles in Yesso scallop Patinopecten yessoensis.ResultsTranscriptomic analysis reveals 1316 upregulated and 8239 downregulated genes in slow compared to fast adductor muscle. For the same comparison, iTRAQ-based proteomics reveals 474 differentially expressed proteins (DEPs), 198 up- and 276 downregulated. These DEPs mainly comprise muscle-specific proteins of the sarcoplasmic reticulum, extracellular matrix, and metabolic pathways. A group of conventional muscle proteins—myosin heavy chain, myosin regulatory light chain, myosin essential light chain, and troponin—are enriched in fast muscle. In contrast, paramyosin, twitchin, and catchin are preferentially expressed in slow muscle. The association analysis of proteomic and transcriptomic data provides the evidences of regulatory events at the transcriptional and posttranscriptional levels in fast and slow muscles. Among 1236 differentially expressed unigenes, 22.7% show a similar regulation of mRNA levels and protein abundances. In contrast, more unigenes (53.2%) exhibit striking differences between gene expression and protein abundances in the two muscles, which indicates the existence of fiber-type specific, posttranscriptional regulatory events in most of myofibrillar proteins, such as myosin heavy chain, titin, troponin, and twitchin.ConclusionsThis first, global view of protein and mRNA expression levels in scallop fast and slow muscles reveal that regulatory mechanisms at the transcriptional and posttranscriptional levels are essential in the maintenance of muscle structure and function. The existence of fiber-type specific, posttranscriptional regulatory mechanisms in myofibrillar proteins will greatly improve our understanding of the molecular basis of muscle contraction and its regulation in non-model invertebrates.Electronic supplementary materialThe online version of this article (10.1186/s12864-018-4770-2) contains supplementary material, which is available to authorized users.

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“…In scallops, gonad growth is frequently but not always dependent on energy reserve mobilisation from the adductor muscle, in line with the reproductive strategy of the species, as well as on particular environmental conditions 8,9 . Gonad development can even impair tissue functionality, as shown by reduced muscular energy-related activity [10][11][12] , as well as shifts in metabolic enzyme kinetics [13][14][15] .…”

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confidence: 99%

Metabolic responses of adult lion’s paw scallops Nodipecten subnodosus exposed to acute hyperthermia in relation to seasonal reproductive effort

Salgado-García

Kraffe

Maytorena-Verdugo

et al. 2020

Sci Rep

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and balance, the response observed in adult scallops suggested that N. subnodosus presents a high capability to respond to acute temperature stress in the range of its thermal window tolerance. Our study examined the capability of scallops to respond to an acute challenge of 24 h, these results lead to additional unknowns regarding the metabolic and energetic capability of the response and homeostasis under repeated exposure to acute hyperthermia scenarios and regarding the increasing variability in seawater temperature as another possible large event in future global warming scenarios.

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Swimming in Scallops

Cited by 12 publications

References 115 publications

Regulating Services of Bivalve Molluscs in the Context of the Carbon Cycle and Implications for Ecosystem Valuation

Regulating Services of Bivalve Molluscs in the Context of the Carbon Cycle and Implications for Ecosystem Valuation

Differences between fast and slow muscles in scallops revealed through proteomics and transcriptomics

Metabolic responses of adult lion’s paw scallops Nodipecten subnodosus exposed to acute hyperthermia in relation to seasonal reproductive effort

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