Effect of sulfide, osmotic, and thermal stresses on taurine transporter mRNA levels in the gills of the hydrothermal vent-specific mussel Bathymodiolus septemdierum

Nakamura-Kusakabe, Ikumi; Nagasaki, Toshihiro; Kinjo, Azusa; Sassa, Mieko; Koito, Tomoko; Okamura, Kei; Yamagami, Shosei; Yamanaka, Toshiro; Tsuchida, Shinji; Inoue, Koji

doi:10.1016/j.cbpa.2015.09.013

Cited by 12 publications

(4 citation statements)

References 31 publications

(14 reference statements)

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“…It has been found that expression of the TAUT gene in the gill of the Pacific oyster Crassostrea gigas is significantly reduced under low salinity (5‰ and 10‰ SW) conditions (Meng et al, 2013), whereas, TAUT mRNA expression in the gill of the vent‐specific mussel has been observed to be slightly increased in each diluted SW group (Nakamura‐Kusakabe et al, 2016). Furthermore, Lin et al (2016) reported that the expression of both TAUT mRNA and protein in the gill, but not the mantle, of the hard clam was significantly higher when clams were acclimated for 30 days to 10‰ SW than when acclimated to 20‰ SW (Lin et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Time‐course changes in the regulation of ions and amino acids in the hard clam Meretrix lusoria upon lower salinity challenge

2021

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In this study, we examined ion and amino acid regulation in the gill and mantle of the hard clam Meretrix lusoria. We found that the osmolality and Na + and Clconcentrations of hard clam hemolymph were significantly reduced after transferring clams from the salinity of their natural habitat [20‰ saltwater (SW)] to a lower salinity environment (10‰ SW). Specific activities of Na + , K + -ATPase (NKA), which provides the driving force for the secondary ion transport associated with cell osmoregulation in gills and mantles, were unaffected during the acclimation to lower salinity. In contrast, there was a significant decline in the contents of free amino acids (FAAs) in the gills and mantles of hard clams during lower salinity acclimation.

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Section: Introductionmentioning

confidence: 99%

Time‐course changes in the regulation of ions and amino acids in the hard clam Meretrix lusoria upon lower salinity challenge

2021

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“…Many studies have examined the associations between mussels and their symbionts. These include investigations of cellular homeostasis (Bebianno et al., ; Berger & Young, ; Company et al., ; Martins et al., ; Nakamura‐Kusakabe et al., ), immune response (Bettencourt et al., , 2010a; Martins et al., ) and metabolites and substrate exchange (Fialamedioni et al., ; Nelson, Hagen, & Edwards, ; Streams, Fisher, & FialaMedioni, ). Previous studies have shown that host mussels can generally transfer and even enrich substances such as methane, oxygen, and hydrogen sulphide from sea water in the gills (Kadar, Davis, & Lobo‐da‐Cunha, ; Ponnudurai et al., ), while symbionts provide nutrition such as amino acids, vitamins and cofactors to the host.…”

Section: Introductionmentioning

confidence: 99%

Insights into deep‐sea adaptations and host–symbiont interactions: A comparative transcriptome study on Bathymodiolus mussels and their coastal relatives

Zheng

Wang

et al. 2017

Molecular Ecology

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Mussels (Bivalve: Mytilidae) have adapted to various habitats, from fresh water to the deep sea. To understand their adaptive characteristics in different habitats, particularly in the bathymodiolin mussels in deep-sea chemosynthetic ecosystems, we conducted a comparative transcriptomic analysis between deep-sea bathymodiolin mussels and their shallow-water relatives. A number of gene families related to stress responses were shared across all mussels, without specific or significantly expanded families in deep-sea species, indicating that all mussels are capable of adapting to diverse harsh environments, but that different members of the same gene family may be preferentially utilized by different species. One of the most extraordinary trait of bathymodiolin mussels is their endosymbiosis. Lineage-specific and positively selected TLRs and highly expressed C1QDC proteins were identified in the gills of the bathymodiolins, suggesting their possible functions in symbiont recognition. However, pattern recognition receptors of the bathymodiolins were globally reduced, facilitating the invasion and maintenance of the symbionts obtained by either endocytosis or phagocytosis. Additionally, various transporters were positively selected or more highly expressed in the deep-sea mussels, indicating a means by which necessary materials could be provided for the symbionts. Key genes supporting lysosomal activity were also positively selected or more highly expressed in the deep-sea mussels, suggesting that nutrition fixed by the symbionts can be absorbed in a "farming" way wherein the symbionts are digested by lysosomes. Regulation of key physiological processes including lysosome activity, apoptosis and immune reactions is needed to maintain a stable host-symbiont relationship, but the mechanisms are still unclear.

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“…Interestingly, seawater ejected from hydrothermal vents at Myojin Knoll and Suiyo Seamount is slightly hypoosmotic relative to surrounding seawater (Fig. 4, Table 1, and Nakamura-Kusakabe et al 2016), and this may influence TAUT mRNA expression (Nakamura-Kusakabe et al 2016).…”

Section: Hypotaurine Of Deep-sea Musselsmentioning

confidence: 98%

Mussel biology: from the byssus to ecology and physiology, including microplastic ingestion and deep-sea adaptations

2021

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Mussels are a group of bivalves that includes the dominant species of shallow-sea, freshwater, and deep-sea chemosynthetic ecosystems. Mussels cling to various solid underwater surfaces using a proteinaceous thread, called the byssus, which is central to their ecology, physiology, and evolution. Mussels cluster using their byssi to form “mussel beds,” thereby increasing their biomass per unit of habitat area, and also creating habitats for other organisms. Clustered mussels actively filter feed to obtain nutrients, but also ingest pollutants and suspended particles; thus, mussels are good subjects for pollution analyses, especially for microplastic pollution. The byssus also facilitates invasiveness, allowing mussels to hitchhike on ships, and to utilize other man-made structures, including quay walls and power plant inlets, which are less attractive to native species. Physiologically, mussels have adapted to environmental stressors associated with a sessile lifestyle. Osmotic adaptation is especially important for life in intertidal zones, and taurine is a major component of that adaptation. Taurine accumulation systems have also been modified to adapt to sulfide-rich environments near deep-sea hydrothermal vents. The byssus may have also enabled access to vent environments, allowing mussels to attach to “evolutionary stepping stones” and also to vent chimneys.

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Effect of sulfide, osmotic, and thermal stresses on taurine transporter mRNA levels in the gills of the hydrothermal vent-specific mussel Bathymodiolus septemdierum

Cited by 12 publications

References 31 publications

Time‐course changes in the regulation of ions and amino acids in the hard clam Meretrix lusoria upon lower salinity challenge

Time‐course changes in the regulation of ions and amino acids in the hard clam Meretrix lusoria upon lower salinity challenge

Insights into deep‐sea adaptations and host–symbiont interactions: A comparative transcriptome study on Bathymodiolus mussels and their coastal relatives

Mussel biology: from the byssus to ecology and physiology, including microplastic ingestion and deep-sea adaptations

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