Effects of salinity on the clam Chamelea gallina. Part I: alterations in immune responses

Matozzo, Valerio; Monari, Marta; Foschi, Jurgen; Serrazanetti, Gian Paolo; Cattani, Otello; Marin, María Gabriella

doi:10.1007/s00227-006-0543-6

Cited by 65 publications

(38 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Contrary to results from studies on the effect of rigorous salinity reductions on immune responses (Bussell et al, 2008;Matozzo et al, 2007;Reid et al, 2003), the consistent salinity gradient in the Danish waters did not cause reductions of the number in circulating haemocytes. However, the station with the highest determined PCB body burden, Frederiksvaerk (15&), was characterized by high numbers of circulating haemocytes (THC) accompanied by numerous occurrences of morphological abnormalities as well as lowered phagocytic activity.…”

Section: Discussioncontrasting

confidence: 99%

“…due to heavy rain fall) rather than on regions with salinity gradients. In laboratory studies conducted by Matozzo et al (2007) and Bussell et al (2008), a reduction of salinity from 34& to 28& (for 7 days; Mytilus edulis) and from 32& to 16& (for 2 days, Chamelea gallina), respectively, resulted in decreased phagocytic activity, whereas our results suggest that phagocytic activity of molluscan haemocytes adapted to low salinities is not governed by the surrounding environment. As mentioned above lowered phagocytic activity was determined in mussels with the highest PCB body burden.…”

Section: Discussioncontrasting

confidence: 59%

“…To date, immunotoxicity studies focussed on mussels from marine waters (30e37&) (Cajaraville et al, 1996;Hannam et al, 2009;Pipe et al, 1999) or acute salinity stress (Bussell et al, 2008;Matozzo et al, 2007;Reid et al, 2003). However, immune responses in mussels from brackish seas and waters with naturally occurring and consistent salinity gradients are likely to be affected by low salinities additional to contaminants.…”

Section: Discussionmentioning

confidence: 99%

“…The assessment of phagocytosis or rather the ability of haemocytes to phagocytose has been the centre of numerous studies evaluating immunotoxicity of contaminants Duchemin et al, 2008;Hannam et al, 2009;Pipe et al, 1999) as well as in experiments assessing salinity effects on the immune system (Bussell et al, 2008;Matozzo et al, 2007;Reid et al, 2003). The latter were emphasised on drastic salinity changes (i.e.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of various pollutant mixtures on immune responses of the blue mussel (Mytilus edulis) collected at a salinity gradient in Danish coastal waters

Höher

Köhler

Strand

et al. 2012

Marine Environmental Research

View full text Add to dashboard Cite

a b s t r a c tThe Baltic Sea is a semi-enclosed sea with a steady salinity gradient (3&e30&). Organisms have adapted to such low salinities, but are suspected to be more susceptible to stress. Within the frame of the integrated environmental monitoring BONUS þ project "BEAST" the applicability of immune responses of the blue mussel was investigated in Danish coastal waters. The sampling sites were characterised by a salinity range (11e19&) and different mixtures of contaminants (metals, PAHs and POPs), according to chemical analysis of mussel tissues. Variation partitioning (redundancy analysis) was applied to decompose salinity and contamination effects. The results indicated that cellular immune responses (total and differential haemocyte count, phagocytic activity and apoptosis) were mainly influenced by contaminants, whereas humoral factors (haemolytic activity) were mainly impacted by salinity. Hence, cellular immune functions may be suitable as biomarkers in monitoring programmes for the Baltic Sea and other geographic regions with salinity variances of the studied range.Crown

show abstract

Section: Discussioncontrasting

confidence: 99%

Section: Discussioncontrasting

confidence: 59%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of various pollutant mixtures on immune responses of the blue mussel (Mytilus edulis) collected at a salinity gradient in Danish coastal waters

Höher

Köhler

Strand

et al. 2012

Marine Environmental Research

View full text Add to dashboard Cite

show abstract

“…In R. philippinarum, low water temperature and salinity induced a decrease in the concentration of hemocytes, lysozyme activity, and phagocytosis capacity (Reid et al, 2003;Paillard et al, 2004b). Several other laboratory experiments underscored the effects of temperature and salinity on hemocyte parameters in various bivalve species (Chu and La Peyre, 1993b;Fisher et al, 1996;Chu, 1998;Allamet al, 2002;Liu et al, 2004;Matozzo et al, 2007;Monari et al, 2007). Only few studies, however, have reported the impact of temperature and salinity on hemocyte parameters in the field (Fisher et al, 1996;Carballal et al, 1998;Matozzo et al, 2003;Soudant et al, 2004).…”

Section: Hemocytes and Environmental Parametersmentioning

confidence: 99%

Hemocytes of the carpet shell clam (Ruditapes decussatus) and the Manila clam (Ruditapes philippinarum): Current knowledge and future prospects

et al. 2009

View full text Add to dashboard Cite

: Hemocytes are the immune effectors in clams, directing cellular but also humoral defences. In the Manila clam (Ruditapes philippinarum) and the carpet shell clam (Ruditapes decussatus), two phenotypically similar venerid species, fishery and aquaculture importance motivated scientific studies to improve knowledge about the participation of hemocytes in immune response. Currently, gaps still persist concerning the classification of hemocyte sub-populations as well as their non-immune activities. This review summarizes current knowledge about hemocytes of the Manila clam and the carpet shell clam, suggests some probable misinterpretations arising from extrapolations from other bivalves and vertebrates, and suggests future research prospects. The susceptibility of hemocytes to environmental modifications as well as biological and chemical toxicants is also re-evaluated. Hemocytes of bivalves are not limited in function to immunity and should be considered in a wider scheme including the environment and whole-animal physiology.

show abstract

A first insight into haemocytes of Pinctada imbricata radiata: A morpho‐functional characterization

Pagano

Fabrello

Multisanti

et al. 2022

Microscopy Res & Technique

Self Cite

View full text Add to dashboard Cite

The pearl oyster Pinctada imbricata radiata (Leach, 1814), from the Pacific Ocean, was one of the first species to reach via Suez the Mediterranean, colonizing the eastern basin and recently spreading to the western. The species showed to be able to adapt to a wide range of climatic, hydrological, and ecological conditions. Since 2000 it reached the Strait of Messina, where is now infesting the transitional waters of the oriented natural reserve “Laguna di Capo Peloro.” Due to such resistance and adaptation ability, various assays were performed. Haemocyte morpho‐functional aspects were evaluated in haemolymph samples fixed with 1% and 2% glutaraldehyde for optical and electron microscopy (TEM). The following assays were carried out: cell characterization using several dyes, detection of intra‐ and extracellular lipids, the capability of phagocytosis using the yeast Saccharomyces cerevisiae and to produce superoxide anion (O2−). Detection of several enzymes, such as acid and alkaline phosphatase, arylsulfatase, chloro‐acetylesterase and β‐glucuronidase was also assessed. Cell count was demonstrated to be abundant with a mean of 8.263 × 106 mm2 ± 0.935 × 106 (SD). Two main cell populations were noticed: granulocytes and hyalocytes, both competent for phagocytosis, to produce O2−, and characterized by lipids. Based on the granule analysis, enzymatic activity was also demonstrated. The observations under TEM confirmed all the results obtained. This study supports the hypothesis that P. imbricata radiata can be usefully employed as a model organism in environmental biomonitoring. Moreover, since the species represent potential threats to native species and ecosystems, further insights into its biological adaptations in invaded ecosystems are recommended.

show abstract

Effects of salinity on the clam Chamelea gallina. Part I: alterations in immune responses

Cited by 65 publications

References 32 publications

Effects of various pollutant mixtures on immune responses of the blue mussel (Mytilus edulis) collected at a salinity gradient in Danish coastal waters

Effects of various pollutant mixtures on immune responses of the blue mussel (Mytilus edulis) collected at a salinity gradient in Danish coastal waters

Hemocytes of the carpet shell clam (Ruditapes decussatus) and the Manila clam (Ruditapes philippinarum): Current knowledge and future prospects

A first insight into haemocytes of Pinctada imbricata radiata: A morpho‐functional characterization

Contact Info

Product

Resources

About