Histopathology of the digestive gland of the bivalve mollusk Crenomytilus grayanus (Dunker, 1853) from southwestern Peter the Great Bay, Sea of Japan

Usheva, L. N.; Vaschenko, Marina A.; Durkina, V. B.

doi:10.1134/s1063074006030047

Cited by 45 publications

(47 citation statements)

References 27 publications

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“…In our study, regressive changes at digestive tissue level were frequently reported. The digestive gland tissue showed the most severe damage in the mussels from LD and PN over the samplings; the most represented lesions were lumen dilation, and tubule necrosis correlated with inflammatory lesions, as also previously reported in the bivalves from heavily stressful and polluted sites ( Syasina et al, 1997 ; Usheva et al, 2006 ).…”

Section: Discussionsupporting

confidence: 83%

Assessment of the Health Status of Mussels Mytilus galloprovincialis Along the Campania Coastal Areas: A Multidisciplinary Approach

et al. 2018

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The bivalve Mytilus galloprovincialis has a broad geographic distribution, represent an important species for the ecology of coastal waters, also constituting a major aquaculture species. In the present work, molecular and tissue biomarkers were examined in mussel populations (M. galloprovincialis) located in four different areas of the coastal water of the Campania Region. During an annual life cycle, we analyzed the expression patterns of several genes commonly used to estimate cellular stress response and damage, namely p53, p63, HSP70, MT-10, and MT-20, related tissue lesions (pathogens, inflammations, digestive tubules damage), oxidative stress indicators (H2O2, SOD specific activity) and associated environmental data. The computed Principal Component Analysis showed that the areas were discernible based on the environmental data and biomarker results. About animal health status, mussels from Gulf of Pozzuoli and Naples’s harbor did show a thinnest epithelial cell of digestive tubules compared to mussels sampled from other sampling sites; moreover, high prevalence of cases of intersex in three of the examinated areas were observed. The presence of a potential zoonotic pathogen (Nocardia crassostreae) was identified, appearing as an important possible emerging disease. We also reported the OIE notifiable protozoa Marteilia refringens in three areas out of four. The likely impact of both observed pathogens on the mussel health and shellfish aquaculture needs to be urgently addressed. Results are discussed considering animal histopathological health parameters and biological effects.

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Section: Discussionsupporting

confidence: 83%

Assessment of the Health Status of Mussels Mytilus galloprovincialis Along the Campania Coastal Areas: A Multidisciplinary Approach

et al. 2018

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“…Also found were oocytes in which the nuclear chromatin was condensed in a basophilic mass, which indicates imminent pyknosis (Usheva et al. ). Frequently, pyknosis is induced by pollutants in various mollusc tissues, as reported in the snail, Bellamya dissimilis , exposed to pesticides (Jonnalagadda and Rao ) and in the bivalve, Lamellidens marginalis , exposed to arsenic (Chakraborty and Ray ).…”

Section: Discussionmentioning

confidence: 99%

Histopathological Alterations in the Gonad of Megapitaria squalida (Mollusca: Bivalvia) Inhabiting a Heavy Metals Polluted Environment

et al. 2018

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The gonadal health status of the chocolate clam Megapitaria squalida collected from the Santa Rosalía mining port and San Lucas beach (reference site), Gulf of California, Mexico, was assessed through histological analysis of the reproductive tissue, from which the histopathological alteration index (HAI) was determined. In addition, copper and iron accumulation in tissue was revealed using histochemical techniques. Our results showed a large presence of copper (30%) and iron (45%) only in the gonad tissue of clams from Santa Rosalía, in which histopathological alterations observed were inflammatory responses, degenerative-progressive processes, cell death, and response to infectious agents. The HAI was significantly higher in Santa Rosalía specimens (mean ± SE, 72.18 ± 6.12) than in San Lucas clams (4.60 ± 1.07). At San Lucas beach, a higher prevalence of histopathological alterations occurred in clams in the spent stage (43.2%) and in autumn (18.4%) and winter (17.8%) in concordance with the normal reproductive rest period, whereas at Santa Rosalía a higher prevalence occurred in clams at the ripe stage (76.9%) and in spring (83.7%). In conclusion, our results showed the deteriorated health condition of gonads in M. squalida from the Santa Rosalía mining port, which suggests there is a relationship with chronic exposure to local high levels of heavy metals. The high prevalence and intensity of histopathological alterations in the gonad suggest a strong adverse effect on gametogenesis, gamete quality, and, ultimately, in the reproductive potential of M. squalida at this site.

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“…The digestive glands of molluscs have been known as target organs for contaminant effects because this organ plays a major role in contaminant uptake, intracellular food digestion and metabolism of inorganic and organic chemicals in the organisms (Rainbow and Phillips 1993;Marigomez et al 2002;Pucheva et al 2006). The present results are comparable with the findings of Otludil et al (2004) who reported that the histopathological examinations after the exposure of ramshorn snail (Planorbarius corneus) to two sublethal concentrations of endosulfan (0.4 and 0.8 mg l − 1 ) for periods of 10, 20 and 30 days revealed many changes such as degeneration of the cells of the digestive glands, necrosis and atrophy in the digestive tubules and desquamation of the epithelial cells.…”

Section: Histopathological Changes In Digestive Glandmentioning

confidence: 99%

Histopathologic biomarker response of clam, Ruditapes decussates, to organophosphorous pesticides reldan and roundup: A laboratory study

et al. 2009

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Clam Ruditapes decussates was used as a biomonitoring organism to measure the potential impact of pollution. The present study investigated histological alterations of R. decussates following a long-term exposure to a sublethal-level of pesticides Reldan and Roundup. The clams were taken to the laboratory and kept for days to adjust to a continuous closed flow system with quality water control. After the adjustment period, clams were exposed either to sublethal concentrations of Reldan (0.6 µl L − 1 ) or Roundup (1.1 µl L − 1 ) for 90 days. Clams were taken to determine the histological damage at 30, 60 and 90 days. Most histological alterations were highly localized in the glandular cells of the gills, mantle tissues and digestive gland; secretions of glandular cells were found to be increased by increasing the time of exposure. Histopathological results showed the activation of resistance mechanisms that allowed the clams to survive under sublethal stresses. Thus, histological changes on localized tissues were sensitive and they have positive correlation to the time of exposure to the pesticides, suggesting that they may serve as biomarkers for Reldan and Roundup exposures.

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Histopathology of the digestive gland of the bivalve mollusk Crenomytilus grayanus (Dunker, 1853) from southwestern Peter the Great Bay, Sea of Japan

Cited by 45 publications

References 27 publications

Assessment of the Health Status of Mussels Mytilus galloprovincialis Along the Campania Coastal Areas: A Multidisciplinary Approach

Assessment of the Health Status of Mussels Mytilus galloprovincialis Along the Campania Coastal Areas: A Multidisciplinary Approach

Histopathological Alterations in the Gonad of Megapitaria squalida (Mollusca: Bivalvia) Inhabiting a Heavy Metals Polluted Environment

Histopathologic biomarker response of clam, Ruditapes decussates, to organophosphorous pesticides reldan and roundup: A laboratory study

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