Evaluation of hemato-immunological parameters during the reproductive cycle of the scallop Nodipecten nodosus in association with a carotenoid-enriched diet

Schleder, Delano Dias; Kayser, Mirian; Sühnel, Simone; Ferreira, Jaime Fernando; Rupp, Guilherme Sabino; Barracco, Margherita Anna

doi:10.1016/j.aquaculture.2008.05.001

Cited by 21 publications

(10 citation statements)

References 35 publications

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“…However, some authors have had difficulties characterizing the hemocytes in bivalve molluscs (Bauchau 1981). Structural characteristics of HH and GH were similar to those reported for other species, such as the blue mussel (Carballal et al 1997) and the lion's paw scallop (Schleder et al 2008).…”

Section: Immunological Profile Of the Yellow Clamsupporting

confidence: 76%

Immunological Profile of the Yellow Clam Mesodesma mactroides (Mesodesmatidae) from the Southern Coast of Rio Grande do Sul, Brazil

et al. 2016

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The yellow clam Mesodesma mactroides (Mesodesmatidae) is a sandy beach bivalve that is distributed from Rio de Janeiro, Brazil, to the south of Buenos Aires province, Argentina. The yellow clam population has been declining in recent decades. To increase our understanding of this species, we evaluated the immunological status of yellow clams collected during different seasons from various areas in the state of Rio Grande do Sul, Brazil. We characterized the hemocytes, determined the differential hemocyte counts (DHCs), calculated the apoptotic index, and evaluated the incidence of parasites in yellow clams through histological analysis. We identified two types of hemocyte (hyaline and granular) that showed significant variation in DHCs among sampling areas during the summer and winter. The apoptotic index only exhibited significant variation during the summer. Histopathological analysis results did not significantly differ among sampling areas. This work demonstrated that environmental variation (e.g., temperature and salinity) associated with anthropogenic actions may be affecting the immune system of yellow clams. However, more studies are needed to determine the full influence of these factors on the yellow clam's immune system and thus contribute to future management and aquaculture of the species. Received May 10, 2015; accepted October 28, 2015.

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Section: Immunological Profile Of the Yellow Clamsupporting

confidence: 76%

Immunological Profile of the Yellow Clam Mesodesma mactroides (Mesodesmatidae) from the Southern Coast of Rio Grande do Sul, Brazil

et al. 2016

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“…In bivalves, however, the activity of this enzyme has not yet been clearly related to the immune system. Nonetheless, several authors have been using this enzyme activity to express shellfish health status (Thiagarajan et al , 2006; Aladaileh et al , 2007; Schleder et al , 2008). In this study, the level of PO activity was altered in both species during the algal blooms, but in contrasting manners.…”

Section: Discussionmentioning

confidence: 99%

Impact of harmful algal blooms (Dinophysis acuminata) on the immune system of oysters and mussels from Santa Catarina, Brazil

Simões

Vieira

Schramm³

et al. 2014

J. Mar. Biol. Ass.

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Blooms of the harmful alga Dinophysis acuminata, which produces okadaic acid (OA), are becoming recurrent in Santa Catarina coast, where most of the shellfish marine farms in Brazil are located. We evaluated the impact of D. acuminata blooms on various haemato-immunological parameters and on tissue integrity of cultivated oysters (Crassostrea gigas) and mussels (Perna perna). Animals were sampled during two natural algal blooms, one at Praia Alegre (PA: 2950 cells l 21 ) and the other at Praia de Zimbros (PZ: 4150 cells l 21 ). Control animals were sampled at the same sites, 30 days after the end of the bloom. The assayed parameters were: total (THC) and differential (DHC) haemocyte counts, percentage of apoptotic haemocytes (AH), phenoloxidase activity (PO), agglutinating titre (AT) and total protein concentration in haemolymph (PC). Histological analyses were carried out in oysters from PZ. The results showed that some immune parameters were modulated during the toxic blooms, but not in a consistent manner, especially in mussels that accumulated more OA (10×) than oysters. For example, mussel THC decreased significantly (54%) during the bloom at PA, whereas it augmented markedly (64%) at PZ. PO activity was significantly altered by the algal blooms in both bivalve species, while PC increased significantly (66%) only in mussels from PZ bloom. The other parameters (DHC, AH and AT) did not vary in both bivalve species. Histological analyses showed an intense haemocytic infiltration throughout the oyster digestive epithelium, particularly into the stomach lumen during the algal bloom.

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“…Studies on stressor impacts of gametogenesis and spawning and on the modulating effects on the immune functions are few and limited to molluscs (Schleder et al, 2008;Li et al, 2009;Matozzo and Marin, 2010) and crustaceans (Liu et al, 2007;Travers et al, 2008). Here, for the first time, the immune-surveillance levels in P. lividus in pre-and post-spawning phases were evaluated.…”

Section: Discussionmentioning

confidence: 99%

Gender differences in the immune system activities of sea urchin Paracentrotus lividus

Arizza

Vazzana

Schillaci

et al. 2013

Comparative Biochemistry and Physiology Part A: Molecular &

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In the immune system of vertebrates, gender-specific differences in individual immune competence are well known. In general, females possess more powerful immune response than males. In invertebrates, the situation is much less clear. For this purpose we have chosen to study the immune response of the two sexes of the echinoderm Paracentrotus lividus in pre-and post-spawning phases. The coelomic fluid from the echinoderms contains several coelomocyte types and molecules involved in innate immune defenses. In this article we report that the degree of immune responses in the P. lividus differs according to sex in both pre-and post-spawning phases. We found in all tests that females were more active than males. The results indicate that females possess a significant higher number of immunocytes consisting of phagocytes and uncolored spherulocytes. Since the immunological activity is mainly based on immunocytes, it was not surprising that females possessed the highest values of cytotoxicity and hemolysis activity and showed a greater ability to uptake neutral red and phagocyte yeasts cells, while the average number of ingested particles per active phagocyte was not significantly different. Furthermore, agglutinating activity was more evident in the coelomocyte lysate and coelomic fluid of females than in those of males. Finally we found that the acidic extract of female gonads possessed greater antimicrobial activity than that of male gonads. These results make it very likely that gender differences in the immune response are not restricted to vertebrates; rather, they are a general evolutionary phenomenon.

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Evaluation of hemato-immunological parameters during the reproductive cycle of the scallop Nodipecten nodosus in association with a carotenoid-enriched diet

Cited by 21 publications

References 35 publications

Immunological Profile of the Yellow Clam Mesodesma mactroides (Mesodesmatidae) from the Southern Coast of Rio Grande do Sul, Brazil

Immunological Profile of the Yellow Clam Mesodesma mactroides (Mesodesmatidae) from the Southern Coast of Rio Grande do Sul, Brazil

Impact of harmful algal blooms (Dinophysis acuminata) on the immune system of oysters and mussels from Santa Catarina, Brazil

Gender differences in the immune system activities of sea urchin Paracentrotus lividus

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