Differential effects of zinc exposure on male and female oysters (<i>Crassostrea angulata</i>) as revealed by label-free quantitative proteomics

Luo, Liang; Zhang, Qinghong; Kong, Xue; Huang, Heqing; Wang, You; Ke, Caihuan

doi:10.1002/etc.3797

Cited by 11 publications

(4 citation statements)

References 71 publications

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“…However, when under contamination, metal accumulation in oysters becomes more complicated. Luo et al () found that after Zn exposure, females enriched more Zn in gonads than males, which was related to the differential expression of Zn transportation, storage and multifunctional proteins. Triploid oysters accumulated Zn 30% less efficiently than diploid oysters (Marie et al, ).…”

Section: Discussionmentioning

confidence: 99%

Influence of gonadal development on metal accumulation in the Portuguese oyster,Crassostrea angulata,in subtropical areas

Shi

Zhou

et al. 2019

Aquac Res

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Metal enrichment makes oyster considered to be an appropriate food source for trace elements, but excessive accumulation can threaten human health. Reproduction is an important biotic factor that affects the metal accumulation in oysters. However, the influence of continuous gonad development model on metal accumulation in some subtropical oysters is still unclear. The present study addresses the concentrations of trace metals and glycogen associated with the gonadal and somatic tissues throughout the reproductive cycle of diploid and triploid Crassostrea angulata cultured in Fujian, China. Cu, Zn and Pb contents of gonads were negatively correlated (p < 0.05) with gonadosomatic index (GSI). The correlation between Cd content and GSI was not significant. There was a positive correlation (p < 0.05) between GSI and Mn content in female gonads while the correlation was negative (p < 0.05) in males, indicating Mn plays an important role in gametogenesis of females. The effects of gonadal maturity and gender on metal accumulation in somatic tissue were not significant (p > 0.05). The concentrations of all metals in sterile triploids were not significantly different from those of the somatic tissue of diploids. Gonadal glycogen content showed a negative correlation with the GSI. However, somatic glycogen content was not affected by gonadal development, indicating that the energy consumed during gametogenesis comes mainly from recently ingested food rather than from energy stored in somatic tissue. The effects of the gonadal development on the metal accumulation in oysters varied according to the metal and tissue type.

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Section: Discussionmentioning

confidence: 99%

Influence of gonadal development on metal accumulation in the Portuguese oyster,Crassostrea angulata,in subtropical areas

Shi

Zhou

et al. 2019

Aquac Res

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“…A recent study demonstrated the gonad of female oysters Crassostrea angulata has a higher ability to accumulate Zn and a higher tolerance to Zn exposure than that of the males, due to the variations of the regulations of Zn transporters and stress-response proteins between the two sexes. 68…”

Section: ■ Discussionmentioning

confidence: 99%

“…Such differences, on the other hand, suggested the difference of metabolic processes and physiological demands of Mn in male and female oysters during gonad development, and may imply the sex-specific differences in susceptibility of reproductive response to Mn stress in marine bivalves. A recent study demonstrated the gonad of female oysters Crassostrea angulata has a higher ability to accumulate Zn and a higher tolerance to Zn exposure than that of the males, due to the variations of the regulations of Zn transporters and stress-response proteins between the two sexes …”

Section: Discussionmentioning

confidence: 99%

NanoSIMS Imaging of Bioaccumulation and Subcellular Distribution of Manganese During Oyster Gametogenesis

Weng

Guagliardo

Jiang

et al. 2021

Environ. Sci. Technol.

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Many bivalve mollusks display remarkable sex differentiation of gonadal accumulation of manganese (Mn), but the underlying processes responsible for such differences have seldom been explored. In this study, the accumulation of Mn in male and female gonads during the reproductive cycle of oysters was first examined, and the distributions of Mn in oocytes and sperm cells at different developmental stages were imaged by the nanoscale secondary ion mass spectrometry (NanoSIMS) at the subcellular level. We found that the distribution and accumulation of Mn during oogenesis were closely associated with the formation and translocation of cortical granules. This is the first time that the enrichment of Mn was directly visualized in cortical granules, which was identified as the major storage site of Mn in oocytes of oysters. Yolk granules were revealed as another storage pool of Mn in oyster oocytes with lower accumulation. In contrast, Mn was mainly distributed in the nucleus of sperm cells with accumulation levels much lower than those in cortical and yolk granules of oocytes. These results demonstrated great differences of the subcellular localization and accumulation capacity of Mn between oocytes and sperm cells in oysters, implying the sex differentiation in susceptibility of reproductive response to Mn stress. Our study also highlights the importance of gender difference in future biomonitoring and ecotoxicological studies of Mn in marine bivalves.

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“…Although mussels have been used effectively as indicators of different environmental changes, little information is available on whether physiological responses differ between sexes in thickshelled mussels. In recent years, aquatic physiology has begun to pay attention to sex differences in the effects of endocrine disrupting pollutants, and studies have shown that different sexes of the same marine shellfish (Crassostrea angulata) have different responses to the toxicity of pollutants (Luo et al, 2017a;Luo et al, 2017b). For example, the male snails spent much more time growing under medium food conditions than females (Merot and Collin, 2012), indicating that sex differences existed in the physiological activity of mollusks.…”

Section: Introductionmentioning

confidence: 99%

Sex-specific digestive performance of mussels exposed to warming and starvation

et al. 2022

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As global climate change has dramatically impacted the ocean, severe temperature elevation and a decline in primary productivity has frequently occurred, which has affected the structure of coastal biomes. In this study, the sex-specific responses to temperature change and food availability in mussels were determined in terms of digestive performance. The thick-shelled mussels Mytilus coruscus (male and female) were exposed to different temperature and nutritional conditions for 30 days. The results showed that the digestive enzymes of mussels were significantly affected by temperature, food, sex, and their interactions. High temperature (30°C) and starvation significantly decreased amylase, lysozyme, and pepsase activities of female mussels, while trypsin and trehalase did not change significantly at the experimental end. The activity of amylase, trypsin, and trehalase was significantly reduced in males at high temperature (30°C) under starvation treatment, but high temperature (30°C) elevated pepsase. Unsurprisingly, starvation caused the reduction of lysozyme and pepsase under 25°C in males. Amylase, lipase, and trehalase were higher in female mussels compared with males, while the enzymatic activities of lysozyme, pepsase, and trypsin were higher in male mussels than females. Principal component analysis showed that different enzyme activity indexes were separated in male and female mussels, indicating that male and female mussels exhibited significantly different digestive abilities under temperature and food condition change. The study clarified sex-specific response difference in mussel digestive enzymes under warming and starvation and provided guidance for the development of mussel aquaculture (high temperature management and feeding strategy) under changing marine environments.

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Differential effects of zinc exposure on male and female oysters (Crassostrea angulata) as revealed by label-free quantitative proteomics

Cited by 11 publications

References 71 publications

Influence of gonadal development on metal accumulation in the Portuguese oyster,Crassostrea angulata,in subtropical areas

Influence of gonadal development on metal accumulation in the Portuguese oyster,Crassostrea angulata,in subtropical areas

NanoSIMS Imaging of Bioaccumulation and Subcellular Distribution of Manganese During Oyster Gametogenesis

Sex-specific digestive performance of mussels exposed to warming and starvation

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