Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects

Abstract Understanding the maternal transfer of contaminants and their potential effects has great implications for a valid ecological assessment of environmental pollution. However, relevant studies on marine bivalves are very limited. Here, we examined the maternal transfer of trace metals in popu...

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Auteurs principaux:	Nanyan Weng, Wen-Xiong Wang
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2017
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/c4495e65a823430d9348fd4b88fe9784
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spelling	oai:doaj.org-article:c4495e65a823430d9348fd4b88fe97842021-12-02T11:41:21ZDynamics of maternally transferred trace elements in oyster larvae and latent growth effects10.1038/s41598-017-03753-22045-2322https://doaj.org/article/c4495e65a823430d9348fd4b88fe97842017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03753-2https://doaj.org/toc/2045-2322Abstract Understanding the maternal transfer of contaminants and their potential effects has great implications for a valid ecological assessment of environmental pollution. However, relevant studies on marine bivalves are very limited. Here, we examined the maternal transfer of trace metals in populations of oyster Crassostrea hongkongensis with contrasting metal exposure histories. Elevated accumulation of trace metals was observed in eggs and larvae from contaminated sites, suggesting maternal transfer of multi-metals in natural oyster populations. The dynamics of maternally transferred metals was for the first time documented in this study. We demonstrated that excessively transferred metals in contaminated larvae were rapidly eliminated during the early developmental stage, and the efflux rate of metals in larvae was greatly dependent on environmental contamination level. These results provided the first field evidence of modified metal biokinetics in offsprings due to exposure history of adults in marine bivalves. Moreover, egg production was negatively correlated with the contamination level of metals in eggs. There was a further lagged growth in the contaminated larvae, indicating the potential adverse and latent effects of maternally transferred metals on the viability of oyster offspring. Our findings highlighted the importance of transgenerational studies on long-term metal exposure in marine bivalves.Nanyan WengWen-Xiong WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nanyan Weng Wen-Xiong Wang Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects
description	Abstract Understanding the maternal transfer of contaminants and their potential effects has great implications for a valid ecological assessment of environmental pollution. However, relevant studies on marine bivalves are very limited. Here, we examined the maternal transfer of trace metals in populations of oyster Crassostrea hongkongensis with contrasting metal exposure histories. Elevated accumulation of trace metals was observed in eggs and larvae from contaminated sites, suggesting maternal transfer of multi-metals in natural oyster populations. The dynamics of maternally transferred metals was for the first time documented in this study. We demonstrated that excessively transferred metals in contaminated larvae were rapidly eliminated during the early developmental stage, and the efflux rate of metals in larvae was greatly dependent on environmental contamination level. These results provided the first field evidence of modified metal biokinetics in offsprings due to exposure history of adults in marine bivalves. Moreover, egg production was negatively correlated with the contamination level of metals in eggs. There was a further lagged growth in the contaminated larvae, indicating the potential adverse and latent effects of maternally transferred metals on the viability of oyster offspring. Our findings highlighted the importance of transgenerational studies on long-term metal exposure in marine bivalves.
format	article
author	Nanyan Weng Wen-Xiong Wang
author_facet	Nanyan Weng Wen-Xiong Wang
author_sort	Nanyan Weng
title	Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects
title_short	Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects
title_full	Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects
title_fullStr	Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects
title_full_unstemmed	Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects
title_sort	dynamics of maternally transferred trace elements in oyster larvae and latent growth effects
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c4495e65a823430d9348fd4b88fe9784
work_keys_str_mv	AT nanyanweng dynamicsofmaternallytransferredtraceelementsinoysterlarvaeandlatentgrowtheffects AT wenxiongwang dynamicsofmaternallytransferredtraceelementsinoysterlarvaeandlatentgrowtheffects
_version_	1718395425814216704

Dynamics of maternally transferred trace elements in oyster larvae and latent growth effects

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