Acclimatory processes are likely responsible for metal tolerance in oyster embryos

Thanvapon Yingprasertchai; Richard Man Kit Yu; Wayne A. O'Connor; Tegan Hopwood; Geoff R. MacFarlane

doi:10.1016/j.marenvres.2017.03.005

Acclimatory processes are likely responsible for metal tolerance in oyster embryos

Thanvapon Yingprasertchai, Richard Man Kit Yu, Wayne A. O'Connor, Tegan Hopwood, Geoff R. MacFarlane^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We aimed to determine if offspring of oysters from contaminated locations were more tolerant to metals, and whether this tolerance could be attributed to acclimation. Oysters from 10 estuaries were sampled, representing a gradient in metal contamination. Tolerance to metals of the F₁ offspring from adults residing in these estuaries was assessed. Then, adults from these estuaries were translocated to a single estuary and their offspring tolerance reassessed. No linear relationship was found between the Cu concentrations of adults and their offspring's tolerance to Cu. A positive linear relationship was found between the Zn concentration of adults and the Zn EC₅₀'s of their offspring. Zn tolerance was lost after translocation. Zn EC₅₀ values of offspring from transplanted adults bore no relation to the Zn EC₅₀'s of their location of origin. Thus the initial tolerance observed could be attributed to acclimation transferred to the F₁ generation.

Original language	English
Pages (from-to)	49-61
Number of pages	13
Journal	Marine Environmental Research
Volume	127
DOIs	https://doi.org/10.1016/j.marenvres.2017.03.005
Publication status	Published - Jun 2017
Externally published	Yes

Keywords

Acclimation
Copper
Metals
Sydney rock oyster
Zinc

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10.1016/j.marenvres.2017.03.005

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title = "Acclimatory processes are likely responsible for metal tolerance in oyster embryos",

abstract = "We aimed to determine if offspring of oysters from contaminated locations were more tolerant to metals, and whether this tolerance could be attributed to acclimation. Oysters from 10 estuaries were sampled, representing a gradient in metal contamination. Tolerance to metals of the F1 offspring from adults residing in these estuaries was assessed. Then, adults from these estuaries were translocated to a single estuary and their offspring tolerance reassessed. No linear relationship was found between the Cu concentrations of adults and their offspring's tolerance to Cu. A positive linear relationship was found between the Zn concentration of adults and the Zn EC50's of their offspring. Zn tolerance was lost after translocation. Zn EC50 values of offspring from transplanted adults bore no relation to the Zn EC50's of their location of origin. Thus the initial tolerance observed could be attributed to acclimation transferred to the F1 generation.",

keywords = "Acclimation, Copper, Metals, Sydney rock oyster, Zinc",

author = "Thanvapon Yingprasertchai and Yu, {Richard Man Kit} and O'Connor, {Wayne A.} and Tegan Hopwood and MacFarlane, {Geoff R.}",

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journal = "Marine Environmental Research",

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AU - Yingprasertchai, Thanvapon

AU - Yu, Richard Man Kit

AU - O'Connor, Wayne A.

AU - Hopwood, Tegan

AU - MacFarlane, Geoff R.

PY - 2017/6

Y1 - 2017/6

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AB - We aimed to determine if offspring of oysters from contaminated locations were more tolerant to metals, and whether this tolerance could be attributed to acclimation. Oysters from 10 estuaries were sampled, representing a gradient in metal contamination. Tolerance to metals of the F1 offspring from adults residing in these estuaries was assessed. Then, adults from these estuaries were translocated to a single estuary and their offspring tolerance reassessed. No linear relationship was found between the Cu concentrations of adults and their offspring's tolerance to Cu. A positive linear relationship was found between the Zn concentration of adults and the Zn EC50's of their offspring. Zn tolerance was lost after translocation. Zn EC50 values of offspring from transplanted adults bore no relation to the Zn EC50's of their location of origin. Thus the initial tolerance observed could be attributed to acclimation transferred to the F1 generation.

KW - Acclimation

KW - Copper

KW - Metals

KW - Sydney rock oyster

KW - Zinc

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JF - Marine Environmental Research

ER -

Acclimatory processes are likely responsible for metal tolerance in oyster embryos

Abstract

Keywords

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