Ambient ultraviolet B radiation induced valve behavioral acclimation of Pacific oyster which resulted from the different response strategies of smooth and striated adductor muscles

Light not only conveys image-forming vision but also has an impact on various physiological functions. In particular, ultraviolet B (UVB) radiation has the closest relationship with living organisms. For Pacific oysters (Crassostrea gigas), alteration of valve behavior is one of the most important w...

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Bibliographic Details
Published in:Ecotoxicology and Environmental Safety
Main Authors: Hongce Song, Lei Wei, Mingyu Zhong, Xi Chen, Chaoyi Xie, Xiao Chen, Xiaona Wang, Baoyu Huang, Yaqiong Liu, Meiwei Zhang, Yitao Qi, Xiaotong Wang
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2021
Subjects:
UVB exposure
Crassostrea gigas
Valve behavior
Adductor muscle
Metabolomics
socio
envir
Pacific
Pacific oyster
Online Access:https://doi.org/10.1016/j.ecoenv.2021.113035
https://doaj.org/article/74dfc8bc279147f093c44bf945e03d2f
Description
Summary:Light not only conveys image-forming vision but also has an impact on various physiological functions. In particular, ultraviolet B (UVB) radiation has the closest relationship with living organisms. For Pacific oysters (Crassostrea gigas), alteration of valve behavior is one of the most important ways responding to ambient UVB. In the present study, the response of adult C. gigas to sunlight (especially UVB) was evaluated by monitoring valve activity and further elucidated at the physiological and metabolomic levels. After exposure, the valve activity of C. gigas demonstrated flexible acclimation to the ambient conditions. The potential adjustment of osmoregulation and oxidative stress might be related to ambient UVB radiation. Mycosporine-like amino acids might contribute to the protection of C. gigas against UVB, while precursors of β-alanine and degradation products of 5-hydroxytryptamine might adjust the contraction of the adductor muscles. The different responses of the adductor muscles (smooth and striated) were manifested in signal transduction and metabolisms of energy and nucleotide. This study not only indicated the correlation between the valve behavioral changes in oysters and light radiation, especially UVB, but illustrated the acclimation strategies of oysters to ambient light (UVB) environment.

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