气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and cadmium uptake of the smooth scallop Flexopecten glaber

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DOI	https://doi.org/10.1594/PANGAEA.887768
	Seawater carbonate chemistry and cadmium uptake of the smooth scallop Flexopecten glaber
	Nardi; Alessandro; Benedetti; Maura; Fattorini; Daniele; Regoli; Francesco
发布日期	2018-03-29
数据集类型	dataset
英文关键词	Animalia ; Benthic animals ; Benthos ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Flexopecten glaber ; Immunology/Self-protection ; Inorganic toxins ; Laboratory experiment ; Mediterranean Sea ; Mollusca ; Single species ; Temperate
英文简介	Ocean acidification (OA) may affect sensitivity of marine organisms to metal pollution modulating chemical bioavailability, bioaccumulation and biological responsiveness of several cellular pathways. In this study, the smooth scallop Flexopecten glaber was exposed to various combinations of reduced pH (pH/pCO2 7.4/3000 µatm) and Cd (20 µg/L). The analyses on cadmium uptake were integrated with those of a wide battery of biomarkers including metallothioneins, single antioxidant defenses and total oxyradical scavenging capacity in digestive gland and gills, lysosomal membrane stability and onset of genotoxic damage in haemocytes. Reduced pH slightly increased concentration of Cd in scallop tissues, but no effects were measured in terms of metallothioneins. Induction of some antioxidants by Cd and/or low pH in the digestive gland was not reflected in variations of the total oxyradical scavenging capacity, while the investigated stressors caused a certain inhibition of antioxidants and reduction of the scavenging capacity toward peroxyl radical in the gills. Lysosomal membrane stability and onset of genotoxic damages showed high sensitivity with possible synergistic effects of the investigated factors. The overall results suggest that indirect effects of ocean acidification on metal accumulation and toxicity are tissue-specific and modulate oxidative balance through different mechanisms.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/216269
推荐引用方式 GB/T 7714	Nardi,Alessandro,Benedetti,et al. Seawater carbonate chemistry and cadmium uptake of the smooth scallop Flexopecten glaber.2018-03-29.https://doi.org/10.1594/PANGAEA.887768.