Seawater carbonate chemistry and microbial community composition and host-pathogen interactions between the blood clam and Vibrio harveyi

• Main Authors: Zha, Shanjie, Liu, Saixi, Su, Wenhao, Shi, Wei, Xiao, Guoqiang, Yan, Maocang, Liu, Guangxu
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Abundance; Alkalinity; total; standard error; Animalia; Aragonite saturation state; Bacteria; abundance in colony forming units; Benthic animals; Benthos; Bicarbonate ion; Biomass/Abundance/Elemental composition; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon; inorganic; dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Community composition and diversity; Containers and aquaria (20-1000 L or < 1 m**2); Entire community; Experiment duration; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Group; Heterotrophic prokaryotes; Laboratory experiment; Mollusca; Mortality/Survival; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.888196; https://doi.org/10.1594/PANGAEA.888196

It has been suggested that climate change may promote the outbreaks of diseases in the sea through altering the host susceptibility, the pathogen virulence, and the host-pathogen interaction. However, the impacts of ocean acidification (OA) on the pathogen components of bacterial community and the host-pathogen interaction of marine bivalves are still poorly understood. Therefore, 16S rRNA high-throughput sequencing and host-pathogen interaction analysis between blood clam (Tegillarca granosa) and Vibrio harveyi were conducted in the present study to gain a better understanding of the ecological impacts of ocean acidification. The results obtained revealed a significant impact of ocean acidification on the composition of microbial community at laboratory scale. Notably, the abundance of Vibrio, a major group of pathogens to many marine organisms, was significantly increased under ocean acidification condition. In addition, the survival rate and haemolytic activity of V. harveyi were significantly higher in the presence of haemolymph of OA treated T. granosa, indicating a compromised immunity of the clam and enhanced virulence of V. harveyi under future ocean acidification scenarios. Conclusively, the results obtained in this study suggest that future ocean acidification may increase the risk of Vibrio pathogen infection for marine bivalve species, such as blood clams.