Scanes Elliot, Siboni Nachshon, Potts Jaimie, Rao Shivanesh, Labbate Maurizio, Seymour Justin R
Climate Change Cluster, University of Technology Sydney, Ultimo, NSW, Australia.
NSW Department of Climate Change, Energy, the Environment and Water, Parramatta, NSW, Australia.
iScience. 2024 Dec 21;28(2):111674. doi: 10.1016/j.isci.2024.111674. eCollection 2025 Feb 21.
Oyster mortality and human food poisoning events are linked to pathogens from the genus. However, the link between these events, planktonic bacterial dynamics and environmental variables has not yet been resolved. In Port Stephens, Australia, we characterized the microbial community and quantified the abundance of total , and in a (i) 27-month seawater planktonic microbial time-series; (ii) samples of Pacific oysters () during a mortality event and (iii) seawater samples following the mortality event. and exhibited seasonal abundance, peaking during the summer months. Total and in seawater were significantly greater at sites with high levels of oyster mortality and decreased 5-fold in the weeks following oyster mortality. Our findings provide evidence for the role of in oyster mortality events and indicate that ocean warming and elevated phytoplankton may stimulate putative pathogens in the genus.
牡蛎死亡事件和人类食物中毒事件与该属的病原体有关。然而，这些事件、浮游细菌动态和环境变量之间的联系尚未得到解决。在澳大利亚斯蒂芬斯港，我们对微生物群落进行了表征，并在以下样本中量化了总细菌、弧菌和副溶血性弧菌的丰度：（i）为期27个月的海水浮游微生物时间序列；（ii）在一次死亡事件期间的太平洋牡蛎（Crassostrea gigas）样本；以及（iii）死亡事件后的海水样本。弧菌和副溶血性弧菌呈现出季节性丰度，在夏季达到峰值。在牡蛎死亡率高的地点，海水中的总细菌和弧菌显著更多，并且在牡蛎死亡后的几周内减少了5倍。我们的研究结果为弧菌在牡蛎死亡事件中的作用提供了证据，并表明海洋变暖和浮游植物数量增加可能会刺激弧菌属中的假定病原体。
