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一种生态相关的海寄生虫跨全球传播
Isabella T Ritchie1, Brayan Vilanova-Cuevas2, Ashley Altera2
1College of Marine Science, University of South Florida, St. Petersburg, FL 33701, United States.
The ISME journal
|February 17, 2024
概括
一种毁灭性的状体疾病,状体病,在加勒比海和现在的阿曼,造成了Diadema海的大规模死亡. 这种病原体,Philaster sp.,已经迅速传播,威胁到全球珊瑚礁的健康.
科学领域:
- 海洋生物学 海洋生物学
- 生态生态学 生态生态学
- 微生物学 微生物学
背景情况:
- 20世纪80年代Diadema antillarum的大规模死亡导致加勒比海珊瑚礁转向藻类主导.
- 在2022年加勒比海地区,一种形形病原体导致了Diadema antillarum的显著死亡率.
- 在2022-2023年,Diadema setosum在地中海和阿曼经历了大规模死亡.
研究的目的:
- 为了确定阿曼Diadema setosum死亡率的致病原体.
- 为了确定阿曼病原体是否与加勒比海的Diadema antillarum疫情有关.
- 评估这种皮动物疾病的传播和影响.
主要方法:
- 在阿曼受影响的子中检测到18S rRNA基因序列.
- 将阿曼病原体序列与加勒比菲拉斯特菌株进行比较.
- 试验挑战的Diadema setosum与培养的加勒比海Philaster sp. 的挑战
主要成果:
- 来自阿曼子的18S rRNA基因序列与导致加勒比死亡率的Philaster菌株相同.
- 实验性感染证实了Philaster菌株能够在Diadema setosum中引起scuticociliatosis的能力.
- 该病原体已经从加勒比海扩散到印度-太平洋地区.
结论:
- 这种的化物是Philaster sp. 负责加勒比海的Diadema antillarum大规模死亡已经蔓延到印度-太平洋地区.
- 全球监测和传播机制研究对于管理这种珊瑚礁威胁至关重要.
- 迫切需要采取行动,以应对在生态重要海种群中快速蔓延的滑皮病.
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