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首页> 外文期刊>Applied Microbiology >Systematic Analysis of White Pox Disease in Acropora palmata of the Florida Keys and Role of Serratia marcescens
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Systematic Analysis of White Pox Disease in Acropora palmata of the Florida Keys and Role of Serratia marcescens

机译：系统分析佛罗里达州的匙叶草的白痘病和粘质沙雷氏菌的作用

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White pox disease (WPD) affects the threatened elkhorn coral, Acropora palmata . Owing in part to the lack of a rapid and simple diagnostic test, there have been few systematic assessments of the prevalence of acroporid serratiosis (caused specifically by Serratia marcescens ) versus general WPD signs. Six reefs in the Florida Keys were surveyed between 2011 and 2013 to determine the disease status of A. palmata and the prevalence of S. marcescens . WPD was noted at four of the six reefs, with WPD lesions found on 8 to 40% of the colonies surveyed. S. marcescens was detected in 26.9% (7/26) of the WPD lesions and in mucus from apparently healthy colonies both during and outside of disease events (9%; 18/201). S. marcescens was detected with greater frequency in A. palmata than in the overlying water column, regardless of disease status ( P = 0.0177). S. marcescens could not be cultured from A. palmata but was isolated from healthy colonies of other coral species and was identified as pathogenic pulsed-field gel electrophoresis type PDR60. WPD lesions were frequently observed on the reef, but unlike in prior outbreaks, no whole-colony death was observed. Pathogenic S. marcescens was circulating on the reef but did not appear to be the primary pathogen in these recent WPD episodes, suggesting that other pathogens or stressors may contribute to signs of WPD. Results highlight the critical importance of diagnostics in coral disease investigations, especially given that field manifestation of disease may be similar, regardless of the etiological agent.
机译：白痘病（WPD）影响濒临灭绝的麋鹿角珊瑚（Acropora palmata）。部分由于缺乏快速而简单的诊断测试，对于一般性WPD征象，很少有系统的评估来评价丙烯醛性锯齿状病（由粘质沙雷氏菌引起）的患病率。在2011年至2013年期间，对佛罗里达礁岛的6个珊瑚礁进行了调查，以确定棕榈palm的病情和marcescens的患病率。在六个珊瑚礁中有四个发现了WPD，在被调查的8％至40％的菌落中发现了WPD病变。在疾病事件发生期间和事件发生期间和之外，在WPD病变的26.9％（7/26）和明显健康的菌落的粘液中检出了粘液链球菌（9％; 18/201）。不论疾病状况如何，在棕榈曲霉中检出的链霉菌的频率均高于上覆水柱中的频率（P = 0.0177）。不能从棕榈果中培养marcescens，而是从其他珊瑚物种的健康菌落中分离得到，并被鉴定为PDR60型致病性脉冲场凝胶电泳。 WPD病变经常在珊瑚礁上观察到，但与以前的暴发流行不同，没有观察到整个菌落死亡。致病性粘杆菌（S. marcescens）在珊瑚礁上循环，但似乎不是最近这些WPD发作中的主要病原体，表明其他病原体或应激源可能是WPD的征兆。结果突出了诊断方法在珊瑚病调查中的至关重要性，特别是考虑到疾病的现场表现可能是相似的，而与病原体无关。

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