Are infectious diseases really killing corals? Alternative interpretations of the experimental and ecological data
Are infectious diseases really killing corals? Alternative interpretations of the experimental and ecological data
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DOI：
10.1016/j.jembe.2007.02.015
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发表时间：
2007-08-03
影响因子：
2
通讯作者：
Hoegh-Guldberg, Ove
中科院分区：
文献类型：
--
作者：
Lesser, Michael P.;Bythell, John C.;Hoegh-Guldberg, Ove
新出现的传染病是一个世界性问题，据信在珊瑚礁退化中发挥了重要作用。珊瑚疾病的研究是困难的，但使用文化无关的分子技术一直是，并将继续是有用的系统中，数量有限的可见的迹象通常被用来定义一个“珊瑚疾病”。我们认为，珊瑚“疾病”，除了罕见的例外，是继发于暴露于生理压力（如温度升高），导致宿主抵抗力下降和细菌的生长通常是良性和非致病性的机会性感染。这些细菌来自环境、宿主或珊瑚粘液层，成为机会致病菌。虽然困难和耗时，我们不主张放弃珊瑚致病病原体的研究。然而，这些研究应包括全面努力，以更好地了解珊瑚疾病与世界各地珊瑚礁上发生的主要是人为的环境变化之间的关系。这些环境损害是生理压力的原因，随后导致珊瑚死亡率和发病率的许多机制，包括压倒性的感染机会病原体。(c)2007年由Elsevier B.V.出版。
Emerging infectious diseases are a worldwide problem and are believed to play a major role in coral reef degradation. The study of coral diseases is difficult but the use of culture-independent molecular techniques has been, and will continue to be, useful in a system where a limited number of visible signs are commonly used to define a "coral disease". We propose that coral "diseases", with rare exception, are opportunistic infections secondary to exposure to physiological stress (e.g. elevated temperature) that result in reduced host resistance and unchecked growth of bacteria normally benign and non-pathogenic. These bacteria are from the environment, the host, or the coral mucus layer and become opportunistic pathogens. While difficult and time consuming, we do not advocate abandoning the study of disease-causing pathogens in corals. However, these studies should include comprehensive efforts to better understand the relationship between coral diseases and environmental changes, largely anthropogenic in nature, occurring on coral reefs around the world. These environmental insults are the cause of the physiological stress that subsequently leads to coral mortality and morbidity by many mechanisms including overwhelming infections by opportunistic pathogens. (c) 2007 Published by Elsevier B.V.