Waterfowl: Potential Environmental Reservoirs of the Chytrid Fungus Batrachochytrium dendrobatidis
Waterfowl: Potential Environmental Reservoirs of the Chytrid Fungus Batrachochytrium dendrobatidis
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DOI：
10.1371/journal.pone.0035038
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发表时间：
2012-04-13
期刊：
影响因子：
3.7
通讯作者：
Martel, An
中科院分区：
文献类型：
--
作者：
Garmyn, An;Van Rooij, Pascale;Martel, An
壶菌病的致病因子水蛭壶菌（Batrachochytrium dendroatidis）的感染已被证明在世界范围内两栖动物数量的下降中起着重要作用。人们对这种真菌的传播知之甚少。鸟类的迁徙可能促进了石斛在环境中的传播。为此，采用实时荧光定量PCR （real-time quantitative PCR, qPCR）对比利时397只大雁的趾部进行了检测。此外，我们还对水禽角化趾鳞上树突线虫的趋化性、粘附性、干燥后的存活和增殖进行了体外实验。qPCR结果显示，76只鹅（15%）对树线虫呈阳性反应。体外实验结果表明，水鸟的角化趾会吸引水鸟的角化趾，水鸟的角化趾会吸引水鸟的角化趾，水鸟的角化趾会吸引水鸟的角化趾，水鸟的角化趾会吸引水鸟的角化趾，水鸟的角化趾会吸引水鸟的角化趾。然而，干燥是难以忍受的。这表明水禽是石蛭病潜在的环境宿主。
Infections with Batrachochytrium dendrobatidis (B. dendrobatidis), the causal agent of chytridiomycosis, have been shown to play an important role in the decline of amphibians worldwide. Spread of the fungus is poorly understood. Bird movement might possibly contribute to the spread of B. dendrobatidis in the environment. Therefore, 397 wild geese in Belgium were screened for presence of B. dendrobatidis on their toes using real-time quantitative PCR (qPCR). In addition, chemotaxis towards, adhesion, survival after desiccation and proliferation of B. dendrobatidis on keratinous toe scales from waterfowl were examined in vitro. qPCR revealed that 76 geese (15%) were positive for B. dendrobatidis. Results of the in vitro tests showed that B. dendrobatidis is attracted to the keratinous toes of aquatic birds on which they can adhere and even proliferate. However, desiccation is poorly tolerated. This suggests waterfowl are potential environmental reservoirs for B. dendrobatidis.