Chytrid fungus infections in laboratory and introduced Xenopus laevis populations: assessing the risks for U.K. native amphibians.
Chytrid fungus infections in laboratory and introduced Xenopus laevis populations: assessing the risks for U.K. native amphibians.
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DOI：
10.1016/j.biocon.2015.01.034
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发表时间：
2015-04
影响因子：
5.9
通讯作者：
Guille, Matthew J.
中科院分区：
文献类型：
--
作者：
Tinsley, Richard C.;Coxhead, Peter G.;Stott, Lucy C.;Tinsley, Matthew C.;Piccinni, Maya Z.;Guille, Matthew J.
关键词：
我们解决了传播壶菌（Bd）的非洲爪蟾的潜力。本文报道了X.在英国的莱维斯感染最多的是Bd。Bd感染X.在英国的野外，50年后，第一个主机引入。平行调查发现，没有Bd在本地两栖动物同域与感染X。光滑。全球其他区域的相互作用/成果可能不同，但需要可靠的数据。壶菌属真菌Batrachochytrium dendrobatium（Bd）是当前保护生物学挑战中臭名昭著的，负责两栖动物物种的大规模死亡和灭绝。世界两栖动物贸易涉及全球传播。南非非洲爪蟾的出口导致了这种入侵物种在四大洲的建立。Bd在非洲自然感染这一宿主，现在在几个引进的种群中发生。然而，以前的研究没有调查到共同发生的本地两栖动物区系的感染转移。一项对27名英国人的调查显示，机构维护X。laevis的研究表明，大多数实验室都有低水平的感染，如果动物被释放到野外，对本地物种来说是一种风险。RT-PCR检测结果表明，Bd在两个引进的英国。种群X. laevis，in Wales威尔士and Lincolnshire林肯郡.实验室和田间研究表明，感染水平随着压力的增加而增加，特别是低温。在英国，本地两栖动物在春季进入池塘在X.有寒冷升高的Bd感染的光滑皮肤。自从X病毒被引入以来，交叉感染的暴露可能已经反复出现。莱维斯，>20年在林肯郡和50年在威尔士。这些地点为评估X的影响提供了重要的测试。在Bd传播上的光滑。然而，对174种本地两栖动物（蟾蜍，蛙，Lissotriton和Triturus spp.），同域的Bd感染的引进种群，没有显示出与X。光滑。这些原生两栖动物的丰度表明，在几十年的共同发生后，没有显着的负面人口水平的影响。
We addressed the potential for transmission of chytrid fungus (Bd) by Xenopus laevis. A survey of laboratory colonies of X. laevis in the U.K. found most infected with Bd. Bd infects X. laevis in the wild in the U.K., 50 years after original host introduction. Parallel surveys found no Bd in native amphibians sympatric with infected X. laevis. Interactions/outcomes may differ in other global regions but robust data are needed. The chytrid fungus Batrachochytrium dendrobatidis (Bd) is notorious amongst current conservation biology challenges, responsible for mass mortality and extinction of amphibian species. World trade in amphibians is implicated in global dissemination. Exports of South African Xenopus laevis have led to establishment of this invasive species on four continents. Bd naturally infects this host in Africa and now occurs in several introduced populations. However, no previous studies have investigated transfer of infection into co-occurring native amphibian faunas. A survey of 27 U.K. institutions maintaining X. laevis for research showed that most laboratories have low-level infection, a risk for native species if animals are released into the wild. RT-PCR assays showed Bd in two introduced U.K. populations of X. laevis, in Wales and Lincolnshire. Laboratory and field studies demonstrated that infection levels increase with stress, especially low temperature. In the U.K., native amphibians may be exposed to intense transmission in spring when they enter ponds to spawn alongside X. laevis that have cold-elevated Bd infections. Exposure to cross-infection has probably been recurrent since the introduction of X. laevis, >20 years in Lincolnshire and 50 years in Wales. These sites provide an important test for assessing the impact of X. laevis on Bd spread. However, RT-PCR assays on 174 native amphibians (Bufo, Rana, Lissotriton and Triturus spp.), sympatric with the Bd-infected introduced populations, showed no foci of self-sustaining Bd transmission associated with X. laevis. The abundance of these native amphibians suggested no significant negative population-level effect after the decades of co-occurrence.
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影响因子：
6
作者：
Fisher, Matthew C.;Garner, Tyenton W. J.
通讯作者：
Garner, Tyenton W. J.
影响因子：
3.7
作者：
Garmyn, An;Van Rooij, Pascale;Martel, An
通讯作者：
Martel, An
DOI：
10.1073/pnas.0506889103
发表时间：
2006-02-28
影响因子：
11.1
作者：
Lips, KR;Brem, F;Collins, JP
通讯作者：
Collins, JP
影响因子：
2.9
作者：
Solis, Rigoberto;Lobos, Gabriel;Bosch, Jaime
通讯作者：
Bosch, Jaime
影响因子：
2.6
作者：
Rollins-Smith, Louise A.;Ramsey, Jeremy P.;Woodhams, Douglas C.
通讯作者：
Woodhams, Douglas C.