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首页> 外文期刊>Aerobiologia >Interhemispheric transport of viable fungi and bacteria from Africa to the Caribbean with soil dust
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Interhemispheric transport of viable fungi and bacteria from Africa to the Caribbean with soil dust

机译：在地球上，通过土壤尘土将有活力的真菌和细菌从非洲向加勒比海的半球运输

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Daily aerosol samples collected in trade winds at Barbados, West Indies, throughout 1996-1997 yielded significant concentrations of viable (culture-forming) bacteria and fungi only when African dust was present. Air masses from the North Atlantic, North America, and Europe yielded no cultivable organisms. The strong association of cultivable organisms with African dust suggests various factors that might be relevant to viability. Although we did not specifically look for pathogens, these same mechanisms could protect them as well. Our results suggest that arid regions could be an important source for the long-range transport of viable microorganisms. The transport of microorganisms to Barbados follows a clear meteorological and seasonal pattern, which suggests that it should be possible to model the transport process and to predict events. Microorganism and dust concentrations were unusually great in 1997, possibly in response to the strong El Nino. This suggests that the long-range transport of microorganisms might be particularly responsive to climate variability in general.
机译：在整个1996-1997年期间，在西印度群岛巴巴多斯的贸易风中每天收集的气溶胶样品仅在存在非洲粉尘的情况下才产生大量的活菌（形成培养物）和真菌。来自北大西洋，北美和欧洲的气团没有产生可耕种的生物。可耕种生物与非洲尘埃之间的紧密联系表明可能与生存能力有关的各种因素。尽管我们没有专门寻找病原体，但是这些相同的机制也可以保护它们。我们的结果表明，干旱地区可能是可行微生物长距离运输的重要来源。微生物向巴巴多斯的运输遵循明显的气象和季节性模式，这表明应该有可能对运输过程进行建模并预测事件。 1997年，微生物和尘埃浓度异常高，可能是由于强烈的厄尔尼诺现象造成的。这表明，一般而言，微生物的长距离运输可能对气候变化特别敏感。

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