期刊
FUNGAL ECOLOGY
卷 66, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.funeco.2023.101298
关键词
fungal dispersal; movement ecology; HYSPLIT; Alternaria
Survival and movement of microorganisms in the atmosphere play a critical role. Larger spores have poorer survival but shorter settling time, while smaller spores have longer survival and potential dispersal over farther distances.
A frequently ignored but critical aspect of microbial dispersal is survival in the atmosphere. We exposed spores of two closely related, morphologically dissimilar, and economically important fungal pathogens to typical atmo-spheric environments and modeled their movement in the troposphere. Alternaria solani conidia are nearly 10 times larger than A. alternata conidia, but in our experiments, most died within 24 h, while over half of A. alternata conidia remained viable on day 12. Next, we modeled the movement of spores across North America. We predict 99% of the larger A. solani conidia settle within 24 h, with a maximum dispersal distance of 100 km. By contrast, most A. alternata conidia remain airborne for more than 12 days, and dispersal over long distances (2000 km) is likely. Counterintuitively, the larger A. solani conidia survive poorly, as compared to smaller A. alternata conidia, but also land sooner and move over shorter distances.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据