Microbiome interactions and their ecological implications at the Salton Sea
Microbiome interactions and their ecological implications at the Salton Sea
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DOI：
10.3733/ca.2022a0002
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发表时间：
2022-04
影响因子：
1.3
通讯作者：
Hannah L. Freund;M. Maltz;Mark P. Swenson;Talyssa M. Topacio;Vanessa A. Montellano;W. Porter;E. Aronson
中科院分区：
文献类型：
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作者：
Hannah L. Freund;M. Maltz;Mark P. Swenson;Talyssa M. Topacio;Vanessa A. Montellano;W. Porter;E. Aronson
尽管索尔顿湖曾经是人类和野生动物的繁荣之地，但它现在已经退化到生态系统崩溃的程度。当地扬尘排放的增加带来了风成（风吹的）微生物，它们与污染物和矿物质一起进入大气，对该地区的居民产生不利影响。该湖某些区域微生物群落的增殖可能对当地生态系统产生不成比例的影响。然而，对于这个干涸湖床的生物地球化学过程如何影响微生物群落组成和扩散，人们知之甚少。为了阐明这些微生物如何对该湖多变的环境做出贡献并适应它，我们综合了对三个特定生态位微生物群落——裸露湖床（干盐湖）、湖水和风成微生物群落——的研究，并强调了现代分子技术，如宏基因组学，以及物理科学方法，包括传输模型，以预测干涸的湖床将如何影响微生物过程。我们认为，需要明确考虑这个系统内的微生物群落，以便为有关生态相关微生物群落的分布和功能作用提供重要信息。这些知识有助于为旨在恢复该湖人类和生态系统健康的监管措施提供信息。
Although the Salton Sea was once a thriving destination for humans and wildlife, it has now degraded to the point of ecosystem collapse. Increases in local dust emissions have introduced aeolian (wind-blown) microorganisms that travel, along with contaminants and minerals, into the atmosphere, detrimentally impacting inhabitants of the region. Proliferation of certain microbial groups in regions of the Sea may have a disproportionate impact on local ecological systems. Yet, little is known about how the biogeochemical processes of this drying lakebed influence microbial community composition and dispersal. To elucidate how these microorganisms contribute, and adapt, to the Sea's volatile conditions, we synthesize research on three niche-specific microbiomes — exposed lakebed (playa), the Sea, and aeolian — and highlight modern molecular techniques, such as metagenomics, coupled with physical science methodologies, including transport modeling, to predict how the drying lakebed will affect microbial processes. We argue that an explicit consideration of microbial groups within this system is needed to provide vital information about the distribution and functional roles of ecologically pertinent microbial groups. Such knowledge could help inform regulatory measures aimed at restoring the health of the Sea's human and ecological systems.