Université Clermont Auvergne, CNRS, Laboratoire Microorganismes : Genome, Environnement (LMGE), 63000, Clermont-Ferrand, France.
Université Clermont Auvergne, CNRS, GEOLAB, 63000, Clermont-Ferrand, France.
Microb Ecol. 2020 Nov;80(4):741-745. doi: 10.1007/s00248-020-01541-6. Epub 2020 Jun 18.
Aster-like nanoparticles (ALNs) are newly described femto-entities. Their ecology (e.g., geographic distribution, spatial dynamic, preferences, forcing factors) is still unknown. Here, we report that these entities, which have largely been ignored until now, can develop or maintain themselves in most aquatic environments in the Loire River catchment, France. We observed a significant influence of the trophic state on ALN ecological distributions. A positive relationship between prokaryotic abundance and ALN (r = 0.72, p < 0.01) has been identified, but its exact nature remains to be clarified. Combined with their ubiquitous distribution and high abundances (up to 7.9 × 10 ALNs mL) recorded in our samples, this probably makes ALNs an overlooked functional component in aquatic ecosystems.
星状纳米颗粒（ALNs）是新近描述的毫微实体。它们的生态学（例如地理分布、空间动态、偏好、驱动因素）仍然未知。在这里，我们报告称，这些迄今为止在很大程度上被忽视的实体，可以在法国卢瓦尔河流域的大多数水生环境中发育或维持自身。我们观察到营养状态对 ALN 生态分布有显著影响。已经确定了原核生物丰度与 ALN 之间的正相关关系（r = 0.72，p < 0.01），但其确切性质仍有待澄清。结合其在我们的样本中无处不在的分布和高丰度（高达 7.9×10 ALNs mL），这可能使 ALNs 成为水生生态系统中被忽视的功能组成部分。
