Suppr超能文献

芬诺斯堪的亚盾层深部土壤病毒圈暗示了缓慢的“繁荣和爆发”循环。

The Fennoscandian Shield deep terrestrial virosphere suggests slow motion 'boom and burst' cycles.

机构信息

Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.

Department of Plant Biology, Swedish University of Agricultural Science, Uppsala, Sweden.

出版信息

Commun Biol. 2021 Mar 8;4(1):307. doi: 10.1038/s42003-021-01810-1.

Abstract

The deep biosphere contains members from all three domains of life along with viruses. Here we investigate the deep terrestrial virosphere by sequencing community nucleic acids from three groundwaters of contrasting chemistries, origins, and ages. These viromes constitute a highly unique community compared to other environmental viromes and sequenced viral isolates. Viral host prediction suggests that many of the viruses are associated with Firmicutes and Patescibacteria, a superphylum lacking previously described active viruses. RNA transcript-based activity implies viral predation in the shallower marine water-fed groundwater, while the deeper and more oligotrophic waters appear to be in 'metabolic standby'. Viral encoded antibiotic production and resistance systems suggest competition and antagonistic interactions. The data demonstrate a viral community with a wide range of predicted hosts that mediates nutrient recycling to support a higher microbial turnover than previously anticipated. This suggests the presence of 'kill-the-winner' oscillations creating slow motion 'boom and burst' cycles.

摘要

深部生物圈包含来自生命的三个域的成员以及病毒。在这里,我们通过对三种具有不同化学性质、起源和年龄的地下水的群落核酸进行测序来研究深部陆地病毒圈。与其他环境病毒组和测序的病毒分离物相比,这些病毒组构成了一个高度独特的群落。病毒宿主预测表明,许多病毒与厚壁菌门和巴氏杆菌门有关,后者是一个缺乏先前描述的活性病毒的超级门。基于 RNA 转录的活性表明,在浅层海水补给的地下水中存在病毒捕食作用,而更深、更贫营养的水似乎处于“代谢待机”状态。病毒编码的抗生素产生和抗性系统表明存在竞争和拮抗相互作用。这些数据表明,存在一个具有广泛预测宿主的病毒群落,它介导养分循环,以支持比先前预期更高的微生物周转率。这表明存在“杀死胜利者”的震荡,创造了缓慢的“繁荣和爆发”循环。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5b9/7940616/58dbafe7e2d7/42003_2021_1810_Fig1_HTML.jpg

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验