Sartor Francesca, Eelderink-Chen Zheng, Aronson Ben, Bosman Jasper, Hibbert Lauren E, Dodd Antony N, Kovács Ákos T, Merrow Martha
Institute of Medical Psychology, Medical Faculty, LMU Munich, 80336 Munich, Germany.
Department of Biology, University of Redlands, Redlands, CA 92373, USA.
Biology (Basel). 2019 May 22;8(2):41. doi: 10.3390/biology8020041.
Circadian clocks in plants, animals, fungi, and in photosynthetic bacteria have been well-described. Observations of circadian rhythms in non-photosynthetic Eubacteria have been sporadic, and the molecular basis for these potential rhythms remains unclear. Here, we present the published experimental and bioinformatical evidence for circadian rhythms in these non-photosynthetic Eubacteria. From this, we suggest that the timekeeping functions of these organisms will be best observed and studied in their appropriate complex environments. Given the rich temporal changes that exist in these environments, it is proposed that microorganisms both adapt to and contribute to these daily dynamics through the process of temporal mutualism. Understanding the timekeeping and temporal interactions within these systems will enable a deeper understanding of circadian clocks and temporal programs and provide valuable insights for medicine and agriculture.
植物、动物、真菌和光合细菌中的生物钟已得到充分描述。对非光合真细菌中昼夜节律的观察较为零散，这些潜在节律的分子基础仍不清楚。在此，我们展示了已发表的关于这些非光合真细菌中昼夜节律的实验和生物信息学证据。据此，我们认为这些生物体的计时功能在其适当的复杂环境中最易被观察和研究。鉴于这些环境中存在丰富的时间变化，有人提出微生物通过时间互利共生过程既适应这些日常动态，又对其有所贡献。了解这些系统中的计时和时间相互作用将有助于更深入地理解生物钟和时间程序，并为医学和农业提供有价值的见解。
