*Correspondence | Rawa Abdulkareem Abd, Department of Biology/ College of Science/ University of Thi-Qar, Iraq; Email: sci131.murtdha.Rawaa.abd@sci.utq.edu.iq Citation | Abd, R.A. 2024. Exploring the unseen: novel microbes and their impact on biogeochemical cycling. Hosts and Viruses, 11: 45-55. DOI | https://dx.doi.org/10.17582/journal.hv/2024/11.45.55