As indicated in the presentation of this Virtual Special Issue (VSI), as well as in its Call for Papers, the occurrence, fate, dynamics, effects and overall repercussions of the enormous variety of microorganisms present in soils and other environmental compartments on Earth, is of huge importance, and particularly it is fundamental to the conditioning of life and even to the time-course evolution of non-living constituents of our planet. With that in mind, shedding further light on some selected fields within this broad spectrum of research themes could be seen as an ambitious objective, but achievable when limited to progressing just a few steps forward, even if the long-term aim could be to reach a final and complete characterization and solution of all issues related to these broad lines of research and fields of knowledge. In view of this, the Editors of the Special Issue made a specific Call to receive contributions to increase the knowledge on the matter, which could stimulate future additional research. With a total number of 45 manuscripts received and 16 high-quality contributions published, we think this main objective was reached with the resulting papers now available.
Keywords: Environment; Microorganisms; Pollution; Soil; Water.
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