Microorganisms is a scientific, peer-reviewed, open access journal of microbiology, published monthly online by MDPI.

A microorganism, or microbe, [a] is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was suspected …

Mar 25, 2026 · The major groups of microorganisms—namely bacteria, archaea, fungi (yeasts and molds), algae, protozoa, and viruses—are summarized below. Links to the more detailed articles …

Mar 28, 2024 · What is Microorganism? Microorganisms, often referred to as microbes, constitute a diverse and pervasive group of life forms characterized by their microscopic dimensions, typically …

Aug 4, 2025 · Microorganisms form the biochemical scaffolding upon which all macroscopic life depends. They manage nutrient cycles, influence weather patterns, control atmospheric gases, and …

Microorganism is a class of biological cells constituting a vast domain of prokaryotes, and typically include bacteria, fungi, viruses, and microalgae, etc. Microorganism is micrometres in size and …

Nowhere is that statement truer than in the world of microorganisms. Microorganisms (also called microbes) are organisms which share the property of being only individually seen by microscopy.

Microbes, which are also called micro-organisms, are a group of organisms that are too small to be seen with the naked eye. Despite being even smaller than the human cell, microbes still vary …

Microorganisms differ from each other not only in size, but also in structure, habitat, metabolism, and many other characteristics. While we typically think of microorganisms as being unicellular, there …

Generally microbes can be divided into two categories: the cellular microbes (or organisms) and the acellular microbes (or agents). In the cellular camp we have the bacteria, the archaea, the fungi, and …