Special Issues

Microorganisms publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Probiotics: The Current State of Scientific Knowledge
edited by
submission deadline 30 Apr 2025 | 10 articles | Viewed by 44715 | Submission Open
Keywords: microbiota modification; microbiological techniques for identifying microorganisms; probiotics in therapy; probiotics and antibiotic resistance
(This special issue belongs to the Section Gut Microbiota)
Gut Microbiome in Homeostasis and Disease, 2nd Edition
edited by
submission deadline 30 Apr 2025 | 11 articles | Viewed by 19736 | Submission Open
(This special issue belongs to the Section Gut Microbiota)
Gut Microbiota, Diet, and Gastrointestinal Cancer
edited by and Flavio De Maio
submission deadline 30 Apr 2025 | 7 articles | Viewed by 18814 | Submission Open
Keywords: gut microbiota; diet; nutrition; gastrointestinal cancer; colorectal cancer; probiotics; prebiotics; postbiotics; radiotherapy; chemotherapy
(This special issue belongs to the Section Gut Microbiota)
Recent Advances on Microbial Interactions with Materials and Their Applications
edited by , and Fang Guan
submission deadline 30 Apr 2025 | 5 articles | Viewed by 18728 | Submission Open
Keywords: microbiologically influenced corrosion; biofouling; biomineralization and bioleaching; elements cycle; microbial degradation.
(This special issue belongs to the Section Environmental Microbiology)
Bacteremia and Sepsis
edited by
submission deadline 30 Apr 2025 | 7 articles | Viewed by 14801 | Submission Open
Keywords: bacteremia; sepsis; bloodstream infection; virulence factors; clinical microbiology; surveillance
(This special issue belongs to the Section Medical Microbiology)
Host Versus Pathogen: Candida Infections, Immune Response and Therapy Perspectives
edited by and Elena Roselletti
submission deadline 30 Apr 2025 | 3 articles | Viewed by 12631 | Submission Open
Keywords: Candida spp.; candidiasis; mucosal infection; invasive infection; innate immune response; adaptive immune response; drug resistance; anti-Candida therapies
(This special issue belongs to the Section Molecular Microbiology and Immunology)
Advances in Host-Gut Microbiota
edited by and Marion Garofalo
submission deadline 30 Apr 2025 | 5 articles | Viewed by 11323 | Submission Open
Keywords: host– microbiota interactions; infectious and inflammatory gut disorders; microbiota ageing; intestinal epithelium
(This special issue belongs to the Section Gut Microbiota)
Shiga-Toxin Producing Escherichia coli and the Animal Host
edited by
submission deadline 30 Apr 2025 | 4 articles | Viewed by 10567 | Submission Open
Keywords: E. coli; STEC; animal-host; interaction; colonization; pathogenicity; diagnosis; prevention; therapy; alternatives
(This special issue belongs to the Section Medical Microbiology)
Interactions between Parasites/Pathogens and Vectors
edited by and Norman Ratcliffe
submission deadline 30 Apr 2025 | 4 articles | Viewed by 10089 | Submission Open
(This special issue belongs to the Section Public Health Microbiology)
Beneficial Microbes and Gastrointestinal Microbiota, 2nd Edition
edited by
submission deadline 30 Apr 2025 | 4 articles | Viewed by 9730 | Submission Open
Keywords: probiotics; gut microbiome; gastrointestinal health; intestinal dysbiosis; enteric diseases; pro-commensal strategy; bacterial consortium.
(This special issue belongs to the Section Gut Microbiota)
Advanced Research on Microbial Biofilms—a Themed Issue in Honor of Professor Gianfranco Donelli
edited by Jeffrey B. Kaplan, Steven L. Percival and
submission deadline 30 Apr 2025 | 5 articles | Viewed by 7907 | Submission Open
Keywords: microbial biofilms; antibiofilm; biofilm development; evolution of biofilms
(This special issue belongs to the Section Biofilm)
Advances in Research on Cyanobacteria
edited by , Nevena Đorđević and Dijana Lalić
submission deadline 30 Apr 2025 | 4 articles | Viewed by 7780 | Submission Open
Keywords: cyanobacteria; harmful algal blooms; cyanotoxins; secondary metabolites; cyanobacterial diversity and ecology; biotechnological use; biological loess crusts; health risk; environmental sustainability; cyanobacterial omics
(This special issue belongs to the Section Environmental Microbiology)
Molecular Ecology of Microalgae and Cyanobacteria
edited by , Karin Glaser and Ekaterina Pushkareva
submission deadline 30 Apr 2025 | 4 articles | Viewed by 7479 | Submission Open
Keywords: microalgae; cyanobacteria; molecular omics
(This special issue belongs to the Section Environmental Microbiology)
Fungal Biology and Interactions, 2nd Edition
edited by and Roberto Nascimento Silva
submission deadline 30 Apr 2025 | 8 articles | Viewed by 7299 | Submission Open
(This special issue belongs to the Section Molecular Microbiology and Immunology)
Microbial Nitrogen Cycle
edited by
submission deadline 30 Apr 2025 | 4 articles | Viewed by 7139 | Submission Open
Keywords: microbial nitrogen cycle; nitrogen fixation; nitrification; denitrification; ammonification
(This special issue belongs to the Section Environmental Microbiology)
Ticks and Tick-Borne Diseases in Animals, 2nd Edition submission deadline 30 Apr 2025 | 4 articles | Viewed by 6669 | Submission Open
Keywords: tick ecology; identification; tick-borne pathogen; vectorial role and capacity; laboratory and field control; new acaricides
(This special issue belongs to the Section Veterinary Microbiology)
Gut Microbiota in Health and Diseases: The Role of Pro-/Pre-/Syn-/Post-Biotics in the Gut–Liver–Brain Axis
edited by Mohamad Khalil and
submission deadline 30 Apr 2025 | 1 articles | Viewed by 5827 | Submission Open
Keywords: gut microbiome; gut– liver– brain axis; gastrointestinal tract; digestion; metabolism; immune function
(This special issue belongs to the Section Gut Microbiota)
Probiotic Bacteria in Fermented Foods submission deadline 30 Apr 2025 | 3 articles | Viewed by 5117 | Submission Open
Keywords: probiotic fermented food; health benefit; probiotic functionality; functional foods; indigenous fermentation
(This special issue belongs to the Section Food Microbiology)
Interactions of Mycorrhizal Fungi and Other Soil Microorganisms with Plants
edited by , Ruibo Sun and Jia Liu
submission deadline 30 Apr 2025 | 5 articles | Viewed by 4979 | Submission Open
Keywords: soil microbial community; plant; interaction; symbiotic relationship; soil pathogen
(This special issue belongs to the Section Plant Microbe Interactions)
Molecular Techniques, Novel Biomarkers and Coagulation-Based Methods in the Diagnosis of Periprosthetic Joint Infections submission deadline 30 Apr 2025 | 4 articles | Viewed by 4936 | Submission Open
Keywords: periprosthetic joint infections; diagnosis; molecular techniques; novel biomarkers; causative organism
(This special issue belongs to the Section Medical Microbiology)
Research on Diseases of Aquatic Organisms
edited by Geovana Dotta, and
submission deadline 30 Apr 2025 | 5 articles | Viewed by 4877 | Submission Open
Keywords: conservation and welfare of aquatic animals; ecotoxicology of aquatic environments; amphibian health and diseases; crustacean health and diseases; fish health and diseases; health and diseases of bivalve mollusks; health and diseases of other aquatic animals
(This special issue belongs to the Section Veterinary Microbiology)
Advances in Brucella
edited by
submission deadline 30 Apr 2025 | 2 articles | Viewed by 4699 | Submission Open
(This special issue belongs to the Section Medical Microbiology)
Advances in Veterinary Microbiology
edited by
submission deadline 30 Apr 2025 | 4 articles | Viewed by 4132 | Submission Open
Keywords: African Swine Fever Virus; Bluetongue Virus; Arboviruses; Microbiota; Metagenomics; Brucellosis
(This special issue belongs to the Section Veterinary Microbiology)
Research on Mycorrhizal Fungi
edited by , Marieta Hristozkova and
submission deadline 30 Apr 2025 | 1 articles | Viewed by 3980 | Submission Open
Keywords: mycorrhizal fungi; mycorrhizal symbiosis; plant– microbe interaction; plant nutrition; crop production
(This special issue belongs to the Section Plant Microbe Interactions)
Eukaryotic Microbial Sex: A Path to a Unified Understanding of Seven Major Supergroups
edited by
submission deadline 30 Apr 2025 | 3 articles | Viewed by 3766 | Submission Open
Keywords: mating type determination; mating-type inheritance; mating type substances and genes; mating pheromones; genomic DNA rearrangement; meiosis and gamete genesis
(This special issue belongs to the Section Molecular Microbiology and Immunology)
Research on Antimicrobial Activity of Natural Products, Second Edition submission deadline 30 Apr 2025 | 2 articles | Viewed by 3704 | Submission Open
Keywords: antimicrobial activity; bacteria; cyanobacteria; fungi; antibiotic resistance; natural compounds
(This special issue belongs to the Section Antimicrobial Agents and Resistance)
Advances in Research on Waterborne Pathogens
edited by Ashwini S. Kucknoor
submission deadline 30 Apr 2025 | 2 articles | Viewed by 3683 | Submission Open
Keywords: waterborne pathogens; pathogen detection; antimicrobial resistance; public health
(This special issue belongs to the Section Environmental Microbiology)
Microorganisms in Silage submission deadline 30 Apr 2025 | 3 articles | Viewed by 3671 | Submission Open
Keywords: ensiling; microbial community; microbial contamination; functional lactic acid bacteria; fermented feed
(This special issue belongs to the Section Food Microbiology)

Phenotyping the Athletic Gut Microbiota: The Basis of Health and Physical Performance?

edited by Jesús Álvarez-Herms
submission deadline 30 Apr 2025 | 1 articles | Viewed by 3445 | Submission Open
Keywords: physiology; gut microbiota; exercise; hypoxia; nutrition; hyperthermia
(This special issue belongs to the Section Gut Microbiota)
Soil Fungi in Sustainable Agriculture, 2nd Edition
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 2869 | Submission Open
Keywords: plant beneficial microorganisms; plant– fungi interactions; biofertilizers; inoculants; biocontrol agents
(This special issue belongs to the Section Plant Microbe Interactions)
Pathogens in Aquaculture Environments
edited by Eduardo Quiroz-Gúzman
submission deadline 30 Apr 2025 | 2 articles | Viewed by 2766 | Submission Open
Keywords: bacterial pathogens; bacterial pathogen database; aquaculture; disease; bacterial fish pathogens; bacterial shrimp pathogens; bacterial adhesion; bacterial colonization; virulence factor; pathogen– host interaction
(This special issue belongs to the Section Environmental Microbiology)
Current Developments in Urogenital Infections submission deadline 30 Apr 2025 | 1 articles | Viewed by 2761 | Submission Open
Keywords: urinary tract infection; genital tract infection; sexually transmitted disease
(This special issue belongs to the Section Medical Microbiology)
Fungal Metabolites: Powering Pharmacological and Agricultural Frontiers
edited by and
submission deadline 30 Apr 2025 | 3 articles | Viewed by 2706 | Submission Open
Keywords: fungi; fungal metabolites; polysaccharides; pharmacological applications; agricultural innovations; crop productivity; stress tolerance
(This special issue belongs to the Section Environmental Microbiology)
Microorganisms from Terrestrial Extreme Environments: Exploration and Exploitation Towards Sustainable Plant Production
edited by Pablo Cornejo, and Catalina Vidal
submission deadline 30 Apr 2025 | 1 articles | Viewed by 2685 | Submission Open
Keywords: global climate change; hyper-arid environments; salinity; drought; polluted soils; plant-growth-promoting microorganisms
(This special issue belongs to the Section Environmental Microbiology)
The Molecular Epidemiology of Infectious Diseases
edited by Jonathan Hon-kwan Chen
submission deadline 30 Apr 2025 | 3 articles | Viewed by 2519 | Submission Open
Keywords: molecular epidemiology; infectious diseases; outbreak investigations; transmission; genotyping; disease control
(This special issue belongs to the Section Public Health Microbiology)
Latest Research on Clostridioides difficile
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 2449 | Submission Open
Keywords: Clostridioides difficile; biology; epidemiology; pathogenicity; detection; treatment; infection control
(This special issue belongs to the Section Medical Microbiology)
Microbial Applications for Sustainable Resource and Energy Recovery
edited by Yuriy Litti
submission deadline 30 Apr 2025 | 1 articles | Viewed by 2111 | Submission Open
Keywords: anaerobic digestion; dark fermentation; biogas; biorefinery; microbial community; metabolic engineering; biochemicals; chain elongation
(This special issue belongs to the Section Environmental Microbiology)
Prevention and Treatment of Healthcare-Associated Infections
edited by José-Artur Paiva
submission deadline 30 Apr 2025 | 1 articles | Viewed by 1447 | Submission Open
Keywords: risk analysis and triage; epidemiological surveillance; bundle-approach and behavior interventions; fast microbiological diagnosis; clostridioides difficille; carbapenem-resistant Enterobacterales; multidrug-resistant Pseudomonas; methicillin-resistant Staphylococcus aureus; candida auris; best use of new antibiotics
(This special issue belongs to the Section Medical Microbiology)
Microbial Solutions for a Sustainable Alcoholic Beverages Supply Chain submission deadline 30 Apr 2025 | 1 articles | Viewed by 1316 | Submission Open
Keywords: wine; beer; spirits; alcoholic beverages; sustainable food chain; microbial solutions
(This special issue belongs to the Section Microbial Biotechnology)
The Role of Lactic Acid Bacteria and Their Metabolites in Fermented Foods: From Mechanisms of Action to Technological Applications and Human Health Effects
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 1300 | Submission Open
Keywords: LAB; fermentation; fermented foods; metabolites; health benefits
(This special issue belongs to the Section Food Microbiology)
Advances in Microbial Cell Factories, 3rd Edition
edited by and
submission deadline 30 Apr 2025 | 3 articles | Viewed by 1224 | Submission Open
Keywords: sustainability; biotechnology; bioengineering; biocatalysis; fermentation
(This special issue belongs to the Section Microbial Biotechnology)
Microbial Food Webs
edited by Wuchang Zhang
submission deadline 30 Apr 2025 | 1 articles | Viewed by 1199 | Submission Open
Keywords: microbial food web; ciliates; flagellates; prokaryote; taxonomy; ecology; global change
(This special issue belongs to the Section Environmental Microbiology)
Intestinal Dysbiosis: 2nd Edition
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 1174 | Submission Open
Keywords: gut flora; intestinal flora; dysbiosis; inflammatory bowel diseases; leaky gut
(This special issue belongs to the Section Gut Microbiota)
Earth Systems: Shaped by Microbial Life submission deadline 30 Apr 2025 | 1 articles | Viewed by 1092 | Submission Open
Keywords: microbial diversity; extreme habitats; novel microorganisms; bioprospecting; anthropogenic impact; dark matter
(This special issue belongs to the Section Environmental Microbiology)
Gut Microbiota: Metagenomics to Study Ecology, 2nd Edition
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 884 | Submission Open
Keywords: metagenomics; ecology; multi-omics; metagenomic assembled genomes; function; host– microbe interactions; behavior; local adaptation; biodiversity conservation
(This special issue belongs to the Section Gut Microbiota)
Healthcare-Associated Infections and Antimicrobial Therapy—2nd Edition submission deadline 30 Apr 2025 | 1 articles | Viewed by 787 | Submission Open
Keywords: clinical microbiology; healthcare-associated infections; antimicrobial therapy
(This special issue belongs to the Section Medical Microbiology)
Genomics and Bioinformatics Tools in Host-Pathogen Interactions
edited by Allegra Via, and
submission deadline 30 Apr 2025 | Viewed by 582 | Submission Open
Keywords: host– pathogen interactions; bioinformatics; genomics; proteomics; structural bioinformatics; functional genomics; immunoinformatics; next-generation sequencing; pathway analysis; machine learning applications
(This special issue belongs to the Section Molecular Microbiology and Immunology)
Inflammatory Bowel Disease (IBD) and Microbiome: Etiopathogenesis, Diagnosis, and Therapeutic Advances
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 540 | Submission Open
Keywords: inflammatory bowel disease; microbiome-immune interactions; microbiome modulation; gut– brain axes; gut– liver axes  
(This special issue belongs to the Section Medical Microbiology)
Bridging Disciplines: Extremophiles and Their Implications for Astrobiology
edited by
submission deadline 30 Apr 2025 | Viewed by 519 | Submission Open
Keywords: extremophile microbiology; astrobiology; terrestrial analogues; microbial adaptation; evolutionary biology; metagenomics; biogeochemical cycles; technological innovations; astrobiology missions; space exploration implications
(This special issue belongs to the Section Environmental Microbiology)
Feature Papers in Plant–Microbe Interactions in North America
edited by
submission deadline 30 Apr 2025 | 1 articles | Viewed by 442 | Submission Open
Keywords: plant– microbe interaction; plant-associated microbes; biotic and abiotic stresses; agricultural sustainability
(This special issue belongs to the Section Plant Microbe Interactions)
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