Microorganisms

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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Microbiomes and Host Health: The Importance of Host Self-Completion with Microbiota

edited by

Rodney R. Dietert

submission deadline 31 Aug 2026 | Viewed by 85 | Submission Open

Keywords: chronic disease; colonization resistance; pathogens; and infections; systems biology; metabolism; physiology; and function; microbiome-first health; microbiota; microbial dysbiosis; life stages; domestic; agricultural; and environmental species; microbiome-toxic drugs and chemicals

(This special issue belongs to the Section Microbiomes)

State-of-the-Art Plant Microbe Interactions in South Korea (2025, 2026)

edited by

Taegun Seo

submission deadline 31 Aug 2026 | Viewed by 83 | Submission Open

Keywords: disease protection; endophytes; endosymbiosis; epiphytes; lichens; mycorrhizae; nitrogen fixation; pathogens; pathogenesis; phosphate solubilization; rhizobacteria; rhizophagy cycle; stress tolerance; symbiosis

(This special issue belongs to the Section Plant Microbe Interactions)

State-of-the-Art Plant Microbe Interactions in Japan

edited by

Yasuhiro Ishiga

and

Nanami Sakata

submission deadline 31 Aug 2026 | Viewed by 78 | Submission Open

(This special issue belongs to the Section Plant Microbe Interactions)

From Plants to Microbes: Bioprospecting Phytobiotics for Next-Generation Natural Products

edited by

Panagiota Stathopoulou

and

Elias Asimakis

submission deadline 31 Aug 2026 | Viewed by 56 | Submission Open

Keywords: phytobiotics; biopesticides; antimicrobial activity; antioxidant activity; plant extracts; antibiotic resistance; cytotoxicity; sustainable agriculture; sustainable aquaculture; environmentally friendly; bioprospecting

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Biotechnological Advances in Cold-Adapted Marine Microorganisms

edited by

Ermenegilda Parrilli

and

Concetta Lauro

submission deadline 31 Aug 2026 | Viewed by 47 | Submission Open

Keywords: cold-adapted microorganisms; extremophiles; polar microbiology; marine biotechnology; cold-active enzymes; bioprospecting; secondary metabolites; environmental adaptation; marine natural products

Research on Diseases of Aquatic Organisms, Second Edition

edited by

Guilherme Tavares

submission deadline 31 Aug 2026 | Viewed by 31 | 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)

Role of Vaginal Microbiome in Women's Health

edited by Xiang Hong

submission deadline 31 Aug 2026 | Viewed by 27 | Submission Open

Keywords: vaginal microbiome; women's health; pregnancy complications; menopause; infertility Lactobacillus; Gardnerella vaginalis

(This special issue belongs to the Section Microbiomes)

Recent Advances in Physiology and Metabolism of Lactobacilli: Potential Applications in Sustainable Agri-Food System

edited by

Teresa Zotta

and Marilisa Giavalisco

submission deadline 31 Aug 2026 | Viewed by 17 | Submission Open

Keywords: lactobacilli; metabolism; food ingredients; biopolymers; sustainability; agri-food wastes

(This special issue belongs to the Section Food Microbiology)

Microbial Safety and Molecular Detection in Food Production and Processing

edited by

Julio Parra-Flores

submission deadline 15 Sep 2026 | Viewed by 363 | Submission Open

Keywords: microbiological quality of foods; pathogens and opportunistic foodborne pathogens; molecular epidemiology of foodborne illness; molecular characterization of foodborne pathogens; biofilm; sanitizers; and control of pathogens in food production plants; virulence factors; antibiotic resistance

(This special issue belongs to the Section Food Microbiology)

From Sewers to Solutions: Wastewater Surveillance in the Fight Against Antimicrobial Resistance

edited by Mohamed M. H. Abdelbary,

Guido Werner

and Kazunari Sei

submission deadline 30 Sep 2026 | 3 articles | Viewed by 2345 | Submission Open

Keywords: AMR pathogens in wastewater; carbapenem-resistant enterobacterales; wastewater resistome; culture-based detection; molecular methodologies for pathogens detection; digital PCR; hospital and urban Wastewater; wastewater microbiome; mobile genetic elements; AMR plasmids

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Oral Microbiomes and Host Health

edited by

Lucinda J. Bessa

submission deadline 30 Sep 2026 | 2 articles | Viewed by 2179 | Submission Open

Keywords: oral microbiome; oral diseases; systemic diseases; dysbiosis; host– microbe interactions; microbial biomarkers

(This special issue belongs to the Section Microbiomes)

Bacterial Infections and Antimicrobial Resistance

edited by Weihui Li

submission deadline 30 Sep 2026 | Viewed by 140 | Submission Open

Keywords: antimicrobial resistance; Mycobacterium tuberculosis; bacterial pathogenesis; multidrug-resistant bacteria; antibiotic resistance mechanisms; genomics; novel therapeutics; biofilm; diagnostics; public health

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Gut Microbiota Axes and Human Health

edited by

Peter C. Konturek

submission deadline 1 Oct 2026 | Viewed by 97 | Submission Open

Keywords: irritable bowel syndrome; chronic inflammatory bowel diseases; chronic liver diseases; skin diseases; cancer immuntherapy; chronic diseaes; autoimmune diseases; gut metabolites; gut barrier disturbance; allergic diseases; post-COVID-19; chronic lung diseases

(This special issue belongs to the Section Gut Microbiota)

Microorganisms in Silage—2nd Edition

edited by

Musen Wang

Marcia De Oliveira Franco

Qing Zhang

Siran Wang

and

Chunsheng Bai

submission deadline 31 Oct 2026 | 1 articles | Viewed by 325 | Submission Open

Keywords: ensiling; microbial community; microbial contamination; functional lactic acid bacteria; fermented feed

(This special issue belongs to the Section Food Microbiology)

New Crucial Pathogens and Antimicrobial Resistance in Animals, Communities, Hospitals and the Environment in the One Health Context

edited by Xuewen Li

submission deadline 31 Oct 2026 | Viewed by 176 | Submission Open

Keywords: antimicrobial resistance; one health; emerging contaminants; evolution; mutation

(This special issue belongs to the Section Antimicrobial Agents and Resistance)

Microbial Fuel Cells: Innovations in Bioenergy Conversion

edited by John Greenman and Robin Thorn

submission deadline 31 Oct 2026 | Viewed by 100 | Submission Open

Keywords: MFC; PMFC; MDC; bioelectricity; bioremediation; microbial biofilms; biofilm electrodes; physical and chemical sensors; elemental molecular recycling

(This special issue belongs to the Section Microbial Biotechnology)

Hydrothermal Microorganisms

edited by

Erika Arcadi

submission deadline 30 Nov 2026 | Viewed by 77 | Submission Open

Keywords: extremophiles; chemosynthesis; thermophiles; hydrothermal microbial communities; symbiosis; biohazard

(This special issue belongs to the Section Environmental Microbiology)

Pathogenesis, Virulence and Host Responses to Infections by Candida spp

edited by