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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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Microbial Biotechnology: The Biodiversity, Properties and Benefits of Microorganisms in Medical, Clinical, Food and Environmental Fields, 2nd Edition

edited by

Marcelo Andrés Umsza-Guez

and

Karina Teixeira Magalhães-Guedes

submission deadline 30 Apr 2026 | Viewed by 20 | Submission Open

Keywords: microbial biotechnology; microorganism diversity; biotechnological applications; functional foods; pathogen control

(This special issue belongs to the Section Microbial Biotechnology)

Advances in Host Gut Microbiota—2nd Edition

edited by

Jean-Paul Motta

and Marion Garofalo

submission deadline 30 Apr 2026 | Viewed by 17 | Submission Open

Keywords: host– microbiota interactions; infectious and inflammatory gut disorders; microbiota ageing; intestinal epithelium

(This special issue belongs to the Section Gut Microbiota)

Advancements in Pathogenic Bacteria: Detection, Genomic Analysis, and Antibiotic Resistance—2nd Edition

edited by Vlademir Vicente Cantarelli

submission deadline 30 Apr 2026 | Viewed by 15 | Submission Open

Keywords: bacterial infections; immunocompromised patients; identification methods; mass spectrometry; genomic analysis; antimicrobial resistance (AMR); faster detection methods; pathogenic bacteria; new bacterial pathogens

(This special issue belongs to the Section Medical Microbiology)

Phloem Localized Insect Transmitted Bacteria Associated with Plant Diseases (2nd Edition)

edited by

Assunta Bertaccini

submission deadline 30 Apr 2026 | Viewed by 13 | Submission Open

Keywords: phytopathogenic bacteria; ‘ Candidatus Phytoplasma’ species; ‘ Candidatus Liberibacter’ species and subspecies; plant disease; prevention; management; detection; identification; insect vectors

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

Virulence-Associated Genes, Pathogenesis and Immunoevasion Mechanisms of African Swine Fever Virus

edited by

Lihua Wang

submission deadline 30 Apr 2026 | Viewed by 2 | Submission Open

Keywords: African swine fever; African swine fever virus; virulence-associated gene; pathogenesis; immunoevasion; antiviral strategy; vaccine

(This special issue belongs to the Section Veterinary Microbiology)

The Biology of Host–Candida Interactions

edited by

Luca Spaggiari

and

Eva Pericolini

submission deadline 15 May 2026 | Viewed by 44 | Submission Open

Keywords: Candida species; host– pathogen interactions; fungal pathogenesis; host immune response; fungal morphogenesis; biofilm formation; antifungal resistance; microbiota; candidiasis; translational research

(This special issue belongs to the Section Medical Microbiology)

Borreliosis and Other Tick-Borne Diseases in the Northern and Southern Hemispheres, Second Edition

edited by

Giusto Trevisan

submission deadline 30 May 2026 | Viewed by 25 | Submission Open

Keywords: Lyme disease; Borrelia; diagnosis; tick-borne infections; relapsing fever

(This special issue belongs to the Section Medical Microbiology)

Microbiome-Driven Agriculture: Transforming Sustainability and Resilience Through Functional Microbial Insights and Metagenomics

edited by

Nazrul Islam

submission deadline 31 May 2026 | 7 articles | Viewed by 19199 | Submission Open

Keywords: microbiome; agriculture; metagenomics

(This special issue belongs to the Section Environmental Microbiology)

Ticks, Tick Microbiome and Tick-Borne Diseases

edited by

Yun Sang Cho

submission deadline 31 May 2026 | 4 articles | Viewed by 8744 | Submission Open

Keywords: ticks; tick-borne diseases; microbiome; tick control; tick-borne pathogens

(This special issue belongs to the Section Public Health Microbiology)

Understanding the Interactions Between HIV and Other Infections and Their Impact on Immune Function

edited by

Justyna Dominika Kowalska

and Botond Lakatos

submission deadline 31 May 2026 | 3 articles | Viewed by 8657 | Submission Open

Keywords: antimicrobials; natural products; anti-biofilm strategies; anti-microbial resistance; drug delivery; formulations

(This special issue belongs to the Section Medical Microbiology)

The Microbiome of the Urinary Tract: A Balance Between Eubiosis and Dysbiosis

edited by Michael Chrisofos and

Ilias Giannakodimos

submission deadline 31 May 2026 | 3 articles | Viewed by 5990 | Submission Open

Keywords: microbiome; urinary tract infections; eubiosis and dysbiosis

(This special issue belongs to the Section Medical Microbiology)

Role of Dietary Nutrients in the Modulation of Gut Microbiota

edited by

Inês Brandão

and Joana Ferreira-Gomes

submission deadline 31 May 2026 | 3 articles | Viewed by 5751 | Submission Open

Keywords: gut microbiota; diet; immunomodulation; dietary intervention studies

(This special issue belongs to the Section Gut Microbiota)

Bacterial Pathogenesis and Host Immune Responses

edited by Zhihui Cheng

submission deadline 31 May 2026 | 5 articles | Viewed by 5243 | Submission Open

Keywords: host– pathogen interactions; pathogenic bacteria; pathogenesis; bacterial infections; disease mechanisms; host immune responses; inflammatory responses ; vaccine development; antimicrobial resistance; therapeutic strategies

(This special issue belongs to the Section Molecular Microbiology and Immunology)

Microbial Communities and Nitrogen Cycling

edited by Chen Ye,

Yu Gong

and Hao Liao

submission deadline 31 May 2026 | 4 articles | Viewed by 5066 | Submission Open

Keywords: microbial communities; nitrogen cycle; biogeochemical processes; nitrogen fixation; nitrification; denitrification; ammonification; ecosystem health; environmental changes; microbial diversity

(This special issue belongs to the Section Environmental Microbiology)

Microbial Evolutionary Genomics and Bioinformatics

edited by

Agostinho Antunes

submission deadline 31 May 2026 | 2 articles | Viewed by 3958 | Submission Open

Keywords: microbiomes genomics; bacteria genomics diversity and evolution; irus genomics and evolution; microbial pathogenicity genomics; bioinformatics advances in microbial research; microbial-genome-encoded bioactive molecules

(This special issue belongs to the Section Microbiomes)

Emerging Diseases in Aquatic Animals

edited by Tran Ngoc Tuan and

Nguyen Dinh-Hung

submission deadline 31 May 2026 | 1 articles | Viewed by 3508 | Submission Open

Keywords: emerging diseases; aquatic animal health; novel pathogens; disease outbreaks; diagnostic innovation

(This special issue belongs to the Section Veterinary Microbiology)

Intestinal Dysbiosis: 2nd Edition

edited by

Giuseppe Merra

submission deadline 31 May 2026 | 1 articles | Viewed by 3276 | Submission Open

Keywords: gut flora; intestinal flora; dysbiosis; inflammatory bowel diseases; leaky gut

(This special issue belongs to the Section Gut Microbiota)

Soil Microbial Carbon/Nitrogen/Phosphorus Cycling: 2nd Edition

edited by Dan Xiao and Yinhang Xia

submission deadline 31 May 2026 | 2 articles | Viewed by 1840 | Submission Open

Keywords: soil microbiome; nutrient cycling; soil micro-food web; land use change; ecosystem restoration; agricultural management

(This special issue belongs to the Section Environmental Microbiology)

Harnessing Microbial Power for a Sustainable Future

edited by

Emanuel Vamanu

and Laura Dorina Dinu

submission deadline 31 May 2026 | 2 articles | Viewed by 1677 | Submission Open

Keywords: microbes; sustainability; agricultural productivity; renewable energy; climate change; public health; circular economy; genetically engineered microbes; biopharmaceuticals; microbial biotechnology

(This special issue belongs to the Section Microbial Biotechnology)

Microbial Electrolysis Cells and Microbial Fuel Cells

edited by Shuyao Wang

submission deadline 31 May 2026 | 1 articles | Viewed by 641 | Submission Open

Keywords: bioelectrochemical systems; microbial fuel cell; microbial electrolysis cell; pollution control; cleaner energy production

(This special issue belongs to the Section Microbial Biotechnology)

Pathogenesis and Host Response Modulation by Porphyromonas gingivalis

edited by

Nityananda Chowdhury

submission deadline 31 May 2026 | Viewed by 391 | Submission Open

Keywords: Porphyromonas gingivalis; functional genomics; host-pathogen interactions; pathogenesis; immune response

(This special issue belongs to the Section Medical Microbiology)

Microbial Cell Factories for Sustainable Biomass Protein Production

edited by

Haitao Yu

and

Weiwei Wang

submission deadline 31 May 2026 | Viewed by 133 | Submission Open

Keywords: feed protein; animal science and biotechnology; agricultural synthetic biology; synthetic microbiomes; microbial cell factories; solid-state fermentation; industrial and agricultural waste; microbial genetics and breeding

(This special issue belongs to the Section Microbial Biotechnology)

Microbial Diversity and Ecology in Different Environments

edited by

Diogo Neves Proença

and

Maria Carolina Quecine

submission deadline 31 May 2026 | Viewed by 130 | Submission Open

Keywords: microbial diversity; environmental microbiology; microbiomes; metagenomics; microbial ecology; biotechnological applications; functional genomics; extremophiles; plant-microbe interactions; soil microbiology; marine microbiology; biodegradation; bioactive compounds

(This special issue belongs to the Section Environmental Microbiology)

Gut Microbiota and Human Health: From Mechanisms to Therapeutic Frontiers

edited by

Jun-Hyung Cho

submission deadline 31 May 2026 | Viewed by 79 | Submission Open

Keywords: gut microbiota; host– microbe interaction; Helicobacter pylori; microbiome metabolites; gut– brain axis; probiotics and prebiotics; fecal microbiota transplantation

(This special issue belongs to the Section Gut Microbiota)

Human Airway Microbiome and Immunity

edited by

Zhang Wang

submission deadline 31 May 2026 | Viewed by 71 | Submission Open

Keywords: respiratory microbiome; immune response; microbiome-host interaction; metagenomics; multi-omics; gut-lung axis; chronic respiratory diseases

(This special issue belongs to the Section Microbiomes)

AI-Driven Insights into Microbial Research: From Data Analysis to Predictive Modeling

edited by

Chien-Sen Liao

submission deadline 31 May 2026 | Viewed by 50 | Submission Open

Keywords: microbiology; artificial intelligence; deep learning; machine learning; microbial genomics; microbiome analysis; data-driven research; predictive modeling; automated image recognition; AI applications in life sciences

Antimicrobial Resistance and Virulence of Foodborne Pathogens Resistance

edited by

Adriana Morar

and

Alexandra Ban-Cucerzan

submission deadline 31 May 2026 | Viewed by 36 | Submission Open

Keywords: antimicrobial resistance; foodborne pathogens; one health; virulence factors; biofilm formation

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

Halophiles

edited by

Cristina Sánchez-Porro

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

Keywords: obligate halophiles; bacteria; archaea; taxonomy and biodiversity; biotechnology; genomics; metagenomics; physiology and metabolism; hypersaline habitats

(This special issue belongs to the Section Environmental Microbiology)

Interactions Between Gut Microbiota and Its Host in Health and Disease

edited by

Yunhe Fu

submission deadline 31 May 2026 | Viewed by 26 | Submission Open

Keywords: gut-host crosstalk; microbiota dysbiosis; immune regulation; metabolic symbiosis; disease pathogenesis

(This special issue belongs to the Section Gut Microbiota)

Phages: From Biology to Application in Medicine and Biotechnology

edited by

Novella Cesta

and Antonia Scobie

submission deadline 31 May 2026 | Viewed by 25 | Submission Open

Keywords: bacteriophages; phage therapy; phage technology; bacteriophages and biocontrol; lysins; phage-derived proteins

(This special issue belongs to the Section Microbial Biotechnology)

HIV-Associated Neurocognitive Disorders: Mechanisms, Models, and Emerging Therapeutic Frontiers

edited by Hina Singh

submission deadline 31 May 2026 | Viewed by 23 | Submission Open

Keywords: neuroinflammation; HIV-associated neurocognitive disorders (HANDs); host– virus interactions; astrocyte– microglia crosstalk; viral reservoirs; neurodegeneration

(This special issue belongs to the Section Medical Microbiology)

Advances in Microbial Adaptation and Evolution

edited by

Misty D. Thomas

and

Joseph L. Graves Jr.

submission deadline 31 May 2026 | Viewed by 22 | Submission Open

Keywords: microbial adaptation; experimental evolution; regulatory networks; two-component systems; stress response; pleiotropy; epistasis; antimicrobial resistance; genomic evolution; phenotype-environment interactions

(This special issue belongs to the Section Environmental Microbiology)

Mycolata (Corynebacteria, Rhodococci and Mycobacteria): Good Servants but Bad Masters

edited by

Miroslav Pátek

Riccardo Manganelli

and

Maria S. Kuyukina

submission deadline 31 May 2026 | Viewed by 20 | Submission Open

Keywords: Rhodococcus; Corynebacterium; Mycobacterium; biosynthesis; biodegradation; biotechnological applications; pathogen

(This special issue belongs to the Section Microbial Biotechnology)

Infections in Solid Organ Transplant Recipients: Epidemiology, Pathogenesis, and Clinical Management

edited by

Biagio Pinchera

submission deadline 31 May 2026 | Viewed by 20 | Submission Open

Keywords: solid organ transplant; transplant-associated infections; bacterial infections; viral infection; fungal infections; antimicrobial resistance; infection management; epidemiology

(This special issue belongs to the Section Medical Microbiology)

Microbiome in Fish and Their Living Environment, Second Edition

edited by

Yongjun Chen

and

Gang Yang

submission deadline 31 May 2026 | Viewed by 19 | Submission Open

Keywords: fish species; gut microbiome; dietary modification; water environment; immunity

(This special issue belongs to the Section Veterinary Microbiology)

Phytoplankton Faced with Emergent Pollutants

edited by

Katia Comte

and Stéphanie Fayolle

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

Keywords: freshwater and marine ecosystems; photosynthetic protists; microalgae; diatoms; cyanobacteria; dinoflagellates; emergent pollutions; PFAS; PPCPs (pharmaceuticals & personal care products); nanoplastics; radionuclides; “ OMICS” approaches; ecophysiology; stress responses; bioaccumulation; biotransformation

(This special issue belongs to the Section Environmental Microbiology)

Arboviral and Emerging Infectious Diseases in the Tropics: Challenges in Molecular Evolution, Pathogenesis, and Surveillance

edited by Marcos Lázaro Moreli

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

Keywords: arboviruses; emerging pathogens; tropical diseases; molecular epidemiology; One Health; genomic surveillance; climate change

(This special issue belongs to the Section Public Health Microbiology)

Role of the Gut Microbiota in Children’s Health

edited by Maurizio Mennini

submission deadline 31 May 2026 | Viewed by 11 | Submission Open

Keywords: microbiota; pediatrics; probiotics; prebiotics; postbiotics; human milk oligosaccharides; fecal microbiota transplantation; gut health; nutrition; immune development

(This special issue belongs to the Section Gut Microbiota)

Functional Dietary Components, Gut Microbiota, and Host Health: Interaction Mechanisms and Innovative Product Development

edited by

Zhenjun Zhu

submission deadline 31 May 2026 | Viewed by 10 | Submission Open

Keywords: prebiotics; probiotics; postbiotics; gut microbiota; host health

(This special issue belongs to the Section Gut Microbiota)

Global Perspectives and Contributions to the Understanding of Human Papillomavirus and Associated Diseases

edited by

Anna Beltrame

submission deadline 1 Jun 2026 | Viewed by 192 | Submission Open

Keywords: human papillomavirus (HPV); genotypes; infection; HPV-related cancers; HPV vaccines; epidemiology; prevention

(This special issue belongs to the Section Medical Microbiology)

The Diagnosis, Treatment, Prevention, and Epidemiology of Infectious Diseases in Livestock: A One Health Approach

edited by

Ricardo Barbosa Lucena

submission deadline 2 Jun 2026 | Viewed by 203 | Submission Open

Keywords: infectious agents; pathogenesis; molecular diagnostics; proteomics; antimicrobial resistance; epidemiological surveillance; vaccines; therapeutic strategies; zoonoses

(This special issue belongs to the Section Veterinary Microbiology)

Harnessing Microbes for Crop Protection and Fertilization

edited by

Humayun Javed

submission deadline 30 Jun 2026 | 2 articles | Viewed by 3739 | Submission Open

Keywords: microbial biocontrol; plant– microbe interactions; biofertilizers; sustainable agriculture; soil microbiome; entomopathogenic fungi; plant growth-promoting rhizobacteria (PGPR); nitrogen fixation; mycorrhizal fungi; biopesticides; microbial formulations; eco-friendly pest management; microbial secondary metabolites; soil fertility enhancement; climate-resilient farming; microbial inoculants; biological pest control; sustainable fertilization; microbial diversity; crop protection

(This special issue belongs to the Section Microbial Biotechnology)

Oral Bacteria, Viruses, and Fungi: Oral Health, Disease, and Systemic Links

edited by

Maria Pia Di Palo

Federica Di Spirito

and Nicoletta Capuano

submission deadline 30 Jun 2026 | 3 articles | Viewed by 1778 | Submission Open

Keywords: oral microbiota; host– microbe interactions; antimicrobial resistance; therapeutic approaches; probiotics

(This special issue belongs to the Section Medical Microbiology)

Detection Techniques and Assay Development for Bacterial Susceptibility and Resistance

edited by Pavel Ivanoff Reyes

submission deadline 30 Jun 2026 | 1 articles | Viewed by 551 | Submission Open

Keywords: antimicrobial treatments; chemical assays; susceptibility; resistance

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

Advances in Fundamentals and Application of Microbial Industrial Biotechnology

edited by

J.H. de Winde

and

Arthur Ram

submission deadline 30 Jun 2026 | Viewed by 145 | Submission Open

Keywords: microbial industrial biotechnology; industrial microbiology; applied microbiology

(This special issue belongs to the Section Microbial Biotechnology)

State-of-the-Art Medical Microbiology in the USA

edited by Maria E. Aguero-Rosenfeld

submission deadline 30 Jun 2026 | Viewed by 119 | Submission Open

Keywords: medical microbiology; medical fungi; medical bacterial

(This special issue belongs to the Section Medical Microbiology)

Exploration of Marine Microbial Resources

edited by

Haibo Zhou

submission deadline 30 Jun 2026 | Viewed by 116 | Submission Open

Keywords: marine microorganisms; natural products; biosynthetic mechanism; genome mining; synthetic biology; microbial biotechnology

(This special issue belongs to the Section Microbial Biotechnology)

Ecology and Genetics of Medically Important Fungi

edited by

Caroline Maria Marcos

Liliana Scorzoni

and

Haroldo de Oliveira

submission deadline 30 Jun 2026 | Viewed by 43 | Submission Open

Keywords: medical mycology; fungal ecology; molecular genetics of pathogenic fungi; antifungal resistance; fungal omics; host– pathogen interaction; environmental adaptation; fungal virulence

(This special issue belongs to the Section Medical Microbiology)

Interactions Between Parasites/Pathogens and Vectors, Second Edition

edited by Norman Ratcliffe and

Günter A. Schaub

submission deadline 30 Jun 2026 | Viewed by 37 | Submission Open

Keywords: arboviruses; vectors; insects

(This special issue belongs to the Section Public Health Microbiology)

Poultry Pathogens and Poultry Diseases, 3rd Edition

edited by