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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 polices and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

Open for Submission

State-of-the-Art Gut Microbiota in the USA (2026)

Guest Editors: Carl Gordon Johnston, Todd Riley Callaway
Viewed by 24

Deadline: 30 June 2026

Open for Submission

Gut Microbiota in Health and Diseases: The Role of Pro-/Pre-/Syn-/Post-Biotics in the Gut–Liver–Brain Axis

Guest Editors: Mohamad Khalil, Piero Portincasa
2 articles | Viewed by 17,709

Deadline: 15 June 2026

Open for Submission

Role of Dietary Nutrients in the Modulation of Gut Microbiota

Guest Editors: Inês Brandão, Joana Ferreira-Gomes
3 articles | Viewed by 8,861

Deadline: 31 May 2026

Open for Submission

Intestinal Dysbiosis: 2nd Edition

Guest Editor: Giuseppe Merra
1 article | Viewed by 3,525

Deadline: 31 May 2026

Open for Submission

Gut Microbiota and Human Health: From Mechanisms to Therapeutic Frontiers

Guest Editor: Jun-Hyung Cho
Viewed by 94

Deadline: 31 May 2026

Open for Submission

Interactions Between Gut Microbiota and Its Host in Health and Disease

Guest Editor: Yunhe Fu
Viewed by 37

Deadline: 31 May 2026

Open for Submission

Role of the Gut Microbiota in Children’s Health

Guest Editor: Maurizio Mennini
Viewed by 29

Deadline: 31 May 2026

Open for Submission

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

Guest Editor: Zhenjun Zhu
1 article | Viewed by 587

Deadline: 31 May 2026

Open for Submission

Probiotics and Gut Microbiome Dynamics in Health and Disease

Guest Editors: Anastasios Nikolaou, Margaritis Tsifintaris, Ilias Tsochantaridis
Viewed by 27

Deadline: 31 May 2026

Open for Submission

Interactions Between Intestinal Microbiota and Host

Guest Editor: Kaline Arnauts
Viewed by 18

Deadline: 31 May 2026

Open for Submission

Gut Microbiota: Metagenomics to Study Ecology, 2nd Edition

Guest Editor: Lifeng Zhu
4 articles | Viewed by 4,913

Deadline: 30 April 2026

Open for Submission

Probiotics, Gut Microbiota, and Health

Guest Editors: Massimiliano Marazzato, Claudio de Simone
1 article | Viewed by 1,894

Deadline: 30 April 2026

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Microorganisms - ISSN 2076-2607