Justine Dees, PhD

Joyful Microbe

Science EN ↓ 42 episodes

All about the microbes we encounter in our daily lives (with or without realizing it). The Joyful Microbe podcast helps you see how bacteria, fungi, viruses, archaea, and protozoa live everywhere around us and constantly impact our lives. Host Justine Dees, PhD talks to microbiology experts of all kinds to share the amazing variety of these fascinating microorganisms. Usually, we think of infections, but microbiology is SO MUCH MORE THAN THAT.

Author

Justine Dees, PhD

Category

Science

Podcast website

redcircle.com

Latest episode

Oct 25, 2025

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Episodes

Sharing the Story of Agar and Fanny Angelina Hesse: Dr. Corrado Nai 25.10.2025

Agar is a crucial tool used daily in most microbiologists’ work. It’s the stuff that goes in Petri dishes for microbes to grow on. But many microbiologists are unaware of how this substance became so important in the field. A woman named Fanny Angelina Hesse played a significant role in this story, yet she remains largely unknown in microbiology. Dr. Corrado Nai is making it his mission to change...

Are Oysters Safe to Eat Raw? Understanding the Microbes and Risks: Dr. Rachel Diner 21.07.2025

Oysters can be risky to eat raw, but what microbes are actually responsible? Is there more to it than just chance? In this episode, I talk with Dr. Rachel Diner, Assistant Professor at the University of Memphis researching aquatic microbes, to find out. Here, we discuss the hidden world of bacteria in oysters, exploring the roles these organisms play in the environment and their impact on human he...

The Impact of Alcohol on the Gut Microbiome: Andrew Day 27.11.2024

Can drinking alcohol impact our gut health? It sure can. Since our gut health is so crucial for our overall health, this episode focuses on the connection between alcohol consumption and the microbial component of our gut health, the gut microbiome. In this episode, I spoke with microbiology researcher Andrew Day about how alcohol disrupts the gut microbiome and mycobiome — the fungal community in...

Science-Backed Approaches to Gut Health: Kristina Campbell 31.10.2024

Gut health has become a major topic in wellness, influencing everything from grocery choices to discussions on social media. Research increasingly shows the gut microbiome’s role in digestion, immunity, and even mood. But with so much information available, it’s hard to separate science from trend. In this episode, I talk with Kristina Campbell, a science writer known for her expertise in the micr...

How Microbes Are Useful in Agriculture: Dr. Barry Goldman 30.09.2024

Have you ever stopped to think about the teeming world hidden beneath your feet? It's not just dirt down there; it's a vibrant ecosystem teeming with microbes! These unseen organisms play a critical role in our daily lives, impacting everything from the food we eat to the air we breathe. In this episode, we'll delve into the fascinating world of soil microbes and explore how they'r...

Coloring the Microbial World: Drs. Sarah Wettstadt and Noémie Matthey 27.08.2024

Coloring books aren't just for kids anymore. In fact, one unique coloring book is bringing the fascinating world of bacteria to life for all ages. In this Joyful Microbe podcast episode, we’re exploring "Coloured Bacteria from A to Z" with the scientists behind this delightful educational resource. Whether you're a parent looking to spark your child's interest in science, a tea...

Making Microscopy Accessible with Foldscope: Holly Stuart 31.07.2024

Understanding microbes is an essential part of appreciating the natural world and our environment. But exploring microbiology using a traditional microscope comes with the potential barriers of cost and complexity, sometimes preventing hands-on learning experiences in schools and communities. Imagine having the power to explore the microscopic world with an affordable, simple, and durable microsco...

Degrading Plastic Through the Power of Microbes: Angie Beckett 02.07.2024

Plastic waste in our oceans is a significant problem, but some bacteria might offer a solution. Did you know that certain bacteria can break down plastic? Plastic pollution affects wildlife and can even enter our food and water. As plastic production increases, finding better ways to manage this material is essential. Current recycling methods are not very efficient. Most plastic ends up in landfi...

Lichen Basics: Dr. Jessica Allen 29.05.2024

Have you ever noticed the colorful growths on trees and rocks but weren't sure what they were? Lichens are all around us yet often overlooked. They play important roles in ecosystems and can even indicate air quality. Many people don't fully understand these symbiotic organisms or appreciate their significance. In this episode, you'll learn about the fascinating world of lichens from l...

Plant Pathogen Lettuce Downy Mildew: Dr. Kelsey Wood 25.04.2024

Have you ever noticed little white fluffy spots or yellowish patches on your lettuce at the grocery store? This could be downy mildew, a microbe that infects lettuce and other leafy greens. This microbe might not be well-known, but it's of great importance due to its effects on the agriculture industry and the food we buy. It poses a significant challenge for farmers by potentially wiping out...

Safe Chicken Handling from Supermarket to Backyard: Dr. Andrea Etter 27.03.2024

While many microbes bring benefits, pathogens are the focus when ensuring food safety. This episode dives into practical tips for enjoying chicken, whether you buy chicken or eggs from the store or raise your own chickens for eggs in your backyard. Join food safety expert Dr. Andrea Etter as she shares insights into preventing foodborne illnesses caused by bacteria like Salmonella and Campylobacte...

The Skin Microbiome and Our Health: Dr. Aayushi Uberoi 29.02.2024

Have you ever stopped to think about the bustling world of life thriving right on your skin? Billions of microscopic organisms, collectively known as the skin microbiome, call this complex ecosystem home, playing a vital role in our health. Many of us are unaware of the intricate dance between our skin and its microbial residents. This delicate balance can tip, potentially leading to various healt...

The Gut Virome: Michael Shamash 18.01.2024

Have you ever thought about the trillions of invisible, microscopic entities inhabiting your body right now? While much of the microbiome spotlight shines on bacteria, there's a hidden side to this story that many people overlook. In this podcast episode, we discuss the lesser-known residents of our microbiome: viruses. These tiny but potent entities are fundamental players in our gut's ec...

Sustainability Through Biodegradation: Jhonatan Hernandez Valdes 19.10.2023

Are you curious about how microbes are involved in creating a more sustainable world? Those tiny, often-overlooked organisms hold a remarkable secret — the power to break down chemicals through biodegradation. Imagine a world where plastics and other challenging compounds, often seen as environmental villains, could be transformed into environmentally-friendly products. In this episode, I chat wit...

The Lab Coat Project: Dr. Derek Miller 11.09.2023

Lab coats are an integral part of the world of microbiology, serving as a vital piece of personal protective equipment (PPE). When we envision a microbiologist at work wearing their crisp lab coat, we often associate it with professionalism and scientific rigor. However, the reality is that lab coats, while essential, don't always live up to expectations. For many scientists, they can be a sou...

Teaching High School Microbiology with Passion and Purpose: Clara Marcelín 30.08.2023

Are you a science educator who wants to spark curiosity in your high school students with microbiology? In this world of information overload and digital distractions, capturing the attention of today's learners might seem like an uphill battle. That’s why, in this podcast episode, I chatted with Clara Marcelín, a seasoned high school science educator. She shares her methods for transforming m...

The Aromatic World of Microbes: Exploring the Delightful and Repulsive Smells 20.07.2023

Have you ever caught a whiff of something and wondered, "What in the world is responsible for this?" Well, the world of microbes might hold the answer. These tiny organisms, invisible to the naked eye, have the remarkable ability to produce smells that range from delightful to downright repulsive. It's a world where the nose becomes a gateway to a range of odors, each telling a microbi...

What Really Makes Something Dirty: Dr. Sandra Wilks 30.06.2023

In a world where news articles claim that your water bottle has more bacteria than a toilet seat, it's natural to worry about microorganisms making you sick. However, it’s important to embrace the microbial world around us because they play crucial roles in our lives, and without them, we would be in bad shape. So, in this episode of the Joyful Microbe podcast, we’re covering how to appreciate...

Algae in Nature and Biotechnology: Dr. Kyle Lauersen 30.05.2023

In this episode, we dive into the captivating world of algae and biotechnology with Dr. Kyle Lauersen. He is an Assistant Professor at King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia and leads a research group focusing on engineering algae for useful purposes. We cover everything from the basics of algae and their role in nature to their potential to drive sustai...

Introducing Joyful Microbiology Activities 27.04.2023

I'm thrilled to announce that in this podcast episode, I read the introduction chapter of my brand new ebook, Joyful Microbiology Activities. This book has been a labor of love, and I'm so excited to share it with you. Microbiology is a fascinating subject studying organisms that are often viewed negatively as “those gross and scary germs.” However, my goal with this ebook is to shift that...

Microbes & health, forensic microbiology, and Invisible Friends: Dr. Jake Robinson 30.03.2023

Dr. Jake Robinson is a microbial ecologist at Flinders University and researches microbes, ecosystems, social equity issues, and ways to conserve and restore nature. He studies how microbes can benefit human health and not just cause disease. He is also the author of the new book Invisible Friends. He came on the podcast to discuss a variety of topics, including the following: The importance of mi...

Microbiology Education Ideas and Tips From The Joyful Microbe Community 18.10.2022

We are celebrating, microbe friends! This month marks the 4th anniversary of Joyful Microbe!!! I’ve had such a blast creating articles, podcast episodes, and other resources to help you enjoy microbes in your daily lives and spread knowledge about the microbial world with others. In this episode, I’m featuring ideas and tips about microbiology education from folks in the Joyful Microbe Community!...

How To Nurture Your Skin Microbiome: Dr. Julie O’Sullivan 30.09.2022

A vast number of microbes live on our skin, in our gut, and almost everywhere else you can imagine on and in our bodies. Collectively, these microbes are called the human microbiome and play a crucial role in our health and well-being. Different locations on our bodies contain a specific set of microbes, which are individual microbiomes, i.e., the gut microbiome, skin microbiome, and oral microbio...

What is a tardigrade? 05.08.2022

Tardigrades are beloved microorganisms. These little water bears hide in moss, lichen, and bark of trees. When kids discover tardigrades, it often sparks an interest in science. If you haven’t personally experienced finding a tardigrade under the microscope, I promise it makes a significant impact. In this podcast episode, you’ll get the chance to learn about tardigrades from Dr. Sandeep Eswarappa...

The Microbiology of Fermented Foods: Dr. John Leech 25.05.2022

Fermented foods like beer, wine, bread, sauerkraut, yogurt, and kombucha are delicious to eat and fun to make at home. And we can give credit to microbes for the wonderful flavors of these foods. The process of fermentation is when microbes transform food so that it extends its shelf life, improves the taste, or makes it beneficial to consume.  In this podcast episode, I talk with Dr. John Leech,...

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