Microbial Management Systems

Microbial Management Systems I provide practical, evidence-based perspectives on the role of microorganisms in environmental systems.

This page provides links to some of the latest news regarding environmental microbiology and microbial communities in various biomes. It also provides microbiological fact sheets for agriculturalists, farmers and mining rehabilitation practitioners covering the effects on microorganisms of soil organic matter, water, soil disturbance and other factors and debunking some of the hyperbole that permeates the soil treatment market.

In high deserts and other drylands, the surface can be mostly covered with biocrust: a slow-growing layer of bacteria, a...
04/09/2026

In high deserts and other drylands, the surface can be mostly covered with biocrust: a slow-growing layer of bacteria, algae, fungi, lichen and mosses. This living layer both produces and reinforces soils by shielding the ground from UV radiation, unlocking nutrients and trapping water. It also prevents erosion, supports the growth of native plants and stops dust from shedding into the air. But rising temperatures affect the crust’s ability to thrive, so researchers are doing careful field experiments to determine how to bolster and harness the benefits of biocrust. (15 min read)
https://www.sfgate.com/national-parks/article/arches-canyonlands-biocrusts-22384504.php?utm_source=Live+Audience&utm_campaign=69f8200126-nature-briefing-weekly-20260821&utm_medium=email&utm_term=0_-33f35e09ea-48937443

A single teaspoon of healthy forest soil is teeming with life — more organisms than there are humans on Earth. Most of t...
02/09/2026

A single teaspoon of healthy forest soil is teeming with life — more organisms than there are humans on Earth. Most of these microbes have never even been named. Beneath our feet, bacteria, fungi, protists, nematodes and tiny animals build complex food webs that drive nutrient cycling, carbon storage, pollution cleanup and plant growth. Scientists are now uncovering how pollution, pesticides and even ancient Amazonian soils reshape these underground communities. It’s a reminder that the forest floor isn’t just dirt — it’s a living engine quietly running the planet. (10 min read)
https://scienceblog.com/sb-a-single-teaspoon-of-soil-from-a-healthy-forest-floor-contains-more-living-organisms-bacteria-fungi-protists-nematodes-than-there-are-humans-on-earth-and-most-of-the-species-in-that-spoonful-have-n/

Underground fungal networks — the vast, hidden webs of mycelium beneath forests and soils — may be among Earth’s oldest ...
31/08/2026

Underground fungal networks — the vast, hidden webs of mycelium beneath forests and soils — may be among Earth’s oldest living organisms. Scientists think some could persist for centuries or even millennia, but their true age is still a mystery because fungi constantly regenerate, split, and merge in ways that make “individuals” hard to define. A new paper argues that understanding fungal longevity is key to protecting ecosystems, agriculture, and biodiversity, and calls for fresh tools to finally uncover how long these remarkable organisms live. (3 min read)
https://www.earth.com/plants/underground-fungal-networks-may-be-among-earths-oldest-living-things/?ck_subscriber_id=4241755147

New Australian research shows that microbes are actively breaking down decades‑old uranium and rare‑earth mining waste i...
28/08/2026

New Australian research shows that microbes are actively breaking down decades‑old uranium and rare‑earth mining waste in the Flinders Ranges in South Australia. These microbes transform previously stable metals into mobile nanoparticles, meaning the contaminants can now travel through soil and water. This overturns long‑held assumptions that such metals were safely immobilised in arid environments. It also highlights two major implications - legacy mine sites may be far less stable than believed, and the same microbial processes could inspire low‑impact mineral extraction or new remediation technologies. The work ties into the broader push for sustainable mining as demand for critical minerals accelerates. (4 min read)
https://www.monash.edu/science/news-events/news/2026/invisible-microbes-mining-toxic-waste-in-the-flinders-ranges?utm_campaign=ALUMN_SCI&utm_source=NEWS&utm_medium=email&utm_content=cta_5

Soil bacteria may be far less self-sufficient than scientists have traditionally assumed. A large study of nearly 7,000 ...
26/08/2026

Soil bacteria may be far less self-sufficient than scientists have traditionally assumed. A large study of nearly 7,000 bacterial isolates from 27 soil microbial communities in Germany has found that many of these organisms cannot grow without receiving essential metabolites from other microbes. The results suggest that soil ecosystems are sustained by extensive biochemical partnerships in which bacteria exchange amino acids, vitamins and nucleobases, rather than living as independent cells capable of producing everything they need. The findings provide one of the clearest experimental demonstrations that obligate metabolic cooperation is widespread in natural microbial communities. (5 min read)
https://bioengineer.org/soil-microbes-commonly-depend-on-metabolite-cross-feeding/

Bacterial biofilms that are facing life-threatening conditions can ‘eject’ a small cluster of cells that swim away and c...
24/08/2026

Bacterial biofilms that are facing life-threatening conditions can ‘eject’ a small cluster of cells that swim away and colonize a new location. To prepare for launch, bacteria in the biofilm begin to overproduce a polymer called poly-γ-glutamic acid, which forms a gel-like substance. As the gel accumulates, pressure builds, and eventually it propels a group of internal cells out of the film to seek pastures new. The findings could lead to new methods to force biofilms to rupture and die without drugs, the research team suggests. (6 min read)
https://www.the-microbiologist.com/news/eject-bacteria-discovered-with-the-ability-to-jettison-cells-as-a-survival-mechanism/9454.article?utm_source=Live+Audience&utm_campaign=fd713cc418-nature-briefing-microbiology-20260716&utm_medium=email&utm_term=0_-33f35e09ea-48937443

This article examines what defines human identity by exploring our biological, genetic, and physical composition. It hig...
21/08/2026

This article examines what defines human identity by exploring our biological, genetic, and physical composition. It highlights that the human body hosts roughly 39 trillion microbial cells compared to 30 trillion human cells, with gut microbes playing a critical role in essential bodily functions, immune system training, and mental health via the gut-brain axis. Furthermore, humans share the vast majority of their DNA with other species—including 98–99% with primates, 80–90% with other mammals, 20–25% with plants, and 30% with yeast—with only a tiny fraction of our genome being uniquely human. Down at the atomic level, quantum mechanics reveals that we are mostly made of probabilistic electron clouds rather than solid matter, held together by electrostatic forces. Ultimately, it concludes that because our physical and genetic boundaries are so porous, the true essence of human identity may actually lie in consciousness rather than our physical materials. (7 min read)
https://particle.scitech.org.au/mind-body/how-much-of-us-is-really-us/?utm_source=substack&utm_medium=email

German researchers have greatly expanded the diversity of myxobacteria, soil-dwelling bacteria that produce potentially ...
19/08/2026

German researchers have greatly expanded the diversity of myxobacteria, soil-dwelling bacteria that produce potentially useful natural compounds. They identified 118 previously unknown species and sequenced their genomes, revealing numerous genes for making novel bioactive molecules. An open-access genetic atlas, ABC-Myxo, now allows researchers worldwide to explore these resources. The work has already uncovered compounds with antifungal, antiviral and antibacterial activity, highlighting microbial biodiversity as a valuable source of future drugs against antibiotic-resistant infections. (3 min read)
https://phys.org/news/2026-08-soil-myxobacteria-reveal-classes-bioactive.html

Researchers have identified specific farm-associated bacteria and microbial metabolites that may explain why children ra...
17/08/2026

Researchers have identified specific farm-associated bacteria and microbial metabolites that may explain why children raised on farms have lower rates of asthma, hay fever and eczema. Several bacteria, including Romboutsia timonensis and Glutamicibacter arilaitensis, appear to account for a substantial part of this protective “farm effect”. Metabolites produced or modified by these bacteria activate human airway cell receptors, helping suppress excessive airway inflammation. The findings strengthen the microbiome-based explanation for allergy protection and could eventually lead to treatments that mimic the farm effect. (3 min read)
https://www.labroots.com/trending/microbiology/30851/allergy-reducing-bacteria-identified/amp

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