Fungi: The earth’s secret miracle worker that protects our climate


Let’s picture a dinner with family or friends that began by enjoying beer, wine, fruit juice or maybe a fizzy kombucha beverage. You’re contemplating a glorious basket of bread, rapt in awe of its perfect crumb and fantasizing about the moment you slather it in butter or olive oil.

Then come the fresh vegetables sautéed with soy sauce, maybe tofu or free-range beef with potatoes or rice, followed by cheese, or a chocolate dessert – and to top it off, a lovely cup of coffee or tea with some chocolates or maybe some sake?

We need to stop for a moment and thank fungi for all of this. Honestly, none of it would be possible without them, and your dinner would certainly not be so tasty!

Fungi are responsible for almost all our food production, and most of our processed materials.

They are also to be thanked for many of the important medical breakthroughs in human history that treat both physical and mental ailments, for naturally sequestering and slowly releasing carbon, for optimizing industrial processes, and so much more.

When most people think about fungi, they tend to associate them with decay. Many people mistakenly believe fungi are plants. However, fungi are neither plants nor animals but rather organisms that form their own kingdom of life.

The way they feed themselves is different from other organisms: they do not photosynthesize like plants and neither do they ingest their food like animals. Fungi actually live inside their food and secrete enzymes to dissolve nutrients they then absorb.

Included in this kingdom are yeasts, moulds, mushrooms, woodears or conks, and several other different types of unicellular and multicellular organisms that live in marine, freshwater, desert and both young and old ecosystems on Earth.

Basically, a morel and a chanterelle are as closely related as a flea and an elephant. The latter are both animals, the former are fungi.

Interestingly, fungi are more closely related to us animals than to plants, sharing a common ancestor in the form of an opisthokont, which is a cell with a posterior flagellum – like human spermatozoids.

Now to the central question: what would happen in a world without fungi? Most plants can’t live outside water and rely on
fungi to survive. There would be no forests for you to hike in or any agriculture to feed you.

Herbivores such as cows can’t break down grass without the fungi in their gut. Fermentation is possible only because of yeasts, which, going back to our dinner table, means that no fungi would mean no bread, no chocolate, no soy sauce, no beer or wine. Hence our gratitude for fungi at dinner.

Moreover, without moulds like koji many ancient civilizations could not have preserved food, other than using salt or smoking (imagine that for a second).

For decades we have extracted enzymes from fungi to clean clothes in cold water (yes, it’s fungi that do that in your detergent), have bioengineered natural pesticides with entomopathogenic fungi that eliminate the toxic burden of synthetic pesticides, and have learned to use some species to maximize the amount of metal extracted from rocks in mining processes.

We have also discovered the cholesterol-lowering statins in fungi, life-saving antibiotics like penicillin, the medicines that allow for organ transplants to be successful, and we are now finally accepting and legalizing medicinal compounds made by fungi to treat urgent and life-threatening mental health ailments such as PTSD and depression.

As if that weren’t impressive enough, our ancestral and traditional ways of ritually reaching the celestial from the terrestrial almost all include fungi – from the ritual beverage Soma in Vedic cultures to communion with bread and wine in Roman Catholic cultures. Fungi matter – a lot.

Nevertheless, the entire kingdom is ignored in most biodiversity, climate change and environmental legal frameworks. And by the general public too: for too long macroscopic diversity and species on earth have been referred to using the now obsolete term flora & fauna, or just plants and animals instead of fauna, flora & funga, or animals, fungi and plants.

The third “f”, representing fungi, is acknowledged as the correct term to refer to the diversity of fungi of a given place. The IUCN species survival commission and the global NGO Re:Wild – among others – have adopted this terminology. It seems the time has finally come to leave mycological illiteracy behind.

Decomposition, or decay, is the very beginning of a fundamental natural process that enables life. There is no regeneration without degeneration of organic compounds, because energy is not lost, it is transformed – and it is the fungi that are heavily responsible for this vital transformation.

For example, if we look at a fallen tree in the forest and imagine it is composed of building blocks, we can understand how decomposition works: fungi weave their way through the blocks, loosening them until they are “free” and ready to “rebuild” in another form.

For too long this process has been considered distasteful, under the once-upon-a-time understanding that life is a linear process. It is shocking to think that we can attribute any negativity to rot when we understand the incredible nature-based solutions it holds.

We can use rot for a more sustainable future too. For instance, mycelium – a mostly invisible group of fungi, such as mushrooms and conks – is a tangible and safe alternative to animal leather as well as plastic packaging, and is starting to revolutionize the fashion industry.

Mycelium leathers and packaging are offering the opportunity to use fungi involved in decomposition as a source of clothing and durable, recyclable and natural materials that are more sustainable to produce.

Materials like Mylo Unleather and Made with Reishi, as well as incredible packaging materials made by Ecovative, are trailblazing for industry to move away from pollutant materials whose manufacturing process requires unsustainable amounts of water, toxins, and energy, and sometimes requires the end of an animal’s life.

As legendary mycologist Paul Stamets said during Paris and London fashion weeks on the Stella McCartney runways: “In fashion, mushrooms are the future.” He says this while he wears a hat made of amadou, a fungal felt or suede of ancient eastern European origin which demonstrates that fungi have a successful past in fashion too.

There is consensus among mycologists that we know only 10% of species diversity within kingdom fungi, at most. It is urgent to further species knowledge before species are lost forever and with them their potential.

This goes beyond their use as materials or food: fungi sustain culturally important activities for rural communities all over the world. Thousands of families living in subsistence economies depend on the seasonal appearance of fungi as food and as a tradeable product to be consumed both locally, nationally and internationally.

Not only is this an activity that sustains livelihoods; it keeps cultures alive. In southern Chile, for instance, while the spring fungus Cyttaria espinosae “digüeñe” is being harvested by entire families, firewood is collected, songs are sung, oral history is transmitted, and you can hear the laughter and fun throughout the hills of the southern beech forests. Cyttaria – now that’s a delicious addition to the dinner table!

We must not ignore or underestimate the fact that fungi create ecosystems. How so? Well, let’s picture a cake: if we don’t put that binding ingredient like egg or aquafaba into the mix, the sugar and flour do not stick together. In a forest, for example, plants and animals do not “stick” together without the fungi to create the ecosystem.

The science is clear: fungi are essential to maintaining a stable climate system (given their role in sequestering carbon in soil) and preserving eco-systemic health. Legislation, however, has not caught up. Across many environmental and conservation policies, fungi have been overlooked or undervalued.

This oversight has consequences: when fungi are put at risk – endangering the ecosystems that depend on them – we miss opportunities to advance solutions to serious environmental problems like climate change and land degradation.

That’s why the Fungi Foundation is calling for the incorporation of fungi across law and policy at every level – national, regional and international. In the aftermath of COP26 I hope the UN puts fungi – which provide critical solutions to urgent environmental challenges like climate change – on their agenda.

Together with biologist and best-selling author Merlin Sheldrake and NYU Law professor César Rodríguez-Garavito, the Fungi Foundation prepared a manifesto and a roadmap for the legal recognition of fungi that has been endorsed by leading environmental experts and activists, including Jane Goodall, George Monbiot, Donna Haraway, Paul Stamets, Kristine Tompkins and Peter Gabriel to name a few, as well as more than a thousand other signatories from more than 70 countries.

International governance institutions – from the UN bodies to the Conference of the Parties (COP), which meets to advance the Convention on Biological Diversity – can use their political and legal clout to encourage the updating and creation of laws and policies that protect fungi and mainstream them into environmental, biodiversity, and conservation law and policy. National governments can follow the lead of Chile in adopting legislation that extends to fungi the legal protections that are recognized for plants and animals.

All mushrooms are magic. Take it from me, as someone who studies them. It’s time to say their name by acknowledging them all around – from the dinner table to international conservation policies – and including them in our conception of ecosystems that need to be cherished and protected. Say it with me: the world is inhabited by fauna, flora and funga.

Without fungi, the world as we know it would not exist.

Why fungi matter

So what’s the big deal about fungi & fungal mycelium?

It is estimated 90% of plants rely on fungi to live and that 93% of the world’s fungal species are yet to be discovered. Fungi have the potential to unlock sustainable sources of food and material, as well as other solutions to problems faced by humanity.

When you see a mushroom, this is only part of the organism. Like a plant that bears fruit, the mushroom is the fruit body of
the fungus.

The function of the mushroom is to produce spores (whereas the fruits of plants contain seeds), which travel away from the fungus and allow it to reproduce.

Fungi aren’t plants and they aren’t animals. In fact, fungi belong to their very own group called a kingdom. They range in size from microscopic yeasts, to the largest known living organism on our planet.

Fungi have been around for millions of years, even before the dinosaurs. Today you can find fungi everywhere – the Arctic, the tropics, the desert and in oceans and rivers too. They can even be found in space!

What is fungal mycelium?

The fine threads that make up the main body of the fungus are called mycelium. The mycelium stretches out beneath the mushroom in search of water and food.

Fungal mycelium often grows with the roots of plants, either covering the root or actually growing within it. The fungi provide water and nutrients that the plants can’t get easily from the soil and the plants provide the fungi with sugars, which they make during photosynthesis.

Unlike a plant, a fungus can’t make its own food by using energy from the sun. Instead, the fungus produces enzymes which are released by the mycelium and break down waste organic matter (usually dead plants and animals), to be absorbed through the mycelium and used by the fungus for growth.

What do fungi actually do?

Fungi are also one of the only groups of organisms that can efficiently break down wood, so in forest eco-systems they’re absolutely essential to stop dead wood and leaves building up.

Fungi recycle nutrients back into the soil, which helps plants to grow and thrive. Without the recycling capability of fungi, human beings wouldn’t be able to survive on this planet!

Some fungi are even used to make medicines, the most well-known being the antibiotic penicillin. Other fungi are used to produce medicines that lower cholesterol and to make ‘antirejection’ drugs, which enable people to have life-saving organ transplants.

You might be surprised how many foods are made using fungi too. Fizzy drinks, wine, beer, cheese, bread, Marmite, Quorn, coffee and chocolate all depend on fungi. Fungal mycelium is also being used to create environmentally-friendly leather, packaging and even building materials.

(Article source: Various)

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