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Fungal decisions can affect climate

By Adityarup "Rup" Chakravorty
 
When we think of climate change, we tend to think about greenhouse gases, fossil fuels and pollution. Most of us don’t think about fungi.
 
But Kathleen Treseder does. Treseder, an ecologist at the University of California, Irvine, studies how fungi can affect climate and vice-versa.
 
“Fungi are important to consider,” she says. “They can influence nearly every aspect of ecosystems, especially processes that occur in soils.”
 
New research from her lab shows that fungi can have different lifestyles in response to climate change. These findings can be incorporated into computational models that simulate ecosystems.
 
 
“We may be able to better predict shifts in atmospheric carbon dioxide levels and climate change,” says Treseder. “That can help us estimate how much, when and where climate change will affect human societies.”
 
It's important to be able to forecast which places will be hit by climate change and how quickly. These early warnings can help preparations, such as building sea walls or flood channels, or direct the development of new crop varieties.
 
Fungi are terrific decomposers. They break down organic material to get nutrients and energy. In doing so, they turn complex chemicals into simpler elements, such as carbon. In fact, “fungi are an integral part of the global carbon cycle,” says Treseder. “They can move carbon from decomposing material into the atmosphere as carbon dioxide.”
 
 
Fungi are terrific decomposers. They break down organic material to get nutrients and energy. In doing so, they turn complex chemicals into simpler elements, such as carbon. In fact, “fungi are an integral part of the global carbon cycle,” says Treseder. “They can move carbon from decomposing material into the atmosphere as carbon dioxide.”
 
Treseder’s research explores how fungi decide whether to use limited energy and resources to decompose material or for other processes. “No one can do everything well, and the same goes for fungi,” says Treseder. “If fungi invest resources into one activity like decomposition, then those resources won't be available to support another activity like tolerating environmental stress.”
 
 
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