Status: Not Listed
Truffles are not plants or animals—they’re underground mushrooms in the fungi kingdom. The part of the truffle that most people see looks like a small, lumpy potato. This is the part of the fungus that creates spores for reproduction, just like a typical aboveground mushroom. Truffles also send out an extensive system of rootlike filaments called hyphae that interact with plants.
Truffles and trees face a dilemma. The hyphae of truffles are exceptional absorbers of water and nutrients, but they can’t photosynthesize sugar for food. Trees, on the other hand, have lots of photosynthesizing leaves that allow them to create their own food, but they’re not always the best at soaking up water and nutrients. Somewhere in the evolutionary scheme of things, truffles and trees began to take advantage of each other’s strengths. The hyphae of truffles latched onto the roots of trees to create symbiotic relationships called mycorrhizae. The truffle provides the tree with extra water and nutrient absorption, and the tree gives the truffle sugar in return.
There are hundreds of truffle species, but the genus Tuber contains most of the gourmet ones. These truffles are mostly found below soil in forested areas. Truffles are also farmed on plantations called truffières, but growing them is a tricky process. The most highly-prized truffles in the U.S. are the Oregon white, brown, and black truffles and the pecan truffle in the South.
Since they’re underground, truffles can’t distribute their spores on air currents like most mushrooms. They rely on animals digging them up and eating them to transfer their spores to new places. Truffles disclose their location to hungry mammals with a scent that requires a strong nose to detect. Avid collectors take advantage of this trait and use dogs and pigs to forage for them.
Truffles do not face any major threats. They are an important part of forest ecosystems because some animals subsist almost entirely on truffles.
Truffles are the most expensive food in the world. The largest, rarest truffles sell for hundreds of thousands of dollars.
North American Truffle Growers’ Association
North American Truffling Society
The New York Botanical Garden
University of Kentucky College of Agriculture
Tell your members of Congress to save America's vulnerable wildlife by supporting the Recovering America's Wildlife Act.Read More
Every year we break out the heavy coats and scarves to keep warm, but what do animals do?Read More
A new study finds Roundtable on Sustainable Palm Oil certification significantly reduced deforestation in Indonesian oil palm plantations.Read More
The Arctic is a unique ecosystem of extremes, but human activities are threatening this incredible wild place.Read More
You don't have to travel far to join us for an event. Attend an upcoming event with one of our regional centers or affiliates.