B.C. scientists have discovered that death cap mushrooms have learned to live off the roots of Garry oak trees. This means the mushroom has adapted, spread itself farther, and can now also be found anywhere Garry oaks grow. (Adolf and Oluna Ceska photo)

B.C. scientists have discovered that death cap mushrooms have learned to live off the roots of Garry oak trees. This means the mushroom has adapted, spread itself farther, and can now also be found anywhere Garry oaks grow. (Adolf and Oluna Ceska photo)

Death cap mushroom evolves to survive off B.C. native tree species

Notoriously poisonous mushroom can now be found near the base of Garry oak trees

Beings of nature have a fascinating way of adapting to their environment.

Amanita phalloides, or death cap mushrooms, originated in Europe but were accidentally introduced in B.C. through hitching rides on the roots of trees, such as the sweet chestnut. Once planted in the yards of urban neighbourhoods here, the fruiting bodies began to make their presence known.

Initially, the notoriously poisonous mushroom would only show up near the base of transplanted European trees. And for a while, the only place they could be found was in Vancouver or the Greater Victoria region.

However, in the last few years B.C. scientists discovered that death caps have learned to live off the roots of Garry oak trees, shared Metchosin biologist Andy MacKinnon. This means that the mushroom species has adapted, spread itself farther, and can now also be found anywhere Garry oaks grow.

READ ALSO: Activists hunker down to protect Fairy Creek near Port Renfrew from logging

MacKinnon grew up in Vancouver, graduating with a master’s degree in mycology from the University of British Columbia. He noted that although death cap mushrooms have evolved to survive on the native oak trees, he is unsure of how this will affect the ecosystem.

“We really have no idea what the affect on the tree is,” said MacKinnon, who is currently helping with a study that investigates what fungi species grow on Garry oak roots. “It is difficult to tell whether the death cap would displace other fungi that grow on the roots, or just grow in addition to what is there already.”

There is a scarcity of research done on the relationship between Garry oaks and fungi, MacKinnon added, so before they could predict how the trees are affected, more information is needed on what other species grow on the roots.

MacKinnon, who is also a Metchosin councillor, continues to research the curious lives of mushrooms through various projects.

One of his learning lenses is focused with the Metchosin Biodiversity Project, a group that aims to increase understanding of Metchosin’s species and ecosystems. The organization holds annual “mycoblitz” events, which include the community in collecting and identifying mushrooms in Metchosin.

For more information, or to learn about species that have been identified in the region, please click here.

For more news from Vancouver Island and beyond delivered daily into your inbox, please click here.

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Abbotsford’s Ying Chun Chen recently won a $1-million prize with Lotto 6/49. (Submitted)
Abbotsford’s Ying Chun Chen recently won the $1-million prize in a Lotto 6/49 draw. (Submitted)
Abbotsford’s Ying Chun Chen wins Lotto 6/49 $1-million prize

Ticket was purchased at Abbotsford’s FreshCo for the March 6, 2021 draw

Kao Macaulay has been charged in relation to a home break-in on March 30 in Abbotsford in which five kittens were stolen. (Facebook photo)
Former Chilliwack man charged with theft of 5 newborn kittens in Abbotsford

Prolific offender Kao Macaulay, 23, accused of breaking into home on March 30

The City of Chilliwack website now has a panel full of customization options for people with disabilities, including an ADHD Friendly Profile. (chilliwack.com)
VIDEO: City of Chilliwack website offers new options for people with disabilities

The website now has a panel allowing users to adjust just about everything to suit individual needs

Williams Lake RCMP arrested a man Saturday, March 13 near Wildwood in vehicle stolen in Quesnel. (RCMP logo)
UPDATE: Chilliwack woman missing since March 17 found safe and sound

RCMP thanks the media and public for assistance

Workers were on scene to clean up the oil spill in Abbotsford at Trans Mountain Pipeline’s Sumas pump station in June 2020. (File photo by Shane MacKichan)
TSB releases final report on June 2020 oil spill in Abbotsford

Transportation Safety Board says pipeline fitting to blame for spill of up to 190K litres

Restaurant patrons enjoy the weather on a patio in Vancouver, B.C., Monday, April 5, 2021. The province has restricted indoor dining at all restaurants in B.C. due to a spike in COVID-19 numbers. THE CANADIAN PRESS/Jonathan Hayward
B.C.’s COVID-19 indoor dining, drinking ban extending into May

Restaurant association says patio rules to be clarified

In a 2019 photograph, Yin Yin Din held a picture of her brother Kyaw Naing Din, 54, and her late father Hla Din who passed away in 2014, during a trip to Victoria. (The News files)
Family of B.C. man killed by cop appeals to Attorney General for help

The Din family want B.C. Attorney General David Eby to forward their case to Crown

B.C. Premier John Horgan speaks at the B.C. legislature. (B.C. government)
Tougher COVID-19 restrictions in B.C., including travel, still ‘on the table’: Horgan

John Horgan says travel restrictions will be discussed Wednesday by the provincial cabinet

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Protesters occupied a road leading to Fairy Creek Watershed near Port Renfrew. (Submitted photo)
B.C. First Nation says logging activist interference not welcome at Fairy Creek

Vancouver Island’s Pacheedaht concerned about increasing polarization over forestry activities

Flow Academy is not accepting membership applications from anybody who has received a dose of the vaccine, according to a password-protected membership application form. (Submitted image)
B.C. martial arts gym refusing patrons who have been vaccinated, wear masks

Interior Health has already issued a ticket to Flow Academy for non-compliance with public health orders

Maple Ridge's Doug Ubell caught some photographs recently that he was anxious to share, one taken while on the Trans-Canada Trail looking southwest towards the Pitt River Bridge, and another from on Golden Ears Bridge. (Special to The News)
Traffic on Golden Ears Bridge returning to pre-pandemic levels

Commuters from Greater Vancouver still driving more, taking transit less

Sheila Malcolmson, B.C.’s minister of mental health and addictions (Screen shot)
Minister of mental health tells Surrey audience COVID-19 ‘has made everything worse’

More than 23,000 people in B.C. are receiving medication to treat opioid addiction

Facebook screenshot of the sea lion on Holberg Road. (Greg Clarke Facebook video)
VIDEO: Sea lion randomly spotted on remote B.C. logging road

Greg Clarke was driving home on the Holberg Road April 12, when he saw a large sea lion.

Most Read