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Armillaria Ostoyae

All articles tagged with #armillaria ostoyae

science1 month ago•12 min saved

Oregon’s Underground Giant: a single honey fungus spanning the Malheur forest

An ancient Armillaria ostoyae honey fungus in Oregon’s Malheur National Forest spreads underground across about 10 square kilometres, a single genetic individual (Genet D) identified through DNA studies and estimated to be thousands of years old; surface signs are dying trees and autumn mushrooms, while the fungus propagates root-to-root via rhizomorphs. Its claim to be the largest organism on Earth depends on measurement method—by area it may not top the list, with contenders like Shark Bay’s seagrass and Utah’s Pando by mass—yet it remains one of the planet’s most expansive single living entities.

via Space Daily|

#armillaria-ostoyae #honey-fungus #largest-living-organism

discoveries1 month ago•48 min saved

Oregon’s Hidden Gigantic Fungus Reveals Earth’s Largest Living Organism

Researchers mapped a single Armillaria ostoyae fungus beneath Oregon’s Blue Mountains that spans about 9.65 square kilometers and may be thousands of years old, making it the largest known organism on Earth; the discovery challenges how we define an individual, underscores the fungus as a long-running forest pathogen, and suggests management should focus on reducing impact rather than eradicating it.

via The Brighter Side of News|

#armillaria-ostoyae #blue-mountains-oregon #discoveries

science1 month ago•15 min saved

Hidden Giant Beneath Oregon: A Single Honey Fungus Spans 3.5 Square Miles

A single Armillaria ostoyae fungus under Oregon’s Malheur National Forest covers about 2,385 acres (roughly 3.5 square miles) and is estimated to be 2,000–8,500 years old, making it the largest known living organism on Earth. Its underground mycelium and rhizomorphs slowly kill trees to feed the colony, while the visible autumn mushrooms are small and transient. DNA fingerprinting and vegetative pairing proved the entire forest-wide network is one genet. There is no way to eliminate it; management focuses on planting resistant species and careful thinning to slow its spread.

via Space Daily|

#armillaria-ostoyae #honey-mushroom #largest-organism

science5 months ago•2 min saved

Oregon's Hidden Giant: The 8,650-Year-Old Honey Fungus Spanning 3.7 Square Miles

The world’s largest known organism is a single honey fungus (Armillaria ostoyae) in Oregon’s Malheur National Forest, covering about 3.7 square miles with an extensive underground mycelial network and rhizomorphs. Genetic tests revealed it is a single clonal individual that killed trees by enzymatic decay, and estimates place its age between roughly 2,400 and 8,650 years.

via BBC Wildlife Magazine|

#armillaria-ostoyae #honey-fungus #largest-organism

science5 months ago•2 min saved

Oregon's Glowing Giant: the World’s Largest Organism

The world’s biggest and oldest organism is a single clone of honey fungus (Armillaria ostoyae) in Oregon’s Malheur National Forest, spanning about 3.7 square miles. Its vast underground mycelial network (with rhizomorphs) grows by feeding on trees, while the surface shows bioluminescent hints known as foxfire. Estimates place its age between 2,400 and 8,650 years, underscoring how a fungus can dwarf all other life in scale.

via BBC Wildlife Magazine|

#armillaria-ostoyae #bioluminescence #honey-fungus

science1 year ago•4 min saved

Giant 35,000-Ton Organism May Be Earth's Largest

The humongous fungus in Oregon, known as Armillaria ostoyae, is the largest organism on Earth by mass, spanning 2,385 acres and weighing around 35,000 tons, primarily existing as an underground network of mycelium that plays a crucial role in decomposing organic matter and recycling nutrients, with debates ongoing about its true size and the definition of an organism.

via Indian Defence Review|

#armillaria-ostoyae #ecological-role #humongous-fungus