The true statement about Boletus edulis is A. Boletus edulis forms mycorrhizal associations with various species of pine trees, indicating a mutualistic relationship where the fungus aids in nutrient absorption for the trees, and, in return, receives sugars.
Mycorrhizal associations are symbiotic relationships between fungi and plant roots, enhancing nutrient uptake for both parties.
Boletus edulis, commonly known as porcini mushrooms, establishes such relationships with many different species of pine trees.
The fungus assists the trees in absorbing essential nutrients, such as phosphorus and nitrogen, from the soil.
In return, the trees provide the fungus with sugars produced through photosynthesis.
This mutualistic association benefits both the fungus and the host trees, contributing to ecosystem health and nutrient cycling.
The false statements (B, C, and D) misrepresent the ecological role and behavior of Boletus edulis in the forest ecosystem.
The probable question may be:
Porcini mushrooms (the reproductive structures of Boletus edulis, a fungus) appear in the forest every summer and fall. Boletus edulis are mycorrhizal fungi and associate with many different species of pine trees. Which statement about Boletus edulis is TRUE?
A. Boletus edulis forms mycorrhizal associations with various species of pine trees, indicating a mutualistic relationship where the fungus aids in nutrient absorption for the trees, and, in return, receives sugars.
B. Boletus edulis is a parasitic fungus that harms pine trees by extracting nutrients from their roots.
C. Porcini mushrooms are the underground structures of Boletus edulis, emerging only during specific seasons.
D. Boletus edulis is a saprophytic fungus, obtaining nutrients by decomposing dead organic matter in the forest.