Why is It Important That Ectomycorrhizal Fungi EMF) Have Peptidase

Question

Why is it important that ectomycorrhizal fungi EMF) have peptidase enzymes?
A) These enzymes catalyze the formation of the compounds used during decomposition.
B) These enzymes are necessary to break through the tough lignin layers in plants.
C) These enzymes are needed to release nitrogen from dead plant material in colder environments.
D) These enzymes assist with the breakdown of cellulose.

Accepted Answer

Ectomycorrhizal fungi (EMF) form mutualistic associations with roots of trees and other woody plants in forests. These fungi help the host plant to acquire nutrients and water from the soil, especially under nutrient-poor conditions. EMF are able to decompose complex organic molecules, such as lignin and cellulose, through the secretion of various enzymes. Peptidase enzymes play an important role in breaking down nitrogen-containing compounds, such as proteins and amino acids, in dead plant material. In colder environments, where decomposition is slower, the release of nitrogen from such sources can be limiting for plant growth. The presence of peptidase enzymes in EMF can contribute to the availability of nitrogen for the host plant.