Why can fungi never act as a producers in a food chain?

Question: Why can fungi never act as a producers in a food chain?
- Keywords:
- Search for related information:
  
  food chain
  
  fungi
Asked by 277fscd26 to Ruth, Emma on 10 Nov 2015.
- Ruth Hamill answered on 10 Nov 2015:
  
  They don’t have the biochemical ability to synthesis their own food from inorganic materials, like plants can. Some fungi are part of a symbiotic arrangement with plants called mycorrhizae that generates the food, but it is the plant part of the symbiont that does it.

Question: Why can fungi never act as a producers in a food chain?