Dr. Ted's Chunky Style Myco-bits

Mycorrhizae and the Plant Community

Ted St. John, Ph.D.


Endomycorrhizal fungi, and to a lesser extent ectomycorrhizal fungi, are quite non-specific for host plants.  In other words, you do not need a "right" mycorrhizal fungus for each plant species, except that an endomycorrhizal plant needs and endomycorrhizal fungus.  One consequence of this non-specificity is that the same mycorrhizal fungus can interconnect a number of unrelated plant species.  

The interconnected plants are, to some extent, suggestive of the old ecological idea (largely discredited among ecologists) that the plant community is a sort of "super organism."  The interconnected plants share a nutrient uptake system, and jointly contribute to its energetic support. 

In a natural ecosystem, the network interconnects a number of plant species, and also consists of between one and two dozen fungal species, each with its own network, either patchy in distribution or interwoven through other networks.