Plant-Mycorrhiza Percent Infection as Evidence of Coupled Metabolism

TL;DR

This paper demonstrates that stable mycorrhizal infection levels on plant roots indicate periods of tightly coupled growth and metabolism between the plant and mycorrhiza, providing insights into their symbiotic relationship.

Contribution

It introduces the concept that stable infection percentages reflect coupled metabolic states, offering a new perspective on plant-mycorrhiza interactions.

Findings

Stable infection periods correspond to coupled growth rates.

Metabolism of plant and mycorrhiza are likely synchronized during these periods.

Infection growth follows a logistic pattern with transient plateaus.

Abstract

A common feature of mycorrhizal observation is the growth of the infection on the plant root as a percent of the infected root or root tip length. Often, this is measured as a logistic curve with an eventual, though usually transient, plateau. It is shown in this paper that the periods of stable percent infection in the mycorrhizal growth cycle correspond to periods where both the plant and mycorrhiza growth rates and likely metabolism are tightly coupled.