Hi

you probably mean hypha

Suzanne SIMARD is the best personn to talk about tree communication through hyphae

https://forestry.ubc.ca/faculty-profile/suzanne-simard/

The primary effect of the mycelium is the created increase in surface area - and therefor the ability for water and nutritient absorption. The secondary effect is that ecosystems benefit because water and trace metals can be transported to the trees and between trees through the effect of fungal mycelia.

Google "mycorrhiza". This is your starting point.

Suzanne Simard, and also Merlin Sheldrake 'Entangled Life'.

Hi,

this review is good to start.

Article Mycorrhizal networks: A review of their extent, function, an...

Regards!

Trees to communicate?

Fungi are generally saprophytic - they break down organic matter. As Matais commented, some fungi also form intimate and specific associations with plants.