Article is a bit short. Here's a few more to flesh out the topic and the plant, tho honestly only by a smidge (none of these links require javascript enabled)
Maybe it is best to think of many plants as photochemical food factory extensions for mycorrhizal fungi. Some plants can do without but many will suffer without a specific mycorrhizae.
https://naturalhistory.si.edu/research/botany/news/plant-pre...
https://www.earth.com/news/native-fungi-native-trees-plants-...
https://matjournals.net/pharmacy/index.php/IJPPR/article/vie...
https://ijpsr.com/?action=download_pdf&postid=97498