What does the published scientific research say about Pisolithus arhizus?

Pisolithus arhizus (Scop.) Rauschert — also listed in older literature as Lycoperdon arhizon — is an ectomycorrhizal (ECM) fungus with documented associations with conifer hosts. One PubMed-indexed study (PMID 24294266) references P. arhizus in a plant-input context, placing it within a Portuguese research program examining ECM fungi from Mediterranean pine stands.

Identity of the collected P. arhizus sporocarps was confirmed via ITS amplification and PCR-based genomic fingerprinting against other Basidiomycetes and Ascomycetes genera. Beyond this single publication, the indexed literature base for Pisolithus arhizus as an agricultural input is limited to one record; growers or reviewers researching its broader efficacy, EPA registration status, or commercial label claims should consult additional primary sources.