Example search terms: loss of pathogenicity, Candida, Enterococcus, Magnaporthe oryzae, wheat, azole, spot blotch disease, PHI:1020, ABC1, anti-infective. Type * to browse database.

From mutant genes to phenotypes! The mission of PHI-base is to provide expertly curated molecular and biological information on genes proven to affect the outcome of pathogen-host interactions. Information is also given on the target sites of some anti-infective chemistries.

PHI-base data



Search PHI-base

Download PHI-base data

View PHI-base statistics

Submit your published phenotype data

Getting Started


Text search
Search terms are auto completed when entries are found.

PHIB-BLAST
Find homologs and their phenotypes

Submit data
Manual curation of the pathogen interaction literature

How to cite us:
Urban, M. et al (2025). NAR. doi: 10.1093/nar/gkae1084

Tweets by @PHI_base


PHI spotlight




📣 Help us improve PHI-base - short user questionnaire


Dear PHI-base user,

We invite you to complete a short questionnaire (10 minutes) to help further improve PHI-base in 2026.
It asks about your experience using PHI-base, our data quality and coverage, and overall usefulness.
Your feedback will guide our future development. Many thanks!

Version: 4.18 release - Last revision: 01/05/2025

PHI-base is funded by the Biotechnology and Biological Sciences Research Council (BBSRC, UK) and is being developed and maintained by scientists at Rothamsted Research.
Home | About Us | Disclaimer & Privacy Policy | Contact Us