Has antibacterial activity against P.solanaceum (MIC=10 uM), X.vesicolor (MIC=100 uM) and B.subtilis (MIC=5 uM). Has antifungal activity against P.capsici (MIC=15 uM), B.cinerea (MIC=25 uM), V.dahliae (MIC=200 uM) and F.omysporum (MIC=50 uM). In P.capsici, inhibits mycelial growth (EC(50)=7.89 ug/ml), formation of sporangia (EC(50)=0.6 ug/ml) and cytospore germination (EC(50)=21.96 ug/ml). Active between pH 3 and 11. Retains >80% activity after 15 min at 100 degrees Celsius. Contains a choline moiety at the N-terminus and a tenuazonic acid moiety at the C-terminus.