From: Callyspongia crassa and C. siphonella (Porifera, Callyspongiidae) as a potential source for medical bioactive substances, Aqaba Gulf, Red Sea, Egypt
Crude extract
E. coli
P. aueroginosa
S. aureus
V. damsela
C. albicans
C. crassa
+ve
−ve
C. siphonella