a.1.(Bot.) Having no capsule.
References in periodicals archive ?
Emm4 isolates are associated with pharyngitis in children (10,11); these isolates are entirely acapsular, a phenotype linked to enhanced adhesion to surfaces (12).
Three strains with varying degrees of encapsulation were used in this study: a highly encapsulated strain M781; strain COHl with medium encapsulation; and an acapsular mutant strain COHl-13.
Thus, virulent capsular strains were phagocytosed by and replicated in Acanthamoeba castellanii, leading to amoebal death, while the nonvirulent acapsular strains were killed (11).