Germ plasm RNP aggregates associate with Mid1ip1L-dependent cortical F-actin contractions. (A-B″) SIM images of cortical F-actin and germ plasm RNPs (anti-P-myosin) in wild type (A-A″) and aura mutants (B-B″), with orthogonal views (A′,B′, F-actin/RNPs; A″,B″, F-actin alone). Scale bar: 5 μm.