Cover picture (left): Three-dimensional reconstruction of serial ultrathin sections reveals new insight into the organization of Maurer´s clefts in the cytoplasm of Plasmodium falciparum -infected erythrocytes. For further details, see article by Wickert et al. EJCB2004.

Cover picture (middle): Optical sections of mitotic chromosomes of zebrafish (Danio rerio) embryos at the cleavage stage after staining with antibodies against the integral membrane protein of the inner nuclear membrane LAP{omega} (red) and the DNA-staining dye Hoechst (blue). These early developmental stages are characterized by the association of nuclear-envelope-forming vesicles with mitotic chromosomes prior to anaphase, resulting in the formation of a nuclear envelope around each single chromosome (upper nucleus; approximately 15 chromosomes are visible). Subsequently nuclear membranes of neighbouring karyomeres start to fuse (lower nucleus). For further details, see the article by Schoft et al. JCS2003.

Cover picture (right): Down-regulation of Drosophila lamin Dm0 in cultured Drosophila Kc167 cells by RNA interference. The reduction of lamin Dm0 in the nuclear envelope (upper micrograph; green colour) does affect the localization of some inner nuclear membrane proteins like Bocksbeutel and otefin but not that of the lamin B receptor (lower micrograph; red colour). For further details, see article by Wagner et al. EJCB2004