Standard histochemical analysis of cells and tissues generally involves procedures that utilize a relatively small number of probes such as dyes, and generally requires hours or days to process. Our laboratory has developed a novel method for histoche . . .

In previous studies, we have found that negatively charged, but not uncharged, amino acids and sugars block sea urchin fertilization. These studies were developed from modeling work in non-living systems using derivatized agarose beads that suggested . . .

This study describes a novel rapid histochemical method to survey surface properties of sperm in a model system, the sea urchin. Surface properties of live and fixed sea urchin sperm of 2 species (Strongylocentrotus purpuratus and Lytechinus pictus) i . . .