L Hernault S, Shakes D, Ward S. Developmental genetics of chromosome I spermatogenesis-defective mutants in the nematode Caenorhabditis elegans. Genetics. 1988;120:435-52 pubmed
..Mutations in five genes (fer-7, spe-9, spe-11, spe-13 and spe-15) allow formation of normal looking motile spermatozoa that appear to be defective in either sperm-spermathecal or sperm-oocyte interactions...
Syntichaki P, Samara C, Tavernarakis N. The vacuolar H+ -ATPase mediates intracellular acidification required for neurodegeneration in C. elegans. Curr Biol. 2005;15:1249-54 pubmed
..Similar mechanisms may contribute to necrotic cell death that follows extreme acidosis-for example, during stroke-in humans. ..