The cover illustration depicts pseudohyphal filaments of the ascomycete Saccharomyces cerevisiae that enable this organism to forage for nutrients. Pseudohyphal filaments were induced here in a wildtype haploid MATa Σ1278b strain by an unknown readily diffusible factor provided by growth in confrontation with an isogenic petite yeast strain in a sealed petri dish for two weeks and photographed at | Topics in Current Genetics . 1 A. Aguilera R. Rothstein Eds. Molecular Genetics of Recombination Springer Topics in Current Genetics 17 Series Editor Stefan Hohmann Available on ine at Springer Andrés Aguilera Rodney Rothstein Eds. Molecular Genetics of Recombination With 70 Figures 30 in Color and 8 Tables 1 .
