A journey into space

The fission yeast, Schizosaccharomyces pombe, has been used as a model euka ryote to study processes such as the cell cycle and cell morphology. In thi s single-celled organism, growing in a straight line and maintaining the nu cleus in the centre of the cell depend on intracellular positional informat ion. Microtubules and microtubular transport are important for generating p ositional information within the fission yeast cell, and these molecular me chanisms are also probably relevant for generating positional information i n other eukaryotic cells.