Editor's Summary
21 May 2009
- Surprise role for Polycomb
- Neighbourly friction
- Taking the pulse of red giants
- Martian water runs cold
- Chromium goes exotic
- Digital storage in five dimensions
- Nanomaterials get complicated
- Life on a hostile Earth
- Flowering: a perennial problem
- Apoptosis: an explanation for 'fractional killing'?
- Beating anti-fungal defences
- On target for new plant genes
- Na+, K+-ATPase structure
- Nicotinic receptor channel opening
- GlcNAcylation of chromatin proteins in granulopoiesis
- DNA repair: the chosen pathway


