broadcast of the day:

• Genome of streptococcus sanguinis (2.4m bp) has been sequenced. This bacteria lives in healthy human mouth but can cause deadly heart infection (bacterial endocarditis) if it enters the bloodstream (through minor cut or wound). It also plays a role in formation of dental plaque.

• Symbiosis of the fungus Rhizopus microsporus and Burkholderia bacteria that live within its cells: The two species effectively team up to break down young rice plants for their nutrients, causing a plant disease known as rice seedling blight. Latest research shows that reproduction (spore formation) of the fungus is dependent on the bacteria, which lives inside its cytoplasm.