It has now been suggested that that impression is too simplistic. Ingham et .al. has shown that Aspergillus fumigatus, a fungus important for the degradation of dead plant material (e.g. compost heaps) and which has an important impact on human health (e.g. aspergillosis), seems to work closely with a highly motile bacterium Paenibacillus vortex.
|Paenibacillus is very able at moving over solid surfaces and forms characteristic swarms|
|Aspergillus growing across gaps|
- Paenibacillus will not do this for other particles similar in size to Aspergillus spores.
- Other swarming bacteria where tested and were found not to transport A. fumigatus spores.
- Paenibacillus will not transport the spores of other fungi similar to A. fumigatus as efficiently as they do for A. fumigatus.
|P. vortex flagella 'gripping' A. fumigatus spores during transport|