The organism, Phoma spp., is a member of the coelomycete (EmLab P&K) fungi that produce spores inside a pycnidia. The spores are produced inside this hollow structure with an opening on top in an arrangement similar to a kiwi fruit or a pomegranate.
In buildings, this organism will often grow on slab on grade carpet with moisture problems. It is a plant pathogen in tropical to temperate climates. The single celled spores are unremarkable in structure and not differentiated on Air-o-cell cassette samples. The organism is may be allergenic.
The organism grows best on media with higher water activity such as MEA. It does not grow well on DG-18.
|The organism, Phoma spp. growth in MEA - N. Carlson|
|Surface of Phoma spp. shot from above - N. Carlson|
|Microscopic photo of Phoma spp. at lower magnification - N. Carlson|
|Low magnification Phoma spp. - N. Carlson|
|High magnification microscopic photo of Phoma spp. some species produce Alternaria spp. like spores. - N. Carlson|