| |
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Dactylaria sp.: Comprise a very small proportion
of the fungal biota. This genus is most closely
related to Ochroconis and Scolecobasidium. Opinions
differ regarding the taxonomy of these three genera
and are considered by many to by synonyms. There
have been several reports of opportunistic infections
caused by these genera but a true pathogenic role
has not been firmly established. No information
is available regarding upper respiratory health
effects, or toxicity. May be identified on surfaces
by tape lifts, tease mounts from bulk samples,
and in air by culturable samples. Certain species
of Dactylaria have somewhat distinctive spores,
which would be counted on spore trap samples if
the presence of this genus has already been demonstrated.
Natural habitat includes soil and decaying leaves.
Dicyma sp.: Comprise a small proportion of the
fungal biota. This genus is the asexual phase
of Ascotricha, which is closely related to Chaetomium.
No information is available regarding health effects
or toxicity. Allergenicity has not been studied.
Identified on surfaces by tape lifts, and tease
mounts from bulk samples. Does not grow on general
laboratory media. Dicyma spores could be counted
on spore trap samples if the presence of this
genus has already been demonstrated (for example,
on tape lifts). Spores are somewhat distinctive
but may be confused with other genera. Sources
of growth include dead stems and leaves, paper,
cardboard, cotton wool, woody materials and wallboard.
Doratomyces sp.: Comprise a small proportion
of the fungal biota. The speculating structures
of Doratomyces form synnema (coremia), which are
a gathering of conidiophores into a sort of flower
bouquet. This genus is very closely related to
Scopulariopsis, with identical sporulating mechanisms
but without the formation of synnema. No information
is available regarding health effects or toxicity.
Allergenicity has not been studied. May be identified
on surfaces by tape lifts, tease mounts from bulk
samples, and in air by culturable (Anderson) samples.
Spores do not have distinctive morphology and
would be categorized as “other colorless”
on spore trap samples. Natural habitat includes
coil, compost, wood, herbaceous stems, oat seeds,
decaying plant material and dung.
Drechslera, Bipolaris, and Exserohilum group: Contaminant. Opportunistic pathogen. Found in
grass, grains, and decaying food. Can occasionally
infect eye, nose, lungs and skin.
return to top
|
|
