Aspergillus niger

(redirected from A niger)

As·per·gil·lus ni·ger

a species with black spores, often present in the external auditory meatus but rarely pathogenic; used in the commercial manufacturing of citric and gluconic acids.

Aspergillus niger

A pathogenic species with black spores, frequently present in the external auditory meatus. It may cause pneumonia in immunocompromised patients, and otomycosis. The presence of localized oxalate crystals within necrotic tissue from the external auditory canal suggests the diagnosis.
illustration
See also: Aspergillus
References in periodicals archive ?
'Justice Walter Onnoghen a Niger Delta son that is supposed to serve as a role model to us has indeed failed woefully and brought shame and disgrace to the people of the Niger Delta region.
'When he filled his accounts with dollars and pounds, he wasn't a Niger Deltan.
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save the Children, a humanitarian group, has a Niger fund, at www.savethechildren.org/radio_niger.asp?st tionpub=ggnigercrisis
(5) Oxalic acid is a mycotoxin produced by A niger and occasionally by other Aspergillus species, including A flavus and A fumigatus.
A Niger Delta human and environmental rights activist, Comrade Sheriff Mulade, has warned governors of the Niger Delta to diversify their economy and review their over-dependence on crude oil which, he noted, will soon dry up.
'The Niger Delta region supposed to be economically vibrant not for the government alone, but everyone from the oil-rich region should feel the economic impact of being a Niger Deltan and a Nigerian.