Two novel species of Aspergillus section Nigri from Thai coffee beans.
Int J Syst Evol Microbiol, 2008/7;58(Pt 7):1727-34.
Noonim P[1], Mahakarnchanakul W, Varga J, Frisvad JC, Samson RA
Affiliations
PMID: 18599725DOI: 10.1099/ijs.0.65694-0
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Abstract
Two novel species of Aspergillus section Nigri from Thai coffee beans are described as Aspergillus aculeatinus sp. nov. and Aspergillus sclerotiicarbonarius sp. nov. Their taxonomic status was determined using a polyphasic taxonomic approach with phenotypic (morphology and extrolite profiles) and molecular (beta-tubulin, internal transcribed spacer and calmodulin gene sequences) characteristics. A. aculeatinus sp. nov. is a uniseriate species with a similar morphology to Aspergillus aculeatus and Aspergillus japonicus, but producing smaller conidia (2-5 microm). A. aculeatinus sp. nov. produced neoxaline, secalonic acid D and F, and aculeacins. A. sclerotiicarbonarius sp. nov. is a biseriate species similar to Aspergillus carbonarius and Aspergillus ibericus, but produces abundant sclerotia and some unique indol-alkaloids. The type strain of Aspergillus sclerotiicarbonarius sp. nov. is CBS 121057(T) (=IBT 28362(T)) and the type strain of Aspergillus aculeatinus sp. nov. is CBS 121060(T) (=IBT 29077(T)).
MeSH terms
Aspergillus; Calmodulin; Coffee; DNA, Bacterial; Food Microbiology; Molecular Sequence Data; Seeds; Thailand
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