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Formation of sclerotia and production of indoloterpenes by Aspergillus niger and other species in section Nigri

Frisvad, Jens C ; Petersen, Lene M ; Lyhne, E Kirstine ; Larsen, Thomas O McCluskey, Kevin

PloS one, 2014-04, Vol.9 (4), p.e94857-e94857 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
Formation of sclerotia and production of indoloterpenes by Aspergillus niger and other species in section Nigri
Autor: Frisvad, Jens C ; Petersen, Lene M ; Lyhne, E Kirstine ; Larsen, Thomas O
McCluskey, Kevin
Assuntos: Agar ; Analysis ; Aspergillus ; Aspergillus carbonarius ; Aspergillus niger ; Aspergillus niger - cytology ; Aspergillus niger - genetics ; Aspergillus niger - metabolism ; Biology ; Biology and Life Sciences ; Chromatography ; Cultivation ; Culture media ; Food safety ; Fungi ; Gene clusters ; Growth media ; Liquid chromatography ; Media (culture) ; Metabolites ; Multigene Family ; Mutation ; Mycelium - metabolism ; Nucleotide sequence ; Penicillium ; Physical Sciences ; Plant metabolites ; Raisins ; Research and Analysis Methods ; Sclerotia ; Secondary metabolites ; Species ; Species Specificity ; Spectrometry ; Terpenes - chemistry ; Terpenes - metabolism ; Yeast
É parte de: PloS one, 2014-04, Vol.9 (4), p.e94857-e94857
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Competing Interests: The authors have declared that no competing interests exist.
Conceived and designed the experiments: JCF LMP EKL TOL. Performed the experiments: JCF LMP EKL. Analyzed the data: JCF LMP TOL. Contributed reagents/materials/analysis tools: JCF LMP EKL TOL. Wrote the paper: JCF. Read and improved the draft paper: JCF LMP EKL TOL.
Descrição: Several species in Aspergillus section Nigri have been reported to produce sclerotia on well-known growth media, such as Czapek yeast autolysate (CYA) agar, with sclerotia considered to be an important prerequisite for sexual development. However Aspergillus niger sensu stricto has not been reported to produce sclerotia, and is thought to be a purely asexual organism. Here we report, for the first time, the production of sclerotia by certain strains of Aspergillus niger when grown on CYA agar with raisins, or on other fruits or on rice. Up to 11 apolar indoloterpenes of the aflavinine type were detected by liquid chromatography and diode array and mass spectrometric detection where sclerotia were formed, including 10,23-dihydro-24,25-dehydroaflavinine. Sclerotium induction can thus be a way of inducing the production of new secondary metabolites from previously silent gene clusters. Cultivation of other species of the black aspergilli showed that raisins induced sclerotium formation by A. brasiliensis, A. floridensis A. ibericus, A. luchuensis, A. neoniger, A. trinidadensis and A. saccharolyticus for the first time.
Editor: United States: Public Library of Science
Idioma: Inglês

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Formation of sclerotia and production of indoloterpenes by Aspergillus niger and other species in section Nigri

Frisvad, Jens C ; Petersen, Lene M ; Lyhne, E Kirstine ; Larsen, Thomas O McCluskey, Kevin

United States: Public Library of Science

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