Aspergillus tubingensis and Aspergillus niger as the dominant black Aspergillus , use of simple PCR-RFLP for preliminary differentiation

2016 ◽  
Vol 26 (1) ◽  
pp. 9-16 ◽  
Author(s):  
H. Mirhendi ◽  
F. Zarei ◽  
M. Motamedi ◽  
S. Nouripour-Sisakht
Keyword(s):  
Aspergillus Niger ◽  
Aspergillus Tubingensis ◽  
Pcr Rflp ◽  
Dominant Black

Isolation and Sequencing of a New Glucoamylase Gene from an Aspergillus niger Aggregate Strain (DSM 823) Molecularly Classified as Aspergillus tubingensis

2005 ◽  
Vol 88 (3-4) ◽  
pp. 267-275 ◽  
Author(s):  
Friederike Manger-Jacob ◽  
Tobias Müller ◽  
Martina Janssen ◽  
Milan Höfer ◽  
Udo Hölker
Keyword(s):  
Aspergillus Niger ◽  
Aspergillus Tubingensis ◽  
Glucoamylase Gene

Distribution and Mycotoxigenic Potential of Aspergillus Section Nigri Species in Naturally Contaminated Almonds

2013 ◽  
Vol 76 (4) ◽  
pp. 702-706 ◽  
Author(s):  
JEFFREY D. PALUMBO ◽  
TERESA L. O'KEEFFE
Keyword(s):  
Aspergillus Niger ◽  
Ochratoxin A ◽  
Aspergillus Species ◽  
Aspergillus Awamori ◽  
Aspergillus Tubingensis ◽  
Aspergillus Section Nigri ◽  
Total Potential ◽  
Fumonisin B2 ◽  
Low Levels ◽  
Aspergillus Section

In a previous study, inedible almond pick-out samples were assayed for aflatoxin and aflatoxigenic Aspergillus species. These samples contained high populations of black-spored Aspergillus section Nigri species. To investigate whether these species may contribute to the total potential mycotoxin content of almonds, Aspergillus section Nigri strains were isolated from these samples and assayed for ochratoxin A (OTA) and fumonisin B2 (FB2). The majority of isolates (117 strains, 68%) were identified as Aspergillus tubingensis, which do not produce either mycotoxin. Of the 47 Aspergillus niger and Aspergillus awamori isolates, 34 strains (72%) produced FB2 on CY20S agar, and representative strains produced lower but measurable amounts of FB2 on almond meal agar. No OTA-producing strains of Aspergillus section Nigri were detected. Almond pick-out samples contained no measurable FB2, suggesting that properly dried and stored almonds are not conducive for FB2 production by resident A. niger and A. awamori populations. However, 3 of 21 samples contained low levels (<1.5 ng/g) of OTA, indicating that sporadic OTA contamination may occur but may be caused by OTA-producing strains of other Aspergillus species.

scholarly journals Comparative analysis of the complete mitochondrial genomes of Aspergillus niger mtDNA type 1a and Aspergillus tubingensis mtDNA type 2b

2008 ◽  
Vol 281 (1) ◽  
pp. 51-57 ◽  
Author(s):  
ÁKos Juhász ◽  
Ilona Pfeiffer ◽  
Andrea Keszthelyi ◽  
Judit Kucsera ◽  
Csaba Vágvölgyi ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Aspergillus Niger ◽  
Mitochondrial Genomes ◽  
Aspergillus Tubingensis ◽  
Complete Mitochondrial Genomes

scholarly journals Erratum to: Isolation and sequencing of a new glucoamylase gene from an Aspergillus niger aggregate strain (DSM 823) molecularly classified as Aspergillus tubingensis

2006 ◽  
Vol 89 (1) ◽  
pp. 209-209
Author(s):  
Friederike Manger-Jacob ◽  
Tobias Müller ◽  
Martina Janssen ◽  
Milan Höfer ◽  
Udo Hölker
Keyword(s):  
Aspergillus Niger ◽  
Aspergillus Tubingensis ◽  
Glucoamylase Gene
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