Development of sequence-characterized amplified region (SCAR) markers for accurate and differential identification of multienzyme-producing and non-enzymatic Aspergillus strains of industrial importance

Aspergillus strains are known to produce multiple enzymes of industrial importance. To screen  Aspergillus  isolates and select a strain with the ability to produce multiple enzymes and discriminate it from non-enzymatic strains, a rapid and accurate approach is required. With this background, a DNA...

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Veröffentlicht in:Archives of microbiology 2023-01, Vol.205 (1), p.2-2, Article 2
Hauptverfasser: Ashwini, Shankar, Bhavani, Peddayelachagiri Venkataswamachari, Deepa, Nagaraj, Sowmya, Nagaraj, Raghavendra, Maddur Puttaswamy
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Sprache:eng
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Zusammenfassung:Aspergillus strains are known to produce multiple enzymes of industrial importance. To screen  Aspergillus  isolates and select a strain with the ability to produce multiple enzymes and discriminate it from non-enzymatic strains, a rapid and accurate approach is required. With this background, a DNA fingerprinting-based study was conducted to develop a simple but accurate molecular detection method with the potential to discriminate multienzyme-producing Aspergillus strains from non-enzymatic strains, irrespective of species. To achieve this, Enterobacterial Repetitive Intergenic Consensus (ERIC) PCR was employed to derive group-specific Sequence Characterized Amplified Region (SCAR) markers (i.e., markers corresponding to PCR amplicons of known DNA sequence). To this end, both group-specific (multienzyme-producing and non-enzymatic  Aspergillus  group) SCAR markers were sought by comparing the ERIC fingerprint profiles and used to develop primers for use in specific and differential identification of multienzyme-producing  Aspergillus  isolates. As an outcome, the two SCAR-PCR formats were developed. One format is for specific identification of multienzyme-producing  Aspergillus  strains (SCAR-PCR1), and the other for identifying non-enzymatic  Aspergillus  strains (SCAR-PCR2). Both SCAR-PCRs were able to discriminate between these two contrasting groups. These formats are simple but accurate and rapid compared to the time-consuming and laborious conventional methods. Therefore, they could be efficient as an alternative strategy for the high-throughput screening of industrially important  Aspergillus  strains.
ISSN:0302-8933
1432-072X
DOI:10.1007/s00203-022-03340-8