Evidence map›Paper›PMID 20632114›Full record

ArticleMolecular biology reports2011

Gamma radiation induced mutagenesis in Aspergillus niger to enhance its microbial fermentation activity for industrial enzyme production.

M Siddique Awan, Nabila Tabbasam, N Ayub, M E Babar, Mehboob-ur-Rahman, Shahid Mahboob Rana, M I Rajoka

Abstract read
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In one paragraph

Article in Molecular biology reports, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.0field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 54 citations in OpenAlex.

  1. Optimization of fermentation parameters and mutagenesis of Glarea lozoyensis ATCC 20868 towards pneumocandin BBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
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  5. Exploiting the exceptional biosynthetic potency of the endophyticSaudi journal of biological sciences · 2022
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  6. Vaccines · 2021
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  9. Overproduction of Glucose Oxidase byBioMed research international · 2020
    Article
  10. Article
  11. Article
  12. Article
  13. Application of radiation technology in vaccines development.Clinical and experimental vaccine research · 2015
    Review
  14. Article
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

M Siddique AwanDepartment of Food Technology, Faculty of Agriculture, University of Azad Jammu & Kashmir Rawalakot, Rawalakot, Pakistan.
Nabila Tabbasam
N Ayub
M E Babar
Mehboob-ur-Rahman
Shahid Mahboob Rana
M I Rajoka
National Institute for Biotechnology and Genetic Engineering · PKGovernment College University, Faisalabad · PKQuaid-i-Azam University · PKUniversity of Veterinary and Animal Sciences · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

α- and β-Galactosidases find application in food processing, health and nutrition. Aspergillus niger is one of the potent producer of these enzymes and was genotypically improved using gamma-ray induced mutagenesis. The mutant-derivative produced two-fold higher α- and β-galactosidases. For testing genetic variability and its relationship with phenotypic properties of the two organisms, DNA samples of the mutant and parental strains of A. niger were amplified with 28 deca-nucleotide synthetic primers. RAPD analysis showed significantly different pattern between parental and mutant cultures. The mutant derivative yielded homogeneous while parental strain formed heterogeneous amplification patterns. Seven primers identified 42.9% polymorphism in the amplification products, indicating that these primers determined some genetic variability between the two strains. Thus RAPD was found to be an efficient technique to determine genetic variability in the mutant and wild organisms. Both wild and mutant strains were analyzed for their potential to produce galactosidases. Comparison of different carbon sources on enzyme yield revealed that wheat bran is significant (P < 0.01) effective producer and economical source followed by rice bran, rice polishing and lactose. The mutant was significantly better enzyme producer and could be considered for its prospective application in food, nutrition and health and that RAPD can be effectively used to differentiate mutant strain from the parental strain based on the RAPD patterns.

Indexed as

MutagenesisAspergillus nigerCulture MediaDNAFermentationGalactosidasesGamma RaysGenetic VariationIndustrial MicrobiologyKineticsMutagenesis, Site-DirectedMutationPolymorphism, GeneticRandom Amplified Polymorphic DNA TechniqueThermodynamicsCulture MediaDNAGalactosidases

Identifiers

PMID20632114
OpenAlexW2045905629

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.