Biology and Medicine

Abdel-Nasser Zohri

Publications

• Research Article
  Impact of Enzymes and Toxins Potentiality of Four Aspergillus Species to Cause Aspergillosis
  Author(s): Abdel-Nasser Zohri, M Bassam Aboul-Nasr, Mohamed Adam, Mohamed A Mustafa and Enas Mahmoud AmerAbdel-Nasser Zohri, M Bassam Aboul-Nasr, Mohamed Adam, Mohamed A Mustafa and Enas Mahmoud Amer
  
  Aspergillus species are the main causing agents of invasive apergillosis chest disease. Eighty isolates of Aspergillus species, A. flavus (20), A. fumigatus (15), A. niger (30) and A. terreus (15 isolates), previously isolated and identified from aspergillosis suspected patients at our lab in Assiut university hospitals, were assayed for their enzymes and toxins profile. The results revealed that, all of the tested isolates were able to utilize calf lung tissue and produce catalase and peroxidase enzymes. Meanwhile, 82.5-90% of the fungal isolates had the ability to produce protease, lipase, urease and phospholipase, whereas, 70% of isolates exhibited hemolytic activities. Thin layer chromatography (TLC) of the cleaned extracts of the tested isolates exhibited the ability of all A. flavus isolates assayed to produce aflatoxins B1 and G1, 53%, moreover, A. fumigatus isolates produced f.. View More»
  DOI: 10.4172/0974-8369.1000409

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