year 12, Issue 2 (May - June 2018)                   Iran J Med Microbiol 2018, 12(2): 133-139 | Back to browse issues page


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Fateh R, Dehghani pour M, Zaini F, Mahdavi-Ourtakand M, Salehi Z, Ghazanfari M, et al . Evaluation Eucalyptus camaldulensis Contaminations with Cryptococcus gattii in Tehran . Iran J Med Microbiol. 2018; 12 (2) :133-139
URL: http://ijmm.ir/article-1-816-en.html
1- Department of Microbiology and Immunology, School of Medicine, Qom University of Medical Sciences, Qom. Iran
2- Department of Biology, college of Biological Sciences, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
3- Department of Medical Mycology and Parasitology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
4- Department of Biology, School of Biological Sciences, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
5- Department of Mycology, School of Medicine, Tarbiat Modarress University, Tehran, Iran
6- Department of Medical Mycology and Parasitology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
7- Department of Medical Mycology and Parasitology, School of Medicine, Medical University of Kerman, Kerman, Iran
8- Research Center of Pediatric Infectious Diseases, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran , fattahiazam63@gmail.com
Abstract:   (5181 Views)
Background and Aims: Cryptococcosis is an infection caused by Cryptococcus species. Cryptococcus gattii is mostly isolated from Eucalyptus trees and is acquired via inhalation of basidiospores. The present study was performed to isolate Cryptococcus sp. from Eucalyptus trees and evaluate C. gatti contamination of the Eucalyptus camaldulensis trees in some parks of Tehran and Varamin.
Materials and Methods: 88 trees (leaves, stalk, fruit and soil) were collected from different areas of Tehran, Varamin and Shahr Ray in 2014-2015 during spring and fall. Identification of Cryptococcus sp. were performed based on colony color on niger seed agar medium, urease production, india ink test and pseudohyphae formation on corn meal agar with tween 80. Specific differentiation of Cryptococcus sp. were performed using sugar assimilation by API 20C AUX, disk approaches, colony color on Canavanine Glycine Bromothymol Blue and Cycloheximide-Phenol Red Agar medium.
Results and Conclusions: 6 out of 88 samples of Eucalyptus trees were identified as Cryptococcus sp. Accordingly, four species were identified as Cryptococcus albidus while species of two other isolates were not detectable by used methods. Although Cryptococcus gattii was not isolated from the collected samples, this does not mean that Eucalyptus trees of Tehran are not contaminated.
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Type of Study: Original | Subject: Medical Mycology
Received: 2018/02/16 | Accepted: 2018/04/16 | ePublished: 2018/06/30

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