Isolation of keratinophilic fungi from soil in Isfahanprovince, Iran

Objective. — To evaluate the epidemiology of keratophilic fungi in Isfahan province, Iran.Material and methods. — The present research has been conducted on soil samples collected from 16 townships of Isfahan province. For isolate geophilic dermatophytes and keratinophilic fungi, the keratin baiting technique has been applied. Results. — Of 800 soil samples examined, 588 (73.5%) keratinophilic fungi were isolated. The present studied recognized 727 isolates including 16 species of 11 genus, as follows: Chrysosporium keratinophilum (31.4%), C. pannicola (16.9%), C. tropicum (15.4%), Microsporum gypseum (12.4%), Chrysosporium spp. (9.9%), C. indicum (7%), Sepedonium spp. (3.3%), Malbranchia spp. (1%), Trichophyton terrestre (0.8%), T. ajelloi and Paecilomyces lilacinus (0.4%), Engyodontium album and Acremonium spp. (0.3%), Curvularia spp., Fusarium spp. and Ulocladium spp. (0.1%). In this study, E. album was isolated for the first time in this country (Iran). The frequency these keratinophilic fungi are discussed in relation to different agents such as soil pH. Conclusion. — This study contributes to the knowledge of keratophilic fungi in Iran. # 2011 Elsevier Masson SAS. All rights reserve

Surveying the airborne pathogenic fungi in desert area of Ardestan town trip

Background: This study was performed to determine the type and number of the fungus species including saprophyte, opportunistic and pathogen in the salt desert region of Ardestan township in 1375.Materials and methods: This descriptive study was conducted by Petri-dish trapping technique. 9 different locations were selected (saltiferous, salt desert forest, agriculture ground, fruit garden, city space, pigeon space, ranches space, poultry space, and canal wells including wild pigeon). From the first 5 locations 75 samples and from the other 4 locations 40 petri-dish were obtained.Results: Totally, 1051 fungus colonies were counted from 115 petir-dishes. The most common fungi were peniccilium spp., cladosporium spp., aspergillus spp., alternaria spp., and yeasts. Number of fungus colonies were as follow: at the evening 45.5, in the morning 27.7, and at noon 26.8. Canal wells including wild pigeons had shown to have the most variable types of fungi, meanwhile, the biggest yeast colony numbers were isolated form this location. Furthermore, 3 fungus species similar to sporothrix schenchii were isolated from this site.Conclusion: The place of sampling and environmental factors may influence the number and type of fungi in the salt desert region. The biggest fungus colonies were isolated form ranches space and the smallest from salt march regions. Meanwhile, some fungi such as peniccilium spp., cladosporium spp., aspergillus spp., alternaria spp are able to grow even in unsuitable environmental conditions

The First Case of Empyema Necessitatis Sustained by Nocardia Nova in Kidney Transplant Recipient

7nonenoneRostami Z; Cegolon L; Vahedi E; Kashaki M; Kachuei R; Jafari R; Javanbakht MRostami, Z; Cegolon, L; Vahedi, E; Kashaki, M; Kachuei, R; Jafari, R; Javanbakht,

‫‪Original‬ـــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ‬ ‫ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ‪Article‬‬ The antagonistic effects of Candida parapsilosis on the gro

Abstract Background and Purpose: Fusarium species are avid producers of secondary toxic and carcinogenic metabolites such as fumonisin. Contamination of food and feed products with fumonisin can be hazardous to the health of humans and animals and may lead to agricultural loss. Accordingly, in this study, we aimed to evaluate the effects of Candida parapsilosis on the growth and fumonisin production of Fusarium species. Materials & Methods: Mycelial growth rate of 26 Fusarium isolates, including F. verticillioides (n=6), F. proliferatum (n=18), F. solani (n=1), and F. oxysporum (n=1), in the presence of 42 C. parapsilosis strains was investigated by pourplate method. The decline in fumonisin production was measured in co-cultured fungi in coarsely ground maize after four weeks of incubation in the dark at 22°C, using ELISA technique. For data analysis, paired t-test was performed, using SPSS version 20. Results: The mycelial growth and fumonisin production of Fusarium isolates significantly decreased in the presence of C. parapsilosis in comparison with the control cultures (P<0.05). The percentage of mycelial growth inhibition ranged from 56.36% to 74.54%. The minimum and maximum decline in total fumonisin production was 12% and 78%, respectively. F. oxysporum and F. solani were found to be minor fumonisin producers among the studied Fusarium species. On the other hand, a decline was reported in the growth of Fusarium species and fumonisin production in the presence of C. parapsilosis. Conclusion: C. parapsilosis showed notable inhibitory activities against Fusarium isolates. Therefore, this fungal species could be considered as a biocontrol agent against the growth and fumonisin production of toxigenic Fusarium species in the future

Fatal necrotising cutaneous mucormycosis due to novel Saksenaea species: A case study

This case report describes the progressive wound infection in the left thigh of a 34-year-old man due to an old landmine explosion. The infection developed into rapidly spreading skin and soft tissue necrotising Saksenaea infection, despite antifungal therapy and surgical debridement. The report provides evidence that Saksenaea spp. should be added to the list of mucoralean fungi that can cause severe necrotising infection. It also highlights the need for improved early diagnostic procedures and enhanced understanding of Saksenaea virulence factors that contribute to necrotising infection. Declaration of interest: The authors have no conflicts of interest to declare. © 2021 MA Healthcare Ltd. All rights reserved