Furthermore, in vitro susceptibility profiles for antifungal drugs using CLSI microbroth dilution method (M38-A2) were studied.

C646 cost Additionally, the susceptibility of posaconazole and amphotericin B obtained by CLSI method was compared with those obtained by Etest method. A total of 80 isolates originating from 71 patients admitted to six tertiary care hospitals in Delhi/New Delhi were investigated during 2004–2013. Additionally, eight reference/type strains were included for the AFLP and ITS phylogenetic analysis comprising Rhizopus arrhizus var. delemar CBS 120.12T, R. arrhizus var. arrhizus CBS 112.07T, R. microsporus var. chinensis CBS 294.31T, R. microsporus var. tuberosus CBS 113206, R. azygosporus CBS 357.93T; Syncephalastrum racemosum CBS 213.78T, CBS 199.81, CBS 302.65. All isolates including reference strains were Selleck Natural Product Library subcultured on potato dextrose agar (PDA) at 28 °C for purity and were stocked in glycerol at −70 °C. Table 1 shows the distribution of clinical specimens processed, which included tissue biopsy specimens, CT-guided fine needle aspirates, nasal washings, sinus-aspirates, tissue from sinuses, surgically debrided nasal mass, skin scrapings/biopsy, bronchoalveolar lavage and endotracheal aspirate. Direct microscopic

KOH wet mounts of all the specimens showed the presence of aseptate hyphae. Also, all the cases were confirmed by histopathology using haematoxylin and eosin and Gomori methenamine silver-stained Idelalisib in vitro tissue

sections. The specimens were inoculated on Sabouraud’s glucose agar plates with chloramphenicol for a week at 28 °C. The macroscopic and microscopic morphological features of the isolates were studied following the standard procedures such as slide culture on PDA and growth at 37, 40, 45 and 50 °C. The isolates that failed to sporulate after 1 week of incubation were subcultured on 2% water agar for induction of sporulation.[24] Apophysomyces variabilis (n = 2) Apophysomyces elegans (n = 2) Molecular identification was done by sequencing the ribosomal DNA ITS region. However, isolates of Syncephalastrum which did not amplify with the ITS primers were identified using the larger subunit (LSU) region of D1/D2. DNA extraction was done as described previously.[25] The extracted DNA was subjected to amplification of the ITS region with established primers ITS1 and ITS4 for ITS region amplification and primers NL1 and NL4 for LSU region amplification.[26, 27] The amplicons of both the regions were purified (Wizard SV Gel and PCR Clean-up System; Promega, Fitchburg, WI, USA) and sequenced. The sequencing reactions were carried out by using the cycle sequencing kit (BigDye Terminator v3.1 cycle sequencing kit RR100; Applied Biosystems, Foster City, CA, USA). The final products were sequenced on an ABI 3130xL Genetic analyzer (Applied Biosystems).