Intra- and interspecific cross combinations between the tetraploid treefrog Hyla versicolor, and between H. versicolor and the diploid treefrog Hyla chrysoscelis were performed. Progeny phenotypes resulting from these crosses were examined electrophoretically using a polymorphic glutamate oxaloacetic transaminase (GOT-1) locus, to determine the mechanism of chromosome segregation in H. versicol...

Extremophiles are considered a cornucopian source of chemically diverse and often novel metabolites. Determination of their growth and distribution pattern and their chemical nature is therefore vital to fully gauge their existential uniqueness and potential as a fount of novel compounds. Present study deals with growth characterization and chemoprofiling of halophilic fungi inhabiting a hither...

BACKGROUND Trametes versicolor (Yun-Zhi) is a medicinal fungus used as a chemotherapy co-treatment to enhance anti-tumor immunity. Although the efficacies of T. versicolor extracts have been documented, the active ingredients and mechanisms underlying the actions of these extracts remain uncharacterized. RESULTS We purified a new protein, YZP, from the fruiting bodies of T. versicolor and ide...

Differences in host behavior and resistance to disease can influence the outcome of host-pathogen interactions. We capitalized on the variation in aggregation behavior of Fowler's toads (Anaxyrus [ = Bufo] fowleri) and grey treefrogs (Hyla versicolor) tadpoles and tested for differences in transmission of Batrachochytrium dendrobatidis (Bd) and host-specific fitness consequences (i.e., life his...

Background: Tinea versicolor is a common superficial mycosis, which is caused by lipophilic yeasts, malessezia furfur. It is a chronic and recurrent skin disease. It occurs most commonly in young post-pubertal people and in hot and humid climates (North and south provinces of Iran). Objective: Comparison of effects of ketoconazole 2% shampoo (Shafa Lab) with selenium sulfide 2.5% shampoo on tin...

Hypoglycemic effects of exo-biopolymers (EBP) produced by submerged mycelial cultures of Coriolus versicolor, Cordyceps sinensis, Paecilomyces japonica, Armillariella mellea, and Fomes fomentarius were investigated in streptozotocin (STZ)-induced diabetic rats. The rats from each experimental group were orally administered with EBPs (100 mg/kg BW) daily for 2 weeks. Though the hypoglycemic effe...

β-tubulin, calmodulin, internal transcribed spacer and partial lsu-rDNA, RNA polymerase 2, DNA replication licensing factor Mcm7, and pre-rRNA processing protein Tsr1 were amplified and sequenced from numerous isolates belonging to Aspergillus sect. versicolor. The isolates were analyzed phylogenetically using the concordance model to establish species boundaries. Aspergillus austroafricanus, A...

Sound-producing muscles provide the opportunity of studying the limits of power production at high contractile frequencies. We used the work loop technique to determine the power available from the external oblique muscles in two related species of North American gray tree frog, Hyla chrysoscelis and Hyla versicolor. These trunk muscles contract cyclically, powering high-intensity sound product...

OBJECTIVES The main objective was analysis and assessment of toxinogenic capabilities of fungi isolated from moldy surfaces in residential rooms in an urban agglomeration situated far from flooded areas in moderate climate zone. MATERIAL AND METHODS The assessment of environmental exposure to mycotoxins was carried out in samples collected from moldy surfaces in form of scrapings and airborne...