Allergic fungal sinusitis (AFS) has been recognized as an important cause of chronic sinusitis commonly caused by Aspergillus spp. and various dematiaceous fungi like Bipolaris, Alternaria, Curvalaria, and etc. Ulocladium botrytis is a non pathogenic environmental dematiaceous fungi, which has been recently described as a human pathogen. Ulocladium has never been associated with allergic fungal...

Allergic fungal sinusitis (AFS) is believed to represent a hypersensitivity reaction to fungal antigens. The pathophysiology of AFS is still not clearly understood. It is believed that it is not a true fungal infection, but an allergic response to fungal organisms that have colonized the sinus mucosa and secondarily cause a hypersensitivity reaction in the host. However, some patients with AFS ...

A new species of Cataractispora, C. receptaculorum, is described from freshwater habitats. This species is characterized by triseptate verruculose ascospores and polar appendages that unfurl in water. The ascospores lack polar chambers that enclose the appendages as in C. bipolaris and C. viscosa. An ultrastructural study of this species revealed that the ascus wall and apical ring of this spec...

A new species of Cataractispora, C. receptaculorum, is described from freshwater habitats. This species is characterized by triseptate verruculose ascospores and polar appendages that unfurl in water. The ascospores lack polar chambers that enclose the appendages as in C. bipolaris and C. viscosa. An ultrastructural study of this species revealed that the ascus wall and apical ring of this spec...

OBJECTIVE This study investigated allergic fungal rhinosinusitis cases, and aimed to compare the detection of fungi in sinus aspirate by culture and by polymerase chain reaction assay, and to relate the presence of fungi in the nasal sinuses to the type of fungal allergen causing disease. METHODS Sixty-eight cases of allergic fungal rhinosinusitis underwent fungal culture and polymerase chain...

A possible strategy to control plant pathogens is the improvement of natural plant defense mechanisms against the tools that pathogens commonly use to penetrate and colonize the host tissue. One of these mechanisms is represented by the host plant's ability to inhibit the pathogen's capacity to degrade plant cell wall polysaccharides. Polygalacturonase-inhibiting proteins (PGIP) are plant defen...