Anais brasileiros de dermatologia · 2024
Piedraia hortae: biofilm formation and its importance in the pathogenesis of Piedra nigra (black piedra).
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Almeida Junior Hiram Larangeira de, Assis Thales Moura de, Faria Eduardo Camargo, Costa Luiz Roberto Kramer, Ibaldo Berenice Marques
Аннотация
BACKGROUND: Little is known about the ultrastructure of Piedraia hortae.
OBJECTIVE: To examine a P. hortae colony with scanning electron microscopy and investigate possible contributions to its the pathogenesis of black piedra.
RESULTS: On low magnifications, two distinct aspects of the colony are identified, a compact area and a filamentous area. Analysis of the filamentous area demonstrates hyphae adhered by a thin reticular substance. A recurring finding is the adhesion between the fungal filaments in parallel. On high magnifications, the microfibrillar substance adhering the hyphae to each other becomes very evident. Examination of the compact area shows the hyphae embedded in the reticular matrix forming a biofilm and the colony well adhered. On high magnification, it can be observed that the hyphae are within this fibrillar matrix, which has the same appearance as the filamentous substance that adheres the hyphae to each other.
STUDY LIMITATIONS: Only one strain was examined.
CONCLUSIONS: The formation of biofilm with fungal structures and reticulated extracellular substance is important in the pathogenesis of black piedra.
OBJECTIVE: To examine a P. hortae colony with scanning electron microscopy and investigate possible contributions to its the pathogenesis of black piedra.
RESULTS: On low magnifications, two distinct aspects of the colony are identified, a compact area and a filamentous area. Analysis of the filamentous area demonstrates hyphae adhered by a thin reticular substance. A recurring finding is the adhesion between the fungal filaments in parallel. On high magnifications, the microfibrillar substance adhering the hyphae to each other becomes very evident. Examination of the compact area shows the hyphae embedded in the reticular matrix forming a biofilm and the colony well adhered. On high magnification, it can be observed that the hyphae are within this fibrillar matrix, which has the same appearance as the filamentous substance that adheres the hyphae to each other.
STUDY LIMITATIONS: Only one strain was examined.
CONCLUSIONS: The formation of biofilm with fungal structures and reticulated extracellular substance is important in the pathogenesis of black piedra.