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Selective isolation of agents of chromoblastomycosis from insect-associated environmental sources
Fungal Biology ( IF 2.5 ) Pub Date : 2020-03-01 , DOI: 10.1016/j.funbio.2020.02.002
Bruna Jacomel Favoreto de Souza Lima 1 , Morgana Ferreira Voidaleski 1 , Renata Rodrigues Gomes 1 , Gheniffer Fornari 2 , Jade Mariane Barbosa Soares 3 , Amanda Bombassaro 1 , Gabriela Xavier Schneider 1 , Bruna da Silva Soley 4 , Conceição de Maria Pedrozo E Silva de Azevedo 5 , Cristiano Menezes 6 , Leandro Ferreira Moreno 7 , Derlene Attili-Angelis 8 , Débora do Rocio Klisiowicz 1 , Sybren de Hoog 9 , Vânia Aparecida Vicente 1
Affiliation  

Chromoblastomycosis is a neglected disease characterized by cutaneous, subcutaneous or disseminated lesions. It is considered an occupational infectious disease that affects mostly rural workers exposed to contaminated soil and vegetal matter. Lesions mostly arise after a traumatic inoculation of herpotrichiellaceous fungi from the Chaetothyriales order. However, the environmental niche of the agents of the disease remains obscure. Its association with insects has been predicted in a few studies. Therefore, the present work aimed to analyze if social insects, specifically ants, bees, and termites, provide a suitable habitat for the fungi concerned. The mineral oil flotation method was used to isolate the microorganisms. Nine isolates were recovered and phylogenetic analysis identified two strains as potential agents of chromoblastomycosis, i.e., Fonsecaea pedrosoi CMRP 3076, obtained from a termite nest (n = 1) and Rhinocladiella similis CMRP 3079 from an ant exoskeleton (n = 1). In addition, we also identified Fonsecaea brasiliensis CMRP 3445 from termites (n = 1), Exophiala xenobiotica CMRP 3077 from ant exoskeleton (n = 1), Cyphellophoraceae CMRP 3103 from bees (n = 1), Cladosporium sp. CMRP 3119 from bees (n = 1), Hawksworthiomyces sp. CMRP 3102 from termites (n = 1), and Cryptendoxyla sp. from termites (n = 2). The environmental isolate of F. pedrosoi CMRP 3076 was tested in two animal models, Tenebrio molitor and Wistar rat, for its pathogenic potential with fungal retention in T. molitor tissue. In the Wistar rat, the cells resembling muriform cells were observed 30 d after inoculation.

中文翻译:

从昆虫相关环境来源中选择性分离色芽生菌病病原体

色芽生菌病是一种被忽视的疾病,其特征是皮肤、皮下或播散性病变。它被认为是一种职业传染病,主要影响接触受污染土壤和植物物质的农村工人。损伤主要发生在外伤性接种毛球孢菌目中的herpotrichiellogue 真菌后。然而,该疾病病原体的环境生态位仍然模糊不清。一些研究预测了它与昆虫的关联。因此,目前的工作旨在分析社会昆虫,特别是蚂蚁、蜜蜂和白蚁,是否为相关真菌提供合适的栖息地。采用矿物油浮选法分离微生物。回收了 9 个分离株,系统发育分析确定了两种菌株是色素芽生菌病的潜在病原体,即,Fonsecaea pedrosoi CMRP 3076,来自白蚁巢穴 (n = 1) 和 Rhinocladiella similis CMRP 3079,来自蚂蚁外骨骼 (n = 1)。此外,我们还鉴定了来自白蚁的 Fonsecaea brasiliensis CMRP 3445(n = 1)、来自蚂蚁外骨骼的 Exophiala xenobiotica CMRP 3077(n = 1)、来自蜜蜂的 Cyphellophoraceae CMRP 3103(n = 1)、枝孢菌属。CMRP 3119 来自蜜蜂(n = 1),Hawksworthiomyces sp。来自白蚁 (n = 1) 和 Cryptendoxyla sp. 的 CMRP 3102。来自白蚁 (n = 2)。在两种动物模型(黄粉虫和 Wistar 大鼠)中测试了 F. pedrosoi CMRP 3076 的环境分离物的致病潜力,真菌在黄粉虫组织中滞留。在Wistar大鼠中,接种后30天观察到类似鼠形细胞的细胞。从白蚁巢穴 (n = 1) 和来自蚂蚁外骨骼的 Rhinocladiella similis CMRP 3079 (n = 1) 中获得。此外,我们还鉴定了来自白蚁的 Fonsecaea brasiliensis CMRP 3445(n = 1)、来自蚂蚁外骨骼的 Exophiala xenobiotica CMRP 3077(n = 1)、来自蜜蜂的 Cyphellophoraceae CMRP 3103(n = 1)、枝孢菌属。CMRP 3119 来自蜜蜂(n = 1),Hawksworthiomyces sp。来自白蚁 (n = 1) 和 Cryptendoxyla sp. 的 CMRP 3102。来自白蚁 (n = 2)。在两种动物模型(黄粉虫和 Wistar 大鼠)中测试了 F. pedrosoi CMRP 3076 的环境分离物的致病潜力,真菌在黄粉虫组织中滞留。在Wistar大鼠中,接种后30天观察到类似鼠形细胞的细胞。从白蚁巢穴 (n = 1) 和来自蚂蚁外骨骼的 Rhinocladiella similis CMRP 3079 (n = 1) 中获得。此外,我们还鉴定了来自白蚁的 Fonsecaea brasiliensis CMRP 3445(n = 1)、来自蚂蚁外骨骼的 Exophiala xenobiotica CMRP 3077(n = 1)、来自蜜蜂的 Cyphellophoraceae CMRP 3103(n = 1)、枝孢菌属。CMRP 3119 来自蜜蜂(n = 1),Hawksworthiomyces sp。来自白蚁 (n = 1) 和 Cryptendoxyla sp. 的 CMRP 3102。来自白蚁 (n = 2)。F. pedrosoi CMRP 3076 的环境分离物在两种动物模型(黄粉虫和 Wistar 大鼠)中进行了测试,以确定其在黄粉虫组织中真菌滞留的致病潜力。在Wistar大鼠中,接种后30天观察到类似鼠形细胞的细胞。来自蚂蚁外骨骼的 Exophiala xenobiotica CMRP 3077(n = 1),来自蜜蜂的 Cyphellophoraceae CMRP 3103(n = 1),枝孢菌属。CMRP 3119 来自蜜蜂(n = 1),Hawksworthiomyces sp。来自白蚁 (n = 1) 和 Cryptendoxyla sp. 的 CMRP 3102。来自白蚁 (n = 2)。在两种动物模型(黄粉虫和 Wistar 大鼠)中测试了 F. pedrosoi CMRP 3076 的环境分离物的致病潜力,真菌在黄粉虫组织中滞留。在Wistar大鼠中,接种后30天观察到类似鼠形细胞的细胞。来自蚂蚁外骨骼的 Exophiala xenobiotica CMRP 3077(n = 1),来自蜜蜂的 Cyphellophoraceae CMRP 3103(n = 1),枝孢菌属。CMRP 3119 来自蜜蜂(n = 1),Hawksworthiomyces sp。来自白蚁 (n = 1) 和 Cryptendoxyla sp. 的 CMRP 3102。来自白蚁 (n = 2)。在两种动物模型(黄粉虫和 Wistar 大鼠)中测试了 F. pedrosoi CMRP 3076 的环境分离物的致病潜力,真菌在黄粉虫组织中滞留。在Wistar大鼠中,接种后30天观察到类似鼠形细胞的细胞。pedrosoi CMRP 3076 在两种动物模型(黄粉虫和 Wistar 大鼠)中进行了测试,以确定其在黄粉虫组织中真菌滞留的致病潜力。在Wistar大鼠中,接种后30天观察到类似鼠形细胞的细胞。pedrosoi CMRP 3076 在两种动物模型(黄粉虫和 Wistar 大鼠)中进行了测试,以确定其在黄粉虫组织中真菌滞留的致病潜力。在Wistar大鼠中,接种后30天观察到类似鼠形细胞的细胞。
更新日期:2020-03-01
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