Dataset Information

A peculiar case of onychomycosis caused by Cladosporium halotolerans.

ABSTRACT: A 49-year-old patient with changes in the nails of the hallux for 10 years was diagnosed with onychomycosis. The identity of the causative agent was confirmed as Cladosporium halotolerans from the Cladosporium sphaerospermum species complex using molecular techniques. MALDI-TOF identified the agent as C. sphaerospermum complex species. Overall, species such as onychomycosis agents should attract special attention to avoid mistakes in the identification process while considering a probable contaminant as responsible for the disease. These species deserve attention since there are rare descriptions of them as causes of onychomycosis. It is important to recognize them as causes of disease and not just as a probable contaminant.

SUBMITTER: Santana GNP

PROVIDER: S-EPMC10691314 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Publications

A peculiar case of onychomycosis caused by Cladosporium halotolerans.

Santana Gilglécia Novaes Pereira GNP Neff Catarina Glauce Martins CGM Petri Valeria V Fernandes Fernanda Aparecida Vieira FAV Gompertz Olga Fischman OF Bello Marina de Moura MM Monteiro Ruan Campos RC Matta Daniel Archimedes Da DAD Ogawa Marília Marufuji MM Moura Luis Henrique Barbizan de LHB Trindade Mário Roberto de Sousa MRS Jordão Neto Domingos D Camargo Zoilo Pires de ZP

Einstein (Sao Paulo, Brazil) 20231117

A 49-year-old patient with changes in the nails of the hallux for 10 years was diagnosed with onychomycosis. The identity of the causative agent was confirmed as Cladosporium halotolerans from the Cladosporium sphaerospermum species complex using molecular techniques. MALDI-TOF identified the agent as C. sphaerospermum complex species. Overall, species such as onychomycosis agents should attract special attention to avoid mistakes in the identification process while considering a probable contam ...[more]

PMID: 37991090

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Project description:Microbial volatiles have beneficial roles in the agricultural ecological system, enhancing plant growth and inducing systemic resistance against plant pathogens without being hazardous to the environment. The interactions of plant and fungal volatiles have been extensively studied, but there is limited research specifically elucidating the effects of distinct volatile organic compounds (VOCs) on plant growth promotion. The current study was conducted to investigate the impact of VOCs from Cladosporium halotolerans NGPF1 on plant growth, and to elucidate the mechanisms for the plant growth-promoting (PGP) activity of these VOCs. The VOCs from C. halotolerans NGPF1 significantly promoted plant growth compared with the control, and this PGP activity of the VOCs was culture medium-dependent. Headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS) identified two VOC structures with profiles that differed depending on the culture medium. The two compounds that were only produced in potato dextrose (PD) medium were identified as 2-methyl-butanal and 3-methyl-butanal, and both modulated plant growth promotion and root system development. The PGP effects of the identified synthetic compounds were analyzed individually and in blends using N. benthamiana plants. A blend of the two VOCs enhanced growth promotion and root system development compared with the individual compounds. Furthermore, real-time PCR revealed markedly increased expression of genes involved in auxin, expansin, and gibberellin biosynthesis and metabolism in plant leaves exposed to the two volatile blends, while cytokinin and ethylene expression levels were decreased or similar in comparison with the control. These findings demonstrate that naturally occurring fungal VOCs can induce plant growth promotion and provide new insights into the mechanism of PGP activity. The application of stimulatory volatiles for growth enhancement could be used in the agricultural industry to increase crop yield.

Dataset Information

A peculiar case of onychomycosis caused by Cladosporium halotolerans.

Publications

A peculiar case of onychomycosis caused by Cladosporium halotolerans.

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