Fungos anemófilos isolados de bibliotecas de instituições de ensino da Região Nordeste do Brasil

Davi Porfirio da Silva; Rodrigo José Nunes Calumby; Lais Nicolly Ribeiro da Silva; Jayane Omena de Oliveira; José Rafaelly Gaia de Sousa; Delane Cristina da Silva; Rossana Teotônio de Farias Moreira; Maria Anilda dos Santos Araújo

doi:10.5123/S2176-6223202000769

Authors

Davi Porfirio da Silva Universidade Federal de Alagoas, Maceió, Alagoas, Brasil http://orcid.org/0000-0002-1856-4512
Rodrigo José Nunes Calumby Universidade Federal de Alagoas, Maceió, Alagoas, Brasil http://orcid.org/0000-0002-2313-5552
Lais Nicolly Ribeiro da Silva Universidade Federal de Alagoas, Maceió, Alagoas, Brasil http://orcid.org/0000-0003-4300-838X
Jayane Omena de Oliveira Universidade Federal de Alagoas, Maceió, Alagoas, Brasil http://orcid.org/0000-0003-2830-9379
José Rafaelly Gaia de Sousa Centro Universitário Cesmac, Maceió, Alagoas, Brasil http://orcid.org/0000-0002-7369-4432
Delane Cristina da Silva Centro Universitário Cesmac, Maceió, Alagoas, Brasil http://orcid.org/0000-0003-4778-3252
Rossana Teotônio de Farias Moreira Universidade Federal de Alagoas, Maceió, Alagoas, Brasil http://orcid.org/0000-0002-0881-1997
Maria Anilda dos Santos Araújo Centro Universitário Tiradentes, Maceió, Alagoas, Brasil http://orcid.org/0000-0002-9833-4265

DOI:

https://doi.org/10.5123/S2176-6223202000769

Keywords:

Fungi, Microbial Colony Count, Libraries

Abstract

ABSTRACT

INTRODUCTION:

Studies on airborne mycobiota from libraries show a wide variety of fungi, including those potentially pathogenic, offering occupational risk and allergic manifestations to their visitors.

OBJECTIVE:

To evaluate the occurrence of anemophilous fungi in libraries of educational institutions of basic and higher education in the city of Maceió, Alagoas State, Brazil.

MATERIALS AND METHODS:

Samples of the air were obtained from the exposure of 55 Petri dishes containing Sabouraud agar with chloramphenicol in three libraries of three educational institutions. The resulting fungal colonies were subjected to identification through the association of macroscopic and microscopic aspects, using microculture. Complementary phenotypic assays were also performed.

RESULTS:

A total of 351 colony-forming units (CFU) were obtained from the 55 analyzed samples, of which 331 (94.3%) were filamentous fungi and 20 (5.7%) were yeasts. The most frequent filamentous fungus species were Penicillium sp., Cladosporium sp., Alternaria sp., Aspergillus sp., and Curvularia sp., with a greater predominance of Penicillium sp. in a library that was not acclimatized, with 80 (22.7%) CFU. Conclusion: The results of this study show a great diversity of fungi with pathogenic and toxigenic potential, which can trigger allergic processes, thus confirming the importance of establishing hygiene and disinfection protocols in this type of environment.