Fungal tolerance to Congo red, a cell wall integrity stress, as a promising indicator of ecological niche

Author(s)

Lima, Daiana M. C. G. ^[1] ; Costa, Tacyana P. C. ^[1] ; Emri, Tamas ^[2] ; Pocsi, Istvan ^[2] ; Pupin, Breno ^[3] ; Rangel, Drauzio E. N. ^[1]

Affiliation

^[1] Univ Brasil, Sao Paulo, SP - Brazil

^[2] Univ Debrecen, Fac Sci & Technol, Inst Biotechnol, Dept Mol Biotechnol & Microbiol, Debrecen - Hungary

^[3] Inst Nacl Pesquisa Especiais INPE, Ctr Ciencia Sistema Terr, Sao Jose Dos Campos, SP - Brazil

• Document type: Journal article
• Source: FUNGAL BIOLOGY; v. 125, n. 8, p. 646-657, AUG 2021.
• Web of Science Citations: 0

Abstract

Differential sensitivities to the cell wall stress caused by Congo red (CR) have been observed in many fungal species. In this study, the tolerances and sensitivities to CR was studied with an assorted collection of fungal species from three phylogenetic classes: Sordariomycetes, Dothideomycetes, and Eurotiomycetes, three orders, and eight families. These grouped into different ecological niches, such as insect pathogens, plant pathogens, saprotrophs, and mycoparasitics. The saprotroph Aspergillus niger and the mycoparasite Trichoderma atroviride stood out as the most resistant species to cell wall stress caused by CR, followed by the plant pathogenic fungi, a mycoparasite, and other saprotrophs. The insect pathogens had low tolerance to CR. The insect pathogens Metarhizium acridum and Cordyceps fumosorosea were the most sensitive to CR. In conclusion, Congo red tolerance may reflect ecological niche, accordingly, the tolerances of the fungal species to Congo red were closely aligned with their ecology. (c) 2021 British Mycological Society. Published by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 10/06374-1 - Visible light during growth enhances conidial tolerance to different stress conditions in fungi
• Grantee: Drauzio Eduardo Naretto Rangel
• Support Opportunities: Research Grants - Young Investigators Grants