ntarctic fungi applied to textile dye bioremediatio

Author(s)

Kita, Daniela M. ^[1] ; Giovanella, Patricia ^{[1, 2]} ; Yoshinaga, Thais T. ^[1] ; Pellizzer, Elisa P. ^[1] ; Sette, Lara D. ^{[1, 2]}

Affiliation

^[1] Univ Estadual Paulista, Inst Biociencias, Dept Biol Geral & Aplicada, UNESP, Av 24A, 1515, BR-13506900 Rio Claro, SP - Brazil

^[2] Univ Estadual Paulista, Ctr Estudos Ambientais, Inst Biociencias, UNESP, Av 24A, 1515, BR-13506900 Rio Claro, SP - Brazil

• Document type: Journal article
• Source: Anais da Academia Brasileira de Ciências; v. 94, n. 1 2022.
• Web of Science Citations: 0

Abstract

Antarctica has one of the most hostile conditions on the planet. The environmental characteristics found in this region favor the development of extremophile microorganisms, which are poorly explored biotechnologically. In this context, this study aimed at selectively isolating fungi with potential for the bioremediation of a textile dye. A total of 11 filamentous fungi were isolated from Antarctic samples after incubation in Minimal Mineral medium with the addition of Sulphur Indigo Blue dye. The Antarctic-derived fungi were submitted to textile dye decolorization analysis and biomass production. Isolates LAMAI 2400 and LAMAI 2402 showed more than 90% of decolorization at 15 degrees C, whereas at 28 degrees C these isolates showed 81.86 and 98.89%, respectively. In general, the toxicity of the bioassays, evaluated using Cucumis sativus, was higher than in the control. Both isolates, LAMAI 2400 and LAMAI 2402, were identified as Penicillium cf oxalicum and classified as mesophilic-psychrotolerant. This fungal species has rarely been reported in the Antarctic environments. The results presented herein indicate the potential of the fungi recovered from Antarctic marine sediments for bioremediation of textile dyes at low and moderate temperatures, broadening the perspectives in the field of Antarctic mycology. (AU)

• FAPESP's process: 19/01632-7 - Selective isolation of fungi with biotechnological potential from marine and terrestrial Antarctic samples
• Grantee: Daniela Mayumi Kita
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 18/12098-9 - Marine sulfatases and oxidases for the trimming of biogenic and biobased products (BioTrim)
• Grantee: Lara Durães Sette
• Support Opportunities: Regular Research Grants