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Exp Parasitol. 2019 Feb;197:16-19. doi: 10.1016/j.exppara.2018.12.006. Epub 2019 Jan 5.

Proteolytic and nematicidal potential of the compost colonized by Hypsizygus marmoreus.

Author information

1
Federal University of Viçosa, Biochemistry and Molecular Biology Department, Viçosa, Minas Gerais, Cep: 3657000, Brazil; State University of Minas Gerais, Campus Ubá, Av. Olegário Maciel, 1427, Ubá, Minas Gerais, Cep: 36500-000, Brazil. Electronic address: filippeufv@yahoo.com.br.
2
Federal University of Viçosa, Biochemistry and Molecular Biology Department, Viçosa, Minas Gerais, Cep: 3657000, Brazil.
3
State University of Minas Gerais, Campus Ubá, Av. Olegário Maciel, 1427, Ubá, Minas Gerais, Cep: 36500-000, Brazil.
4
Vila Velha University, Rua Viana, Soteco, Vila Velha, ES, CEP 29106-091, Brazil.

Abstract

Spent mushroom compost (SMC) is a residue generated in edible mushrooms production, such as Hypsizygus marmoreus. Its genome was recently sequenced, demonstrating cuticle-degrading protease genes. The present work aims to investigate the proteases from H. marmoreus spent mushroom compost (SMC) by verifying its action on nematode larvae. The extraction of the crude extract directly with water from H. marmoreus SMC proved to be efficient for proteases obtainment, with proteolytic activity of 195.36 ± 18.38 U g-1 of compound. Moreover, the zymogram and SDS-PAGE indicated the presence of two proteases with estimated molecular weights of 30.2 and 33.7 kDa. Due to the protease activity present in H. marmoreus SMC extract, there was a significant reduction in the number of Panagrellus redivivus and L3 in treated group compared to control group (p < 0.01), with 52% and 26% of reduction, respectively. A0A151VWY3 mature protein is composed of 296 amino acid residues, exhibiting molecular weight and pI of 29.5 kDa and 6.72. A0A151WD28 mature protein is composed of 343 amino acid residues, exhibiting molecular weight and pI of 34.4 kDa and 8.04. In the present work it was demonstrated that SMC from H. marmoreus has easily extracted protease content, presenting two proteases, possibly with cuticle-degrading activity, which had significant nematicidal effect on P. redivivus and bovine infective larvae.

KEYWORDS:

Hypsizygus marmoreus; In silico; Nematicidal; Protease; Spent mushroom compost

PMID:
30615860
DOI:
10.1016/j.exppara.2018.12.006
[Indexed for MEDLINE]

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