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- Title
Lignin degradation and nutrient cycling by white rot fungi under the influence of pesticides.
- Authors
Wali, Anshu; Gupta, Moni; Gupta, Sachin; Sharma, Vikas; Salgotra, R. K.; Sharma, Manish
- Abstract
The production of enzymes involved in lignin degradation (laccase, ligninase), carbon cycling (β-glucosidase), and phosphorous cycling (phosphomonoesterase) by white rot fungi (Pleurotus sajor-caju) was studied. In the presence of chlorpyrifos, carbofuran, and their mixture, laccase activity was highest on the 7th day, i.e., 192.5 ± 0.31 U ml− 1, 213.6 ± 0.31 U ml− 1, and 164.6 ± 0.31 U ml− 1, respectively, compared to the control which produced maximum laccase on the 14th day (126.9 ± 0.15 U ml− 1). Phosphomonoesterase activity in the presence of chlorpyrifos, carbofuran, and their mixture was 31.5 ± 0.25, 24.1 ± 0.15, and 29.2 ± 0.35 µg PNP min−1 ml−1, respectively, which was more than the control on the 21st day (11.63 ± 0.21 µg PNP min−1 ml−1). β-Glucosidase production increased with the days of incubation in the presence of pesticides than in the control. β-Glucosidase activity on the 21st day in the presence of chlorpyrifos, carbofuran, and their mixture was 32.4 ± 0.1, 24.2 ± 0.3, and 28.4 ± 0.25 µg PNP min−1 ml−1, respectively, as compared to control (15.3 ± 0.6 µg PNP min−1 ml−1). Thus, chlorpyrifos, carbofuran, and their mixture were found to have a positive effect on the production of laccase, β-glucosidase, and phosphomonoesterase by P. sajor-caju, which can use these pesticides as a source of their nutrition, thereby improving the health of pesticide-polluted soils.
- Subjects
NUTRIENT cycles; PESTICIDES; ORGANOPHOSPHORUS pesticides; CHLORPYRIFOS; CARBOFURAN; LIGNINS; LACCASE; CARBON cycle
- Publication
3 Biotech, 2020, Vol 10, Issue 6, p1
- ISSN
2190-572X
- Publication type
Article
- DOI
10.1007/s13205-020-02251-z