NDLI: Rapid biodegradation of metsulfuron-methyl by a soil fungus in pure cultures and soil

Content Provider	Springer Nature Link
Author	He, Yong Hua Shen, Dong Sheng Fang, Cheng Ran Zhu, Yin Mei
Copyright Year	2006
Abstract	Four strains of bacteria, 9 strains of fungi and 20 strains of actinomycetes capable of utilizing metsulfuron-methyl as sole carbon and energy source were isolated from a metsulfuron-methyl-treated soil by the enrichment culture method. A fungus named DS11F was selected as the most highly effective one according to the maximum tolerance concentration of 1,200 mg l$^{−1}$ and metsulfuron-methyl-degrading rate of 0.0716 g g$^{−1}$ cells h$^{−1}$, and was identified as an unknown strain of Penicillium sp. on the basis of colony growth, morphology and biochemical characteristics.␣Through liquid pure culture, the optimal metsulfuron-methyl-degrading conditions of DS11F were determined to be metsulfuron-methyl concentration 22.6 mg l$^{−1}$, inoculum concentration 12.25 mg l$^{−1}$, pH 7.0 and temperature 30°C. As additional C sources, supernatant of soaked compost could increase metsulfuron-methyl degradation by 8%, but glucose was ineffective. DS11F inoculation was found to significantly enhance the degradation of metsulfuron-methyl in soil, with the reduction of the concentration reaching 50% in 6 days. Admixture of compost could promote metsulfuron-methyl degradation to some extent. The growth of the inocula in the soils remained dominant and degradation resumed immediately when metsulfuron-methyl was applied again. The results show that addition of the isolated Penicillium sp. enhances the degradation of metsulfuron-methyl in water and soil.
Starting Page	1095
Ending Page	1104
Page Count	10
File Format	PDF
ISSN	09593993
Journal	World Journal of Microbiology and Biotechnology
Volume Number	22
Issue Number	10
e-ISSN	15730972
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-08-15
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Degradation Fungi Herbicide High-effective strain Inoculation Isolation Penicillium sp. Sulfonylurea Microbiology Environmental Biotechnology Biochemistry Biotechnology Applied Microbiology
Content Type	Text
Resource Type	Article
Subject	Physiology Medicine Applied Microbiology and Biotechnology Biotechnology

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