Changes in soil microbial community and activity caused by application of dimethachlor and linuron
Autor: | Jana Maková, Radoslav Omelka, Renata Cinkocki, Soňa Javoreková, Janka Medová, Juraj Medo, Nikola Lipková |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
0301 basic medicine
Achromobacter Microorganism Science Microbial communities 010501 environmental sciences 01 natural sciences Article Microbial ecology 03 medical and health sciences chemistry.chemical_compound Acetamides Linuron Biomass Food science Chloroacetamide Phylogeny Soil Microbiology 0105 earth and related environmental sciences Soil health Biomass (ecology) Multidisciplinary Environmental microbiology biology Herbicides Microbiota Carbon Dioxide biology.organism_classification Aerobiosis 030104 developmental biology Microbial population biology chemistry Medicine Proteobacteria Metabolic Networks and Pathways |
Zdroj: | Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021) Scientific Reports |
ISSN: | 2045-2322 |
Popis: | Soil microorganisms and their activities are essential for maintaining soil health and fertility. Microorganisms can be negatively affected by application of herbicides. Although effects of herbicides on microorganisms are widely studied, there is a lack of information for chloroacetamide herbicide dimethachlor. Thus, dimethachlor and well known linuron were applied to silty-loam luvisol and their effects on microorganisms were evaluated during112 days long laboratory assay. Dimethachlor and linuron were applied in doses 1.0 kg ha−1 and 0.8 kg ha−1 corresponding to 3.33 mg kg−1 and 2.66 mg kg−1 respectively. Also 100-fold doses were used for magnification of impacts. Linuron in 100-fold dose caused minor increase of respiration, temporal increase of soil microbial biomass, decrease of soil dehydrogenase activity, and altered microbial community. Dimethachlor in 100-fold dose significantly increased respiration; microbial biomass and decreased soil enzymatic activities. Microbial composition changed significantly, Proteobacteria abundance, particularly Pseudomonas and Achromobacter genera increased from 7 to 28th day. In-silico prediction of microbial gene expression by PICRUSt2 software revealed increased expression of genes related to xenobiotic degradation pathways. Evaluated characteristics of microbial community and activity were not affected by herbicides in recommended doses and the responsible use of both herbicides will not harm soil microbial community. |
Databáze: | OpenAIRE |
Externí odkaz: |