Residual effect of pre-emergence herbicides on microbial activities in relation to mineralization of C, N and P in the Gangetic alluvial soil of West Bengal, India

Barman, Saurav; Das, Anamika

doi:10.1007/s10661-015-4698-9

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…, Qinglin Chen et al 2015,Barman, Das 2015, Lancaster et al 2008. The high application rate of the preparation (6.0 l/ha) resulted in increasing the MB on the first day and on day 90.…”

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confidence: 99%

Potential Attractiveness of Soil Fungus Trichoderma Inhamatum for Biodegradation of the Glyphosate Herbicide

Kunanbayev¹,

Churkinа²,

Rukavitsina³

et al. 2019

J. Ecol. Eng.

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The T. inhamatum F6-2014 fungus was isolated from the black soils of Northern Kazakhstan in stationary experiments with many years of herbicide use. The research was aimed at studying the biodegrading activity of T. inhamatum in relation to an herbicide with the glyphosate active ingredient, both in vitro and in situ. Under the laboratory conditions, the highest growth rate of a colony of T. inhamatum was observed in the reference variant, and reached 49.0 ± 2.5 mm. During the field experiments, a significant increase was noted in the microbial biomass (MB) on the first day in the herbicidal variants and ranged from 239.2 to 322.8 µg/g of soil. On the 15th day, the level of MB in all herbicide variants increased 1.6-2.1 times, and in the reference-2.3 times. By the second month, the level of MB reduced 1.5-2.0 times in all variants. By the third month of the studies, the greatest MB decrease was noted in the reference-82.8 µg/g. The level of urease activity during the first day in all variants, including the reference, ranged between 0.12-0.15 mg/g of soil. On the 15th day, a significant (3.3 times) increase in the urease activity was noted in the variants with glyphosate, compared to the reference. Subsequently, the difference in the level of enzyme activity was insignificant between the variants. The MB and the urease activity in the first fifteen days increase due to the more active decomposition of glyphosate by strain.

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“…, Qinglin Chen et al 2015,Barman, Das 2015, Lancaster et al 2008. The high application rate of the preparation (6.0 l/ha) resulted in increasing the MB on the first day and on day 90.…”

mentioning

confidence: 99%

Potential Attractiveness of Soil Fungus Trichoderma Inhamatum for Biodegradation of the Glyphosate Herbicide

Kunanbayev¹,

Churkinа²,

Rukavitsina³

et al. 2019

J. Ecol. Eng.

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“…The application of the herbicides from the thiocarbamate, dinitroaniline, and chloroacetamide families increased microbial biomass, measured by the chloroform fumigation method, probably due to direct degradation or via co-metabolic processes. This increased the availability of mineral carbon, nitrogen, and phosphorous to the soil and resulted in higher mineralization of these herbicides (Barman and Das, 2015). Chloroacetamide herbicides can be transformed by microbial metabolism in natural soils to 4,2-methyl-6-ethylaniline, and this intermediate can be used as a sole nutrient source for a Sphingobium strain.…”

Section: Bacterial Herbicides Degradation Pathways and Bioremediationmentioning

confidence: 99%

Herbicide bioremediation: from strains to bacterial communities

Pileggi

Sadowsky

2020

Heliyon

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There is high demand for herbicides based on the necessity to increase crop production to satisfy world-wide demands. Nevertheless, there are negative impacts of herbicide use, manifesting as selection for resistant weeds, production of toxic metabolites from partial degradation of herbicides, changes in soil microbial communities and biogeochemical cycles, alterations in plant nutrition and soil fertility, and persistent environmental contamination. Some herbicides damage non-target microorganisms via directed interference with host metabolism and via oxidative stress mechanisms. For these reasons, it is necessary to identify sustainable, efficient methods to mitigate these environmental liabilities. Before the degradation process can be initiated by microbial enzymes and metabolic pathways, microorganisms need to tolerate the oxidative stresses caused by the herbicides themselves. This can be achieved via a complex system of enzymatic and non-enzymatic antioxidative stress systems. Many of these response systems are not herbicide specific, but rather triggered by a variety of substances. Collectively, these nonspecific response systems enhance the survival and fitness potential of microorganisms. Biodegradation studies and remediation approaches have relied on individually selected strains to effectively remediate herbicides in the environment. Nevertheless, it has been shown that microbial communication systems that modulate social relationships and metabolic pathways inside biofilm structures among microorganisms are complex; therefore, use of isolated strains for xenobiotic degradation needs to be enhanced using a community-based approach with biodegradation pathway integration. Bioremediation efforts can use omics-based technologies to gain a deeper understanding of the molecular complexes of bacterial communities to achieve to more efficient elimination of xenobiotics. With this knowledge, the possibility of altering microbial communities is increased to improve the potential for bioremediation without causing other environmental impacts not anticipated by simpler approaches. The understanding of microbial community dynamics in free-living microbiota and those present in complex communities and in biofilms is paramount to achieving these objectives. It is also essential that non-developed countries, which are major food producers and consumers of pesticides, have access to these techniques to achieve sustainable production, without causing impacts through unknown side effects.

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Effect of indaziflam on microbial activity and nitrogen cycling processes in an orchard soil

2022

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Residual effect of pre-emergence herbicides on microbial activities in relation to mineralization of C, N and P in the Gangetic alluvial soil of West Bengal, India

Cited by 5 publications

References 21 publications

Potential Attractiveness of Soil Fungus Trichoderma Inhamatum for Biodegradation of the Glyphosate Herbicide

Potential Attractiveness of Soil Fungus Trichoderma Inhamatum for Biodegradation of the Glyphosate Herbicide

Herbicide bioremediation: from strains to bacterial communities

Effect of indaziflam on microbial activity and nitrogen cycling processes in an orchard soil

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