Journal ArticleDOI
Effect of pencycuron on microbial parameters of waterlogged soil
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TLDR
The metabolically activated microbial population was more suppressed compared to the dormant population and the DCM amendment did not seem to have any counteractive effect on the toxicity of pencycuron on the microbial variables.Abstract:
A laboratory study was conducted to monitor the effect of pencycuron [1-(4-chlorobenzyl)-1-cyclopentyl-3-phenylurea] on microbial parameters of alluvial (AL) soil (Typic udifluvent) and coastal saline (CS) soil (Typic endoaquept) under waterlogged condition. Pencycuron at field rate (FR), 2FR and 10FR affected the microbial biomass C (MBC), soil ergosterol content and fluorescein diacetate hydrolyzing activity (FDHA) differentially. The DCM amendment did not seem to have any counteractive effect on the toxicity of pencycuron on the microbial variables. The change in microbial metabolic quotient (qCO2) and microbial respiration quotient (QR), indicated pencycuron induced disturbance at 10FR. Present study revealed that the metabolically activated microbial population was more suppressed compared to the dormant population.read more
Citations
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Fluorescein diacetate as a stain of metabolically active bacteria in soil [garden soil, sandy soil, sand dune soil, mull, soil from Pinus, Picea and Fagus forest, fluorescence technique, acridine orange staining, fluorescein isothiocyanate staining, plate counts]
TL;DR: Fluorescein diacetate (FDA) was applied as a vital stain to soil bacteria in pure cultures, sterilized soil, and natural soils as discussed by the authors, and nearly 80% of the isolates were stained.
Journal ArticleDOI
Effect of Insecticide-Tolerant and Plant Growth-Promoting Mesorhizobium on the Performance of Chickpea Grown in Insecticide Stressed Alluvial Soils
TL;DR: The present finding suggests that the mesorhizobial isolate endowed with multiple properties could be used to facilitate the productivity of chickpea under insecticidestressed soils.
Journal ArticleDOI
Comparative toxicity of selected insecticides to pea plants and growth promotion in response to insecticide-tolerant and plant growth promoting Rhizobium leguminosarum
TL;DR: Of the various concentrations of the two insecticides, pyriproxyfen showed comparatively more severe toxicity to pea plants by decreasing plant biomass, symbiotic attributes, nutrients (nitrogen and phosphorus) uptake, seed yield and grain protein over the uninoculated control.
Book ChapterDOI
Pesticide Interactions with Soil Microflora: Importance in Bioremediation
TL;DR: The present review focuses on the role of naturally occurring rhizosphere microbes involved in degradation or transformation of insecticides.
References
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Journal ArticleDOI
Maintenance carbon requirements of actively-metabolizing microbial populations under in situ conditions
TL;DR: To study maintenance carbon requirements under in situ conditions the biomasses of two agricultural soils and a beech forest soil were activated metabolically and the CO2 production rate at 22°C recorded every hour to determine the maintenance ration.
Journal ArticleDOI
Effects of organic amendment and herbicide treatment on soil microbial biomass
TL;DR: In this article, the interactive effects of vermi-compost from sewage sludge and either the sulfonylurea herbicide, rimsulfuron, or the imidazolinone herbicide imazethapyr, on some soil biochemical and microbiological properties were investigated.
Fluorescein diacetate as a stain of metabolically active bacteria in soil [garden soil, sandy soil, sand dune soil, mull, soil from Pinus, Picea and Fagus forest, fluorescence technique, acridine orange staining, fluorescein isothiocyanate staining, plate counts]
TL;DR: Fluorescein diacetate (FDA) was applied as a vital stain to soil bacteria in pure cultures, sterilized soil, and natural soils as discussed by the authors, and nearly 80% of the isolates were stained.
Journal ArticleDOI
Fluorescein diacetate as a stain of metabolically active bacteria in soil
TL;DR: Fluorescein diacetate (FDA) was applied as a vital stain to soil bacteria in pure cultures, sterilized soil, and natural soils as mentioned in this paper, and nearly 80% of the isolates were stained.
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