Publications by authors named "Sudhir Shukla"

Article Synopsis
  • Biofilms, which are structured communities of microbes, create problems in industrial cooling systems, especially in nuclear power plants, where active-bromide is used as a biocide to control biological growth.
  • A study found that active-bromide at 1 ppm had minimal effectiveness against certain bacteria, and while higher concentrations showed better results, combining it with the surfactant Triton-X 100 significantly improved biofilm control.
  • The research suggests that using a surfactant alongside active-bromide can enhance its effectiveness against established biofilms, indicating that a dual approach may be necessary for better microfouling control in seawater cooling systems.
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The emergence of antimicrobial resistance (AMR) in clinical microbes has led to a search for novel antibiotics for combating bacterial infections. The treatment of bacterial infections becomes more challenging with the onset of biofilm formation. AMR is further accelerated by biofilm physiology and differential gene expression in bacteria with an inherent resistance to conventional antibiotics.

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Article Synopsis
  • Bacterial biofilms are tough to treat in healthcare settings due to their resistance to antibiotics; this study investigates the anti-biofilm effects of Bacillus licheniformis cell-free culture supernatant (CFS) and silver nanoparticles derived from it (bSNPs) against common pathogens, Staphylococcus aureus and Pseudomonas aeruginosa.
  • The CFS demonstrated strong anti-biofilm activity at low concentrations without killing the bacteria, which reduces the risk of developing antibiotic resistance, and was found to be stable and effective even when exposed to heat.
  • The study indicates that bSNPs are particularly effective against P. aeruginosa, disrupt biofilm formation
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Quick leaching of urea fertilizer encourages different coatings, but achieving a stable coating without toxic linkers is still challenging. Here, the naturally abundant bio-polymer, i.e.

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In the current study, six bacterial types, isolated from spent nuclear fuel (SNF) pool facility, were investigated for their ability to sequester heavy metals (cobalt and nickel). Biofilm formation by the six bacterial isolates, viz., Bacillus subtilis, Staphylococcus species, Staphylococcus arlettae, Staphylococcus epidermidis, Staphylococcus auricularis, and Chryseobacterium gleum, were assayed, and they were found to have significant biofilm forming property.

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In this study, a comprehensive in silico characterization was performed on Bap-family proteins to develop novel approaches to deal with Staphylococcus biofilms with a better understanding of the functional, structural, and topological features of Bap proteins. This study showed that Bap-like proteins in staphylococci are highly acidic, large, and cell-wall anchored proteins with tandem repeats. Structurally, Bap-family proteins have two distinct parts.

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Aims: To investigate the molecular basis of biofilm formation in a recombinant lab strain of Deinococcus radiodurans with a plasmid harbouring gfp and kan that acquired the biofilm-forming ability.

Methods And Results: Deinococcus radiodurans R1 is known as a nonbiofilm former bacterium and so far there are no reports on its biofilm-producing capabilities. In this study, we investigated the molecular basis of biofilm formation in a recombinant strain of D.

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Nitrogen fertilizers, namely urea, are prone to leaching that causes inefficiency in crop production and environmental pollution; hence porous particles were explored for slow release. Nevertheless, discrete particles add cost; therefore, jute cellulose has been tested as twine to tether silica together for reusability. On the other hand, silica serves as an exoskeleton to give pore memory property to cellulose, which otherwise is susceptible to loss of porosity during irrigation.

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Increasing number of reports on uranium contamination in groundwater bodies is a growing concern. Deinococcus radiodurans biofilm-based U(VI) bioremediation has great potential to provide solution. This study focuses on the kinetic modelling of uranium biosorption by D.

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Deinococcus radiodurans is the most radiation-tolerant organism ever known. It has gained importance in recent years as a potential candidate for bioremediation of heavy metals, especially the radioactive type. This study investigates the efficiency of a recombinant D.

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Spent nuclear fuel (SNF) pool is an essential unit of a nuclear power plant infrastructure, where radioactive fuel rods are kept for cooling and shielding, before reprocessing. This study explored the presence of bacteria in SNF pool water with emphasis on their capability to form biofilms on pool wall cladding material stainless steel (SS-304L). Bacteria were isolated from SNF pool water and were characterized using 16S rRNA gene sequencing.

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Article Synopsis
  • The study investigates the uranium bioremediation potential of Staphylococcus aureus biofilms, traditionally viewed as pathogenic.
  • Biofilms from seven S. aureus strains were tested, revealing that all had acid phosphatase activity, with strain V329 showing the highest enzyme activity and biofilm formation.
  • The addition of phosphate improved uranium removal, with V329 biofilm successfully remediating 47% of uranium from a solution, indicating a promising new method for addressing uranium contamination.
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Using, in silico, in vitro and in planta functional assays, we demonstrate that Ps3'OMT, an 3'-O methyl transferase is linked to papaverine biosynthesis in opium poppy. Papaverine, one of the benzylisoquinoline alkaloids (BIA) synthesized in the medicinally important plant, Papaver somniferum, is known for the potent pharmacological properties. Papaverine biosynthesis has remained debatable as two different pathways, NH (involving N-desmethylated intermediates) and the NCH (involving N-methylated intermediates), have been proposed.

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Creation of genetic variability and development of varieties having higher yield potential depends on information about nature of gene action. The present investigation was undertaken to decipher the nature of gene action and allied genetic parameters involved in the inheritance of yield and yield-related component traits in opium poppy ( L.).

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L. has become an endangered medicinal plant due to the unabated extraction of glycyrrhizin. Glycyrrhizin is a triterpenoid saponin that is a root centric secondary metabolite having numerous pharmacological properties, such as anti-inflammatory, immunomodulatory, antiallergic, antiulcer, and is found to be effective even against HIV.

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Background & Objectives: Among cell surface proteins, biofilm-associated protein (Bap) promotes biofilm development in Staphylococcus aureus strains. The aim of this study was to investigate proteinase-mediated biofilm dispersion in different isolates of S. aureus.

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A spent nuclear fuel (SNF) pool is a key facility for safe management of nuclear waste, where spent nuclear fuel rods are stored in a water pool. The spent fuel rods carry a significant amount of radioactivity; they are either recycled or stored for further processing. Pool water acts as a heat sink as well as a shield against the radiation present in spent/burned fuel rods.

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A previously unknown disease which causes severe vein thickening and inward leaf curl was observed in a number of opium poppy ( L.) plants. The sequence analysis of full-length viral genome and associated betasatellite reveals the occurrence of (AEV) and Ageratum leaf curl betasatellite (ALCB), respectively.

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The gene actions for yield and its attributes and their inheritance pattern based on five parameter model have been explored in four single crosses (NBIHT-5 × NBIHT-6, NBIHT-5 × NBMHT-1, NBMHT-1 × NBIHT-6 and NBMHT-2 × NBMHT-1) obtained using thebaine rich pure lines of opium poppy (Papaver somniferum L.) for three consecutive generations. All the traits showed nonallelic mode of interaction, however, dominance effect (h) was more pronounced for all the traits except thebaine and papaverine.

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Naturally stressed habitats are known to be repositories for novel microorganisms with potential bioremediation applications. In this study, we isolated a [Co(III)-EDTA](-) reducing bacterium Bacillus licheniformis SPB-2 from a solar salt pan that is exposed to constant cycles of hydration and desiccation in nature. [Co(III)-EDTA](-) generated during nuclear waste management process is difficult to remove from the waste due to its high stability and solubility.

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Biofilm-forming marine bacterium Paenibacillus lautus NE3B01 was isolated from a mangrove ecosystem, Odisha, India. This isolate formed a swarming type of colony pattern on the solid culture medium with 0.5-2 % agar.

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A potential biofilm forming and phenanthrene utilizing marine bacterium Pseudomonas mendocina NR802 was isolated from Rushukulya, Odisha, East Coast of India. The effect of Ca(2+) and Mg(2+) on biofilm growth and phenanthrene degradation was evaluated. Among the various tested concentrations, 20 mM of Ca(2+) and Mg(2+) showed a significant enhancement in biofilm production by the bacterium.

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Article Synopsis
  • A new bioremediation method was developed to effectively remove the [Co(III)-EDTA](-) complex produced during waste management, which hasn't been extensively studied before.
  • Researchers isolated a resistant bacterium called Pseudomonas aeruginosa SPB-1 from a solar salt pan and optimized growth conditions for it.
  • The study found that the bacterium's biomass adsorbs the [Co(III)-EDTA](-) complex best at pH 7, can be reused multiple times with significant effectiveness, and has high radiation tolerance, making it suitable for bioremediation of some nuclear waste.
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Deinococcus radiodurans R1 is a highly radio-tolerant bacterium. Depending on the nutrient availability D. radiodurans R1 exists in three morphologies viz.

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