Publications by authors named "Naveen Arora"

In past few years, salinity has become one of the important abiotic stresses in the agricultural fields due to anthropogenic activities. Salinity is leading towards yield losses due to soil infertility and increasing vulnerability of crops to diseases. Fluorescent pseudomonads are a diverse group of soil microorganisms known for promoting plant growth by involving various traits including protecting crops from infection by the phytopathogens.

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Adjuvants were used to modulate response towards relevant immune cells. The present study aims to investigate FlaA-conjugated Per a 10 and T cell peptides in amelioration of allergic airway disease in mice. Mice given Per a 10 showed allergic features with higher cellular infiltration, IgE, Th-2 cytokines and alarmins.

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In the current study salt tolerant-plant growth-promoting rhizobacteria (ST-PGPR) Pseudomonas atacamensis KSS-6, selected on the basis of prominent plant growth-promoting (PGP) and stress tolerance properties was tested as bioinoculant to improve yield of rice grown in saline soil. The ST-PGPR KSS-6 was capable of maintaining the PGP traits up to 200 mM NaCl, however, higher salt stress conditions affected these activities. The study was designed to determine the effect of developed talc-based bioformulation using KSS-6 along with organic manure (OM) on growth and yield of paddy under saline conditions.

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Background: Genetic diversity among species influences the disease severity outcomes linked to air pollution. However, the mechanism responsible for this variability remain elusive and needs further investigation.

Objective: To investigate the genetic factors and pathways linked with differential susceptibility in mouse strains associated with diesel exhaust exposure.

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Unlabelled: The existence of large variations for nodulation traits in chickpea minicore was revealed and genetic materials for beneficial biological nitrogen fixation (BNF) traits like early nodulation, high nodulation, and delayed nodule senescence were identified. Early-nodulating genotypes viz. ICC12968, ICC7867, ICC13816, ICC867, ICC15264, ICC15510, and ICC283 produced > 10 nodule number per plant (NNPP) at 15 as well as 30 days after sowing (DAS).

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Salt-tolerant plant growth promoting rhizobacteria (ST-PGPR) are known to ameliorate salt stress in plants by various mechanisms. The current study aims to investigate the role of an ST-PGPR strain Pseudomonas taiwanensis PWR-1 applied along with a reduced dose of mineral fertilizers (N, P, and K) in the improvement of the antioxidant and nutritional properties of wheatgrass (Triticum aestivum L.) grown in saline soil.

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Background: Diesel exhaust (DE) exposure contributes to the progression of chronic respiratory diseases and is associated with dysregulation of microRNA expression. The present study aims to investigate the involvement of miRNAs and target genes in DE-induced lung fibrosis.

Methods: C57BL/6 mice were divided into three groups.

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Trace element deficiency is a pervasive issue contributing to malnutrition on a global scale. The primary cause of this hidden hunger is related to low dietary intake of essential trace elements, which is highly prevalent in numerous regions across the world. To address deficiency diseases in humans, fortification of staple crops with vital trace elements has emerged as a viable solution.

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Studies have investigated the relationship between diesel exhaust (DE) exposure and lung health, highlighting the potential for DE to induce pulmonary inflammation and oxidative stress. However, the resolution of inflammation upon withdrawal of DE exposure needs further investigation. Therefore, resolution of diesel exhaust-induced lung damage was studied in the murine model.

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Novel strategies are needed to enhance efficacy of immunotherapy for allergic diseases. The present study evaluates role of conjugating flagellin with allergen, Per a 10 and its T cell epitopes in DC mediated polarization. Fusion proteins (FPer a 10, FPT1, FPT2 and FPT3) were sub-cloned, expressed and purified to homogeneity.

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Background: Computational tools may have an edge over conventional methods for the preliminary evaluation of food allergenicity. In this study, the allergenic potential of Lentinula edodes was evaluated and validated using in silico tools.

Results: The potential cross-reactivity of mushroom proteins with fungal allergens was determined using sequence alignment - the Fast Alignment (FASTA) and Basic Local Alignment Search Tool (BLAST) algorithm.

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Background: In-silico mapping of epitopes by immune-informatics has simplified the efforts towards understanding antigen-antibody interactions. The knowledge of allergen epitopes may help in advancing the diagnosis and therapy of allergic diseases.

Objective: This study was intended to identify B and T cell epitopes of cysteine protease allergen of Phaseolus vulgaris.

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The excess use of chemicals by farmers in the agroecosystems degrades soil quality, disturbs soil ecology, and increases soil salinity and health hazards in humans. is an important medicinal and aromatic crop whose leaves contain steviol glycosides (SGs). The NAIMCC-B-02323 strain STJP from the rhizosphere of producing salicylic acid (16.

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Article Synopsis
  • LPC (lysophosphatidylcholine) triggers allergic airway disease through CD1d-restricted Natural Killer T (NKT) cells, with choline chloride (ChCl) showing potential to reduce this effect.
  • In experiments, mice exposed to cockroach extract and LPC displayed increased airway hyperresponsiveness and inflammation, which were significantly mitigated when given ChCl.
  • ChCl competes with LPC for binding to CD1d, leading to reduced activation of NKT cells and lower inflammatory responses, highlighting its potential therapeutic role in managing allergic airway conditions.
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Unlabelled: Maize ( L.) is a major cereal crop grown in a large number of countries. Loss in maize yield due to biotic stresses including fungal phytopathogens is a matter of immense concern.

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A commonly consumed legume in India, the kidney bean (Phaseolus vulgaris) is associated with allergy. We report molecular and immunological characterization of cysteine protease allergen and its cross-reactivity. In silico allergenicity assessment and phylogenetic analysis of kidney bean cysteine protease showed significant sequence homology (upto 67%) with allergens from kiwi, papaya, soybean, ragweed pollen and mites.

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Peptide immunotherapy (PIT) represents a safe and efficacious therapeutic regimen with in-consequential side-effects. The present study aims to identify T-cell epitopes of Per a 5 allergen, a delta class GST from Periplaneta americana and investigate effect of peptide treatment in murine model of cockroach allergen-mediated hyper-reactivity. The epitopes (TC-P1, TC-P2, and TC-P3) were identified as promiscuous MHC-II binders by MHC-Pred, ProPred, and IEDB analysis tool.

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Article Synopsis
  • The spotted stem borer, Chilo partellus, significantly impacts maize and sorghum production in Asia and Africa, with low to moderate pest resistance in cultivated crops requiring reliance on insecticides for management.
  • New research sequenced various C. partellus populations to uncover how they detoxify insecticides, revealing 64 cytochrome P450 genes and 36 glutathione S-transferase genes involved in this process.
  • This study marks the first whole genome sequencing of C. partellus, providing critical insights into its detoxification mechanisms and receptor actions, paving the way for the development of targeted insecticides for better pest control and sustainable agriculture.
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Article Synopsis
  • The study investigates respiratory allergies to American cockroaches in subtropical and tropical regions, compounded by other indoor allergies that complicate diagnosis.
  • Researchers created and analyzed a panel of nine purified recombinant allergens from cockroaches to improve component-resolved diagnostics (CRD).
  • They found that IgE sensitization patterns varied across patients from four different countries, identifying specific major and minor allergens, and highlighting that the cockroach extract was more sensitive for diagnosis than individual allergens.
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RNA interference (RNAi) is a method of gene silencing where dsRNA is digested into small interfering RNA (siRNA) in the presence of enzymes. These siRNAs then target homologous mRNA sequences aided by the RNA-induced silencing complex (RISC). The mechanism of dsRNA uptake has been well studied and established across many living organisms including insects.

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Background: Immune epitopes of allergens are pivotal for development of novel diagnostic and therapeutic modalities. Present study aims to identify antigenic determinants of Per a 5, a clinically relevant cross reactive cockroach allergen.

Methods: The three dimensional structure of Per a 5 was modelled using Modeller 9v11 software.

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Background: Epidemiological studies suggest increased risk of lung cancer associated with diesel exhaust (DE) exposure. However, DE-induced lung fibrosis may lead to cancer and needs investigation.

Objectives: To study the mechanism involved in the initiation of DE- induced lung fibrosis.

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Soil salinity has emerged as a great threat to the agricultural ecosystems throughout the globe. Many continents of the globe are affected by salinity and crop productivity is severely affected. Anthropogenic activities leading to the degradation of agricultural land have also accelerated the rate of salinization in arid and semi-arid regions.

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