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Background: Metallic nano-oxide has been influenced the environment in the past two decades. Their consequences are dreadfully uncertain. The increased graph of their interference suggested many extensive studies in various fields of the environment. The Gossypium hirsutum one of the prime harvest plants in India has been chosen for studying the impacts of metallic nano-oxide on their morphological characters as well as their fresh shoot and root weights. Methods: Study has been done in July 2020 as a randomized triplet. The need for the study was fulfilled by the four different metallic nano-oxides with their five specific concentrations. The metallic nano-oxides were titanium oxide, silver oxide, copper oxide and zinc oxide. The five concentrations 00 ppm, 40 ppm, 60 ppm, 80 ppm and 100 ppm were taken from each one of metallic nano-oxide. Result: The zinc oxides treatment gave noteworthy positive growth and development in Gossypium hirsutum from germination to the blossoming time. Conversely, the concentrations of silver oxides were found little toxic for the growth of species. The copper and titanium oxides indicated little diversity in their growth patterns. The germination studies calculated best with titanium oxide treatment. The 80 ppm concentration of copper oxide also reported better results at germination in comparison to control. [ABSTRACT FROM AUTHOR]

Chickpea is an important pulse crop of India, but its productivity is quite low due to several biotic and abiotic stresses. Low seed vigor is one of the issues that occur due to changes in different biochemical properties during improper storage condition. To overcome the biochemical activity during storage, seed priming is a promising strategy. In the present study, two nanopriming agents viz., Zinc Oxide Nanoparticles (ZnONPs) and silver Nanoparticles (AgNPs) were evaluated for biochemical activity (Peroxidase activity, alpha amylase activity, total soluble sugar, total protein) of chickpea at 2, 4, 6 and 9 months storage period after priming for 1, 2, and 6 hours. Result showed increased activity of Peroxidase (POX) with increase of storage time, but the rate of increase was comparatively low when seeds were nanoprimed with ZnONPs. Similarly, alpha amylase activity and protein content were recorded highest and Total Soluble Sugar (TSS) was found lowest in ZnONPs primed seed. Out of the different priming times, 6 hrs was found to be the best at 9 months of storage with positive effect on biochemical parameters. Among the biotic stresses, disease caused by Fusarium oxysporum f.sp. ciceri has been considered as a destructive one, which causes yield loss up to 10% every year. To overcome the biotic stress and enhance the storage life, chickpea seeds were primed with ZnONPs and AgNPS at 100 ppm alone and in combination with each other. We found positive effect on seed germination (%), plant growth, and yield attributing parameter and negative effect on per disease incidence of F. oxysporum f.sp. ciceri. [ABSTRACT FROM AUTHOR]

The present study aimed to identify the drug resistance Helicobacter pylori (H. pylori), and its advanced treatment using Digiria muricata (Dm) leaf mediated silver oxide nanoparticles (Ag 2 ONPs). The synthesized Dm-Ag 2 ONPs were confirmed by UV–visible spectrometry, X-ray diffraction crystallography (XRD), Fourier transfer infrared spectroscopy (FT-IR), Transmission electron microscopy (TEM), Energy dispersive spectroscopy (EDAX). The fifty gastric biopsy samples were obtained from gastric patients in the Trichy SRM medical College Hospital and Research Centre, Central South-Eastern region of India, Trichy with Gastro endoscopy. H. pylori was identified by biopsy crush cytology, histopathology, rapid urease test, and biochemical tests. The resistance pattern was checked by the disk diffusion method. Among 50 biopsy samples, ten patients had positive results for culture, biochemical, and histopathology. The obtained strains showed 10% resistance to the metronidazole and 100% sensitivity toward amoxicillin and clarithromycin. Further, the metronidazole resistance strain was tested against Dm-Ag 2 ONPs using a well diffusion assay, which showed (25 μg/mL) 2.4 ± 0.4 and (100 μg/mL) 5.5 ± 0.5 mm antibacterial activity. Overall, the obtained results from the present investigation are promising enough to revels the effectiveness of Dm-Ag 2 ONPs to inhibit the metronidazole resistance H. pylori , this may help to develop a novel therapeutic drug against the drug resistance H. pylori infections. [Display omitted] • Isolation and identification of Helicobacter pylori. • Low cost, environment friendly silver oxide nanoparticles, • The biological synthesis of Ag 2 ONPs, Digera muricata leaf extract acting as reducing agent. • The synthesized Dm-Ag2ONPs showed good inhibitory effect against metronidazole resistance bacteria. [ABSTRACT FROM AUTHOR]