Search

The present paper lists all reports and descriptions of mites in the superfamily Tydeoidea previously reported in Iran, adding new data provided by new collections and studies. The distribution and habitats of each species in Iran are provided, as well. This list is composed of 63 species from 20 genera in 4 families. [ABSTRACT FROM AUTHOR]

The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is an agricultural important polyphagous pest of many crops that causes significant yield loss. In this study, the effect of four herbivore-induced plant volatiles (HIPVs) (methyl jasmonate, methyl salicylate, indole, and 3-pentanol) with a concentration of 100 mmol/L and two plant probiotic bacteria (PBB) (Bacillus pumilus INR7 and Bacillus velezensis H3), were investigated on life table parameters of T. urticae under laboratory conditions (25 ± 1°C, 65 ± 5% RH, and 16 L: 8D). The T. urticae cohorts were reared on attached leaves of kidney bean plants (Phaseolus vulgaris L.) treated with HIPVs and PBBs, separately. The life history data were analysed using age-stage, two-sex life table theory. The intrinsic rate of increase (r) on methyl salicylate (0.1667 ± 0.0087 day-1) and B. velezensis treatment (0.1640 ± 0.0099 day-1) was significantly lower than the control group (0.1934 ± 0.0100 day-1). The finite rate of increase (λ) ranged from 1.178 ± 0.0116 day-1 on the B. velezensis to 1.2134 ± 0.0121 day-1 on the control with a significant difference (P < 0.05). The gross reproduction rate (GRR) on the indole treatment was significantly lower than the other treatments (28.14 ± 3.66 offspring). Based on the results, methyl salicylate, B. velezensis and indole could be considered resistance inducing materials against T. urticae. [ABSTRACT FROM AUTHOR]

Nano-biotechnology has grown rapidly and become an integral part of modern disease diagnosis and treatment. The aim of this survey was to evaluate the anticancer activity of synthesized selenium nanoparticles (Se-NPs) against breast cancer cells (MCF-7). The prepared Se-NPs were examined by ultraviolet-visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope (SEM), and energy dispersive spectroscopy (EDX). Antioxidant activity of Se-NPs property was studied by radical scavenging (DPPH) assay. The in-vitro cytotoxicity of Se-NPs was evaluated by MTT assay. In addition; the biological assessment (antioxidant and cytotoxicity) of synthesized Se-NPs was examined via molecular docking simulations. Synthesis of Se-NPs was characterized by several studies such as UV-absorbance, showing peak values in the range of 268 nm. Nanoparticle sizes of the nanoparticles are confirmed by dynamic light scattering analysis, indicating that average size is about 203 nm. The quantity of selenium in Se-NPs is 90.15% by weight, as confirmed by EDX. Synthesized Se-NPs have anti-proliferative effects on MCF-7 cell lines. Cytotoxicity and apoptotic potential assays exhibited a dose-dependent effect against MCF-7 cells using an MTT assay. Like anti-cancer activity, anti-oxidant activity of Se-NPs was dose-dependent. Findings showed that the Se-NPs complexes have the highest inhibitory effect against cytotoxic and antioxidant receptors. Results of this study demonstrated that Se-NPs had strong potential to scavenge free radicals and are cytotoxic against the MCF-7 cancer cell line. [ABSTRACT FROM AUTHOR]