Comparison the Phytotoxicity of TiO2 nanoparticles with bulk particles on Amber 33 variety of rice (Oryza sativa) in vitro.
Journal Title: Scholars Academic Journal of Biosciences - Year 2015, Vol 3, Issue 3
Abstract
Abstract: This study focus on the phytotoxicity of TiO2 nanoparticles (NPs) compared with bulk TiO2 particles B on: germination parameters, vegetative traits, roots viability, Biomass of seedling and photosynthetic pigments of Amber 33 variety of Rice (Oryza Sativa) in vitro. There were induction in seed germination percentage using different concentrations of B particles, while it decreased when the seeds exposed to NPs at concentrations (10, 1 and 0.01) mg/ml compared with control. There were differences between the effects of NPs compared with B particles on germination percentage. The highest germination rate had seen at (0.1 and 0.01) mg/ml concentration of NPs. The same features had seen at (1 and 10) mg/ml of B particles. Other concentrations were reduce the germination rate. All concentrations of NPs were reduced mean germination time. The same reduction has seen at (1-10) mg/ml of B particles. The lower concentrations (0.1-0.01) mg/ml of it were increased. The concentrations of B particles (10, 1 and 0.1) mg/ml showed increased in mean daily germination, whereas higher concentrations of NPs (10 and 1) mg/ml decreased it. However slight increase at 0.1 mg/ml and 0.01 mg/ml of it in MDG was observed. All concentrations of B particles were increase: vigor index I, vigor index II, germination value and promoter indicator compared with control. There were different changing in vigor index I in dose of NPs depending manner. There were differences between the effects of NPs (0.01, 1 and 10) mg/ml compared with B particles on vigor index I, vigor index II and promoter indicator. B particles and NPs were not effect on: shoots, roots, hairy roots length and total of plant lengths. While there were induction in number of hairy roots using 0.01 mg/ml concentration of NPs. NPs (10 and 1) mg/ml concentrations were reduced the number of hairy roots compared with control. The effect of these concentrations were different from the effect of the same concentrations of B particles. NPs and B particles were not effect on: biomass of seedling, chlorophyll A, chlorophyll B and root viability except the medium concentration of B particles, (0.01mg/ml), it reduce root viability. Keywords: Oryza sativa; phytotoxicity; TiO2; nanoparticles.
Authors and Affiliations
Raghad DH Abdul Jalill, Alyaa M. Yousef
Hypoprolactinemic Properties of combined therapy of metformin, pioglitazone and aqueous extract of Delonix regia in streptozotocin-induced diabetic male and
Abstract: The effects of Delonix regia extract (d200mg, d300mg, and d400mg), metformin (m8.3mg, m12.5mg and m16.5mg), pioglitazone (p0.5mg, p0.7mg and p0.9mg) and combined formulation of metformin and extract (m6.25d150m...
Fertility Status of Soils in the Selected Regions of the Western Ghats of Karnataka, India
The present study was an attempt to know the fertility status of soils in five selected regions (H.D.Kote, Madikeri, Sakaleshpur, Shimoga and Sirsi) of the Western Ghats of Karnataka with Mysore region as control for com...
Algal biofuel: A symbol of sustainability in the developmental era
In this new era of ecofriendly renewable energy algae have received a lot of attention as a new biomass source. The striking features of algae which set them apart from other biomass sources are that these have a high bi...
Asymetric Dimethylarginine Levels and Dimethylarginine Dimethylaminohidrolase 2 Expression on Nitric Oxide Synthesis Pathway in Sprague Dawley Rats Induced Nicotinamide and Streptozotocin by Giving Physalis angulata L
Hyperglycemia in patients with diabetes will increase oxidative stress to the endothelium and cause endothelial dysfunction. Endothelial dysfunction related to oxidative stress due to hyperglycemia can be improved throug...
Haritaki A Boon To Herbalism – A Review
The demand for herbal therapeutics is increasing gradually in the world. The Indian system of medicines uses herbal preparations in majority for the management of diseases. Globally a large number of Pharmacological stud...