The reflection of the photocatalytic properties of tio2 nanoparticles on photosynthetic activity of Spinacia oleracea plants | Pakistan Journal of Botany 2020

Author(s)

RAFIA AZMAT Department of Chemistry, University of Karachi,75270,Pakistan

IQBAL ALTAF Department of Chemistry, University of Karachi,75270,Pakistan

SUMEIRA MOIN Federal Urdu University of Arts, Science & Technology,Karachi, 75300,Pakistan

Abstract

The current era is the era of Nanotechnology which offers the potential advantages in almost all fields of Science, Engineering and Medicinal fields coupled with its potential damages including, economic interference leading to possible threats to the environment. In the present investigation, photocatalytic characteristics of TiO2 Nano-Particles (NPs) on photosynthetic activity of the Spinacia oleracea evaluated in a greenhouse experiment in triplicate. This article reveals the interaction of TiO2 NPs which results in several physicochemical alterations in Spinacia oleracea plants. It was observed that the application of TiO2 NPs has shown optimistic impacts on plant root and shoot length, fresh and dry biomass and moisture contents in comparison with control plants. The progressive influence of TiO2 NPs on processes of photosynthetic activity of the plants linked with improved absorption and transfer of solar energy by active electrons of pigments. It established that it was the consequences of the photocatalytic properties of titanium NPs followed by an increase in starch contents. The lower contents of reducing sugars indicate the active transfer of these molecules into starch contents in comparison of control plants. The identical concentration of pigments like Carotenoid (mg/g) and Xanthophyll (mg/g) in control and TiO2 NP plants showed inhibition of oxidative stress; confirmed through benzoic acid test. The starch iodometry test proves the activated metabolic pathway of plants in the presence of TiO2.

Publication Details

Page(s) 1229-1234

DOI 10.30848/PJB2020-4(2)

Published Journal: Pakistan Journal of Botany, Volume: 52, Issue: 4, Year: 2020

Keywords

TiO2 nanoparticles Spinacia oleracea Photocatalytic Properties

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