Root length as a bioindicator of pesticide concentration in irrigation water.

Overusing pesticides to increase crop productivity is a global problem that harms ecosystems and can adversely affect human health. Therefore, low-cost, simple, and easy-to-use pesticide biomonitoring methods are needed to assess the impact of these products on the environment. In this study, we employed the root development of soybean (Glycine max (L.

CuO nanoparticles' effect on the photosynthetic performance in seed tissues of Inga laurina (Fabaceae).

Copper oxide nanoparticles (CuONPs) have been produced on a large scale because they can be applied across various fields, especially in nano-enabled healthcare and agricultural products. However, the increasing use of CuONPs leads to their release and accumulation into the environment. The CuONPs uptaken by seeds and their implications on germination behavior have been reported, but little is known or understood about their impact on photosynthesis in seed tissues.

Effects of copper oxide nanoparticles on germination of Sesbania virgata (FABACEAE) plants.

Nanotechnology is a field that, over the years, has been growing in several research areas, such as medicine, agriculture and cosmetics, among others. As a result, there is a continuous increase in the production, use and disposal of these materials in the environment. The behaviour and (bio) activity of these materials in the atmosphere, water and soil are not fully studied.

In vitro and in vivo impact assessment of eco-designed CuO nanoparticles on non-target aquatic photoautotrophic organisms.

This work has assessed the impact of copper oxide nanoparticles (CuONPs), designed via green route, toward photosynthetic apparatus on aquatic photoautotrophic organisms. In order to filling knowledge gaps, in vitro and in vivo assays were performed, using cyanobacterial phycocyanin (C-PC) from Arthrospira platensis and Lemna valdiviana plants (duckweed), respectively. Impairment in light energy transfer became evident in C-PC exposed to CuONPs, giving rise to an increase of light absorption and a suppression of fluorescence emission.

How does aquatic macrophyte Salvinia auriculata respond to nanoceria upon an increased CO source? A Fourier transform-infrared photoacoustic spectroscopy and chlorophyll a fluorescence study.

With the continued increase of technological uses of cerium oxide nanoparticles (CeO NPs or nanoceria) and their unregulated disposal, the accumulation of nanoceria in the environment is inevitable. Concomitantly, atmospheric carbon dioxide (CO) levels continue to rise, increasing the concentrations of bicarbonate ions in aquatic ecosystems. This study investigates the influence of CeO NPs (from 0 to 100 μgL) in the presence and absence of an elevated bicarbonate (HCO) ion concentration (1 mM), on vibrational biochemical parameters and photosystem II (PSII) activity in leaf discs of Salvinia auriculata.