AI Article Synopsis
Article Abstract
Pesticides that persist in soils may be taken up by the roots of plants. One way to assess plant uptake is to theoretically predict the extent of plant uptake using a mathematical model. In this study, a model was developed to predict plant uptake of pesticide residues in soils using various parameters, such as pesticide mobility within soil, plant transpiration stream, root-soil transfer rate, plant growth, and pesticide dissipation in either soils or plants. The accuracy of the model was evaluated by comparing the modeled concentrations with measured uptake concentrations of chlorpyrifos (CP) in lettuce, grown on treated soils with concentrations of approximately 10 and 20 mg kg-1 CP. Measured concentrations of CP in lettuce at 21, 30, and 40 d after planting were between the 5th and 95th percentiles of model variation. A high correlation coefficient of > 0.97 between modeled and measured concentrations was found. Coefficients of variation of mean factors to residual errors were between 25.3 and 48.2%. Overall, modeling results matched the experimental results well. Therefore, this plant uptake model could be used as an assessment tool to predict the extent of plant uptake of pesticide residues in soils.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5315371 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0172254 | PLOS |
Publication Analysis
Top Keywords
Similar Publications
Worldwide comparison of carbon stocks and fluxes between native and non-native forests.
Biol Rev Camb Philos Soc
December 2024
Departamento de Ciencias de la Vida, Universidad de Alcalá, Facultad de Ciencias, Área de Ecología, Ctra. Madrid-Barcelona, km.33, 600, 28805, Alcalá de Henares, Madrid, Spain.
Climate change is one of the main challenges that human societies are currently facing. Given that forests represent major natural carbon sinks in terrestrial ecosystems, administrations worldwide are launching broad-scale programs to promote forests, including stands of non-native trees. Yet, non-native trees may have profound impacts on the functions and services of forest ecosystems, including the carbon cycle, as they may differ widely from native trees in structural and functional characteristics.
View Article and Find Full Text PDFQuantitative trait loci for grain mineral element accumulation in Vietnamese rice landraces.
PLoS One
December 2024
UMR DIADE, IRD, CIRAD, Université de Montpellier, Montpellier, France.
Rice (Oryza sativa L.) is a staple food for half of the world's population, and its biofortification is a key factor in fighting micronutrient malnutrition. However, harmful heavy metals tend to accumulate in rice grains due to soil and water contamination.
View Article and Find Full Text PDFPrecise application of water and fertilizer to crops: challenges and opportunities.
Front Plant Sci
December 2024
Key Laboratory of Applied Ecology of Loess Plateau, College of Life Science, Yan'an University, Yan'an, Shaanxi, China.
Precision water and fertilizer application technologies have emerged as crucial innovations in sustainable agriculture, addressing the pressing need to enhance crop yield and quality while optimizing resource use and minimizing environmental impacts. This review systematically explores the latest advancements in precision water and fertilizer application technologies. It examines the integration of advanced sensors, remote sensing, and machine learning algorithms in precision agriculture, assessing their roles in optimizing irrigation and nutrient management.
View Article and Find Full Text PDFFlavonoid Derivatives Isolated from Ameliorate Insulin Resistance via Modulation of IRS-1/PI3K/Akt/FOXO1 Pathway in HepG2 Cells.
J Med Food
December 2024
Department of Food Science and Biotechnology, Andong National University, Andong, Korea.
In this study, two high-content flavonoid derivatives [3-8 biapigenin (HM 104) and quercetin-3--β--galactopyranoside (HM 111)] were obtained through the bioactivity-guided isolation of antidiabetic compounds from flowers. HM 104 and HM 111 exhibited good glucose consumption in fatty acid-induced insulin-resistant HepG2 cells. Moreover, both active compounds enhanced glucose uptake by restoring the expression of key regulators of glucose metabolism, including insulin receptor substrate 1, phosphoinositide 3-kinase, protein kinase B, and glucose transporter type 4, and by mitigating the expression of forkhead box O1 and the factors involved in gluconeogenesis.
View Article and Find Full Text PDFAnti-hepatoma effect of homologous delivery of doxorubicin by HepG2 cells.
Int J Pharm
December 2024
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China. Electronic address:
Compared to conventional polymer-based and biomaterial carriers, cells as vehicles for delivering bioactive molecules in the treatment of tumor diseases offer characteristics such as non-toxicity, biocompatibility, low immunogenicity, and prolonged in vivo circulation. However, the focus of current cell drug delivery systems predominantly lies on live cells, such as red blood cells, white blood cells and others. Here, a drug delivery strategy targeting liver cancer utilizing cryo-shocked liver cancer cells (HepG2) as carriers was presented, and non-proliferative HepG2 cells particles loaded with DOX (HepG2-DOX) was effectively prepared, which has good homologous targeting.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!