Lidwina BertrandNational Scientific and Technical Research Council | conicet · CIBICI - Centro de Investigaciones en Bioquímica Clínica e Inmunología
Lidwina Bertrand
MSc Environmental Engineering - PhD
Research Scientist (Inv. Asistente) - CIBICI CONICET
About
25
Publications
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348
Citations
Introduction
Additional affiliations
April 2021 - present
March 2019 - March 2021
May 2018 - June 2018
Education
April 2012 - December 2016
March 2009 - December 2011
March 2004 - March 2009
Publications
Publications (25)
Fungal and plant secondary metabolites modulate host-pathogen interactions. However, the participation of fumonisin B1 (FB1) in the Fusarium verticillioides-maize pathosystem is unclear. In this work, cell death and the reactive oxygen species-phytohormone imbalance interplay as well as their correlation with the FB1 phytotoxicity in two maize geno...
The diurnal variation of pollutants such as particles and carbon monoxide (CO) in urban environments typically follow the traffic density, with two peaks coinciding with the weekday morning and evening rush-hour periods. However, observations made in central Brisbane, the third largest city in Australia, demonstrated an anomalous diurnal variation...
According to the World Health Organization (WHO) air pollution in urban areas, mainly associated with inhalation of gaseous pollutants and particulate matter emitted from motor vehicles, is responsible for one million deaths per year. Carbon monoxide (CO) from the incomplete combustion of fuel is known to bind with hemoglobin, decreasing the blood...
Background and aim
Fungal and plant secondary metabolites modulate the plant-pathogen interactions. However, the participation of fumonisins in the Fusarium verticillioides -maize pathosystem is unclear. In this work was studied the cell death, and the reactive oxygen species (ROS) - phytohormone imbalance interplay underlying the phytotoxicity of...
The endobenthic bivalves are widely used as a bioindicators since they inhabit the sediment-water interface and are able to accumulate a different kind of contaminants. In the present work, we evaluated wild Corbicula largillierti (Phillippi, 1844) as a bioindicator of water quality in the central region of Argentina. The responses at different lev...
Simple models capable of describing spatial and temporal patterns of pollutants are needed to understand surface water quality and to identify the main processes that influence the fate and transport of pollutants. This study combines exploratory factor analysis with multilevel and structural equation modeling to: find spatial and temporal patterns...
Chemical analysis of pollutants in environmental matrices cannot always offer powerful evidence on their impact and toxicity on the aquatic biota. This paper reports the ability of Potamogeton pusillus to highlight in an aquatic ecosystem those sites with higher environmental degradation through an active biomonitoring. Organisms were exposed for 9...
Endings are a great opportunity to reflect on past decisions. As both of us wrap up our PhDs in Ecotoxicology (Fernando at the National University of Mar del Plata and Lidwina at the National University of Córdoba, both in Argentina), we keep thinking of the questions we struggled with as students and the conclusions we reached. One of the biggest...
Integrated Biomarkers Response (IBR) index have been developed as a practical and robust tool to assess the susceptibility to pollutants using multiple biomarker responses. Neonicotinoid insecticides are nowadays one of the most sold pesticides worldwide. Nevertheless, imidacloprid (IMI) sub-lethal effects such as oxidative stress (OS) on fishes ar...
The aim of this study was to evaluate the ability of Palaemonetes argentinus to evidence the environmental degradation due to pollutants mixture in a freshwater aquatic ecosystem. For this purpose, an active monitoring (96 h exposure) was carried out in seven sites along the Ctalamochita River basin (Córdoba, Argentina), as a case of study. Our res...
Aquatic biotas frequently inhabit a multi-stressor environment that affects their structure and function. The hypothesis of this work is that differential responses at different levels of organization will be found in J. multidentata exposed to the multi-stressor context of the Ctalamochita River (Córdoba, Argentina), and that those responses will...
El objetivo de este estudio fue investigar la influencia de la contaminación del Río Suquía sobre la composición de la comunidad bacteriana en agua, suelo de ribera y sedimentos en dos períodos de caudal de agua. Para ello se tomaron muestras de los tres hábitats (agua, sedimento, y suelo de ribera) en cinco sitios contaminados y un sitio de refere...
The objective of the present study was to investigate the influence of environmental conditions
on the bacterial community composition in water, sediment and riparian soil during different water flow
periods. For this purpose, samples of three habitats (water, sediment and riparian soil) were collected from
five polluted sites and one reference sit...
The contamination of the aquatic environments with organophosphorus pesticides may affect non-target organisms. The aim of this study was to evaluate the toxic effects of the insecticide chlorpyrifos (CPF) at environmental concentrations on the freshwater macrophyte Potamogeton pusillus belonging to a genus of worldwide distribution. For this purpo...
The aim of the present study was to evaluate the accumulation of cypermethrin (CYP)
and chlorpyrifos (CPF) when the fish Jenynsia multidentata was exposed to these pesticides
singly and in technical and commercial mixtures. Adult female fishes were exposed over 96 h to
0.04 µg/L of CYP; 0.4 µg/L of CPF; 0.04 µg/L CYP + 0.4 µg/L CPF in a technica...
The aim of this study was to evaluate the toxic effects of chlorpyrifos (CPF) at environmental concentrations over the shrimp Palaemonetes argentinus, a South American native species. Organisms were exposed in laboratory conditions at relevant environmental concentrations of CPF (from 3.5 to 94.5 ng CPF L-1) for 96
h. A wide battery of biochemical...
The aim of this study was to evaluate changes in polyphenol profile and antioxidant capacity of five soluble coffees throughout a simulated gastro-intestinal digestion, including absorption through a dialysis membrane. Our results demonstrate that both polyphenol content and antioxidant capacity were characteristic for each type of studied coffee,...
Projects
Project (1)
General Objective: * Evaluate the use of aquatic pollution biomarkers in native species that show an early response to stressful toxic events with organic and inorganic nature.
Specifics Objectives: * Evaluate the response of effect and exposure biomarkers in Palaemonetes argentinus experimentally exposed to chlorpyrifos and zinc.
* Evaluate the response of effect and exposure biomarkers in Potamogeton pusillus experimentally exposed to chlorpyrifos and zinc. * Establish the utility of selected bioindicators (P. argentinus y P. pusillus) to perform field studies in Ctalamochita River, considering areas with different degree and type of contamination.
