A
Alexandra Sousa
Researcher at University of Porto
Publications - 36
Citations - 898
Alexandra Sousa is an academic researcher from University of Porto. The author has contributed to research in topics: Superoxide dismutase & APX. The author has an hindex of 14, co-authored 35 publications receiving 716 citations. Previous affiliations of Alexandra Sousa include University of Antwerp.
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Effect of 24-epibrassinolide on ROS content, antioxidant system, lipid peroxidation and Ni uptake in Solanum nigrum L. under Ni stress
Cristiano Soares,Alexandra Sousa,Ana Pinto,Manuel Azenha,Jorge Teixeira,Ricardo Antunes Azevedo,Fernanda Fidalgo +6 more
TL;DR: In this article, the effects of exogenous application of 24-epibrassinolide (24-EBL) in the physiological and biochemical responses of Solanum nigrum L. exposed to nickel (Ni) were evaluated.
Journal ArticleDOI
Acute effects of Benzo[a]pyrene, anthracene and a fuel oil on biomarkers of the common goby Pomatoschistus microps (Teleostei, Gobiidae).
Luis R. Vieira,Alexandra Sousa,Manuela F. Frasco,Inês Lima,Fernando Morgado,Lúcia Guilhermino +5 more
TL;DR: It is suggested that all the substances may induce oxidative stress on P. microps, with BaP and anthracene apparently having more oxidative stress potential than #4 WAF.
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Copper‐induced stress in Solanum nigrum L. and antioxidant defense system responses
Fernanda Fidalgo,Manuel Azenha,António F. Silva,Alexandra Sousa,Ana Santiago,Pedro Ferraz,Jorge Teixeira +6 more
TL;DR: Gene expression of the subtype 2d metallothioneins revealed to be Cu-enhanced throughout the plant body and correlated with Cu tissue levels, with the other MT1 and MT2 gene members downregulated in roots and upregulated in shoots contributing more as antioxidants in the latter organs than in Cu homeostasis.
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Ecotoxicological relevance of nano-NiO and acetaminophen to Hordeum vulgare L.: Combining standardized procedures and physiological endpoints.
TL;DR: Comparing the two studied approaches, it is concluded that the inclusion of several biochemical endpoints, especially those related to oxidative stress, resulted in a moresensitive analysis and thus, a more sensitive risk evaluation of these two contaminants for barley plants.
Journal ArticleDOI
SiO 2 nanomaterial as a tool to improve Hordeum vulgare L. tolerance to nano-NiO stress
Cristiano Soares,Simão Branco-Neves,Alexandra Sousa,Manuel Azenha,Ana Cunha,Ruth Pereira,Fernanda Fidalgo +6 more
TL;DR: The present study highlighted the protective role of nano-SiO2 in barley plants under nano-NiO stress, possibly due to the Si-mediated protection against oxidative stress, by a more proactive performance of the plant AOX system.