Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Response of Microcystis aeruginosa BCCUSP 232 to barley (Hordeum vulgare L.) straw degradation extract and fractions

Full text
Author(s):
Mecina, Gustavo Franciscatti ; Dokkedal, Anne Ligia ; Saldanha, Luiz Leonardo ; Chia, Mathias Ahii ; Cordeiro-Araujo, Micheline Kezia ; Bittencourt-Oliveira, Maria do Carmo ; da Silva, Regildo Marcio Goncalves
Total Authors: 7
Document type: Journal article
Source: Science of The Total Environment; v. 599, p. 1837-1847, DEC 1 2017.
Web of Science Citations: 7
Abstract

The eutrophication of aquatic ecosystems is a serious environmental problem that leads to increased frequency of cyanobacterial blooms and concentrations of cyanotoxins. These changes in aquatic chemistry can negatively affect animal and human health. Environment-friendly methods are needed to control bloom forming cyanobacteria. We investigated the effect of Hordeum vulgare L. (barley) straw degradation extract and its fractions on the growth, oxidative stress, antioxidant enzyme activities, and microcystins content of Microcystis aeruginosa (Razing) Razing BCCUSP232. Exposure to the extract significantly (p < 0.05) inhibited the growth of M. aeruginosa throughout the study, whereas only the highest concentration of fractions 1 and 2 significantly (p < 0.05) reduced the growth of the cyanobacterium on day 10 of the experiment. The production of reactive oxygen species (ROS), lipid peroxidation and antioxidant enzyme activities were significantly (p < 0.05) altered by the extract and fractions 1 and 2. Phytochemical profiling of the extract and its fractions revealed that the barley straw degradation process yielded predominantly phenolic acids. These results demonstrate that barley straw extract and its fractions can efficiently interfere with the growth and development of M. aeruginosa under laboratory conditions. (C) 2017 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 14/17126-0 - Characterization of compounds Hordeum vulgare (Poaceae) and Tridax procumbens L. (Asteraceae) for the development of alternative control method of cyanobacteria cyanotoxins producer
Grantee:Gustavo Franciscatti Mecina
Support Opportunities: Scholarships in Brazil - Doctorate