التفاصيل البيبلوغرافية
| العنوان: |
GST transcriptional changes induced by a toxic Microcystis aeruginosa strain in two bivalve species during exposure and recovery phases |
| المؤلفون: |
Antas P., Carneiro M., Reis B., Castelo-Branco R., Azevedo J., Urbatzka R., Campos A., Vasconcelos V., Martins J.C. |
| بيانات النشر: |
Springer International Publishing, 2018. |
| سنة النشر: |
2018 |
| مصطلحات موضوعية: |
bacterial toxin, glutathione transferase, glutathione transferase mu, glutathione transferase sigma 1, glutathione transferase sigma 2, unclassified drug, microcystin, algal bloom, bivalve, cyanobacterium, gene expression, metabolite, oxidative stress, pollution exposure, toxicology, Article, bacterial overgrowth, bacterial strain, chemical stress, controlled study, detoxification, DNA modification, gene induction, genetic analysis, genetic transcription, GST mu gene, GST sigma 1 gene, GST sigma 2 gene, hepatopancreas, Microcystis aeruginosa, Mytilus galloprovincialis, nonhuman, priority journal, protein expression, Ruditapes philippinarum, species difference, animal, drug effect, genetics, Microcystis, Mytilus, physiology, toxicity, toxicity testing, water pollutant, Bivalvia, Cyanobacteria, Venerupis (Ruditapes) philippinarum, Animals, Glutathione Transferase, Hepatopancreas, Microcystins, Toxicity Tests, Water Pollutants, Chemical |
| الوصف: |
Previous studies have demonstrated the modulation of glutathione transferases (GSTs) induced by microcystin (MC) alone or in combination with other cyanobacterial secondary metabolites in bivalves. However, interspecies information about which and how GST isoforms are affected by these secondary metabolites is still scarce, especially considering the dynamic process involving their uptake and elimination routes. In this context, the role of GSTs gene expression changes in response to a toxic Microcystis aeruginosa extract were examined for Mytilus galloprovincialis and Ruditapes philippinarum during exposure and recovery phases. The expression levels of sigma 1, sigma 2, pi and mu-class GST genes were analyzed in the hepatopancreas of both bivalve species during cyanobacteria extract exposure (24 h) and post-exposure (24 and 72 h). Only a significant induction of sigma 1-class GST expression was observed for R. philippinarum upon 24-hour exposure of both bivalve species to Microcystis extract. During the recovery phase, GST transcriptional changes for M. galloprovincialis were characterized by an early induction (24 h) of sigma 1 and sigma 2 transcripts. On the other hand, GST transcriptional changes for R. philippinarum during post-exposure phase were characterized by an early induction (24 h) of sigma 1 and mu transcripts and a later induction (72 h) of the four analyzed GST transcripts. Such differences reflect variable GST response mechanisms to cope with MC-producing cyanobacterial blooms exposure between these two bivalve species, revealing a higher sensitivity of R. philippinarum to Microcystis-induced stress than M. galloprovincialis. The results also suggest a much higher level of activity of the GST detoxification system during the recovery phase compared to the period of the stress exposure for both bivalve species. © 2018, Springer Science+Business Media, LLC, part of Springer Nature. |
| نوع الوثيقة: |
journal article |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| العلاقة: |
15733017, 09639292 |
| DOI: |
10.1007/s10646-018-1980-y |
| الإتاحة: |
https://hdl.handle.net/10216/120273Test |
| حقوق: |
restricted access |
| رقم الانضمام: |
rcaap.com.UP.repositorio.aberto.up.pt.10216.120273 |
| قاعدة البيانات: |
RCAAP |
