Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data Systems
· Documents
· FAQ
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference

 

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [324289]
Differential sensitivity of fatty acids and lipid damage in Microcystis aeruginosa (cyanobacteria) exposed to increased temperature
de la Rosa, F.; De Troch, M.; Malanga, G.; Hernando, M. (2020). Differential sensitivity of fatty acids and lipid damage in Microcystis aeruginosa (cyanobacteria) exposed to increased temperature. Comp. Biochem. Physiol. C-Toxicol. Pharmacol. 235: 108773. https://dx.doi.org/10.1016/j.cbpc.2020.108773
In: Comparative Biochemistry and Physiology. Part C. Toxicology and Pharmacology. Elsevier: New York. ISSN 1532-0456; e-ISSN 1878-1659
Peer reviewed article  

Available in  Authors 

Keyword
    Microcystis aeruginosa (Kützing) Kützing, 1846 [WoRMS]
Author keywords
    Fatty acids; Lipid damage; Temperature ?6/?3 ratio

Authors  Top 
  • de la Rosa, F.
  • De Troch, M., more
  • Malanga, G.
  • Hernando, M.

Abstract
    Changes in fatty acid (FA) composition can mean a mechanism of acclimation of Cyanobacteria to climate change. The objective of the present study was to evaluate the effects of increased temperature on M. aeruginosa cultures in terms of FA content, lipid damage, biomass and reactive oxygen species (ROS). Unicellular cultures were exposed to high (29 °C) and control (26 °C) temperature for 12 days. Differential sensitivity of ω3 FAs was observed after 2 days of exposure to elevated temperature (29 °C). Also, no significant differences in ROS content at different temperatures were observed although there was a significant decrease compared to the value at the start of the incubation. Thus, low FA peroxidation of selected ω6 PUFAs and potentially increased activation of antioxidant systems, resulting in lower lipid damage (on average 35%), could explain the strong acclimation to high temperature as shown by the increased growth rate (11%) compared to the control conditions. In high temperature conditions we found a retarded desaturation to 18:3ω3 and 18:4ω3 PUFAs which were 40% lower compared with control at the end of incubation.

    Overall, growth rate and omega-6 FA were increased at high temperature as a mechanism of successful acclimation. This is highly relevant for the ecological role of M. aeruginosa as food source for grazers. A reduced FA level can have serious implications for the flow of energy and thus the overall functioning of the ecosystem.


All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors 


If any information here appears to be incorrect, please contact us
Back to Register of Resources
 
Quick links

MarBEF WIKI

Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)
Outreach

Science
Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca

WoRMS
part of WoRMS logo

ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin

EurOBIS

Geographic System

Datasets

 


Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org