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 (0): add | show Print this page

Effect of light on the metabolism of the foraminifera Cribroelphidium selseyense lacking photosymbionts and kleptoplasts
Lintner, M.; Schagerl, M.; Lintner, B.; Wanek, W.; Keul, N.; Heinz, P. (2022). Effect of light on the metabolism of the foraminifera Cribroelphidium selseyense lacking photosymbionts and kleptoplasts. Journal of Photochemistry and Photobiology B-Biology 11: 100133. https://dx.doi.org/10.1016/j.jpap.2022.100133
In: Journal of Photochemistry and Photobiology B-Biology. ELSEVIER SCIENCE SA: Lausanne. ISSN 1011-1344
Peer reviewed article  

Available in  Authors 

Keywords
    Cribroelphidium selseyense (Heron-Allen & Earland, 1911) [WoRMS]; Foraminifera [WoRMS]
    Marine/Coastal
Author keywords
    Foraminifera, Feeding experiments, Light-cycle, Light-intensity, Uptake experiments

Authors  Top 
  • Lintner, M.
  • Schagerl, M.
  • Lintner, B.
  • Wanek, W.
  • Keul, N.
  • Heinz, P.

Abstract
    Foraminifera are essential contributors to the marine carbon and nitrogen cycle. A small group of foraminifera hosts symbiotic microalgae and kleptoplasts and irradiance is a key variable influencing their metabolism. However, the majority of foraminifera is fully heterotrophic, and whether irradiance influences food ingestion patterns has remained an open question. We studied the food uptake of fully heterotrophic Cribroelphidium selseyense specimens exposed to varying light-dark cycles. Specimens obtained from the Baltic Sea were fed with lyophilised, isotopically labelled diatoms from the species of Phaeodactylum triconutum, to estimate the rate of food ingestion. We exposed the specimens to different light-dark cycles (0:24, 8:16, 16:8, 24:0 = light: dark) and irradiance intensities (0, 50, 100 and 200 µmol photons m−2 s−1) in this experiment. Differences in light-dark regime did not affect the food uptake rates of C. selseyense. Irradiance intensity, however, strongly affected food uptake, increasing with incubation time from day 1 to day 15. In parallel, the food uptake decreased with higher irradiance intensity. Therefore, we can conclude irradiance intensity and not the light-dark cycle affected food uptake of fully heterotrophic C. selseyense, leaving the mechanisms of how light intensity regulates food intake being unresolved yet.

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