eCite Digital Repository

Photoprotection capacity differs among diatoms: possible consequences on the spatial distribution of diatoms related to fluctuations in the underwater light climate

Citation

Lavaud, J and Strzepek, RF and Kroth, PG, Photoprotection capacity differs among diatoms: possible consequences on the spatial distribution of diatoms related to fluctuations in the underwater light climate, Limnology and Oceanography, 52, (3) pp. 1188-1194. ISSN 0024-3590 (2007) [Refereed Article]


Preview
PDF
Pending copyright assessment - Request a copy
680Kb
  

DOI: doi:10.4319/lo.2007.52.3.1188

Abstract

In this study, we show a fundamental difference between diatom species from different marine habitats in their ability to cope with changes in irradiance. Estuarine species show a higher and more flexible capacity for photoprotection than oceanic and coastal species, and when exposed to excess light, the impairment of their photosynthetic capacity because of photoinhibition was reduced. This resulted in maintenance of growth in a fluctuating light regime, conferring the estuarine species an adaptive advantage. The ability of diatoms, and to a larger extent other phytoplankton, to occupy a wide range of ecological niches depends critically on their capacity to exploit the differences in underwater light climate. These results might explain how diatoms adapt to the challenge of maintaining optimal photosynthetic production in turbulent waters, in which the rate of light change is high.

Item Details

Item Type:Refereed Article
Keywords:light, photosynthesis, photoprotection, adaptation, diatom
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Biological oceanography
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Oceanic processes (excl. in the Antarctic and Southern Ocean)
UTAS Author:Strzepek, RF (Dr Robert Strzepek)
ID Code:147708
Year Published:2007
Web of Science® Times Cited:175
Deposited By:Australian Antarctic Program Partnership
Deposited On:2021-11-11
Last Modified:2021-11-15
Downloads:0

Repository Staff Only: item control page