Research note: Ecotype differentiation in qualitative content of water soluble organic compounds between marine and brackish Fucus vesiculosus L. (Phaeophyceae)
Artikel i vetenskaplig tidskrift, 2009

In the present study we compared the contents of water soluble organic compounds of the marine intertidal ecotype of Fucus vesiculosus (Phaeophyceae) from the Norwegian Sea (34 practical salinity units, psu) with the sublittoral ecotype of F. vesiculosus from the brackish Bothnian Sea (5 psu). Nuclear magnetic resonance spectra revealed that marine F. vesiculosus had additional types of water soluble organic compounds compared with brackish F. vesiculosus. The results suggested that glycine betaine in the marine ecotype could be the reason for this ecotype differentiation. Furthermore, the qualitative differences between the ecotypes were the same after one week's treatment of marine algae in brackish water and of brackish algae in marine water. These suggest that the additional types of water soluble organic compounds in marine F. vesiculosus are not caused by the salinity conditions at the growth sites. Further research concerning other environmental factors that may influence ecotype differentiation of water soluble organic compounds qualitative content and adaptation in F. vesiculosus is recommended.

salinity

plants

mannitol

mannitol

C-13 NMR

tolerance

Norwegian Sea

algae

nuclear magnetic resonance

glycine betaine

species-diversity

Bothnian Sea

adaptation

Författare

A. M. Gylle

Mittuniversitetet

Dan Isaksson

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

N. G. A. Ekelund

Mittuniversitetet

Phycological Research

1322-0829 (ISSN) 1440-1835 (eISSN)

Vol. 57 127-130

Ämneskategorier

Fysikalisk kemi

DOI

10.1111/j.1440-1835.2009.00529.x