Pigment, carbohydrate and protein content of microbial mats from northern Victoria Land lake sediments

The composition of algal pigments and extracellular polymeric substances (EPS) was determined in microbial mats from two lakes in Victoria Land (Continental Antarctica) with different lithology and environmental features. The aim was to expand knowledge of benthic autotrophic communities in Antarctic lacustrine ecosystems, providing reference data for future assessment of possible changes in environmental conditions and freshwater communities. The results of chemical analyses were supported by microscopy observations. Pigment profiles showed that filamentous cyanobacteria are dominant in both lakes. Samples from the water body at Edmonson Point had greater biodiversity, fewer pigments and lower EPS ratios than those from the lake at Kar Plateau. Differences in mat composition and in pigment and EPS profile between the two lakes are discussed in terms of local environmental conditions such as lithology, ice-cover and UV radiation. The present study suggests that a chemical approach could be useful in the study of benthic communities in Antarctic lakes and their variations in space and time.

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Cite this as

Borghini, Francesca, Colacevich, Andrea, Bargagli, Roberto (2010). Dataset: Pigment, carbohydrate and protein content of microbial mats from northern Victoria Land lake sediments. https://doi.org/10.1594/PANGAEA.807943

DOI retrieved: 2010

Additional Info

Field Value
Imported on November 29, 2024
Last update November 29, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.807943
Author Borghini, Francesca
Given Name Francesca
Family Name Borghini
More Authors
Colacevich, Andrea
Bargagli, Roberto
Source Creation 2010
Publication Year 2010
Resource Type application/zip - filename: Borghini_2010
Subject Areas
Name: LakesRivers

Related Identifiers
Title: A study of autotrophic communities in two Victoria Land lakes (Continental Antarctica) using photosynthetic pigments
Identifier: https://doi.org/10.4081/jlimnol.2010.333
Type: DOI
Relation: IsSupplementTo
Year: 2010
Source: Journal of Limnology
Authors: Borghini Francesca , Colacevich Andrea , Bargagli Roberto .