Detailed Information on Publication Record
2012
Differences in the ultrastructure of two selected taxa of phytoplankton in a thermally stratified Lake Holzmaar (Germany)
MESSYASZ, Beata, Joanna CZERWIK-MARCINKOWSKA, Andreas LÜCKE and Bohuslav UHERBasic information
Original name
Differences in the ultrastructure of two selected taxa of phytoplankton in a thermally stratified Lake Holzmaar (Germany)
Name in Czech
Rozdíly v ultrastruktuře dvou vybraných taxonů fytoplanktonu v termálně stratifikovaném jezeře Holzmaar (Německo)
Authors
MESSYASZ, Beata (616 Poland), Joanna CZERWIK-MARCINKOWSKA (616 Poland), Andreas LÜCKE (276 Germany) and Bohuslav UHER (203 Czech Republic, guarantor, belonging to the institution)
Edition
Biodiversity: Research and Conservation, Poznan, Adam Mickiewicz University, 2012, 1897-2810
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
Poland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
RIV identification code
RIV/00216224:14310/12:00064082
Organization unit
Faculty of Science
Keywords (in Czech)
Plaktothrix rubescens; Synechocystis aquatili; Desmodesmus grahneisii; ultrastruktura; autekologie
Keywords in English
Planktothrix rubescens; Synechocystis aquatilis; Desmodesmus grahneisii; ultrastructure; autecology
Tags
International impact, Reviewed
Změněno: 25/2/2013 16:01, RNDr. Bohuslav Uher, Ph.D.
Abstract
V originále
This paper presents the results of ultrastructural studies and ecological aspects of some phytoplankton species belongingto the groups of cyanobacteria (Planktothrix rubescens, Synechocystis aquatilis) and green algae (Desmodesmus grahneisii). Specimens were collected during summertime from the mesotrophic and stratified Lake Holzmaar (Western Germany) as planktonic from the pelagic zone. The highest cyanobacterium P. rubescens concentration was detected in the metalimnion where the alkaline pH, low phosphorus and high nitrogen contents were recorded. It was characterized by straight filaments up to 1000 um long and 5.4-8 um wide and numerous aerotopes in cells. The accompanying algae were identified by ultrastructuralanalysis and photographic documentation was provided. In the case of D. grahneisii, chloroplast was concentrated in the parietal part of cell with one large, oval pyrenoid and, in addition, the granular and spiny cell wall clearly showed important taxonomical criteria for Desmodesmus genera. This is in contrast with cyanobacterium S. aquatilis where the presence of a homogeneous content with visible chromatoplasma was mostly distributed through the cell. This algal association was stable in the epilimnion characterized by the presence of high temperature, pH values, nitrate nitrogen and oxygen concentrations.