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@article{1089054, author = {Messyasz, Beata and CzerwikandMarcinkowska, Joanna and Lücke, Andreas and Uher, Bohuslav}, article_location = {Poznan}, article_number = {1}, doi = {http://dx.doi.org/10.2478/v10119-012-0029-y}, keywords = {Planktothrix rubescens; Synechocystis aquatilis; Desmodesmus grahneisii; ultrastructure; autecology}, language = {eng}, issn = {1897-2810}, journal = {Biodiversity: Research and Conservation}, title = {Differences in the ultrastructure of two selected taxa of phytoplankton in a thermally stratified Lake Holzmaar (Germany)}, url = {http://www.brc.amu.edu.pl/s2_c21.html}, volume = {28}, year = {2012} }
TY - JOUR ID - 1089054 AU - Messyasz, Beata - Czerwik-Marcinkowska, Joanna - Lücke, Andreas - Uher, Bohuslav PY - 2012 TI - Differences in the ultrastructure of two selected taxa of phytoplankton in a thermally stratified Lake Holzmaar (Germany) JF - Biodiversity: Research and Conservation VL - 28 IS - 1 SP - 55-62 EP - 55-62 PB - Adam Mickiewicz University SN - 18972810 KW - Planktothrix rubescens KW - Synechocystis aquatilis KW - Desmodesmus grahneisii KW - ultrastructure KW - autecology UR - http://www.brc.amu.edu.pl/s2_c21.html L2 - http://www.brc.amu.edu.pl/s2_c21.html N2 - 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. ER -
MESSYASZ, Beata, Joanna CZERWIK-MARCINKOWSKA, Andreas LÜCKE a Bohuslav UHER. Differences in the ultrastructure of two selected taxa of phytoplankton in a thermally stratified Lake Holzmaar (Germany). \textit{Biodiversity: Research and Conservation}. Poznan: Adam Mickiewicz University, 2012, roč.~28, č.~1, s.~55-62. ISSN~1897-2810. Dostupné z: https://dx.doi.org/10.2478/v10119-012-0029-y.
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