Differences in the ultrastructure of two selected taxa of phytoplankton in a thermally stratified Lake Holzmaar (Germany)

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). 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.

Základní údaje

• Originální název: Differences in the ultrastructure of two selected taxa of phytoplankton in a thermally stratified Lake Holzmaar (Germany)
• Název česky: Rozdíly v ultrastruktuře dvou vybraných taxonů fytoplanktonu v termálně stratifikovaném jezeře Holzmaar (Německo)
• Autoři: MESSYASZ, Beata (616 Polsko), Joanna CZERWIK-MARCINKOWSKA (616 Polsko), Andreas LÜCKE (276 Německo) a Bohuslav UHER (203 Česká republika, garant, domácí).
• Vydání: Biodiversity: Research and Conservation, Poznan, Adam Mickiewicz University, 2012, 1897-2810.

Další údaje

• Originální jazyk: angličtina
• Typ výsledku: Článek v odborném periodiku
• Obor: 10600 1.6 Biological sciences
• Stát vydavatele: Polsko
• Utajení: není předmětem státního či obchodního tajemství
• WWW: URL
• Kód RIV: RIV/00216224:14310/12:00064082
• Organizační jednotka: Přírodovědecká fakulta
• Doi: http://dx.doi.org/10.2478/v10119-012-0029-y
• Klíčová slova česky: Plaktothrix rubescens; Synechocystis aquatili; Desmodesmus grahneisii; ultrastruktura; autekologie
• Klíčová slova anglicky: Planktothrix rubescens; Synechocystis aquatilis; Desmodesmus grahneisii; ultrastructure; autecology
• Štítky: AKR, rivok
• Příznaky: Mezinárodní význam, Recenzováno

Anotace

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.