scholarly journals Detection of the toxic cyanobacteria Nodularia spumigena by means of a 4-keto-myxoxanthophyll-like pigment in the Baltic Sea

2004 ◽  
Vol 275 ◽  
pp. 69-78 ◽  
Author(s):  
L Schlüter ◽  
K Garde ◽  
H Kaas
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
Nodularia Spumigena ◽  
Toxic Cyanobacteria ◽  
The Baltic

scholarly journals Response of <i>Nodularia spumigena</i> to <i>p</i>CO<sub>2</sub> – Part 1: Growth, production and nitrogen cycling

2012 ◽  
Vol 9 (8) ◽  
pp. 2973-2988 ◽  
Author(s):  
N. Wannicke ◽  
S. Endres ◽  
A. Engel ◽  
H.-P. Grossart ◽  
M. Nausch ◽  
...  
Keyword(s):  
Organic Matter ◽  
Baltic Sea ◽  
N2 Fixation ◽  
Inorganic Nitrogen ◽  
High Pco2 ◽  
The Baltic Sea ◽  
Nodularia Spumigena ◽  
Co2 Concentrations ◽  
Elemental Stoichiometry ◽  
The Baltic

Abstract. Heterocystous cyanobacteria of the genus Nodularia form extensive blooms in the Baltic Sea and contribute substantially to the total annual primary production. Moreover, they dispense a large fraction of new nitrogen to the ecosystem when inorganic nitrogen concentration in summer is low. Thus, it is of ecological importance to know how Nodularia will react to future environmental changes, in particular to increasing carbon dioxide (CO2) concentrations and what consequences there might arise for cycling of organic matter in the Baltic Sea. Here, we determined carbon (C) and dinitrogen (N2) fixation rates, growth, elemental stoichiometry of particulate organic matter and nitrogen turnover in batch cultures of the heterocystous cyanobacterium Nodularia spumigena under low (median 315 μatm), mid (median 353 μatm), and high (median 548 μatm) CO2 concentrations. Our results demonstrate an overall stimulating effect of rising pCO2 on C and N2 fixation, as well as on cell growth. An increase in pCO2 during incubation days 0 to 9 resulted in an elevation in growth rate by 84 ± 38% (low vs. high pCO2) and 40 ± 25% (mid vs. high pCO2), as well as in N2 fixation by 93 ± 35% and 38 ± 1%, respectively. C uptake rates showed high standard deviations within treatments and in between sampling days. Nevertheless, C fixation in the high pCO2 treatment was elevated compared to the other two treatments by 97% (high vs. low) and 44% (high vs. mid) at day 0 and day 3, but this effect diminished afterwards. Additionally, elevation in carbon to nitrogen and nitrogen to phosphorus ratios of the particulate biomass formed (POC : POP and PON : POP) was observed at high pCO2. Our findings suggest that rising pCO2 stimulates the growth of heterocystous diazotrophic cyanobacteria, in a similar way as reported for the non-heterocystous diazotroph Trichodesmium. Implications for biogeochemical cycling and food web dynamics, as well as ecological and socio-economical aspects in the Baltic Sea are discussed.

Proteomic profiling of the Baltic Sea cyanobacterium Nodularia spumigena strain AV1 during ammonium supplementation

2010 ◽  
Vol 73 (9) ◽  
pp. 1670-1679 ◽  
Author(s):  
Simina Vintila ◽  
Sara Jonasson ◽  
Henrik Wadensten ◽  
Anna Nilsson ◽  
Per E. Andrén ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Proteomic Profiling ◽  
The Baltic Sea ◽  
Nodularia Spumigena ◽  
The Baltic

scholarly journals Response of <i>Nodularia spumigena</i> to <i>p</i>CO<sub>2</sub> – Part I: Growth, production and nitrogen cycling

2012 ◽  
Vol 9 (3) ◽  
pp. 2481-2522 ◽  
Author(s):  
N. Wannicke ◽  
S. Endres ◽  
A. Engel ◽  
H.-P. Grossart ◽  
M. Nausch ◽  
...  
Keyword(s):  
Organic Matter ◽  
Baltic Sea ◽  
N2 Fixation ◽  
Inorganic Nitrogen ◽  
High Pco2 ◽  
The Baltic Sea ◽  
Nodularia Spumigena ◽  
Co2 Concentrations ◽  
Elemental Stoichiometry ◽  
The Baltic

Abstract. Heterocystous cyanobacteria of the genus Nodularia form extensive blooms in the Baltic Sea contributing substantially to the total annual primary production. Moreover, they dispense a large fraction of new nitrogen to the ecosystem, when inorganic nitrogen concentration in summer is low. Thus, it is of great ecological importance to know how Nodularia will react to future environmental changes, in particular to increasing carbon dioxide (CO2) concentrations and what consequences there might arise for cycling of organic matter in the ocean. Here, we determined carbon (C) and dinitrogen (N2) fixation rates, growth, elemental stoichiometry of particulate organic matter and nitrogen turnover during batch growth of the heterocystous cyanobacterium Nodularia spumigena under glacial (180 ppm), present (380 ppm), and future (780 ppm) CO2 concentrations. Our results demonstrate an overall stimulating effect of rising pCO2 on C and N2 fixation, as well as on cell growth. An increase in pCO2 resulted in an elevation in growth rate, C and N2 fixation by 23%, 36% and 25%, respectively (180 ppm vs. 380 ppm) and by 27%, 2% and 4%, respectively (380 ppm vs. 780 ppm). Additionally, elevation in the carbon and nitrogen to phosphorus quota of the particulate biomass formed (POC:POP and PON:POP) was observed at high pCO2. Our findings suggest that rising pCO2 stimulates the growth of heterocystous diazotrophic cyanobacteria, in a similar way as reported for non-heterocystous diazotrophs. Implications for biogeochemical cycling and food web dynamics, as well as ecological and socio-economical aspects in the Baltic Sea are discussed.

scholarly journals Specific Chemical and Genetic Markers Revealed a Thousands-Year Presence of Toxic Nodularia spumigena in the Baltic Sea

Marine Drugs ◽  
2018 ◽  
Vol 16 (4) ◽  
pp. 116 ◽  
Author(s):  
Marta Cegłowska ◽  
Anna Toruńska-Sitarz ◽  
Grażyna Kowalewska ◽  
Hanna Mazur-Marzec
Keyword(s):  
Baltic Sea ◽  
Genetic Markers ◽  
The Baltic Sea ◽  
Specific Chemical ◽  
Nodularia Spumigena ◽  
The Baltic

scholarly journals Occurrence of the hepatotoxic cyanobacterium Nodularia spumigena in the Baltic Sea and structure of the toxin.

1989 ◽  
Vol 55 (8) ◽  
pp. 1990-1995 ◽  
Author(s):  
K Sivonen ◽  
K Kononen ◽  
W W Carmichael ◽  
A M Dahlem ◽  
K L Rinehart ◽  
...  
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
Nodularia Spumigena ◽  
The Baltic

Harvesting of Nodularia spumigena in the Baltic Sea: Assessment of Potentials and Added Benefits

2014 ◽  
Vol 296 ◽  
pp. 825-831 ◽  
Author(s):  
Joseph Santhi Pechsiri ◽  
Emma Risén ◽  
Maria E. Malmström ◽  
Nils Brandt ◽  
Fredrik Gröndahl
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
Nodularia Spumigena ◽  
The Baltic
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