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Production of transparent exopolymer particles (TEP) in the nitrogen fixing cyanobacterium Anabaena flos-aquae OL-K10

100%

Surosz W., Palinska K. A., Rutkowska A.

Oceanologia

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2006

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tom 48

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nr 3

The aim of the study was to measure the transparent exopolymer particles (TEP) concentration in cultures of Anabaena flos-aquae OL-K10 and to determine the relationship between the quantity of particles produced and the light intensity, the age of the culture and the presence of nitrogen in the culture medium. This is the first time TEP production has been investigated in the Nostocales, an order of nitrogen-fixing phytoplankton species. The results showed that TEP production depends on the presence of nitrogen in the culture medium. The longer the culture is grown, the higher the correlation between its TEP content and its chlorophyll a concentration.

2

Effect of salinity, temperature and light on growth of Anabaena flos-aquae and Nostoc sp.div. [cyanobacteria, blue-green algae]

86%

Plinski M., Dziopa M.

Oceanological Studies

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2001

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tom 30

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nr 1-2

3

A correlation matrix of alkaline phosphatase and sporulation in diazotrophic cyanobacteria and its thermo-tolerant mutant

72%

Pandey M., Tiwari D. N.

Polish Journal of Microbiology

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2004

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tom 53

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nr 4

Alkaline phosphatase (phosphomonoesterase i.e. PMEase) activity in heterocystous cyanobacteria Anabaena flos-aquae, Nostoc calcicola, Calothrix brevissima, Scytonema javanicum and Hapalosiphon intricatus is known to be temperature and pH dependent. Maximum level of enzyme activity was recorded at either 35°C or 37.5°C. Also, the cell bound phosphomonoesterase enzyme was shown to exhibit pH optima of 10.0 or 10.2. A thermo-tolerant (tr) mutant isolated after MNNG (N-methyl-N'-nitro-N-nitrosoguanidine) mutagenesis in Calothrix brevissima exhibited 10°C higher temperature optima and comparatively high pH optima (pH 10.4) for phosphomonoesterase enzyme. The mutant grew with a maximum growth rate (k) at 50°C. Activation energy (Ea) for cyanobacterial strains was in a narrow range between 45 to 52 kJ mol⁻¹. A little variation in temperature and pH optima was also observed in phosphomonoesterase activity of Calothrix brevissima and its thermo-tolerant mutant while utilizing various organic phosphates as substrate what indicated the substrate dependence temperature and pH optima. Cyanobacterial strains grown at their respective temperature and pH optima differentiated spores less frequently though, coupled with early initiation of spore.

4

Blue-green algae blooms in the Gulf of Gdansk and surrounding area

51%

Plinski M., Musial A., Ostrowski B.

Oceanological Studies

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1998

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tom 27

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nr 1

5

The sorption and removal of heavy metals by algal biomasses

44%

Pawlik-Skowronska B., Pirszel J., Skowronski T.

Oceanological Studies

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1998

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tom 27

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nr 1

Ograniczanie wyników

3 Oceanological Studies

1 Oceanologia

1 Polish Journal of Microbiology

2 Plinski M.

1 Dziopa M.

1 Musial A.

1 Ostrowski B.

1 Palinska K. A.

1 Pandey M.

1 Pawlik-Skowronska B.

1 Pirszel J.

1 Rutkowska A.

1 Skowronski T.

1 Surosz W.

1 Tiwari D. N.

1 2006

1 2004

1 2001

2 1998

Production of transparent exopolymer particles (TEP) in the nitrogen fixing cyanobacterium Anabaena flos-aquae OL-K10

Effect of salinity, temperature and light on growth of Anabaena flos-aquae and Nostoc sp.div. [cyanobacteria, blue-green algae]

A correlation matrix of alkaline phosphatase and sporulation in diazotrophic cyanobacteria and its thermo-tolerant mutant

Blue-green algae blooms in the Gulf of Gdansk and surrounding area

The sorption and removal of heavy metals by algal biomasses