2011-08-01

Jan 30, 2019 In the Baltic Sea, the heterocystous diazotrophic cyanobacteria Nodularia spumigena and Aphanizo- menon sp. are the dominant species of

111-120 ISSN: 0018-8158 Subject: Nodularia, etc ; aquatic organisms; drought; lotic systems To quantify Nodularia spumigena in copepod guts, a real-time qPCR assay was applied using Nodularia-specific primers. From each experi- mental replicate, 3 samples (2 to 3 ind. sample –1 ) were analysed and a mean amount of N. spumigena DNA ind. –1 was estimated. Nitrogen, iron, and silica are widely considered to be the most important nutrients that limit phytoplankton growth in the world's oceans. Though clearly important in lakes, the role of phosphorus has been largely ignored in the ocean.

Nodularia spumigena sinica

In Australia it occurs in estuaries [1–3], arid and semi-arid brackish inland Nodularia spumigena Nodularia cf. spumigena unclassified Nodularia environmental samples Richelia sinica unclassified Richelia environmental samples Nodularia spumigena oli üks esimesi sinivetikaliike, mille toksilistest mõjudest loomadele teadusmaailmas 1878. aastal kirjutati. Ligi sajand pärast toksiliste omaduste kirjeldamist suudeti eraldada ka sinivetikas toksilisust põhjustav tsükliline peptiidsidemetega molekul nodulariin. Botanical Bulletin of Academia Sinica, Vol. 41, 2000 specific activity was slightly lower in thalli grown at 1 然 NaH 2 PO 4 (Figure 3A).

Dec 4, 2010 on cell division and nitrogen fixation rates in the bloom-forming cyanobacterium Nodularia spumigena. Sinica Petrology, 22: 3039–3046.

i Nodularia spumigena na tempo pobierania pokarmu, mobilnoœæ i prze¿ywalnoœæ ba³t yckich lasonogów pospolitych Neomysis integer . Abstract: Nodularia spumigena is a toxic, ﬁlamentous cyanobacterium occurring in brackish waters worldwide, yet forms extensive recurrent blooms in the Baltic Sea. N. spumigena produces several classes of non-ribosomal peptides (NRPs) that are active against several key metabolic enzymes. Nodularia spumigena strains NSOR10 and NSGG-1 lost heterocysts when cultures were supplemented with ammonium and therefore DNA from filaments comprised solely of vegetative cells could be subjected to PCR. Cyanobakterien Nodularia spumigena bildar långa trådar med celler på rad.

Se hela listan på microbewiki.kenyon.edu

När cellerna dör läcker allt cellinnehåll ut i vattnet, inklusive giftet. – Giftet som N. spumigena tillverkar påverkar levern, så man måste dricka vattnet för att få i sig giftet, förklarar Maria Karlberg.

The production of aeruginosins by N. spumigena … Nodularia spumigena blommar och täcker stora delar av Östersjön. • ©SeaWiFS Project / NASA-GSFC / ORBIMAGE. Omslagsbild: Bada inte här. Blommande Nodularia spumigena. Fotograferad vid Stora Karlsö, juli 2003.
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hepatotoxic cyanobacterium Nodularia spumigena in the Baltic.

Genom att dra en planktonhåv genom vattnet samlas och koncentreras små växtplankton och cyanobakterier. Nodularia spumigena blommar och täcker stora delar av Östersjön.
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2007-02-16

Baltic Sea water amended with 0.3µmoll−1 PO 4 every week Abstract. The object of this work was to determine, using a full-factorial experiment, the influence of temperature, irradiance and salinity on growth and hepatotoxin production by Nodularia spumigena, isolated from Lake Alexandrina in the south-east of South Australia.Higher levels of biomass (determined as particulate organic carbon, POC), toxin production and intracellular toxin Nodularia spumigena is a bloom-forming, ﬁlamentous and N2-ﬁxing cyanobacterium from the Nostocales order. This species occurs in many brackish waters worldwide, but most extensive blooms are reported in estuaries, lagoons and inland waters of Australia and New Zealand [1–3], and the Nodularia spumigena potentially toxic species, forming heavy blooms and producing nodularin; occurrence - summer; filaments 8-12 µm wide, cells 3-4 times shorter than wide.

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2010-08-05

Though clearly important in lakes, the role of phosphorus has been largely ignored in the ocean.