title: Nitrate and phosphate affect cultivability of cyanobacteria from environments with low nutrient levels.
abstract: Nitrate and phosphate concentrations higher than those found in the natural environment slowed down growth of two strains of non-bloom-forming, phycoerythrin-rich Synechococcus spp. isolated from mesotrophic subalpine lakes. The results make clear why isolation of these picocyanobacteria in standard cultivation media was difficult. At low concentrations, closely related strains exhibited distinct growth characteristics with respect to these two nutrients, possibly explaining differences in their seasonal appearance in the natural environment.
authors.affiliation: Centre for Estuarine and Marine Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 4400 AC Yerseke, The Netherlandsa. ernst@nioo.knaw.nl
authors.forename: Anneliese
authors.initials: A
authors.lastname: Ernst
authors.forename: Manfred
authors.initials: M
authors.lastname: Deicher
authors.forename: Peter M J
authors.initials: PM
authors.lastname: Herman
authors.forename: Ute I A
authors.initials: UI
authors.lastname: Wollenzien
mesh_terms: D001431:Bacteriological Techniques; D003470:Culture Media; D005618:Fresh Water / Q000382:microbiology*; D009566:Nitrates / Q000378:metabolism / Q000494:pharmacology*; D010710:Phosphates / Q000378:metabolism / Q000494:pharmacology*; D010799:Phycoerythrin / Q000378:metabolism; D046940:Synechococcus / Q000187:drug effects / Q000254:growth & development* / Q000302:isolation & purification
chemical_list: D003470:Culture Media; D009566:Nitrates; D010710:Phosphates; D010799:Phycoerythrin