Considerations regarding the dominance of Cylindrospermopsis raciborskii under low light availability in a low phosphorus lake
AUTOR(ES)
Tonetta, Denise, Hennemann, Mariana Coutinho, Brentano, Débora Monteiro, Petrucio, Mauricio Mello
FONTE
Acta Bot. Bras.
DATA DE PUBLICAÇÃO
2015-09
RESUMO
ABSTRACTAlthough many studies have shown that the dispersion, increased abundance and dominance of cyanobacteria can be attributed to nutrient enrichment, we discuss features contributing to the dominance of Cylindrospermopsis raciborskii in a shallow, polymictic, subtropical coastal lake with low phosphorus and light limitation (Peri Lake). The presence and dominance of C. raciborskii in an environment with such characteristics emphasizes the idea that nutrients alone do not explain the high density of this cyanobacterium. Other features should be considered in explaining this species dominance, such as phosphorus storage and physiological flexibilitywhich seem to be key features to high densities in low phosphorus systems.
Documentos Relacionados
- The necessity of management in a lake of the Atlantic Forest biodiversity hotspot: nitrogen levels connected to a persistent bloom of Cylindrospermopsis raciborskii
- Morpho-physiological responses of a subtropical strain of Cylindrospermopsis raciborskii (Cyanobacteria) to different light intensities
- The inhibitory effect of calcium on Cylindrospermopsis raciborskii (cyanobacteria) metabolism
- Low-temperature-induced accumulation of xanthophylls and its structural consequences in the photosynthetic membranes of the cyanobacterium Cylindrospermopsis raciborskii: An FTIR spectroscopic study
- Molecular Characterization of the Toxic Cyanobacterium Cylindrospermopsis raciborskii and Design of a Species-Specific PCR