Determining the potential for the proliferation of the harmful cyanobacterium Cylindrospermopsis raciborskii in Currituck Sound, North Carolina

Calandrino, Elizabeth S.; Paerl, Hans W.

doi:10.1016/j.hal.2011.04.003

Cited by 25 publications

(21 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum NaCl concentration that supported growth was 69 mM, but optimum growth rates preserving CO 2 fixation and nitrogenase activity were observed up to 34 mM. Based on environmental data, Calandrino & Pearl [28] subjected C. raciborskii to a high salinity condition (8.4 ppt) by adding NaCl and concluded that, although it was detrimental to growth and impaired biomass accumulation, the cells tolerated such a high salinity. Recently, with a Raphidiopsis brokii strain, a close phylogenetic relative of C. raciborskii , Soto-Liebe et al .…”

Section: Resultsmentioning

confidence: 99%

Growth and Saxitoxin Production by Cylindrospermopsis raciborskii (Cyanobacteria) Correlate with Water Hardness

2013

View full text Add to dashboard Cite

The cosmopolitan and increasing distribution of Cylindrospermopsis raciborskii can be attributed to its ecophysiological plasticity and tolerance to changing environmental factors in water bodies. In reservoirs in the semi-arid region of Brazil, the presence and common dominance of C. raciborskii have been described in waters that are considered hard. We investigated the response of a Brazilian C. raciborskii strain to water hardness by evaluating its growth and saxitoxin production. Based on environmental data, a concentration of 5 mM of different carbonate salts was tested. These conditions affected growth either positively (MgCO3) or negatively (CaCO3 and Na2CO3). As a control for the addition of cations, MgCl2, CaCl2 and NaCl were tested at 5 or 10 mM, and MgCl2 stimulated growth, NaCl slowed but sustained growth, and CaCl2 inhibited growth. Most of the tested treatments increased the saxitoxin (STX) cell quota after six days of exposure. After 12 days, STX production returned to concentrations similar to that of the control, indicating an adaptation to the altered water conditions. In the short term, cell exposure to most of the tested conditions favored STX production over neoSTX production. These results support the noted plasticity of C. raciborskii and highlight its potential to thrive in hard waters. Additionally, the observed relationship between saxitoxin production and water ion concentrations characteristic of the natural environments can be important for understanding toxin content variation in other harmful algae that produce STX.

show abstract

Section: Resultsmentioning

confidence: 99%

Growth and Saxitoxin Production by Cylindrospermopsis raciborskii (Cyanobacteria) Correlate with Water Hardness

2013

View full text Add to dashboard Cite

show abstract

“…This confers an adaptive advantage to the shade-tolerant phytoplancton (Schwaderer et al, 2011) as C. raciborskii (Briand et al, 2002). C. raciborskii is associated with low salinity conditions (Padisák, 1997) as such found in the Limoncocha lagoon, although it could also live with moderate salinity (Calandrino & Paerl, 2011).…”

Section: Raciborskii Potential Blooms In Limoncocha Lagoonmentioning

confidence: 99%

Characterization and spatio-temporal dynamics of Cylindrospermopsis raciborski in an Amazonian Lagoon, Ecuador.

Venegas¹,

Pons²,

Chamorro³

et al. 2018

Enfoque UTE

View full text Add to dashboard Cite

The cyanobacteria Cylindrospermopsis raciborskii, is a fresh water ubiquitous species from tropical to temperate weather. It is potentially capable of producing toxins. Thus it is necessary to monitor its presence in fresh waters associated to recreational use activities and human consumption. There are official reports and one thesis reporting the presence of C. raciborskii in Ecuador. Nevertheless, this country does not appear in the latest distribution maps of this species in the scientific literature. In this article, we report the presence of C. raciborskii in Ecuador, together with the characterization of the environmental conditions of one of the habitats where this species is present: the Limoncocha lagoon, province of Sucumbíos.

show abstract

“…A scum formation is a dynamic process that depends on a delicate balance between flotation, cellular ballast and water turbulence (Calandrino and Paerl, 2011). Filaments floating at the water surface gain advantage over sub-surface phytoplankton populations.…”

Section: The Invasion Processmentioning

confidence: 99%

Invasion of Nostocales (cyanobacteria) to Subtropical and Temperate Freshwater Lakes – Physiological, Regional, and Global Driving Forces

et al. 2012

View full text Add to dashboard Cite

Similar to the increased number of studies on invasive plants and animals in terrestrial and aquatic ecosystems, many reports were recently published on the invasion of Nostocales (cyanobacteria) to freshwater environments worldwide. Invasion and proliferation of Nostocales in new habitats have the potential to significantly alter the structure of the native community and to modify ecosystem functioning. But most importantly, they influence the water quality due to a variety of toxic compounds that some species produce. Therefore a special attention was given to the invasion and persistence of toxic cyanobacteria in many aquatic ecosystems. Here we summarize the currently published records on the invasion of two Nostocales genera, Cylindrospermopsis and Aphanizomenon, to lakes and water reservoirs in subtropical and temperate zones. These invading species possess traits thought to be common to many invasive organisms: high growth rate, high resource utilization efficiency and overall superior competitive abilities over native species when local conditions vary. Assuming that dispersion routes of cyanobacteria have not been changed much in recent decades, their recent establishment and proliferation in new habitats indicate changes in the environment under which they can exploit their physiological advantage over the native phytoplankton population. In many cases, global warming was identified as the major driving force for the invasion of Nostocales. Due to this uncontrollable trend, invasive Nostocales species are expected to maintain their presence in new habitats and further expand to new environments. In other cases, regional changes in nutrient loads and in biotic conditions were attributed to the invasion events.

show abstract

Determining the potential for the proliferation of the harmful cyanobacterium Cylindrospermopsis raciborskii in Currituck Sound, North Carolina

Cited by 25 publications

References 39 publications

Growth and Saxitoxin Production by Cylindrospermopsis raciborskii (Cyanobacteria) Correlate with Water Hardness

Growth and Saxitoxin Production by Cylindrospermopsis raciborskii (Cyanobacteria) Correlate with Water Hardness

Characterization and spatio-temporal dynamics of Cylindrospermopsis raciborski in an Amazonian Lagoon, Ecuador.

Invasion of Nostocales (cyanobacteria) to Subtropical and Temperate Freshwater Lakes – Physiological, Regional, and Global Driving Forces

Contact Info

Product

Resources

About