Autecology of Cylindrospermopsis raciborskii (Woloszynska) Seenayya et Subba Raju

Abstract

Aim Cylindrospermopsis raciborskii (Woloszynska) Seenayya and Subba Raju, also called Raphidiopsis raciborskii, is a diazotrophic and filamentous cyanobacterium with terminal heterocytes, belonging to the order Nostocales. It has been the focus of several studies due to its toxicity and wide geographic distribution. Methods To understand its autecology and to identify the key factors that control its dominance, the present review discusses, based on recent publications, whether the expansion of this species is a result of a high metabolic plasticity or the existence of distinct ecotypes. Results Among the factors influencing C. raciborskii growth are its ability to survive in wide temperature, light intensity and pH ranges; to dominate in both stratified and mixed environments; to tolerate oligohaline conditions; to produce and secrete allelopathic substances; suffer little herbivore pressure; and although associated with a eutrophic environment, to tolerate low concentration of phosphorus and nitrogen with a high affinity for ammonia. Conclusions Due to these differences in the environmental conditions of growth and development found in various studies, we suggest the existence of different ecotypes that will predominate under specific environmental conditions as the most appropriate hypothesis.

Population Dynamics of <i>Raphidiopsis raciborskii</i> and Cylindrospermopsin Concentration in Ea Nhai Reservoir in Dak Lak Province, Vietnam

“…Cyanobacterial proliferation is typically caused by multiple drivers occurring simultaneously instead of a single environmental factor. Field and laboratory investigations have found that R. raciborskii abundance may be affected by environmental factors such as light, temperature and nutrients [3,37]. In our study, the temperature was positively correlated with R. raciborskii biovolume.…”

Phytoplankton diversity and occurrence of Raphidiopsis raciborskii (Woloszynska) in the Jequiá Estuarine Lagoon System (Alagoas, Brazil)

“…Estudos moleculares comparativos com base em uma abordagem polifásica que inclui dados fenotípicos e filogenéticos demonstram a similaridade com a consequente uni-Enaide Marinho de Melo-Magalhães, Clyvia Roberta Gomes de Souza, Rochana Campos de Andrade Lima ficação dos gêneros Cylindrospermopsis e Rhaphidiopsis (Vico et al, 2020;Durval et al, 2018;Aguilera et al, 2018). Aceitando essa evidência taxonômica, a espécie Cylindrospermopsis raciboskii seria chamada de Raphidiopsis raciboskii pela prerrogativa temporal (Pagni;Falco & Santos, 2020).…”

Cyanobacterium Raphidiopsis raciborskii and its toxin in Buon Phong reservoir, Dak Lak province, Vietnam

“…R. raciborskii is a common bloom species in natural lakes, reservoirs and rivers from tropical, subtropical to temperate regions (Padisák et al, 1997;Burford et al, 2016Burford et al, , 2018Fu et al, 2019). Numerous studies have suggested that the abundance of R. raciborskii could be influenced by environmental factors such as light, temperature and nutrients (Antunes et al, 2015;Burforf et al, 2016;Pagni et al, 2020). The correlation between temperature and R. raciborskii in the Buon Phong reservoir showed that high temperature stimulated the growth of R. raciborskii.…”