This page has only limited features, please log in for full access.
Macroalgae can directly restrict the growth of various phytoplankton species by releasing allelopathic compounds; therefore, considerable attention should be paid to the allelopathic potential of these organisms against harmful and bloom-forming cyanobacteria. The main aim of this study was to demonstrate for the first time the allelopathic activity of Ulva intestinalis on the growth, the fluorescence parameters: the maximum PSII quantum efficiency (Fv/Fm) and the effective quantum yield of PSII photochemistry (ΦPSII), the chlorophyll a (Chl a) and carotenoid (Car) content, and the microcystin-LR (MC-LR) and phenol content of three bloom-forming cyanobacteria, Aphanizomenon sp., Nodularia spumigena, and Nostoc sp. We found both negative and positive allelopathic effects of U. intestinalis on tested cyanobacteria. The study clearly showed that the addition of the filtrate of U. intestinalis significantly inhibited growth, decreased pigment content and Fv/Fm and ΦPSII values of N. spumigena and Nostoc sp., and stimulated Aphanizomenon sp. The addition of different concentrations of aqueous extract also stimulated the cyanobacterial growth. It was also shown that the addition of extract obtained from U. intestinalis caused a significant decrease in the MC-LR content in Nostoc sp. cells. Moreover, it the phenol content in N. spumigena cells was increased. On the other hand, the cell-specific phenol content for Aphanizomenon sp. decreased due to the addition of the filtrate. In this work, we demonstrated that the allelopathic effect of U. intestinalis depends on the target species’ identity as well as the type of allelopathic method used. The study of the allelopathic Baltic macroalgae may help to identify their possible role as a significant biological factor influencing harmful cyanobacterial blooms in brackish ecosystems.
Gracjana Budzałek; Sylwia Śliwińska-Wilczewska; Marek Klin; Kinga Wiśniewska; Adam Latała; Józef Maria Wiktor. Changes in Growth, Photosynthesis Performance, Pigments, and Toxin Contents of Bloom-Forming Cyanobacteria after Exposure to Macroalgal Allelochemicals. Toxins 2021, 13, 589 .
AMA StyleGracjana Budzałek, Sylwia Śliwińska-Wilczewska, Marek Klin, Kinga Wiśniewska, Adam Latała, Józef Maria Wiktor. Changes in Growth, Photosynthesis Performance, Pigments, and Toxin Contents of Bloom-Forming Cyanobacteria after Exposure to Macroalgal Allelochemicals. Toxins. 2021; 13 (8):589.
Chicago/Turabian StyleGracjana Budzałek; Sylwia Śliwińska-Wilczewska; Marek Klin; Kinga Wiśniewska; Adam Latała; Józef Maria Wiktor. 2021. "Changes in Growth, Photosynthesis Performance, Pigments, and Toxin Contents of Bloom-Forming Cyanobacteria after Exposure to Macroalgal Allelochemicals." Toxins 13, no. 8: 589.
Macroalgae are the source of many harmful allelopathic compounds, which are synthesized as a defense strategy against competitors and herbivores. Therefore, it can be predicted that certain species reduce aquaculture performance. Herein, the allelopathic ability of 123 different taxa of green, red, and brown algae have been summarized based on literature reports. Research on macroalgae and their allelopathic effects on other animal organisms was conducted primarily in Australia, Mexico, and the United States. Nevertheless, there are also several scientific reports in this field from South America and Asia; the study areas in the latter continents coincide with areas where aquaculture is highly developed and widely practiced. Therefore, the allelopathic activity of macroalgae on coexisting animals is an issue that is worth careful investigation. In this work, we characterize the distribution of allelopathic macroalgae and compare them with aquaculture locations, describe the methods for the study of macroalgal allelopathy, present the taxonomic position of allelopathic macroalgae and their impact on coexisting aquatic competitors (Cnidaria) and herbivores (Annelida, Echinodermata, Arthropoda, Mollusca, and Chordata), and compile information on allelopathic compounds produced by different macroalgae species. This work gathers the current knowledge on the phenomenon of macroalgal allelopathy and their allelochemicals affecting aquatic animal (competitors and predators) worldwide and it provides future research directions for this topic.
Gracjana Budzałek; Sylwia Śliwińska-Wilczewska; Kinga Wiśniewska; Agnieszka Wochna; Iwona Bubak; Adam Latała; Józef Wiktor. Macroalgal Defense against Competitors and Herbivores. International Journal of Molecular Sciences 2021, 22, 7865 .
AMA StyleGracjana Budzałek, Sylwia Śliwińska-Wilczewska, Kinga Wiśniewska, Agnieszka Wochna, Iwona Bubak, Adam Latała, Józef Wiktor. Macroalgal Defense against Competitors and Herbivores. International Journal of Molecular Sciences. 2021; 22 (15):7865.
Chicago/Turabian StyleGracjana Budzałek; Sylwia Śliwińska-Wilczewska; Kinga Wiśniewska; Agnieszka Wochna; Iwona Bubak; Adam Latała; Józef Wiktor. 2021. "Macroalgal Defense against Competitors and Herbivores." International Journal of Molecular Sciences 22, no. 15: 7865.
Allelopathy is widespread in marine, brackish, and freshwater habitats. Literature data indicate that allelopathy could offer a competitive advantage for some phytoplankton species by reducing the growth of competitors. It is also believed that allelopathy may affect species succession. Thus, allelopathy may play a role in the development of blooms. Over the past few decades, the world's coastal waters have experienced increases in the numbers of cyanobacterial and microalgal blooming events. Understanding how allelopathy is implicated with other biological and environmental factors as a bloom-development mechanism is an important topic for future research. This review focuses on a taxonomic overview of allelopathic cyanobacteria and microalgae, the biological and environmental factors that affect allelochemical production, their role in ecological dynamics, and their physiological modes of action, as well as potential industrial applications of allelopathic compounds.
Sylwia Śliwińska-Wilczewska; Kinga Wiśniewska; Zofia Konarzewska; Agata Cieszyńska; Aldo Barreiro Felpeto; Anita U. Lewandowska; Adam Latała. The current state of knowledge on taxonomy, modulating factors, ecological roles, and mode of action of phytoplankton allelochemicals. Science of The Total Environment 2021, 773, 145681 .
AMA StyleSylwia Śliwińska-Wilczewska, Kinga Wiśniewska, Zofia Konarzewska, Agata Cieszyńska, Aldo Barreiro Felpeto, Anita U. Lewandowska, Adam Latała. The current state of knowledge on taxonomy, modulating factors, ecological roles, and mode of action of phytoplankton allelochemicals. Science of The Total Environment. 2021; 773 ():145681.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska; Kinga Wiśniewska; Zofia Konarzewska; Agata Cieszyńska; Aldo Barreiro Felpeto; Anita U. Lewandowska; Adam Latała. 2021. "The current state of knowledge on taxonomy, modulating factors, ecological roles, and mode of action of phytoplankton allelochemicals." Science of The Total Environment 773, no. : 145681.
Cyanobacteria and microalgae present in the aquatic or terrestrial environment may be emitted into the air and transported along with air masses over long distances. As a result of staying in the atmosphere, these organisms may develop a greater tolerance to stressful factors, but this topic is still relatively unknown. The main aim was to show an autecological characteristic of some airborne microalgae and cyanobacteria strains by a factorial laboratory experiment approach, including changes in irradiance, temperature, and salinity conditions. The additional purpose of this work was also to present part of the Culture Collection of Baltic Algae (CCBA) collection, which consists of airborne algae (AA) isolated from the atmospheric air of the southern Baltic Sea region. Altogether, 61 strains of airborne cyanobacteria and microalgae from the southern Baltic Sea region were isolated from May 2018 to August 2020. Selected microorganisms were tested in controlled laboratory conditions to identify their response to different irradiance (10–190 µmol photons m−2 s−1), temperature (13–23 °C), and salinity conditions (0–36 PSU). The highest numbers of cells (above 30 × 105 cell mL−1) were recorded for cyanobacterium Nostoc sp., and for diatoms Nitzschia sp., Amphora sp., and Halamphora sp. We found that for cyanobacterium Nostoc sp. as well as for green alga Coccomyxa sp. the maximum cell concentrations were recorded at the salinity of 0 PSU. Moreover, cyanobacteria Planktolyngbya contorta, Pseudanabaena catenata, Leptolyngbya foveolarum, Gloeocapsa sp., and Rivularia sp. were able to grow only at a salinity of 0 PSU. On the other hand, in the range of 16–24 PSU, the highest cell numbers of examined diatoms have been identified. Our research provided that deposited airborne microalgae and cyanobacteria showed full colonization potential. The present experiment suggests that the adaptive abilities of microorganisms, in particular those producing toxins, may contribute to the spread in the future. Thus, it may increase human exposure to their negative health effects. Any distinctive adaptations of the genera give them an additional competitive advantage and a greater chance for territorial expansion.
Kinga Wiśniewska; Sylwia Śliwińska-Wilczewska; Anita Lewandowska; Marta Konik. The Effect of Abiotic Factors on Abundance and Photosynthetic Performance of Airborne Cyanobacteria and Microalgae Isolated from the Southern Baltic Sea Region. Cells 2021, 10, 103 .
AMA StyleKinga Wiśniewska, Sylwia Śliwińska-Wilczewska, Anita Lewandowska, Marta Konik. The Effect of Abiotic Factors on Abundance and Photosynthetic Performance of Airborne Cyanobacteria and Microalgae Isolated from the Southern Baltic Sea Region. Cells. 2021; 10 (1):103.
Chicago/Turabian StyleKinga Wiśniewska; Sylwia Śliwińska-Wilczewska; Anita Lewandowska; Marta Konik. 2021. "The Effect of Abiotic Factors on Abundance and Photosynthetic Performance of Airborne Cyanobacteria and Microalgae Isolated from the Southern Baltic Sea Region." Cells 10, no. 1: 103.
Morze Bałtyckie jest wyjątkowym ekosystemem wodnym, charakteryzującym się wyraźnymi zmianami w środowisku, szczególnie w odniesieniu do zasolenia i klimatu. Jest to także miejsce występowania morskich i słodkowodnych organizmów roślinnych, które od stuleci fascynują naukowców. Niewiele jest jednak prac prezentujących bałtyckie glony makroskopowe, jako potencjalne źródło dla zastosowań komercyjnych. Celem niniejszego opracowania było przedstawienie bałtyckich makroglonów, jako źródła zasobów przemysłowych. W przeglądzie uwzględniono, m.in. potencjał wykorzystania tych organizmów w przemyśle kosmetycznym i medycznym, w tym najważniejsze składniki, które czynią je cennym produktem spożywczym. Zwrócono także uwagę na ich rosnącą popularność i potencjalne wykorzystanie w przyszłości, np. jako biopaliwa, nawozy naturalne lub składniki oczyszczalni ścieków. Przedstawiono także możliwość wykorzystania makroglonów jako biologicznego czynnika, ograniczającego występowanie masowych zakwitów sinic w Morzu Bałtyckim.
Sylwia Śliwińska-Wilczewska; Gracjana Budzałek; Zuzanna Kowalska; Marek Klin; Adam Latała. Baltic macroalgae as a potential source for commercial applications – review. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae 2020, 220 -237.
AMA StyleSylwia Śliwińska-Wilczewska, Gracjana Budzałek, Zuzanna Kowalska, Marek Klin, Adam Latała. Baltic macroalgae as a potential source for commercial applications – review. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae. 2020; ():220-237.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska; Gracjana Budzałek; Zuzanna Kowalska; Marek Klin; Adam Latała. 2020. "Baltic macroalgae as a potential source for commercial applications – review." Annales Universitatis Paedagogicae Cracoviensis Studia Naturae , no. : 220-237.
The presence of airborne cyanobacteria and microalgae as well as their negative impacts on human health have been documented by many researchers worldwide. However, studies on cyanobacteria and microalgae are few compared with those on bacteria and viruses. Research is especially lacking on the presence and taxonomic composition of cyanobacteria and microalgae near economically important water bodies with much tourism, such as the Adriatic Sea region. Here, we present the first characterization of the airborne cyanobacteria and microalgae in this area. Sampling conducted between 11th and 15th June 2017 revealed a total of 15 taxa of airborne cyanobacteria and microalgae. Inhalation of many of the detected taxa, including Synechocystis sp., Synechococcus sp., Bracteacoccus sp., Chlorella sp., Chlorococcum sp., Stichococcus sp., and Amphora sp., poses potential threats to human health. Aside from two green algae, all identified organisms were capable of producing harmful metabolites, including toxins. Moreover, we documented the presence of the cyanobacterium Snowella sp. and the green alga Tetrastrum sp., taxa that had not been previously documented in the atmosphere by other researchers. Our study shows that the Adriatic Sea region seems to be a productive location for future research on airborne cyanobacteria and microalgae in the context of their impacts on human health, especially during the peak of tourism activity.
Kinga A. Wiśniewska; Sylwia Śliwińska-Wilczewska; Anita U. Lewandowska. The first characterization of airborne cyanobacteria and microalgae in the Adriatic Sea region. PLOS ONE 2020, 15, e0238808 .
AMA StyleKinga A. Wiśniewska, Sylwia Śliwińska-Wilczewska, Anita U. Lewandowska. The first characterization of airborne cyanobacteria and microalgae in the Adriatic Sea region. PLOS ONE. 2020; 15 (9):e0238808.
Chicago/Turabian StyleKinga A. Wiśniewska; Sylwia Śliwińska-Wilczewska; Anita U. Lewandowska. 2020. "The first characterization of airborne cyanobacteria and microalgae in the Adriatic Sea region." PLOS ONE 15, no. 9: e0238808.
It is estimated that the genus Synechococcus is responsible for about 17% of net primary production in the Global Ocean. Blooms of these organisms are observed in tropical, subtropical and even temperate zones, and they have been recorded recently even beyond the polar circle. The long-term scenarios forecast a growing expansion of Synechococcus sp. and its area of dominance. This is, among others, due to their high physiological plasticity in relation to changing environmental conditions. Three phenotypes of the genus Synechococcus sp. (Type 1, Type 2, and Type 3a) were tested in controlled laboratory conditions in order to identify their response to various irradiance (10, 55, 100 and 145 µmol photons m−2 s−1) and temperature (15, 22.5 and 30 °C) conditions. The highest total pigment content per cell was recorded at 10 μmol photons m−2 s−1 at all temperature variants with the clear dominance of phycobilins among all the pigments. In almost every variant the highest growth rate was recorded for the Type 1. The lowest growth rates were observed, in general, for the Type 3a. However, it was recognized to be less temperature sensitive in comparison to the other two types and rather light-driven with the highest plasticity and adaptation potential. The highest amounts of carotenoids were produced by Type 2 which also showed signs of the cell stress even around 55 μmol photons m−2 s−1 at 15 °C and 22.5 °C. This may imply that the Type 2 is the most susceptible to higher irradiances. Picocyanobacteria Synechococcus sp. require less light intensity to achieve the maximum rate of photosynthesis than larger algae. They also tolerate a wide range of temperatures which combined together make them gain a powerful competitive advantage. Our results will provide key information for the ecohydrodynamical model development. Thus, this work would be an important link in forecasting future changes in the occurrence of these organisms in the context of global warming.
Sylwia Śliwińska-Wilczewska; Zofia Konarzewska; Kinga Wiśniewska; Marta Konik. Photosynthetic Pigments Changes of Three Phenotypes of Picocyanobacteria Synechococcus sp. under Different Light and Temperature Conditions. Cells 2020, 9, 2030 .
AMA StyleSylwia Śliwińska-Wilczewska, Zofia Konarzewska, Kinga Wiśniewska, Marta Konik. Photosynthetic Pigments Changes of Three Phenotypes of Picocyanobacteria Synechococcus sp. under Different Light and Temperature Conditions. Cells. 2020; 9 (9):2030.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska; Zofia Konarzewska; Kinga Wiśniewska; Marta Konik. 2020. "Photosynthetic Pigments Changes of Three Phenotypes of Picocyanobacteria Synechococcus sp. under Different Light and Temperature Conditions." Cells 9, no. 9: 2030.
The contribution of picocyanobacteria to summer phytoplankton blooms, accompanied by an ecological crisis, is a new phenomenon in Europe. This issue requires careful investigation. We studied allelopathic activity of freshwater picocyanobacterium Synechococcus sp. on phytoplankton assemblages from three freshwater lakes. In this study, the allelopathic activity of the Synechococcus sp. on the total abundance, biomass, as well as structure of the phytoplankton assemblages were investigated. Our results indicated that addition of exudates obtained from Synechococcus sp. affected the number of cells and biomass of the phytoplankton communities; the degree of inhibition or stimulation was different for each species, causing a change in the phytoplankton abundance and dominance during the experiment. We observed that some group of organisms (especially cyanobacteria from the genus Aphanothece, Limnothrix, Microcystis, and Synechococcus) showed tolerance for allelopathic compounds produced and released by Synechococcus sp. It is also worth noting that in some samples, Bacillariophyceae (e.g., Amphora pediculus, Navicula pygmaea, and Nitzschia paleacea) were completely eliminated in the experimental treatments, while present in the controls. This work demonstrated that the allelopathic activity exhibited by the Synechococcus sp. is probably one of the major competitive strategies affecting some of the coexisting phytoplankton species in freshwater ecosystems. To our best knowledge this is the first report of the allelopathic activity of Synechococcus sp. in the freshwater reservoirs, and one of the few published works showing allelopathic properties of freshwater picocyanobacteria on coexisting phytoplankton species.
Iwona Bubak; Sylwia Śliwińska-Wilczewska; Paulina Głowacka; Agnieszka Szczerba; Katarzyna Możdżeń. The Importance of Allelopathic Picocyanobacterium Synechococcus sp. on the Abundance, Biomass Formation, and Structure of Phytoplankton Assemblages in Three Freshwater Lakes. Toxins 2020, 12, 259 .
AMA StyleIwona Bubak, Sylwia Śliwińska-Wilczewska, Paulina Głowacka, Agnieszka Szczerba, Katarzyna Możdżeń. The Importance of Allelopathic Picocyanobacterium Synechococcus sp. on the Abundance, Biomass Formation, and Structure of Phytoplankton Assemblages in Three Freshwater Lakes. Toxins. 2020; 12 (4):259.
Chicago/Turabian StyleIwona Bubak; Sylwia Śliwińska-Wilczewska; Paulina Głowacka; Agnieszka Szczerba; Katarzyna Możdżeń. 2020. "The Importance of Allelopathic Picocyanobacterium Synechococcus sp. on the Abundance, Biomass Formation, and Structure of Phytoplankton Assemblages in Three Freshwater Lakes." Toxins 12, no. 4: 259.
Organisms belonging to Synechococcus sp. genera are observed in all freshwater, brackish, and marine waters of the world. They play a relevant role in these ecosystems, since they are one of the main primary producers, especially in open ocean. Eventually, they form mass blooms in coastal areas, which are potentially dangerous for the functioning of marine ecosystems. Allelopathy could be an important factor promoting the proliferation of these organisms. According to the authors’ best knowledge, there is no information on the allelopathic activity and allelopathic compounds exhibited by different Synechococcus sp. phenotypes. Therefore, the research conducted here aimed to study the bioactivity of compounds produced by three phenotypes of Synechococcus sp. by studying their influence on the growth, chlorophyll fluorescence, and photosynthetic pigments of eighteen cyanobacteria and microalgae species. We demonstrated that three different Synechococcus sp. phenotypes, including a phycocyanin (PC)-rich strain (Type 1; green strain) and phycoerythrin (PE)-rich strains containing phycoerythrobilin (PEB) and phycocyanobilin (PCB) (Type 2; red strain and Type 3a; brown strain), had a significant allelopathic effect on the selected species of cyanobacteria, diatoms, and green algae. For all green algae, a decrease in cell abundance under the influence of phenotypes of donor cyanobacteria was shown, whereas, among some target cyanobacteria and diatom species, the cell-free filtrate was observed to have a stimulatory effect. Our estimates of the stress on photosystem II (Fv/Fm) showed a similar pattern, although for some diatoms, there was an effect of stress on photosynthesis, while a stimulatory effect on growth was also displayed. The pigment content was affected by allelopathy in most cases, particularly for chlorophyll a, whilst it was a bit less significant for carotenoids. Our results showed that Synechococcus sp. Type 3a had the strongest effect on target species, while Synechococcus sp. Type 1 had the weakest allelopathic effect. Furthermore, GC-MS analysis produced different biochemical profiles for the Synechococcus strains. For every phenotype, the most abundant compound was different, with oxime-, methoxy-phenyl- being the most abundant substance for Synechococcus Type 1, eicosane for Synechococcus Type 2, and silanediol for Synechococcus Type 3a.
Zofia Konarzewska; Sylwia Śliwińska-Wilczewska; Aldo Barreiro Felpeto; Vitor Vasconcelos; Adam Latała. Assessment of the Allelochemical Activity and Biochemical Profile of Different Phenotypes of Picocyanobacteria from the Genus Synechococcus. Marine Drugs 2020, 18, 179 .
AMA StyleZofia Konarzewska, Sylwia Śliwińska-Wilczewska, Aldo Barreiro Felpeto, Vitor Vasconcelos, Adam Latała. Assessment of the Allelochemical Activity and Biochemical Profile of Different Phenotypes of Picocyanobacteria from the Genus Synechococcus. Marine Drugs. 2020; 18 (4):179.
Chicago/Turabian StyleZofia Konarzewska; Sylwia Śliwińska-Wilczewska; Aldo Barreiro Felpeto; Vitor Vasconcelos; Adam Latała. 2020. "Assessment of the Allelochemical Activity and Biochemical Profile of Different Phenotypes of Picocyanobacteria from the Genus Synechococcus." Marine Drugs 18, no. 4: 179.
Związki bioaktywne sinic wykazują różnorodne właściwości, które potencjalnie mogą być wykorzystane w wielu sektorach przemysłu. W artykule tym szczególny nacisk położono na wykorzystanie sinic i ich cyjanometabolitów, zarówno w przemyśle farmaceutycznym, jak i medycznym. Scharakteryzowano związki wyizolowane ze szczepów sinic, które można stosować do wytwarzania leków o działaniu przeciwwirusowym, przeciwgrzybiczym, przeciwnowotworowym, przeciwdrobnoustrojowym oraz przeciwbakteryjnym. Pokazano również pozytywne aspekty hodowli sinic i możliwości ich komercyjnego wykorzystania.
Sylwia Śliwińska-Wilczewska. Cyanobacteria and cyanometabolites used in the pharmaceutical and medical industry. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae 2019, 180 -190.
AMA StyleSylwia Śliwińska-Wilczewska. Cyanobacteria and cyanometabolites used in the pharmaceutical and medical industry. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae. 2019; ():180-190.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska. 2019. "Cyanobacteria and cyanometabolites used in the pharmaceutical and medical industry." Annales Universitatis Paedagogicae Cracoviensis Studia Naturae , no. : 180-190.
Only a few studies have documented the physiological effects of allelopathy from cyanobacteria against coexisting microalgae. We investigated the allelopathic ability of the bloom-forming cyanobacteria Synechococcus sp. and Nodularia spumigena filtrates on several aspects related to the physiology of the target species: population growth, cell morphology, and several indexes of photosynthesis rate and respiration. The target species were the following: two species of green algae (Oocystis submarina, Chlorella vulgaris) and two species of diatoms (Bacillaria paxillifer, Skeletonema marinoi). These four species coexist in the natural environment with the employed strains of Synechococcus sp. and N. spumigena employed. The tests were performed with single and repeated addition of cyanobacterial cell-free filtrate. We also tested the importance of the growth phase in the strength of the allelopathic effect. The negative effects of both cyanobacteria were the strongest with repeated exudates addition, and generally, Synechococcus sp. and N. spumigena were allelopathic only in the exponential growth phase. O. submarina was not negatively affected by Synechococcus filtrates in any of the parameters studied, while C. vulgaris, B. paxillifer, and S. marinoi were affected in several ways. N. spumigena was characterized by a stronger allelopathic activity than Synechococcus sp., showing a negative effect on all target species. The highest decline in growth, as well as the most apparent cell physical damage, was observed for the diatom S. marinoi. Our findings suggest that cyanobacterial allelochemicals are associated with the cell physical damage, as well as a reduced performance in respiration and photosynthesis system in the studied microalgae which cause the inhibition of the population growth. Moreover, our study has shown that some biotic factors that increase the intensity of allelopathic effects may also alter the ratio between bloom-forming cyanobacteria and some phytoplankton species that occur in the same aquatic ecosystem.
Sylwia Śliwińska-Wilczewska; Aldo Barreiro Felpeto; Katarzyna Możdżeń; Vitor Vasconcelos; Adam Latała. Physiological Effects on Coexisting Microalgae of the Allelochemicals Produced by the Bloom-Forming Cyanobacteria Synechococcus sp. and Nodularia Spumigena. Toxins 2019, 11, 712 .
AMA StyleSylwia Śliwińska-Wilczewska, Aldo Barreiro Felpeto, Katarzyna Możdżeń, Vitor Vasconcelos, Adam Latała. Physiological Effects on Coexisting Microalgae of the Allelochemicals Produced by the Bloom-Forming Cyanobacteria Synechococcus sp. and Nodularia Spumigena. Toxins. 2019; 11 (12):712.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska; Aldo Barreiro Felpeto; Katarzyna Możdżeń; Vitor Vasconcelos; Adam Latała. 2019. "Physiological Effects on Coexisting Microalgae of the Allelochemicals Produced by the Bloom-Forming Cyanobacteria Synechococcus sp. and Nodularia Spumigena." Toxins 11, no. 12: 712.
Airborne microalgae and cyanobacteria are among the least studied organisms in aerobiology. While those of them living in freshwater and seawater are well recognized, those constituting the components of aerosols are rarely the focus of research. However, their presence has been noted by scientists from all over the world. The presence of these organisms is not indifferent to the environment as they participate in the formation of clouds and influence both the hydrological cycle and Earth's climate. Recent studies have concentrated mostly on the negative impact of airborne cyanobacteria and microalgae, as well as the toxic compounds they produce, on human health. This review focuses on measurement results published on those bioaerosols, combining the achievements of scientists from the last century with the latest reports and trends. Within it gaps in current knowledge are discussed, including the role of airborne organisms in the transport of harmful chemicals like PAHs and heavy metals. The current studies on which it is based emphasize the advantages and disadvantages of the measurement methods used in sampling and analysing. It also visualizes, in the form of maps, where research on bioaerosols has so far been conducted, while at the same time determining the share of organisms potentially dangerous to human health. In addition, we have also tried to recommend future research directions for both environmental and laboratory-based studies.
K. Wiśniewska; A.U. Lewandowska; Sylwia Śliwińska-Wilczewska. The importance of cyanobacteria and microalgae present in aerosols to human health and the environment – Review study. Environment International 2019, 131, 104964 .
AMA StyleK. Wiśniewska, A.U. Lewandowska, Sylwia Śliwińska-Wilczewska. The importance of cyanobacteria and microalgae present in aerosols to human health and the environment – Review study. Environment International. 2019; 131 ():104964.
Chicago/Turabian StyleK. Wiśniewska; A.U. Lewandowska; Sylwia Śliwińska-Wilczewska. 2019. "The importance of cyanobacteria and microalgae present in aerosols to human health and the environment – Review study." Environment International 131, no. : 104964.
Picocyanobacteria represent the main fraction of ocean primary production and, due to the effects of ocean acidification and an increase in seawater temperature, this group is expected to be favored in future scenarios. For this reason, we studied the ecophysiological response of picocyanobacteria to increases in water temperature by testing the allelopathic activity of a subpolar strain of Synechocystis sp., grown at a temperature range of 10–20°C, against coexisting microalgae. We showed that cell-free filtrates of Synechocystis sp. inhibited growth and the maximum quantum yields of PSII (Fv/Fm) of Porphyridium purpureum, Fistulifera sp., and Chlorella vulgaris, and the negative effect of the picocyanobacterium was stronger at the highest temperatures at which Synechocystis sp. was grown. Similarly, in P. purpureum, the effect of filtrates reduced chlorophyll a (Chl a) and carotenoids (Car) content, and the effect depended on the temperature at which the picocyanobacterium was grown. The lipid content was observed to increase in all species, and the allelopathic effect was the strongest at the highest temperature in which Synechocystis sp. was grown. The results of the present study predict a stronger allelopathic effect of picocyanobacteria against competitors with rising temperatures. They also suggest that the potential effect of climate change would benefit this group in future phytoplankton communities.
Aldo Barreiro Felpeto; Sylwia Śliwińska-Wilczewska; Marek Klin; Zofia Konarzewska; Vitor Vasconcelos. Temperature-dependent impacts of allelopathy on growth, pigment, and lipid content between a subpolar strain of Synechocystis sp. CCBA MA-01 and coexisting microalgae. Hydrobiologia 2019, 835, 117 -128.
AMA StyleAldo Barreiro Felpeto, Sylwia Śliwińska-Wilczewska, Marek Klin, Zofia Konarzewska, Vitor Vasconcelos. Temperature-dependent impacts of allelopathy on growth, pigment, and lipid content between a subpolar strain of Synechocystis sp. CCBA MA-01 and coexisting microalgae. Hydrobiologia. 2019; 835 (1):117-128.
Chicago/Turabian StyleAldo Barreiro Felpeto; Sylwia Śliwińska-Wilczewska; Marek Klin; Zofia Konarzewska; Vitor Vasconcelos. 2019. "Temperature-dependent impacts of allelopathy on growth, pigment, and lipid content between a subpolar strain of Synechocystis sp. CCBA MA-01 and coexisting microalgae." Hydrobiologia 835, no. 1: 117-128.
Environmental changes, including hydrological modifications caused by global warming, are one of the major drivers of harmful cyanobacterial bloom expansion. The ecophysiological study of bloom-forming filamentous cyanobacteria Nodularia spumingena, Aphanizomenon sp. and Dolichospermum lemmermannii was conducted in a series of laboratory tests. Cyanobacterial cultures were grown at various combinations of environmental conditions (scenarios). These scenarios were combinations of irradiance in the sense of Photosynthetically Active Radiation (PAR) spectrum (10, 100, 190 and 280 μmol photons m−2s−1), temperature (15, 20 and 25 °C) and salinity (3, 8 and 13). The cell concentration, pigment content and photosynthetic performance of cyanobacteria were measured to analyze the environmental stress. Generally, a positive effect of high irradiance and temperature on the abundance of these organisms as well as a preference to low salinity were observed. Pigment concentration (chlorophyll a (Chl a), carotenoids (Car) and Car/Chl a ratio), Chl a fluorescence and photosynthetic irradiance response (P-E) curves were used to characterize photoacclimation capacity of the cyanobacterial strains. The highest Car/Chl a ratio was observed at a high irradiance (190–280 μmol photons m−2s−1) and the lowest at 10 μmol photons m−2s−1 and 25 °C. Chl a fluorescence of cyanobacterial strains indicated that the highest irradiance (280 μmol photons m−2s−1) and the highest temperature (25 °C) had a negative effect on both the maximum quantum yield (Fv/Fm) and the effective quantum yield of photosystem II (PSII) photochemistry (ΦPSII). This effect was more pronounced in the case of ΦPSII than Fv/Fm. Based on photosynthesis irradiance response (P-E) curves, two mechanisms of photoacclimation were recognized. The maximum value of the photosynthetic capacity (Pm) expressed per unit biomass for cells grown at 10 μmol photons m−2s−1 indicated a change in the number of Photosynthetic Units (PSU). The constant values of the initial slope of the P-E curve (α) and the maximum value of Pm expressed per Chl a unit at 280 μmol photons m−2s−1 indicated another mechanism, a change in PSU size. The study showed a wide range of filamentous cyanobacteria responses to the changing environment. This may explain the successful growth of freshwater and brackish filamentous cyanobacteria in the Baltic Sea and suggests further expansion with progressing climate change.
Sylwia Śliwińska-Wilczewska; Agata Cieszyńska; Marta Konik; Jakub Maculewicz; Adam Latała. Environmental drivers of bloom-forming cyanobacteria in the Baltic Sea: Effects of salinity, temperature, and irradiance. Estuarine, Coastal and Shelf Science 2019, 219, 139 -150.
AMA StyleSylwia Śliwińska-Wilczewska, Agata Cieszyńska, Marta Konik, Jakub Maculewicz, Adam Latała. Environmental drivers of bloom-forming cyanobacteria in the Baltic Sea: Effects of salinity, temperature, and irradiance. Estuarine, Coastal and Shelf Science. 2019; 219 ():139-150.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska; Agata Cieszyńska; Marta Konik; Jakub Maculewicz; Adam Latała. 2019. "Environmental drivers of bloom-forming cyanobacteria in the Baltic Sea: Effects of salinity, temperature, and irradiance." Estuarine, Coastal and Shelf Science 219, no. : 139-150.
Allelopathy is a prevalent natural phenomenon in aquatic ecosystem. We reported the effects of the green macroalga Ulva intestinalis L. collected from estuaries of the Baltic Sea (Poland) on the growth and chlorophyll fluorescence of common filamentous cyanobacterium Nostoc sp. It was found that the addition of 50 µL mL–1 extracts obtained from U. intestinalis inhibited growth of cyanobacterium and after one week of exposition the reduction was 35% of initial amount of Nostoc sp. In addition, we demonstrated that on the seventh day of the exposition, the values of Fv/Fm of target cyanobacterium after addition of 100 µL mL–1 extracts obtained from U. intestinalis was reduced to 49%, compared to control treatment. These results showed for the first time the allelopathic activity of U. intestinalis on Baltic filamentous cyanobacteria Nostoc sp.
Gracjana Budzałek; Sylwia Śliwińska-Wilczewska; Adam Latała. Allelopathic effect of Ulva intestinalis L. on the Baltic filamentous cyanobacterium Nostoc sp. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae 2018, 1 .
AMA StyleGracjana Budzałek, Sylwia Śliwińska-Wilczewska, Adam Latała. Allelopathic effect of Ulva intestinalis L. on the Baltic filamentous cyanobacterium Nostoc sp. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae. 2018; ():1.
Chicago/Turabian StyleGracjana Budzałek; Sylwia Śliwińska-Wilczewska; Adam Latała. 2018. "Allelopathic effect of Ulva intestinalis L. on the Baltic filamentous cyanobacterium Nostoc sp." Annales Universitatis Paedagogicae Cracoviensis Studia Naturae , no. : 1.
The role of macroalgal allelopathy in aquatic systems has received increasing attention as a potential means of controlling cyanobacterial blooms. However, the allelopathic activity of Chara sp. on coexisting and bloom-forming picocyanobacteria is still largely unknown. Therefore, the laboratory experiments were conducted to investigate the allelopathic activity of extracts of Chara aspera, C. baltica, and C. canescens on the growth, the fluorescence parameters: maximum and effective quantum yield of photosystem II (PSII) photochemistry (Fv/Fm and ΦPSII, respectively) and photosynthesis parameters such as the initial slope of photosynthesis-irradiance (P-E) curves (alpha) and photosynthetic capacity (Pm) of the picocyanobacterium Synechococcus sp. Batch cultures of picocyanobacterium were exposed to three concentrations of extracts originating from three charophyte cultures and the effect was followed at three sampling times. Dried specimens of C. aspera, C. baltica, and C. canescens were extracted in the water-based matrix and the initial Synechococcus sp. inoculum, derived from unialgal culture media, was used. We found both negative and positive allelopathic effects of all tested Chara extracts on Synechococcus sp. The strongest adverse impact of picocyanobacterium growth was caused by C. baltica. This study clearly demonstrated that the allelopathic effect depends on the Chara species identity. Our results also suggested that some allelopathic Chara sp. have the potential to mitigate harmful cyanobacterial blooms in systems dominated by Synechococcus sp.
Ilona Złoch; Sylwia Śliwińska-Wilczewska; Marta Kucharska; Wiktoria Kozłowska. Allelopathic effects of Chara species (C. aspera, C. baltica, and C. canescens) on the bloom-forming picocyanobacterium Synechococcus sp. Environmental Science and Pollution Research 2018, 25, 36403 -36411.
AMA StyleIlona Złoch, Sylwia Śliwińska-Wilczewska, Marta Kucharska, Wiktoria Kozłowska. Allelopathic effects of Chara species (C. aspera, C. baltica, and C. canescens) on the bloom-forming picocyanobacterium Synechococcus sp. Environmental Science and Pollution Research. 2018; 25 (36):36403-36411.
Chicago/Turabian StyleIlona Złoch; Sylwia Śliwińska-Wilczewska; Marta Kucharska; Wiktoria Kozłowska. 2018. "Allelopathic effects of Chara species (C. aspera, C. baltica, and C. canescens) on the bloom-forming picocyanobacterium Synechococcus sp." Environmental Science and Pollution Research 25, no. 36: 36403-36411.
The contribution of picocyanobacteria (PCY) to summer phytoplankton blooms, accompanied by an ecological crisis is a new phenomenon in Europe. This issue requires careful investigation. The present study examined the response of Synechococcus sp. physiology to different environmental conditions. Three strains of Synechococcus sp. (red BA-120, green BA-124, and brown BA-132) were cultivated in a laboratory under previously determined environmental conditions. These conditions were as follows: temperature (T) from 10 by 5 to 25 ∘C, salinity from 3 by 5 to 18 PSU, and photosynthetically active radiation (PAR) from 10 by 90 to 280 µmol photons m−2 s−1, which gave 64 combinations of synthetic, though realistic, environmental scenarios. Scenarios reflecting all possible combinations were applied in the laboratory experiments. Results pointed to differences in final numbers of cells among strains. However, there was also a similar tendency for BA-124 and BA-132, which demonstrated the highest concentrations of PCY cells at elevated T and PAR. This was also the case for BA-120 but only to a certain degree as the number of cells started to decrease above 190 µmol photons m−2 s−1 PAR. Pigmentation, chlorophyll a (Chl a), fluorescence, and rate of photosynthesis presented both similarities and differences among strains. In this context, more consistent features were observed between brown and red strains when compared to the green. In this paper, the ecophysiological responses of PCY are defined.
Sylwia Śliwińska-Wilczewska; Agata Cieszyńska; Jakub Maculewicz; Adam Latała. Ecophysiological characteristics of red, green, and brown strains of the Baltic picocyanobacterium Synechococcus sp. – a laboratory study. Biogeosciences 2018, 15, 6257 -6276.
AMA StyleSylwia Śliwińska-Wilczewska, Agata Cieszyńska, Jakub Maculewicz, Adam Latała. Ecophysiological characteristics of red, green, and brown strains of the Baltic picocyanobacterium Synechococcus sp. – a laboratory study. Biogeosciences. 2018; 15 (20):6257-6276.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska; Agata Cieszyńska; Jakub Maculewicz; Adam Latała. 2018. "Ecophysiological characteristics of red, green, and brown strains of the Baltic picocyanobacterium Synechococcus sp. – a laboratory study." Biogeosciences 15, no. 20: 6257-6276.
Allelopathic picocyanobacteria have been responsible for harmful incidents with severe ecological impacts in many parts of the world. The allelopathic interactions that have been shown to be implied in the dominance of various species of phytoplankton, forming massive blooms, are influenced by environmental factors such as nutrient concentration. This study aims to determine in what extent the allelopathic activity of the bloom‐forming picocyanobacterium Synechococcus sp. is impacted by water stoichiometry. We measured the allelopathic activity of Synechococcus sp. on growth, chlorophyll fluorescence and photosynthetic performance of green algae Chlorella vulgaris and Oocystis submarina and diatoms Bacillaria paxillifer and Skeletonema marinoi by addition of cell‐free filtrate obtained from cultures growing in nutrient‐sufficient (NP), nitrogen‐deficient (‐N) or phosphorus‐deficient (‐P) culture medium. These studies indicated that sufficient amounts of nutrients affected the picocyanobacterium increasing its production of allelochemicals. Conversely, the weakest allelopathic activity was recorded after the addition of a filtrate obtained from Synechococcus sp. grown at ‐N medium. The highest decline in growth, the maximum quantum yield of photosystem II (PSII) photochemistry (Fv/Fm) and the photosynthetic capacity (Pm) were observed for diatom S. marinoi. On the other hand, Synechococcus sp. filtrate had no allelopathic effects on O. submarina. While confirming the allelopathic activity of Synechococcus sp. these findings show that production of allelopathic substances is influenced by the availability of nutrients.
Sylwia Śliwińska-Wilczewska; Adam Latała. Allelopathic activity of the bloom-forming picocyanobacteriumSynechococcussp. on the coexisting microalgae: The role of eutrophication. International Review of Hydrobiology 2018, 103, 37 -47.
AMA StyleSylwia Śliwińska-Wilczewska, Adam Latała. Allelopathic activity of the bloom-forming picocyanobacteriumSynechococcussp. on the coexisting microalgae: The role of eutrophication. International Review of Hydrobiology. 2018; 103 (3-4):37-47.
Chicago/Turabian StyleSylwia Śliwińska-Wilczewska; Adam Latała. 2018. "Allelopathic activity of the bloom-forming picocyanobacteriumSynechococcussp. on the coexisting microalgae: The role of eutrophication." International Review of Hydrobiology 103, no. 3-4: 37-47.
Zofia Konarzewska; Sylwia Śliwińska-Wilczewska; Adam Latała. Allelopathic activity of the three strains of Baltic picocyanobacterium Synechococcus sp. on selected algae and cyanobacteria. Acta Universitatis Mattiae Belii series Environmental Management 2018, 20, 1 .
AMA StyleZofia Konarzewska, Sylwia Śliwińska-Wilczewska, Adam Latała. Allelopathic activity of the three strains of Baltic picocyanobacterium Synechococcus sp. on selected algae and cyanobacteria. Acta Universitatis Mattiae Belii series Environmental Management. 2018; 20 (1):1.
Chicago/Turabian StyleZofia Konarzewska; Sylwia Śliwińska-Wilczewska; Adam Latała. 2018. "Allelopathic activity of the three strains of Baltic picocyanobacterium Synechococcus sp. on selected algae and cyanobacteria." Acta Universitatis Mattiae Belii series Environmental Management 20, no. 1: 1.
Paramecium bursaria (Ciliophora) is a cosmopolitan unicellular organism that plays a significant role in aquatic ecosystems. P. bursaria contains symbiotic algae and this association is a mutual symbiosis. The aim of the present study was to determine the activity of photosystem II (PSII) in Chlorella sp. inside P. bursaria cells. Ciliates were incubated for 7 days at different temperatures from 6 to 18°C, under the circadian cycle: 12 h light/12 h dark, at light intensity of 200 μmol m-2 s-1 and under constant darkness conditions. The control group was kept at a temperature of 18°C under constant light conditions. Changes in PSII were monitored using different fluorescence parameters. Differences in responses between endosymbiotic algae of two P. bursaria strains – Ard7 from a warm climate and KD64 from a cold climate – were determined. The highest photosynthetic activity of P. bursaria green endosymbionts was observed at a temperature of 18°C, regardless of the light conditions. Algae from warm climate were more sensitive to cold temperature stress than algae from P. bursaria collected in cold climate.
Katarzyna Możdżeń; Patrycja Z. Leśnicka; Tomasz Burnecki; Sylwia Śliwińska-Wilczewska; Andrzej Skoczowski; Magdalena Greczek-Stachura. Photosynthetic efficiency of endosymbiotic algae of Paramecium bursaria originating from locations with cold and warm climates. Oceanological and Hydrobiological Studies 2018, 47, 202 -210.
AMA StyleKatarzyna Możdżeń, Patrycja Z. Leśnicka, Tomasz Burnecki, Sylwia Śliwińska-Wilczewska, Andrzej Skoczowski, Magdalena Greczek-Stachura. Photosynthetic efficiency of endosymbiotic algae of Paramecium bursaria originating from locations with cold and warm climates. Oceanological and Hydrobiological Studies. 2018; 47 (2):202-210.
Chicago/Turabian StyleKatarzyna Możdżeń; Patrycja Z. Leśnicka; Tomasz Burnecki; Sylwia Śliwińska-Wilczewska; Andrzej Skoczowski; Magdalena Greczek-Stachura. 2018. "Photosynthetic efficiency of endosymbiotic algae of Paramecium bursaria originating from locations with cold and warm climates." Oceanological and Hydrobiological Studies 47, no. 2: 202-210.