COMPOSITION AND SUCCESSION OF CYANOPHYCEAN WATER BLOOMS<sup>1</sup>

Vance, B. Dwain

doi:10.1111/j.1529-8817.1965.tb04562.x

Cited by 53 publications

(21 citation statements)

References 16 publications

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“…Rhodomonas sp. has also been reported to be sensitive to cyanobacterial allelochemicals (Vance 1965). On the other hand, diatoms were one of the groups most affected by Prymnesium parvum allelochemicals (Fistarol et al 2003).…”

Section: Effect On Phytoplanktonmentioning

confidence: 99%

Allelopathy in Alexandrium spp.: effect on a natural plankton community and on algal monocultures

Fistarol¹,

Legrand²,

Selander³

et al. 2004

Aquat. Microb. Ecol.

158

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We studied allelopathy in the dinoflagellate genus Alexandrium by testing the effect of A. tamarense on a natural plankton community from Hopavågen Bay, Trondheimsfjord, Norway, and the effect of toxic and non-toxic strains of A. tamarense and a toxic strain of A. minutum on algal monocultures. Also, a possible relation between the allelopathic effect and the production of paralytic shellfish poison (PSP) toxin was investigated. A. tamarense affected the whole phytoplankton community by decreasing the growth rate and changing the community structure (relative abundance of each species, dominant species). A negative effect of A. tamarense was also observed on ciliates, but not on bacteria numbers. In the bioassay with algal monocultures, the diatom Thalassiosira weissflogii and the cryptophyte Rhodomonas sp. were exposed to the filtrate of Alexandrium spp. All tested Alexandrium strains negatively affected T. weissflogii and Rhodomonas sp. cultures, independent of whether PSP toxins were produced. The compounds released by Alexandrium caused lysis of natural and cultured algal cells, suggesting that the allelopathic effect may be connected with previously described ichthyotoxic and haemolytic properties of Alexandrium. Furthermore, the observation that several components of the plankton community were affected by compounds released by A. tamarense emphasizes the importance of allelopathy for the ecology of this species.

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Section: Effect On Phytoplanktonmentioning

confidence: 99%

Allelopathy in Alexandrium spp.: effect on a natural plankton community and on algal monocultures

Fistarol¹,

Legrand²,

Selander³

et al. 2004

Aquat. Microb. Ecol.

158

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“…Bloom succession between Microcystis and Anabaena appears every year in Lake Taihu and Lake Chaohu, which are the major eutrophic lakes in China (Wang et al 2012a;Liu et al 2014). This succession period of dominant bloom species is usually very short and often lasts less than 1 month (Vance 1965;Jia et al 2011). The quick succession between the two types of blooms has attracted the attention of many researchers (Lin 1972;Wu et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic characteristics and inferred changes in thylakoid membrane fluidity determine bloom succession between Anabaena and Microcystis in eutrophic lakes

Wang

Cao

et al. 2016

J Appl Phycol

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Anabaena and Microcystis are common dominant cyanobacterial genera and frequently form blooms in large shallow eutrophic lakes in China. There is usually a quick succession between these two cyanobacterial blooms in early summer; however, there is currently no solid evidence based on photosynthesis and population competition to explain this phenomenon. This study compared the photosynthetic parameters and the indirectly measured thylakoid membrane fluidity characteristics between Anabaena and Microcystis. The results showed that the growth rate, the maximum photochemical efficiency of PSII (F v /F m ), and the maximum relative electron transport rate (rETR max ) of Microcystis cultured at 25°C were significantly lower than those from cells grown at 15°C, indirectly suggesting a marked limitation of thylakoid membrane fluidity at low temperatures. Chlorophyll fluorescence dynamics also indicated inhibition of NPQ formation and membrane fluidity when Microcystis was cultured at low temperatures; however, this inhibition was not significant for Anabaena. Fourier transition infrared (FT-IR) spectrometry indicated that the thylakoid membrane of Anabaena can maintain homeostasis fluidity through the upregulation of unsaturated fatty acids when exposed to chilling stress. Increasing the temperature significantly promoted the growth rate of Microcystis, while it had little effect on Anabaena. Moreover, photoinhibition of Anabaena was more easily induced by high light, thus accelerating the bloom succession from Anabaena to Microcystis during warm seasons. An activation-energy model was used to deduce that the threshold temperature of bloom succession was 15.4°C, which would increase to 16.2°C and decrease to 14.9°C under conditions of N-limitation and P-limitation.

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“…King 1970King , 1972, an ability to chelate iron (Murphy et al 1976), the production of toxic extracellular products (Vance 1965;Kcating 1977;Reynolds et al 198 l), reduced population losses (Kalff and Knoechel 1978), and decreased vulnerability to grazing (Arnold 197 1;Porter 1972). The hypothesis that has sustained most attention, however, suggests that their success is due to their ability to control cell buoyancy through light-mediated collapse and reformation of gas vacuoles.…”

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confidence: 99%

Cyanophyte blooms: The role of cell buoyancy1

Humphries

Lyne

1988

Limnology & Oceanography

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A one-dimensional model of growth diffusion and scaling arguments show that bloom formation in epilimnctic cyanophytcs is attributable to the passive mechanism of positive buoyancy of the cells, which enhances the average exposure of the population to light. The effects of interacting turbulent diffusion, photic depth, mixed-layer depth, and diurnal mixed-layer excursions on population growth rate and biomass production differ radically for positively and negatively buoyant cells. Over the typical range of sinking and rising velocities for lake phytoplankton and the characteristic velocities of turbulent mixing, the proportion of the maximum achievable growth rate attained is always greater for a positively buoyant species until significant self-shading occurs. The magnitude of the difference is determined by the ratio of photic depth (z,) to mixed-layer depth (z,,); the advantages of positive buoyancy decrease as zp approaches z,,,. Results furthermore suggest that a positively buoyant population is able to track diurnal mixed-layer excursions and thus to experience a more favorable average daily z, : z, ratio than is possible for a negatively buoyant population.

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COMPOSITION AND SUCCESSION OF CYANOPHYCEAN WATER BLOOMS¹

Cited by 53 publications

References 16 publications

Allelopathy in Alexandrium spp.: effect on a natural plankton community and on algal monocultures

Allelopathy in Alexandrium spp.: effect on a natural plankton community and on algal monocultures

Photosynthetic characteristics and inferred changes in thylakoid membrane fluidity determine bloom succession between Anabaena and Microcystis in eutrophic lakes

Cyanophyte blooms: The role of cell buoyancy1

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COMPOSITION AND SUCCESSION OF CYANOPHYCEAN WATER BLOOMS1

Cited by 53 publications

References 16 publications

Allelopathy in Alexandrium spp.: effect on a natural plankton community and on algal monocultures

Allelopathy in Alexandrium spp.: effect on a natural plankton community and on algal monocultures

Photosynthetic characteristics and inferred changes in thylakoid membrane fluidity determine bloom succession between Anabaena and Microcystis in eutrophic lakes

Cyanophyte blooms: The role of cell buoyancy1

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COMPOSITION AND SUCCESSION OF CYANOPHYCEAN WATER BLOOMS¹