Allelopathic interactions between microcystin-producing and non-microcystin-producing cyanobacteria and green microalgae: implications for microcystins production

Bittencourt‐Oliveira, Maria do Carmo; Chia, Mathias Ahii; Oliveira, Helton Soriano Bezerra de; Araújo, Micheline Kézia Cordeiro; Molica, Renato José Reis; Dias, Carlos Tadeu Santos

doi:10.1007/s10811-014-0326-2

Cited by 72 publications

(46 citation statements)

References 42 publications

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“…Disentangle when the observed growth responses are caused by allelochemicals or by the costs associated to the production of compounds is an important and critical question but would require further investigations on the nature of released compounds. Our experiment is consistent with other studies showing that exudates of Microcystis can influence the physiology of other cyanobacteria (Bartova et al ., ; Yang et al ., ; Maria et al ., ) or green algae (Bittencourt‐Oliveira et al ., ; Ma et al ., ; Dunker et al ., ; Song et al ., ; Wang et al ., ). Exposure of Microcystis strains may result in various effects on the targeted organism ranging from alteration of growth and cellular morphology, photosynthesis, changes in pigment, protein, increased formation of reactive oxygen species, activation of gene expression or cell lysis.…”

Section: Discussionmentioning

confidence: 98%

Chemically mediated interactions between Microcystis and Planktothrix: impact on their growth, morphology and metabolic profiles

Briand

Reubrecht

Mondeguer

et al. 2019

Environmental Microbiology

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Summary Freshwater cyanobacteria are known for their ability to produce bioactive compounds, some of which have been described as allelochemicals. Using a combined approach of co‐cultures and analyses of metabolic profiles, we investigated chemically mediated interactions between two cyanobacterial strains, Microcystis aeruginosa PCC 7806 and Planktothrix agardhii PCC 7805. More precisely, we evaluated changes in growth, morphology and metabolite production and release by both interacting species. Co‐culture of Microcystis with Planktothrix resulted in a reduction of the growth of Planktothrix together with a decrease of its trichome size and alterations in the morphology of its cells. The production of intracellular compounds by Planktothrix showed a slight decrease between monoculture and co‐culture conditions. Concerning Microcystis, the number of intracellular compounds was higher under co‐culture condition than under monoculture. Overall, Microcystis produced a lower number of intracellular compounds under monoculture than Planktothrix, and a higher number of intracellular compounds than Planktothrix under co‐culture condition. Our investigation did not allow us to identify specifically the compounds causing the observed physiological and morphological changes of Planktothrix cells. However, altogether, these results suggest that co‐culture induces specific compounds as a response by Microcystis to the presence of Planktothrix. Further studies should be undertaken for identification of such potential allelochemicals.

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Section: Discussionmentioning

confidence: 98%

Chemically mediated interactions between Microcystis and Planktothrix: impact on their growth, morphology and metabolic profiles

Briand

Reubrecht

Mondeguer

et al. 2019

Environmental Microbiology

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“…MCs are the largest and most structurally diverse group of cyanobacterial toxins and several cases where MCs act as allelopathic compounds have been reported (Singh et al, 2001;Pflugmacher, 2002;Yang et al, 2014;Bittencourt-Oliveira et al, 2015). Microcystis spp.…”

Section: Discussionmentioning

confidence: 99%

Toxic and non-toxic strains of Microcystis aeruginosa induce temperature dependent allelopathy toward growth and photosynthesis of Chlorella vulgaris

Tingxuan

Thring

et al. 2015

Harmful Algae

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“…However, in this study, the greatest allelopathic effect was observed for picocyanobacterium growing in a nutrient‐sufficient culture medium. Other authors also observed that some cyanobacteria can cause allelopathy under non‐limiting nutrient conditions (Allen et al, ; Bittencourt‐Oliveira et al, ; Brutemark et al, ; Dias et al, ; Leflaive & Ten‐Hage, ). Allen et al () showed that allelopathic compounds produced by green algae Uronema confervicolum were the highest in the treatment with the highest nutrient level and were much lower in the unbalanced nutrients treatments.…”

Section: Discussionmentioning

confidence: 92%

Allelopathic activity of the bloom‐forming picocyanobacterium Synechococcus sp. on the coexisting microalgae: The role of eutrophication

Śliwińska‐Wilczewska

Latała

2018

Internat Rev Hydrobiol

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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.

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Allelopathic interactions between microcystin-producing and non-microcystin-producing cyanobacteria and green microalgae: implications for microcystins production

Cited by 72 publications

References 42 publications

Chemically mediated interactions between Microcystis and Planktothrix: impact on their growth, morphology and metabolic profiles

Chemically mediated interactions between Microcystis and Planktothrix: impact on their growth, morphology and metabolic profiles

Toxic and non-toxic strains of Microcystis aeruginosa induce temperature dependent allelopathy toward growth and photosynthesis of Chlorella vulgaris

Allelopathic activity of the bloom‐forming picocyanobacterium Synechococcus sp. on the coexisting microalgae: The role of eutrophication

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