Decoupling a novel Trichormus variabilis-Synechocystis sp. interaction to boost phycoremediation

Abedi, Sepideh; Astaraei, Fatemeh Razi; Ghobadian, Barat; Tavakoli, Omid; Jalili, Hasan; Greenwell, H. Christopher; Cummins, Ian; Chivasa, Stephen

doi:10.1038/s41598-019-38997-7

Cited by 12 publications

(7 citation statements)

References 56 publications

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“…Cytoplasmic signalling enables a single cell to initiate signalling and control physiological processes, as demonstrated by some multicellular photosynthetic prokaryotic systems, which can fix nitrogen (N). Nitrogen‐fixing cyanobacteria in the genus Anabaena grow as filaments consisting of chains of pluripotent photosynthetic cells when supplied with sufficient nitrate or ammonium in the growth medium (Abedi et al ., 2019a). Nitrogen limitation activates differentiation of one in every 10–20 photosynthetic cells into thick‐walled heterocysts, which are capable of fixing atmospheric N 2 (Abedi et al ., 2019b).…”

Section: Intercellular Signalling – Where a Single Cell Can Call The ...mentioning

confidence: 99%

Stress‐adaptive gene discovery by exploiting collective decision‐making of decentralized plant response systems

Chivasa

Goodman

2019

New Phytologist

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Summary Despite having a network of cytoplasmic interconnections (plasmodesmata) facilitating rapid exchange of metabolites and signal molecules, plant cells use the extracellular matrix as an alternative route for cell–cell communication. The need for extracellular signalling in plasmodesmata‐networked tissues is baffling. A hypothesis is proposed that this phenomenon defines the plant extracellular matrix as a ‘democratic space’ for collective decision‐making in a decentralized system, similar to quorum‐sensing in bacteria. Extracellular communication enables signal integration and coordination across several cell layers through ligand‐activated plasma membrane receptors. Recent results from drought stress‐adaptive responses and light‐mediated signalling in cell death activation show operational utility of this decision‐making process. Opportunities are discussed for new innovations in drought gene discovery using platforms targeting the extracellular matrix.

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Section: Intercellular Signalling – Where a Single Cell Can Call The ...mentioning

confidence: 99%

Stress‐adaptive gene discovery by exploiting collective decision‐making of decentralized plant response systems

Chivasa

Goodman

2019

New Phytologist

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“…Afterward, three different concentrations, including concentrations less than, as much as, and larger than ED50, were selected to be tested on the microalgae. Accordingly, three concentrations of each considered pharmaceutical, 50, 150, and 250 mg L –1 for ranitidine, 20, 60, and 100 mg L –1 for tramadol, and 100, 150, and 200 mg L –1 for gabapentin, were introduced to the culture medium separately, and their effects on the algal biomass production were monitored daily through OD measurements at 680 nm and compared with the control culture medium, which lacked these drugs 28 …”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, it has been reported in some studies that it can also be a good candidate for removing pharmaceuticals. [28][29][30] However, no study has thoroughly investigated the ability of Trichormus variabilis to remove or reduce such compounds.…”

Section: Introductionmentioning

confidence: 99%

“…It is also reported to be a resistant species in harsh environments, such as polluted waters, and can endure high concentrations of contamination. Furthermore, it has been reported in some studies that it can also be a good candidate for removing pharmaceuticals 28–30 . However, no study has thoroughly investigated the ability of Trichormus variabilis to remove or reduce such compounds.…”

Section: Introductionmentioning

confidence: 99%

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Removal of pharmaceutical compounds (ranitidine, tramadol, and gabapentin) from wastewater by Trichormus variabilis microalgae

Etesam,

Jalili,

Barshan

et al. 2024

Biofuels Bioprod Bioref

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Wastewater effluent from the pharmaceutical, cosmetic, and chemical industries often contains pharmaceutical contaminants, making the reuse of wastewater a controversial practice. Physical and chemical methods have been unsuccessful in removing these pollutants on a large scale. Microalgal technology has been introduced as a promising tool to tackle this issue. This study evaluated the performance of Trichormus variabilis microalgae in removing three contaminants, namely ranitidine, tramadol, and gabapentin. Three concentrations of each compound were introduced into the microalgal culture medium. The effect of these pharmaceutical concentrations on growth, biomass production, photosynthetic pigments, and protein and lipid content was evaluated and compared with control cultures over 14 days. It was found that T. variabilis was able to remove 61–100% of these drugs. Moreover, the addition of 250 mg L–1 of ranitidine to the algae culture medium led to a 33.4% reduction in biomass growth. Adding 20 mg L–1 of tramadol and 200 mg L–1 of gabapentin caused 30% and 19.2% biomass reductions, respectively. The presence of 100 mg L–1 of gabapentin led to a 38% and up to 14% increase in chlorophyll and carotenoid content in comparison with the control, while the presence of the other drugs reduced the content of chlorophyll and carotenoid. On the other hand, the protein content increased by 254% in the culture media compared to the control media in the presence of 50 mg L–1 ranitidine. Regarding lipid concentration, 20 mg L–1 of tramadol had the most important effect by doubling the lipid content in T. variabilis in comparison with the control. In conclusion, these drugs could be removed to a significant extent by T. variabilis, which is promising for larger scale applications.

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“…Vector graphics were drawn using Inkscape software, v0.92 . To provide images of T. variabilis cells, algal samples were cultivated and processed for transmission electron microscopy (TEM) as described previously . All the tables in this review were constructed from the primary results reported in different studies cited within each table.…”

Section: Methodsmentioning

confidence: 99%

Bioenergy production using Trichormus variabilis – a review

Abedi

Astaraei

Ghobadian

et al. 2019

Biofuels Bioprod Bioref

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Fossil-fuel processing and consumption contaminates air, soil, and water resources through the release of hazardous chemicals. The harnessing of renewable energy resources and development of sustainable technologies have become prime targets of research and increased investment to protect the environment. The use of bio-based feedstocks in energy production provides a valuable pollutioncurbing pathway with sustainability credentials, especially when wastewater is used to provide the nutrient requirements. The filamentous cyanobacterium Trichormus variabilis has attracted substantial attention from researchers due to its potential for dual industrial functions in bioenergy production and bioremediation. This species can use the power of sunlight energy efficiently to fix atmospheric CO 2 and to generate valuable chemical compounds, such as carbohydrates and fatty acids, which can be converted to biofuels. As it grows in nutrient-rich wastewater (industrial effluent) it can serve as a bioabsorbant and replace costly chemical catalysts and nano-materials traditionally used for the removal of nutrients and metals. However, no recent review has presented the potential for state-of-the-art T. variabilisdriven phycoremediation-bioenergy production systems. This review suggests possible routes from phycoremediation to energy production as a strategy for developing the industrial application of T. variabilis. It brings important research results on this species together and highlights major related challenges and opportunities. It explores the current status of the use of algae in bioremediation and the production of liquid and gaseous fuels utilizing wild-type and mutants of T. variabilis. Finally, key points underlying the potential for future research on optimization of robust technologies for supplying sustainable bioenergy using this organism are presented.

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Decoupling a novel Trichormus variabilis-Synechocystis sp. interaction to boost phycoremediation

Cited by 12 publications

References 56 publications

Stress‐adaptive gene discovery by exploiting collective decision‐making of decentralized plant response systems

Stress‐adaptive gene discovery by exploiting collective decision‐making of decentralized plant response systems

Removal of pharmaceutical compounds (ranitidine, tramadol, and gabapentin) from wastewater by Trichormus variabilis microalgae

Bioenergy production using Trichormus variabilis – a review

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