Effects of algicide on the growth of Microcystis flos-aquae and adsorption capacity to heavy metals

Liu, Y.; Wen, Xian; Chen, S. F.

doi:10.1007/s13762-014-0633-9

Cited by 10 publications

(5 citation statements)

References 30 publications

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“…As evidence has been provided for PCD in dinoflagellates exposed to the algicide IRI-160AA [25], the increased SA in the cell pellets of K. veneficum treatment compared to the control implied that this metabolite could serve a function similar to that observed in plants. A dose-dependent effect of SA on the growth of chlorophyte Chlorella vulgaris [55] and the cyanobacterium Microcystis flos-aquae [56] has also been demonstrated. The differential response of K. veneficum and Rhodomonas to the algicide may reflect their varied tolerance to SA, or species-specific SA requirements to cope with stresses induced by other compounds in IRI-160AA.…”

Section: Discussionmentioning

confidence: 88%

Metabolomic Insights of the Effects of Bacterial Algicide IRI-160AA on Dinoflagellate Karlodinium veneficum

Wang

Coyne

2022

Metabolites

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Shewanella sp. IRI-160 is an algicidal bacterium that secretes an algicide, IRI-160AA. This algicide specifically targets dinoflagellates, while having no adverse effects on other algal species tested. Dinoflagellates exposed to IRI-160AA exhibited increased production of reactive oxygen species (ROS), DNA damage, and cell cycle arrest, implying a programmed pathway leading to cell death (PCD). Here, a metabolomic analysis was conducted on dinoflagellate Karlodinium veneficum and a control cryptophyte species Rhodomonas exposed to IRI-160AA to investigate the cellular mechanisms behind the physiological effects and the specificity of this algicide. Results of this research supported previous observations about physiological responses to the algicide. A suite of metabolites was identified that increased in the cell pellets of K. veneficum but not in Rhodomonas, including oxidative stress biomarkers, antioxidants, and compounds involved in DNA damage and PCD. Overall, the results of this study illustrated the metabolomic mechanisms underlying the algicidal effects of IRI-160AA on dinoflagellates. This research also provided insights and future directions for studies on the cellular response of dinoflagellates exposed to antagonistic bacteria in the environment.

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Section: Discussionmentioning

confidence: 88%

Metabolomic Insights of the Effects of Bacterial Algicide IRI-160AA on Dinoflagellate Karlodinium veneficum

Wang

Coyne

2022

Metabolites

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“…These algae secrete polysaccharides will possible be secreted into the body of water during cell growth. EPS mostly is anionic polymer and capable of binding with heavy metals, which can play a protective role in the environment of heavy metals [3] . Volesky [6] found that there is alginate on the Alginate surface can be combined with heavy metals and protect itself.…”

Section: Detoxification Of Microalgae Itselfmentioning

confidence: 99%

A Review on Researches of interaction between heavy metals and microalgae in water

Liu¹,

YiWei²,

Sun³

2016

Proceedings of the 2016 International Conference on Civil, Transportation and Environment

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As the development and utilization of heavy metals in human society more and more, along with the increasing number of heavy metals are released into the water, more and more of the heavy metals are discharged into water bodies. After the heavy metals are into the water, the primary producers of algae in water are affected first. When microalgae are on the stress of heavy metals, it will produce a series of physiological responses to response to environmental stress by itself. Therefore it also has a detoxification mechanism in a certain concentration range, which has great significance for sewage treatment using microalgae. In this paper, we described the toxicity of heavy metals and detoxification mechanisms of microalgae when microalgae in the environment with heavy metals. And we prospected the follow-up research on microalgae detoxification.

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“…As HMs are potent inhibitors of various microbial activities, they can disrupt their regulation and expression by competing for metal binding sites or with enzymes, i.e., oxygenases [ 16 ], thus inhibiting the enzyme functions or proteins. Intermediates of PAHs, such as salicylic acid, can also impact microbial cell metabolism, and induce reactive oxygen species (ROS) production, thus affecting the adsorption capacity of HMs [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Heavy Metal-Polycyclic Aromatic Hydrocarbon Removal by Native Tunisian Fungal Species

Hkiri

Olicón-Hernández

Pozo

et al. 2023

JoF

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Multi-contamination by organic pollutants and toxic metals is common in anthropogenic and industrial environments. In this study, the five fungal strains Chaetomium jodhpurense (MH667651.1), Chaetomium maderasense (MH665977.1), Paraconiothyrium variabile (MH667653.1), Emmia lacerata, and Phoma betae (MH667655.1), previously isolated in Tunisia, were investigated for the simultaneous removal and detoxification of phenanthrene (PHE) and benzo[a]anthracene (BAA), as well as heavy metals (HMs) (Cu, Zn, Pb and Ag) in Kirk’s media. The removal was analysed using HPLC, ultra-high performance liquid chromatography (UHPLC) coupled to a QToF mass spectrometer, transmission electron microscopy, and toxicology was assessed using phytotoxicity (Lepidium sativum seeds) and Microtox® (Allivibrio fisherii) assays. The PHE and BAA degradation rates, in free HMs cultures, reached 78.8% and 70.7%, respectively. However, the addition of HMs considerably affected the BAA degradation rate. The highest degradation rates were associated with the significant production of manganese-peroxidase, lignin peroxidase, and unspecific peroxygenase. The Zn and Cu removal efficacy was considerably higher with live cells than dead cells. Transmission electron microscopy confirmed the involvement of both bioaccumulation and biosorption processes in fungal HM removal. The environmental toxicological assays proved that simultaneous PAH and HM removal was accompanied by detoxification. The metabolites produced during co-treatment were not toxic for plant tissues, and the acute toxicity was reduced. The obtained results indicate that the tested fungi can be applied in the remediation of sites simultaneously contaminated with PAHs and HMs.

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Effects of algicide on the growth of Microcystis flos-aquae and adsorption capacity to heavy metals

Cited by 10 publications

References 30 publications

Metabolomic Insights of the Effects of Bacterial Algicide IRI-160AA on Dinoflagellate Karlodinium veneficum

Metabolomic Insights of the Effects of Bacterial Algicide IRI-160AA on Dinoflagellate Karlodinium veneficum

A Review on Researches of interaction between heavy metals and microalgae in water

Simultaneous Heavy Metal-Polycyclic Aromatic Hydrocarbon Removal by Native Tunisian Fungal Species

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