Benthic cyanobacteria: A source of cylindrospermopsin and microcystin in Australian drinking water reservoirs

Gaget, Virginie; Humpage, Andrew R.; Huang, Qiong; Monis, Paul; Brookes, Justin D.

doi:10.1016/j.watres.2017.07.073

Cited by 91 publications

(47 citation statements)

References 38 publications

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“…Hence, cyanobacteria have some mechanisms for inhibiting the development of RKNs. For example, many forms of cyanobacteria are informed to create a large number of toxic compounds like, nodularins, microcystins, neurotoxins (Holajjer et al, 2013;Gaget et al, 2017) and benzoic acid which produced by microalgae (Uzaira et al, 2018). Cyanobacteria can also depress pathogenic agents by distraction of the cytoplasmic membrane and suppression of the protein creation (Swain et al, 2017).…”

Section: Antagonistic Effects Of the Yeast And Cyanobacteria On Nematmentioning

confidence: 99%

Effect of Saccharomyces cerevisiae and Spirulina platensis on Suppressing Root-knot Nematode, Meloidogyne incognita Infecting Banana Plants under Greenhouse Conditions

Hamouda

Al-Saman

El-Ansary

2019

Egyptian Journal of Agronematology

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Banana production is severely hindered by plant-parasitic nematodes (PPNs) worldwide. Chemical nematicide, oxamyl is a systematic compound widely applied for the control of PPNs. Because of increase pests' problems, harmful effects on human and environment caused by chemical pesticides and also increased consumer requirements for safe crops have encouraged research on bio-pesticides production. So, the effect of different stress of the yeast, Saccharomyces cerevisiae and blue green algae (cyanobacteria), Spirulina platensis were examined on banana plants infected with root-knot nematodes, Meloidogyne incognita. All tested treatments were effective methods to manage M. incognita in soil samples and banana roots. Notably, the usage of S. cerevisiae and S. platensis in combination treatment revealed the greater antagonistic action on M. incognita in potted banana. In addition it has an avail advantage over artificial nematicides by having several means to attack the RKN and mainly enhanced plant growth compared to any other treatments. Yet, the previous treatment had increased catalase (CAT) enzyme activity and reduced pectin methyl esterase (PME) activity in banana plant that leads to inhibit the count of the RKN. Generally, our results supply a novel knowledge to understand of PPNs management as a new approach for applying bio-fertilizer and bio-control of the parasitic nematodes.

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Section: Antagonistic Effects Of the Yeast And Cyanobacteria On Nematmentioning

confidence: 99%

Effect of Saccharomyces cerevisiae and Spirulina platensis on Suppressing Root-knot Nematode, Meloidogyne incognita Infecting Banana Plants under Greenhouse Conditions

Hamouda

Al-Saman

El-Ansary

2019

Egyptian Journal of Agronematology

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“…Max-trees were set to 5000 and no-increase, branches of zero length were collapsed and all parsimonious trees were saved. Clade stability was assessed using a bootstrap (BT) analyses with 1,000 replicates (Gaget et al 2017). Descriptive tree statistics, tree length (TL), consistency index (CI), retention index (RI), rescaled consistency index (RC) and homoplasy index (HI), were calculated for all trees generated under different optimality criteria.…”

Section: Molecular Procedures and Phylogenetic Analysesmentioning

confidence: 99%

Hydnaceous fungi of China 8. Morphological and molecular identification of three new species of Sarcodon and a new record from southwest China

Mu¹,

Hu²,

Wei³

et al. 2020

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Three new stipitate hydnoid fungi, Sarcodon coactus, S. grosselepidotus and S. lidongensis, are described and illustrated, based on morphological characteristics and nuc ITS rDNA + nuc LSU rDNA sequence analyses and a new record, S. leucopus, from China is reported. S. coactus is characterised by ellipsoid to round basidiocarps, reddish-brown to dark brown, felted pileal surface with white and incurved margins, simple-septate and partly short-celled generative hyphae and irregular subglobose, thin-walled, brown basidiospores with tuberculate ornamentation (tuberculi up to 1 μm long). S. grosselepidotus is characterised by infundibuliform to round, occasionally deeply fissured pileus, pale orange to dark ruby pileal surface with ascending and coarse scales, simple-septate generative hyphae and irregular ellipsoid to globose, thin-walled, brown basidiospores with tuberculate ornamentation (tuberculi up to 0.7 μm long). S. lidongensis is characterised by plano-convex to somewhat depressed and regular orbicular pileus, light brown to dark brown pileal surface with adhering squamose and purplish-brown, incurved and occasionally incised margin, cylindrical or broadened below stipe, simple-septate generative hyphae and irregular ellipsoid to subglobose, thin-walled basidiospores with tuberculate ornamentation (tuberculi up to 1 μm long). The absence of the clamp connection is the common morphological characteristic of these three new species; however, S. leucopus, a new record from China, has frequently clamped generative hyphae. Molecular analyses confirm the phylogenetic positions of three new and the new record species. The discriminating characters of these three new species and closely related species are discussed and a key to the species of Sarcodon from China is provided.

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“…where c 0 and c t are the concentrations of CYN at time zero and time t, respectively. In the reaction, the concentration of CYN at a given reaction time can be calculated using Equation (1). When the log of CYN concentration is plotted as a function of time, the rate constant (k) is given by the slope, and the CYN half-life can be calculated using Equation (2).…”

Section: Degradation Of Cynmentioning

confidence: 99%

“…In recent years, cylindrospermopsin (CYN), detected in eutrophic water bodies of many countries across the world, has attracted increasing attention [1]. CYN is a guanidine alkaloid which contains three-ring guanidine and hydroxymethyl uracil ( Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Detoxification of Cylindrospermopsin by Pyrite in Water

et al. 2019

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Cylindrospermopsin (CYN) is a cyanobacterial toxin released from eutrophic water. It persistently remains in the environment because its degradation under solar light is extremely low. In this study, pyrite, an abundant mineral, was investigated as a catalyst for decomposing and detoxifying CYN in water. A detailed examination of intermediates provided insights into the degradation pathway. Electron spin resonance spectra revealed that H2O2 and hydroxyl radicals (•OH) were generated at the pyrite surface while promoting the recycling of Fe(III) into Fe(II) during the degradation process. This degradation system could be uniquely efficient in the presence of relatively high levels of natural organic matter because the structure of the uracil ring is decomposed to detoxify CYN. This work confirms a new approach to selectively and effectively detoxifying CYN in water using an inexpensive, environmentally friendly, and bio-compatible mineral.

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Benthic cyanobacteria: A source of cylindrospermopsin and microcystin in Australian drinking water reservoirs

Cited by 91 publications

References 38 publications

Effect of Saccharomyces cerevisiae and Spirulina platensis on Suppressing Root-knot Nematode, Meloidogyne incognita Infecting Banana Plants under Greenhouse Conditions

Effect of Saccharomyces cerevisiae and Spirulina platensis on Suppressing Root-knot Nematode, Meloidogyne incognita Infecting Banana Plants under Greenhouse Conditions

Hydnaceous fungi of China 8. Morphological and molecular identification of three new species of Sarcodon and a new record from southwest China

Detoxification of Cylindrospermopsin by Pyrite in Water

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