Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/120407
Author(s): Pereira A.L.
Azevedo J.
Vasconcelos V.
Title: Assessment of uptake and phytotoxicity of cyanobacterial extracts containing microcystins or cylindrospermopsin on parsley (Petroselinum crispum L.) and coriander (Coriandrum sativum L)
Publisher: Springer Verlag (Germany)
Issue Date: 2017
Abstract: Blooms of harmful cyanobacteria that synthesize cyanotoxins are increasing worldwide. Agronomic plants can uptake these cyanotoxins and given that plants are ultimately ingested by humans, this represents a public health problem. In this research, parsley and coriander grown in soil and watered through 7 days with crude extracts containing microcystins (MCs) or cylindrospermopsin (CYN) in 0.1–1 μg mL−1 concentration range were evaluated concerning their biomass, biochemical parameters and uptake of cyanotoxins. Although biomass, chlorophylls (a and b), carotenoids and glutathione-S-transferase of parsley and coriander exposed to the crude extracts containing MC or CYN had shown variations, these values were not statistically significantly different. Protein synthesis is not inhibited in coriander exposed to MC or CYN and in parsley exposed to MC. Also, glutathione reductase (GR) and glutathione peroxidase (GPx) in parsley and coriander was not affected by exposure to MC, and in coriander, the CYN did not induce statistically significant differences in these two antioxidative enzymes. Only parsley showed statistically significant increase in protein content exposed to 0.5 μg CYN mL−1 (3.981 ± 0.099 mg g−1 FW) compared to control (2.484 ± 0.145 mg g−1 FW), statistically significant decrease in GR exposed to 0.1 μg CYN mL−1 (0.684 ± 0.117 nmol min−1 mg−1 protein) compared to control (1.30 ± 0.06 nmol min−1 mg−1 protein) and statistically significant increase in GPx exposed to 1 μg CYN mL−1 (0.054 ± 0.026 nmol min−1 mg−1 protein) compared to 0.5 μg CYN mL−1 (0.003 ± 0.001 nmol min−1 mg−1 protein). These changes may be due to the induction of defensive mechanisms by plants by the presence of toxic compounds in the soil or probably to a low generation of reactive oxygen species. Furthermore, the parsley and coriander leaves and stems after 10 days of exposure did not accumulate microcystins or cylindrospermopsin. © 2016, Springer-Verlag Berlin Heidelberg.
Subject: antioxidant
biological uptake
cyanobacterium
defense mechanism
dicotyledon
dose-response relationship
enzyme activity
herb
phytochemistry
phytomass
phytotoxicity
pigment
pollution effect
pollution exposure
protein
reactive oxygen species
toxicity test
toxin
Coriandrum sativum
Cyanobacteria
Petroselinum crispum
antioxidant
bacterial toxin
chlorophyll
cylindrospermopsin
glutathione peroxidase
glutathione reductase
glutathione transferase
microcystin
uracil
analogs and derivatives
chemistry
Coriandrum
cyanobacterium
drug effects
metabolism
Petroselinum
Antioxidants
Bacterial Toxins
Chlorophyll
Coriandrum
Cyanobacteria
Glutathione Peroxidase
Glutathione Reductase
Glutathione Transferase
Microcystins
Petroselinum
Uracil
URI: https://hdl.handle.net/10216/120407
Source: Environmental Science and Pollution Research, vol. 24(2), p. 1999-2009
Related Information: info:eu-repo/grantAgreement/FCT/5876/147268/PT
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:CIIMAR - Artigo em Revista Científica Internacional

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