Development of a biomarker for metal bioavailability: The lettuce fatty acid composition

Guédard, Marina Le; Schraauwers, Blandine; Larrieu, Isabelle; Bessoule, Jean‐Jacques

doi:10.1897/07-277.1

Cited by 32 publications

(13 citation statements)

References 20 publications

(19 reference statements)

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“…Also, it should be noted that in roots, excess Cd had a strong effect on total lipid concentration and fatty acid composition. In previous studies (Verdoni et al [2001]; Le Guédard et al [2008]) carried out with lettuce and tomato seedlings in a controlled environment, we showed that the percentage of tri-unsaturated fatty acids in leaves decreased while the percentage of C18:2, and to a lesser extent C18:1 and C18:0, increased, when plants were grown for 14 d on metal-contaminated soils. Hence, we proposed that the leaf fatty acid composition, and more precisely the C18:3/(C18:0 + C18:1 + C18:2) ratio could be used as an indicator of metal bioavailability and of their adverse effects on plants.…”

Section: Discussionsupporting

confidence: 53%

Effects of cadmium on lipids of almond seedlings (Prunus dulcis)

Elloumi¹,

Zouari

Chaâri

et al. 2014

Bot Stud

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BackgroundCadmium uptake and distribution, as well as its effects on lipid composition was investigated in almond seedlings (Prunus dulcis) grown in culture solution supplied with two concentrations of Cd (50 and 150 μM).ResultsThe accumulation of Cd increased with external metal concentrations, and was considerably higher in roots than in leaves. Fourteen days after Cd treatment, the membrane lipids were extracted and separated on silica-gel thin layer chromatography (TLC). Fatty acid methyl esters were analyzed by FID-GC on a capillary column. Our results showed that Cd stress decreased the quantities of all lipids classes (phospholipids, galactolipids and neutral lipids). Galactolipid, phospholipid and neutral lipid concentrations decreased more in roots than in leaves by Cd-treatment. In almost all lipid classes the proportion of palmitic acid (16:0), linoleic (18: 2) and that of linolenic (18: 3) acid decreased, suggesting that heavy metal treatment induced an alteration in the fatty acid synthesis processes.ConclusionsIn conclusion, our results show that the changes found in total fatty acids, in the quantities of all lipids classes, and in the in the profiles of individual polar lipids suggest that membrane structure and function might be altered by Cd stress.Electronic supplementary materialThe online version of this article (doi:10.1186/s40529-014-0061-7) contains supplementary material, which is available to authorized users.

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Section: Discussionsupporting

confidence: 53%

Effects of cadmium on lipids of almond seedlings (Prunus dulcis)

Elloumi¹,

Zouari

Chaâri

et al. 2014

Bot Stud

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“…Alpha-linolenic acid may reduce arachidonic acid (ARA; 20:4n-6) levels by competing with LA for the same metabolic enzymes (e.g., responsible for the elongation of n-6 FA), reduces the levels of serum triglycerides and displays anti-inflammatory properties, which may help in the prevention of cardiovascular diseases and has a positive effect on the recovery of central nervous system injuries [63]. A predominance of ALA and LA was also observed in other vegetables, including lettuce [64]. In general, the FA profiles of the reported Sarcocornia species are similar to those described for Salicornia [12,13,65,66].…”

Section: Fatty Acids (Fa)mentioning

confidence: 99%

A Review on Sarcocornia Species: Ethnopharmacology, Nutritional Properties, Phytochemistry, Biological Activities and Propagation

Custódio

Rodrigues

Pereira

et al. 2021

Foods

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Sarcocornia A. J. Scott is a halophytic edible succulent plant belonging to the Amaranthaceae family. To date, the genus includes 28 species distributed worldwide in saline environments, usually salt marshes. Sarcocornia (Scott) is similar to Salicornia (L.), which has a recognized commercial value in morphological and taxonomical traits. Species of both genera are commonly named samphire or glassworts in Europe, and their fleshy shoots are commercialized under their traditional names. Due to their nutritional, organoleptic and medicinal properties, Sarcocornia species have a high economic potential in various biotechnology sectors. Being highly tolerant to salt, they can be cultivated in saline conditions, and dissimilar to Salicornia, they are perennial, i.e., they can be harvested year-round. Therefore, Sarcocornia species are considered promising gourmet vegetables to be explored in the context of climate change, soil and water salinization and eco-sustainability. We hereby put together and reviewed the most relevant information on Sarcocornia taxonomy, morphology, nutritional and pharmacological properties, uses in ethnomedicine, potential applications in biotechnology, and propagation strategies.

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“…Another leaflet of this leaf (number 3 from the collar) is used for analyzing the fatty acids [phospho-lipidic fatty acids (PLFA) trans-methylated to yield analyzable fatty acid methyl esters (FAME)] according to the norm Afnor X31-233 on the determination of the effects of microcystins on the foliar fatty acid content of Lactuta sativa (AFNOR 2012; Le Guedard et al (2008) and suitable for tomatoes (Verdoni et al 2001). The fatty acid composition was used as biomarker of contaminated soil with metallic or organic pollutants.…”

Section: Physiological Parameters Of Plantsmentioning

confidence: 99%

Soil irrigation with water and toxic cyanobacterial microcystins accelerates tomato development

et al. 2015

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Microcystins are cyclic heptapeptides hepatotoxins produced by aquatic cyanobacteria such as Microcystis aeruginosa. The wide occurrence of toxic microcystins in freshwater is a threat to water quality and health of living organisms. Here, we irrigated an agricultural soil daily with a cyanobacterial extract diluted at environmental concentrations of microcystin-leucine-arginine, from 0.005 to 0.1 mg equivalent MC-LR L -1 , for 90 days. We analyzed the impact on the growth and physiology of tomato, Solanum lycopersicum cultivar MicroTom. Our results show a stimulation of the tomato plant development, in terms of inflorescence and blooming, after exposure to the lowest concentration, of 0.005 mg eq. MC-LR L -1 , during the 40 first days postgermination. That effect was not apparently associated with physiological disturbances of the tomato plants.

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Development of a biomarker for metal bioavailability: The lettuce fatty acid composition

Cited by 32 publications

References 20 publications

Effects of cadmium on lipids of almond seedlings (Prunus dulcis)

Effects of cadmium on lipids of almond seedlings (Prunus dulcis)

A Review on Sarcocornia Species: Ethnopharmacology, Nutritional Properties, Phytochemistry, Biological Activities and Propagation

Soil irrigation with water and toxic cyanobacterial microcystins accelerates tomato development

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