Assessment of Tolerance to Lanthanum and Cerium in Helianthus Annuus Plant: Effect on Growth, Mineral Nutrition, and Secondary Metabolism

Dridi, Nesrine; Ferreira, Renata; Bouslimi, Houda; Brito, Pedro; Dias, Sandra; Caçador, Isabel; Sleimi, Noomène

doi:10.3390/plants11070988

Cited by 15 publications

(10 citation statements)

References 57 publications

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“…In conformity, the polyphenol contents were stimulated after the exposure of the okra plants to increasing doses of Al and Ba. This behavior was also observed in Brassica juncea and Cackile maritima plants subjected to Ba stress [ 19 ], as well as in Helianthus annuus plants treated with La and Ce [ 63 ]. Indeed, phenolic compounds play the role of antioxidants by participating in ROS scavenging, catalyzing the reactions of oxygenation through the formation of metallic complexes, and via the inhibition of the activities of oxidizing enzymes [ 64 ].…”

Section: Discussionmentioning

confidence: 67%

Appraisal of Abelmoschus esculentus L. Response to Aluminum and Barium Stress

Kouki

Dridi

Vives‐Peris

et al. 2023

Plants

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Trace metal element (TME) pollution is a major threat to plants, animals and humans. Agricultural products contaminated with metals may pose health risks for people; therefore, international standards have been established by the FAO/WHO to ensure food safety as well as the possibility of crop production in contaminated soils. This study aimed to assess the accumulating potential of aluminum and barium in the roots, shoots and fruits of Abelmoschus esculentus L., and their effect on growth and mineral nutrition. The content of proline and some secondary metabolites was also evaluated. After treating okra plants with aluminum/barium (0, 100, 200, 400 and 600 µM) for 45 days, the results showed that Al stimulated the dry biomass production, whereas Ba negatively affected the growth and the fructification yield. The okra plants retained both elements and exhibited a preferential accumulation in the roots following the sequence: roots ˃ shoots ˃ fruits, which is interesting for phytostabilization purposes. Al or Ba exposure induced a decline in mineral uptake (K, Ca, Mg, Zn and Fe), especially in roots and shoots. In order to cope with the stress conditions, the okra plants enhanced their proline and total phenol amounts, offering better adaptability to stress.

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Section: Discussionmentioning

confidence: 67%

Appraisal of Abelmoschus esculentus L. Response to Aluminum and Barium Stress

Kouki

Dridi

Vives‐Peris

et al. 2023

Plants

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“…[54]. In addition, Dridi et al (2022) demonstrated that La contents in Helianthus annuus roots were greater than those in shoots [55].…”

Section: Discussionmentioning

confidence: 99%

“…The influence of La on the biosynthesis of secondary metabolites was reported in the literature. Dridi et al (2022) exposed Helianthus annuus plants to La (1-10 µM) and discovered that the presence of La promoted the production of phenols and flavonoids [55]. In addition, La stimulated taxol production in Taxus yunnanensis cell cultures [10] and induced a general increase in certain phenolic acids in Hypericum perforatum [74].…”

Section: Discussionmentioning

confidence: 99%

Appraisal of the Physiological Response of Cakile maritima and Brassica juncea for Tolerating Lanthanum Stress

Bouslimi,

Dridi,

Ferreira

et al. 2023

JMSE

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Rare earth elements were extensively employed for many years to improve plant growth in farming. However, their effect on plant’s behavior relies on their concentration and the plant species. The impact of low doses of lanthanum (La; 1–10 µM) on plant growth, mineral uptake, and the production of secondary metabolites was assessed in two Brassicaceae species (Cakile maritime and Brassica juncea) after 14 days of La exposure. The La accumulation potential was also evaluated. Results showed that both species were able to maintain good dry biomass production under La. C. maritima plants accumulated more La than B. juncea, and a higher accumulation was noticed in the roots (in both plant species). Accordingly to La accumulation in plant tissues, nutrient absorption was affected in C. maritima shoots and roots, whereas no severe effect on nutrient contents was noticed in B. juncea. Phenolic compounds increased in the aerial and underground parts of both species; thus, the accretion was more notorious in shoots of the highest La concentrations. The studied Brassicaceae species showed an ability to survive in a La-contaminated medium. However, according to tolerance index values, C. maritima was found to be more tolerant of La than B. juncea.

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“…REE tolerance mechanisms have been reported in plants such as Dicranopteris linearis, Phytolacca sp., Helianthus Annuus [32][33][34], and in microalgae such as Galdieria sulphuraria and Desmodesmus quadricauda [35,36], but very little information concerns diatoms [26].…”

Section: Discussionmentioning

confidence: 99%

Multi-Endpoint Analysis of Cerium and Gadolinium Effects after Long-Term Exposure to Phaeodactylum tricornutum

Siciliano,

Spampinato,

Salbitani

et al. 2024

Environments

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The significantly increasing levels of Rare Earth Elements (REEs) in seawater are largely due to multiple anthropogenic activities. Their effects on marine primary producers such as Phaeodactylum tricornutum have not been fully assessed. This study focused on examining the long-term impacts of these two commonly occurring REEs, cerium (Ce) and gadolinium (Gd), on marine diatoms by 28 d of exposure. The 72 h effective concentrations that inhibited the growth of 20% (EC20) and 50% (EC50) of the exposed population were used for long-term exposures. The growth, oxidative stress level, photosynthetic pigments, and chlorophyll fluorescence were assessed in the diatoms, after 7, 14, 21, and 28 d of REEs exposure. Results display a difference in the toxicity induced by the two elements. Exposure to 2.39 mg/L (EC20) and 3.13 mg/L (EC50) of Ce, and to 4.52 mg/L (EC20) and 6.02 mg/L (EC50) of Gd displayed a lower effect on the growth of algae cells, as the response remained below 20% for inhibition or stimulation. Except for GD, the ROS and the activities of SOD, and LPO showed, during the exposure, comparable levels respect to control cells. A change in chlorophyll levels was also observed especially under Ce exposure. Both elements showed changes in photosynthetic performance. This study provides new insights into the different effects of Ce and Gd on P. tricornutum, demonstrating their diverse modes of action on this important primary producer. The findings provide further evidence of the adverse effects of anthropogenic REEs pollution on marine ecosystems.

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Assessment of Tolerance to Lanthanum and Cerium in Helianthus Annuus Plant: Effect on Growth, Mineral Nutrition, and Secondary Metabolism

Cited by 15 publications

References 57 publications

Appraisal of Abelmoschus esculentus L. Response to Aluminum and Barium Stress

Appraisal of Abelmoschus esculentus L. Response to Aluminum and Barium Stress

Appraisal of the Physiological Response of Cakile maritima and Brassica juncea for Tolerating Lanthanum Stress

Multi-Endpoint Analysis of Cerium and Gadolinium Effects after Long-Term Exposure to Phaeodactylum tricornutum

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