The effect of lanthanide chloride on abscisic acid and electron-transport activity of some crops

Zeng, Fu Li; Zhang, Ming Feng; Zhou, Shao Min; Wu, Jialiang; Deng, Ru Wen

doi:10.1007/bf02784427

Cited by 11 publications

(2 citation statements)

References 10 publications

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“…The adverse effect of chloride associated with REEs had not been previously investigated. Our findings suggest that other experiments performed under hydroponic or soil conditions and which showed negative effects on plants [58,59,60,61,62] may be partly related to the chloride component of the tested compounds. Yet, undesirable effects of lanthanum have been observed with other REE forms [31,63,64], primarily with the nitrate form [30] that is more soluble than the oxide and the phosphate forms.…”

Section: Discussionmentioning

confidence: 52%

Uptake and Effects of Six Rare Earth Elements (REEs) on Selected Native and Crop Species Growing in Contaminated Soils

Carpenter¹,

Boutin²,

Allison³

et al. 2015

PLoS ONE

143

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Rare earth elements (REEs) have become increasingly important metals used in modern technology. Processes including mining, oil refining, discarding of obsolete equipment containing REEs, and the use of REE-containing phosphate fertilizers may increase the likelihood of environmental contamination. However, there is a scarcity of information on the toxicity and accumulation of these metals to terrestrial primary producers in contaminated soils. The objective of this work was to assess the phytotoxicity and uptake from contaminated soil of six REEs (chloride forms of praseodymium, neodymium, samarium, terbium, dysprosium, and erbium) on three native plants (Asclepias syriaca L., Desmodium canadense (L.) DC., Panicum virgatum L.) and two crop species (Raphanus sativus L., Solanum lycopersicum L.) in separate dose-response experiments under growth chamber conditions. Limited effects of REEs were found on seed germination and speed of germination. Effects on aboveground and belowground biomass were more pronounced, especially for the three native species, which were always more sensitive than the crop species tested. Inhibition concentrations (IC25 and IC50) causing 25 or 50% reductions in plant biomass respectively, were measured. For the native species, the majority of aboveground biomass IC25s (11 out of 18) fell within 100 to 300 mg REE/kg dry soil. In comparison to the native species, IC25s for the crops were always greater than 400 mg REE/kg, with the majority of results (seven out of 12) falling above 700 mg REE/kg. IC50s were often not detected for the crops. Root biomass of native species was also affected at lower doses than in crops. REE uptake by plants was higher in the belowground parts than in the above-ground plant tissues. Results also revealed that chloride may have contributed to the sensitivity of the native species, Desmodium canadense, one of the most sensitive species studied. Nevertheless, these results demonstrated that phytotoxicity may be a concern in contaminated areas.

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Section: Discussionmentioning

confidence: 52%

Uptake and Effects of Six Rare Earth Elements (REEs) on Selected Native and Crop Species Growing in Contaminated Soils

Carpenter¹,

Boutin²,

Allison³

et al. 2015

PLoS ONE

143

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“…The previous works have shown that lanthanum ion can affect the photosystems [24]. We revealed that the contents of chlorophylls and carotenoids changed after the treatments with La 3+ .…”

Section: An Interaction Betweenmentioning

confidence: 73%

Effects of La3+ on the Active Oxygen-Scavenging Enzyme Activities in Cucumber Seedling Leaves

Shi

Chen

Huang

2005

Russ J Plant Physiol

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The effects of La 3+ on the antioxidant enzyme activities and the relative indices of cellular damage in cucumber seedling leaves were studied. When cucumber seedlings were treated with low concentrations of LaCl 3 (0.002 and 0.02 mM), peroxidase (PO) activity increased, and catalase (CAT) activity was similar to that of control leaves at 0.002 mM La 3+ and increased at 0.02 mM La 3+ , whereas superoxide dismutase (SOD) activity did not change significantly. The increase in the contents of chlorophyll (including chlorophylls a and b ), carotenoids in parallel with the decrease in the level of malondialdehyde (MDA) suggested that low concentration of La 3+ promoted plant growth. However, except the increase in SOD activity at 2 mM La 3+ , CAT and PO activities and the contents of pigments decreased at high concentrations of La 3+ (0.2 and 2 mM), leading to the increase of MDA content and the inhibition of plant growth. It is suggested that lanthanum ion is involved in the regulation of active oxygen-scavenging enzyme activities during plant growth.

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Lanthanum chloride improves maize grain yield by promoting photosynthetic characteristics, antioxidants enzymes and endogenous hormone at reproductive stages

Cui

Kamran

Song

et al. 2019

Journal of Rare Earths

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The effect of lanthanide chloride on abscisic acid and electron-transport activity of some crops

Cited by 11 publications

References 10 publications

Uptake and Effects of Six Rare Earth Elements (REEs) on Selected Native and Crop Species Growing in Contaminated Soils

Uptake and Effects of Six Rare Earth Elements (REEs) on Selected Native and Crop Species Growing in Contaminated Soils

Effects of La3+ on the Active Oxygen-Scavenging Enzyme Activities in Cucumber Seedling Leaves

Lanthanum chloride improves maize grain yield by promoting photosynthetic characteristics, antioxidants enzymes and endogenous hormone at reproductive stages

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