ArticlePloS one2020
Lanthanum and abscisic acid coregulate chlorophyll production of seedling in switchgrass.
Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 20 citations in OpenAlex.
- Influence of the Hybrid Compound La(NOPlants (Basel, Switzerland) · 2026Article
- Genomic and Phytochemical Diversity Across a Collection of Snake Melon Landraces.Plants (Basel, Switzerland) · 2025Article
- Research potential and mechanism of rare earth elements promoting cadmium remediation efficiency in hyperaccumulator plants.Frontiers in plant science · 2025Article
- The effect of foliar spraying of some micronutrients and lanthanum on the morphological and physiological characteristics of summer savory (Satureja hortensis L.) under hydroponic and soil conditions.BMC plant biology · 2024Article
- Rare earth metallic elements in plants: assessing benefits, risks and mitigating strategies.Plant cell reports · 2024Review
- Experimental and Theoretical Study of the Effects of Rare Earth Elements on Growth and Chlorophyll of Alfalfa (Frontiers in plant science · 2021Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
The rare earth element lanthanum (La) has been proven to be beneficial for plant growth with a low concentration, and abscisic acid (ABA) which is a plant hormone also can regulate plant growth. In the present study, we investigated the germination and seedling growth of switchgrass (Panicum virgatum L.) under La (10 μM), ABA (10 μM) and La + ABA treatments. The results showed that La, ABA and La + ABA treatments could not significantly affect the germination and shoot length as compared to the control (P>0.05). However, La treatment increased the root activity and chlorophyll content, and ABA treatment enhanced root length and root activity (P<0.05). La + ABA treatments demonstrated that La could not significantly alleviate the promotion of ABA in root length, while ABA reversed the increase of chlorophyll content caused by La. The coregulation of La and ABA on chlorophyll content was further explored by in vitro experiments and quantum chemical calculations. In vitro experiments revealed that La, ABA, and La + ABA treatments reduced the absorbance of chlorophyll, and quantum chemical calculations indicated that the reduction of absorbance was caused by the reactions between La, ABA and chlorophyll. In vivo and in vitro experiments, together with quantum chemical calculations, demonstrated that both ABA and La could stimulate the production of chlorophyll, while they also could react with chlorophyll to produce La-monochlorophyll, La-bischlorophyll, and ABA adsorbed chlorophyll, which had lower absorbance. La + ABA treatment significantly decreased the chlorophyll content in vivo. This phenomenon was due to the fact that La and ABA formed LaABA compound, which markedly reduced the concentrations of ABA and La, and the effect of promoting chlorophyll production was overcome by the effect of reducing chlorophyll absorbance.
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