Combined acid rain and lanthanum pollution and its potential ecological risk for nitrogen assimilation in soybean seedling roots

Zhang, Fan; Cheng, Mengzhu; Sun, Zilong; Wang, Lihong; Zhou, Qing; Huang, Xiaohua

doi:10.1016/j.envpol.2017.08.037

Cited by 35 publications

(13 citation statements)

References 56 publications

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“…In addition, photosynthetic pigments in plants may be degraded under AR stress because of the disruption of chloroplasts and lowering of water potential in the cells, which further lead to closure of stomata and lower CO 2 assimilation, subsequently resulting in introverted cell division [17,63]. In Figure 1, the ultrastructure of a mesophyll cell and chloroplast in the midrib of tomato leaves, observed by transmission electron microscopy (TEM), showed asymmetrical size and shape of chloroplasts, starch grana and a recognizable cell wall without the perfect shape of a cell under the AR stress condition [57].…”

Section: Impacts Of Acid Rain On the Photosynthesis Potential In Plantsmentioning

confidence: 99%

Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

et al. 2021

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Air pollution has been a long-term problem, especially in urban areas, that eventually accelerates the formation of acid rain (AR), but recently it has emerged as a serious environmental issue worldwide owing to industrial and economic growth, and it is also considered a major abiotic stress to agriculture. Evidence showed that AR exerts harmful effects in plants, especially on growth, photosynthetic activities, antioxidant activities and molecular changes. Effectiveness of several bio-regulators has been tested so far to arbitrate various physiological, biochemical and molecular processes in plants under different diverse sorts of environmental stresses. In the current review, we showed that silicon (tetravalent metalloid and semi-conductor), glutathione (free thiol tripeptide) and melatonin (an indoleamine low molecular weight molecule) act as influential growth regulators, bio-stimulators and antioxidants, which improve plant growth potential, photosynthesis spontaneity, redox-balance and the antioxidant defense system through quenching of reactive oxygen species (ROS) directly and/or indirectly under AR stress conditions. However, earlier research findings, together with current progresses, would facilitate the future research advancements as well as the adoption of new approaches in attenuating the consequence of AR stress on crops, and might have prospective repercussions in escalating crop farming where AR is a restraining factor.

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Section: Impacts Of Acid Rain On the Photosynthesis Potential In Plantsmentioning

confidence: 99%

Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

et al. 2021

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“…The research of Agathokleous [105] revealed that more than 2400 scientific articles from the years 1900–2016 included one or more of keywords that were connected with hormesis, and unsurprisingly 91% of them have been published after the year of 2000. Most of the experiments are being conducted toward assessing the dose–response issues on pesticides, phytotoxins, UV, or ozone treatments, and their underlying mechanisms [106,107,108]. Nevertheless, the hormetic response has been also observed in plants that were exposed to low concentrations of non-essential metal ions (Cd, Pb, Cr), non-metallic trace elements (As, Se), representatives of the platinum group (palladium Pd, platinum Pt), or even rare earth elements (lanthanum La).…”

Section: Hormesis Effectmentioning

confidence: 99%

Dual Role of Metallic Trace Elements in Stress Biology—From Negative to Beneficial Impact on Plants

Muszyńska

Labudda

2019

IJMS

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Heavy metals are an interesting group of trace elements (TEs). Some of them are minutely required for normal plant growth and development, while others have unknown biological actions. They may cause injury when they are applied in an elevated concentration, regardless of the importance for the plant functioning. On the other hand, their application may help to alleviate various abiotic stresses. In this review, both the deleterious and beneficial effects of metallic trace elements from their uptake by roots and leaves, through toxicity, up to the regulation of physiological and molecular mechanisms that are associated with plant protection against stress conditions have been briefly discussed. We have highlighted the involvement of metallic ions in mitigating oxidative stress by the activation of various antioxidant enzymes and emphasized the phenomenon of low-dose stimulation that is caused by non-essential, potentially poisonous elements called hormesis, which is recently one of the most studied issues. Finally, we have described the evolutionary consequences of long-term exposure to metallic elements, resulting in the development of unique assemblages of vegetation, classified as metallophytes, which constitute excellent model systems for research on metal accumulation and tolerance. Taken together, the paper can provide a novel insight into the toxicity concept, since both dose- and genotype-dependent response to the presence of metallic trace elements has been comprehensively explained.

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“…Such antioxidant capacity of La 3+ has been shown in cut Easter lily flowers, by increasing the activity of peroxidase, ascorbate peroxidase, glutathione reductase and glutathione peroxidase, and antioxidant metabolites like reduced ascorbic acid and reduced glutathione, while decreasing the malondialdehyde and hydrogen peroxide contents compared to the control 22 . In soybean, combined treatment with pH 4.5 acid rain and 80 µM La 3+ promoted nitrogen assimilation synergistically 75 . Additionally, in faba (Vicia faba) seedlings under cadmium stress, the application of 2-120 mmol/L La 3+ reduced the activity of proteolytic enzymes, which implied reduction of denatured proteins 76 .…”

Section: Discussionmentioning

confidence: 98%

Lanthanum Prolongs Vase Life of Cut Tulip Flowers by Increasing Water Consumption and Concentrations of Sugars, Proteins and Chlorophylls

Gómez-Meriño

Ramírez-Martínez

Castillo-González

et al. 2020

Sci Rep

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Libia iris trejo-téllez 1* We evaluated the effect of separately adding two sources of lanthanum (La), LaCl 3 and La(NO 3) 3 × 6H 2 O at a concentration of 40 µM each, to the preservative solution of 15 cut tulip flower varieties. Ascorbic acid (AsA; 0.2 g/L) was used as a reference solution, while distilled water was used as control. The variety Laura Fygi recorded the longest vase life with 13 days. The highest water consumption per gram of stem fresh biomass weight (FBW) (2.5 mL) was observed in the variety Violet Beauty, whereas the lowest (1.098 mL) was recorded in Pink Impression. At the end of the vase life period, higher concentrations of total soluble sugars in petals and total soluble proteins in leaves were recorded in Latreated stems, compared to the AsA treatment and the control. Additionally, La(NO 3) 3 × 6H 2 o supply increased the fresh weight of stems in vase and prolonged vase life. Moreover, this treatment resulted in the highest foliar concentration of chlorophylls at the end of vase life. Therefore, La increases tulip flower vase life as a consequence of improving the concentrations of some vital biomolecules.

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Combined acid rain and lanthanum pollution and its potential ecological risk for nitrogen assimilation in soybean seedling roots

Cited by 35 publications

References 56 publications

Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

Physiological and Molecular Responses to Acid Rain Stress in Plants and the Impact of Melatonin, Glutathione and Silicon in the Amendment of Plant Acid Rain Stress

Dual Role of Metallic Trace Elements in Stress Biology—From Negative to Beneficial Impact on Plants

Lanthanum Prolongs Vase Life of Cut Tulip Flowers by Increasing Water Consumption and Concentrations of Sugars, Proteins and Chlorophylls

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