Roles of root cell wall components and root plaques in regulating elemental uptake in rice subjected to selenite and different speciation of antimony

Liu, Yang; Lv, Haiqin; Yang, Nan; Li, YuanPing; Liu, Bixiu; Rensing, Christopher; Dai, Jiaxin; Fekih, Ibtissem Ben; Wang, Lizhen; Mazhar, Sohaib H.; Bello, Suleiman Kehinde; Xu, Jin; Su, JunMing; Zhang, RuiRui; Wang, RenJie; Fan, Zhilong; Feng, Renwei

doi:10.1016/j.envexpbot.2019.04.005

Cited by 46 publications

(4 citation statements)

References 55 publications

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“…The above results further questioned the roles of Fe/Mn plaques acting as and it was speculated that their roles acting as a barrier should be condition-dependent, such as dose-dependent (Ren et al, 2014;Cui et al, 2015) and speciation-dependent . Here, the Fe/Mn plaques will play a storage role for most elements, because (1) the unchanged available concentration (Table 1) and unregular changes of As concentration in the soil solution (Figure 1) cannot explain the significantly enhanced As accumulation in the most tissues of this rice plant (Figure (2) exogenous Fe generally enhanced concentrations of Mg, K, and Zn in root plaques, and K, Ca, Mn, and Zn in roots; and (3) the essential metal elements in of this rice plant were much lower than that in the roots of normal growth rice plant in the study of Liu et al (2019), especially for Mg, K, Ca, Mn, and Zn. Therefore, we speculated that when the concentrations of essential metal elements in soils are Fe/Mn plaques will accumulate these elements to normal growth of plants (Supplementary Table S1).…”

Section: Roles Of Fe/mn Plaques In Constraining Sb As and CD Might Be...mentioning

confidence: 89%

Risks for Using FeCl3 Under a Submerged Condition, and Different Water Management to Reduce Uptake of Antimony and Cadmium in a Rice Plant

Yang

Fan

et al. 2021

Front. Environ. Sci.

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Soil pollution by multiple metal(loid)s is a common problem, and it is not easy to synchronously reduce their uptake in crops. Compounds containing iron (Fe) are often used to efficiently remediate soil metal(loid) pollution; however, its associated risks did not receive much attention especially under unsuitable soil water conditions. Pot experiments were set up using an antimony (Sb) and cadmium (Cd) co-contaminated soil treated with a continued submergence condition plus 5, 10, or 20 mg kg−1 FeCl3 (Experiment I), or treated with different water management including submergence, intermittent irrigation, and dry farming (Experiment II). Our results showed that the continued submergence resulted in excessive accumulation of arsenic (As) in different tissues of rice plants even if the soil As background concentration is low. High soil moisture content increased the available concentrations of Sb and As, but reduced that of Cd in rhizosphere soils, which was in line with their concentrations in different tissues of rice plants (Experiment II). Under a continued submergence condition, FeCl3 significantly stimulated As concentration in the shoots, roots (excluded Fe20 treatment), and husks, but reduced it in the grains. FeCl3 reduced Sb concentration only in the roots and grains, and reduced Cd concentration only in the husks, suggesting a limited efficiency of FeCl3 to reduce Cd uptake under a submergence condition. In this study, the dynamic changes of As, Sb, and Cd concentrations in soil solution, their available concentrations in rhizosphere soils, their accumulation in root iron/manganese plaques, and the relationships among the above parameters were also discussed. We suggested that if FeCl3 would be used to remediate the contaminated soils by Sb and Cd, dry farming for a short time is needed to avoid As accumulation, and intermittent irrigation is a potential choice to avoid the excessive accumulation of As, Sb, and Cd in the edible parts of rice plants.

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Section: Roles Of Fe/mn Plaques In Constraining Sb As and CD Might Be...mentioning

confidence: 89%

Risks for Using FeCl3 Under a Submerged Condition, and Different Water Management to Reduce Uptake of Antimony and Cadmium in a Rice Plant

Yang

Fan

et al. 2021

Front. Environ. Sci.

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“…Cd pollution reduced, whereas Se application increased the abundance of Fibrobacteres in soil (Figures 4A, 6A), thereby improving plant growth. The genus Sphingomonas has a strong metabolic capacity for aromatic compounds (Liu et al, 2019). The genus Nitrosospira plays a role in biological nitrification in the rhizosphere soil (Lin et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Comparative physiological and soil microbial community structural analysis revealed that selenium alleviates cadmium stress in Perilla frutescens

Yang

Liu²,

Ma³

et al. 2022

Front. Plant Sci.

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Cadmium (Cd) toxicity not only affects plant growth and development, but also affects human health through the food chain. Several studies have demonstrated that Selenium (Se) alleviates Cd stress in plants; however, whether and how Se-alleviated Cd stress by regulating the structure of soil microbial community remain largely unclear. Here, we investigated the alleviating effects of exogenous applied Se (foliar spraying or root application) on plant growth under Cd stress in perilla (Perilla frutescens L.) by measuring the biomass, photosynthetic fluorescence parameters, root cell wall components and soil microbial community structure and diversity. Under Cd stress, perilla seedlings supplemented with Se increased chlorophyll content. Foliar spraying Se increased the levels of relative chlorophyll content (ΦII), photosynthetic system II (ΦPSII) and electron transport rate (ETR) in perilla leaves under Cd stress; while, root application of Se increased the levels of photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), water use efficiency (WUE) and stomatal limitation value (Ls) under Cd stress. Compared with Cd toxicity alone, root application of Se increased the contents of hemicellulosic 1 and hemicellulosic 2 in the cell wall of perilla roots. Cd toxicity or root application of Se did not affect soil bacterial community diversity. Root application of Se increased the relative abundance of Proteobacteria, Bacteroidetes, Fibrobacteres, Sphingomonas and Nitrosospira in Cd-contaminated soil, and thereby improving soil microbial community structure, finally promoting the growth of perilla seedlings.

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“…Se also regulates the expression of genes related to antioxidant enzymes. In mustard, Se affects the expression of genes encoding antioxidant enzymes (SOD, POD, CAT, GR, and GST-1) in mustard and increases the concentrations of some components in the cell wall (such as pectin, lignin, and hemicelluloses) [ 139 , 140 ]. It increases the thickness of the cell wall by regulating the expression of genes related to lignin synthesis (OsPAL, OsCoMT, and Os4CL3) [ 141 ], thereby stimulating the accumulation of metal(loid)s in the cell wall and inhibiting the transfer of heavy metals in plants [ 142 , 143 ].…”

Section: Se and Stresses In Plantsmentioning

confidence: 99%

Selenium Regulates Antioxidant, Photosynthesis, and Cell Permeability in Plants under Various Abiotic Stresses: A Review

Liu

Xiao

Qiu

et al. 2022

Plants

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Plant growth is affected by various abiotic stresses, including water, temperature, light, salt, and heavy metals. Selenium (Se) is not an essential nutrient for plants but plays important roles in alleviating the abiotic stresses suffered by plants. This article summarizes the Se uptake and metabolic processes in plants and the functions of Se in response to water, temperature, light, salt, and heavy metal stresses in plants. Se promotes the uptake of beneficial substances, maintains the stability of plasma membranes, and enhances the activity of various antioxidant enzymes, thus alleviating adverse effects in plants under abiotic stresses. Future research directions on the relationship between Se and abiotic stresses in plants are proposed. This article will further deepen our understanding of the relationship between Se and plants.

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Roles of root cell wall components and root plaques in regulating elemental uptake in rice subjected to selenite and different speciation of antimony

Cited by 46 publications

References 55 publications

Risks for Using FeCl3 Under a Submerged Condition, and Different Water Management to Reduce Uptake of Antimony and Cadmium in a Rice Plant

Risks for Using FeCl3 Under a Submerged Condition, and Different Water Management to Reduce Uptake of Antimony and Cadmium in a Rice Plant

Comparative physiological and soil microbial community structural analysis revealed that selenium alleviates cadmium stress in Perilla frutescens

Selenium Regulates Antioxidant, Photosynthesis, and Cell Permeability in Plants under Various Abiotic Stresses: A Review

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