Antimony uptake, translocation and speciation in rice plants exposed to antimonite and antimonate

Ren, Jinghua; Lena, Q.; Sun, Hongjie; Cai, Fei; Luo, Jun

doi:10.1016/j.scitotenv.2013.12.103

Cited by 124 publications

(50 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different plant speciations of plants had different preferences to the two Sb oxidation states. Lolium perenne L., Triticum astevium, and Oryza sativa L. preferred SbIII, whereas Holcus lanatus and Secale cereale preferred SbV (Huang et al 2012, Ren et al 2014, Shtangeeva et al 2012a, Wan et al 2013. The different SbIII and SbV uptake mechanisms still warrant further study.…”

Section: Discussionmentioning

confidence: 99%

“…Plants were harvested and washed with tap water. Roots were immersed in an icecold solution (4°C) containing 1 mM K 2 HPO 4 , 5 mM metastable equilibrium solubility, and 0.5 mM Ca(NO 3 ) 2 for 20 min to remove apoplastic As and Sb (Ren et al 2014) before the plant materials were rinsed thrice with deionized water. Each plant was divided into pinnae and roots.…”

Section: Plant Cultivationmentioning

confidence: 99%

See 1 more Smart Citation

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

Wan

Lei

Chen

2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

Arsenic (As) and antimony (Sb) are chemical analogs that display similar characteristics in the environment. The As hyperaccumulator Pteris vittata L. is a potential AsSb co-accumulating species. However, when this plant is exposed to different As and Sb speciation, the associated accumulating mechanisms and subsequent assimilation processes of As and Sb remain unclear. A 2-week hydroponic experiment was conducted by exposing P. vittata to single AsIII, AsV, SbIII, and SbV or the co-existence of AsIII and SbIII and AsV and SbV. P. vittata could co-accumulate As and Sb in the pinna (>1000 mg kg −1 ) with high translocation (>1) of As and Sb from the root to the pinna. P. vittata displayed apparent preference to the trivalent speciation of As and Sb than to the pentavalent speciation. Under the single exposure of AsIII or SbIII, the pinna concentration of As and Sb was 84 and 765 % higher than that under the single exposure of AsV or SbV, respectively. Despite the provided As speciation, the main speciation of As in the root was AsV, whereas the main speciation of As in the pinna was AsIII. The Sb in the roots comprised SbV and SbIII when exposed to SbV but was exclusively SbIII when exposed to SbIII. The Sb in the pinna was a mixture of SbV and SbIII regardless of the provided Sb speciation. Compared with the single exposure of As, the coexistence of As and Sb increased the As concentration in the pinna of P. vittata by 50-66 %, accompanied by a significant increase in the AsIII percentage in the root. Compared with the single exposure of Sb, the co-existence of Sb and As also increased the Sb concentration in the pinna by 51-100 %, but no significant change in Sb speciation was found in P. vittata.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Plant Cultivationmentioning

confidence: 99%

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

Wan

Lei

Chen

2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…This has 254 already been reported in previous studies on other plants and seems to be a common feature of non-255 hyperaccumulator plants. Ren et al [10] reported that the highest amount of Sb, found in exposed rice, 256 was in the roots. Furthermore, our results show that Sb(III)-treated plants took up 100 times more Sb in 257 the roots than Sb(V)-or TMSb-treated plants as shown in Figure 5a and Table 1 (1029 ± 191.7 mg.kg -1 for 258 Sb(III) vs. 9.9 ± 1.5 mg.kg -1 for Sb(V) and 9.0 ± 2.3 mg.kg -1 for TMSb).…”

Section: Growth Experiments 245mentioning

confidence: 98%

“…Furthermore, our results show that Sb(III)-treated plants took up 100 times more Sb in 257 the roots than Sb(V)-or TMSb-treated plants as shown in Figure 5a and Table 1 (1029 ± 191.7 mg.kg -1 for 258 Sb(III) vs. 9.9 ± 1.5 mg.kg -1 for Sb(V) and 9.0 ± 2.3 mg.kg -1 for TMSb). Several studies found that Sb(III)-259 exposed rice took up more Sb than Sb(V)-exposed rice [10,11,35] . The most likely explanation for the higher 260 uptake of Sb(III) than of Sb(V) is that Sb(III) enters microorganisms and plants through aquaglyceroporins 261 due to its similarity with glycerol [36,37] , while for Sb(V) and TMSb up to now no transporters are known [38] .…”

Section: Growth Experiments 245mentioning

confidence: 99%

“…Otherwise, PCs bind with metals and prevent them from being 48 transported to the shoots or interacting with the plant metabolism. Recent work showed that in rice 49 (Oryza sativa L.), that was grown in 1 mg.L -1 of Sb(III) or Sb(V), most of the Sb remained in the roots due 50 to the presence of the iron plaque, although a contribution of PCs to the immobilisation of Sb in the 51 roots cannot be excluded [10][11][12] . The same authors reported that more Sb was found in all parts of the 52 plant when Sb(III) was used and that Sb(V) was the dominant species in roots and shoots of rice.…”

Section: Introduction 33mentioning

confidence: 99%

See 1 more Smart Citation

A novel method to determine trimethylantimony concentrations in plant tissue

Mestrot

Tandy

et al. 2016

Environ. Chem.

View full text Add to dashboard Cite

Environmental contextAntimony enters the soil mostly through mining and shooting activities and can thereafter be taken up by plants. In the soil, antimony may undergo several transformations such as biomethylation, leading to the formation of trimethylantimony. Here, we measured for the first time the uptake and translocation of trimethylantimony in a plant using a new extraction and analysis method. AbstractAntimony (Sb) is a relevant pollutant that can be found in elevated concentrations in soils near Sb mines and at shooting ranges. In soils, Sb occurs as trivalent Sb, SbIII, pentavalent Sb, SbV, or trimethylantimony, TMSb ((CH3)3SbO), the latter being the result of microbial biomethylation. It is important to understand the transfer of Sb species from soil to plants to assess the role of Sb in the food chain. However, this research has historically been hampered by the lack of suitable extraction and analytical methods. In this study, we validated an efficient and reliable extraction technique using oxalic acid and ascorbic acid (72.6±1.3% of Sb extracted) as well as a high-pressure liquid chromatography–inductively coupled plasma mass spectrometry (HPLC-ICP-MS) speciation analysis method to assess the uptake of TMSb in ryegrass (Lolium perenne L.), a common pasture plant, in a hydroponics experiment. Our results show that TMSb and SbIII are not converted to other species during extraction and that TMSb is taken up by ryegrass roots and translocated to the shoots. Our study also points at specific methylation–demethylation mechanisms occurring in the plant. Moreover, an unknown Sb species was found in the shoots of TMSb-treated plants, highlighting the need for further research. These new extraction and speciation methods will enable researchers to study the soil–plant transfer of organo-Sb compounds in a reliable and consistent manner.

show abstract

Antimony

Bourgeois¹

2015

Hamilton &Amp; Hardy's Industrial Toxicology

View full text Add to dashboard Cite

Antimony uptake, translocation and speciation in rice plants exposed to antimonite and antimonate

Cited by 124 publications

References 32 publications

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

A novel method to determine trimethylantimony concentrations in plant tissue

Antimony

Contact Info

Product

Resources

About