First evidence on different transportation modes of arsenic and phosphorus in arsenic hyperaccumulator Pteris vittata

Lei, Mei; Wan, Xiaoming; Huang, Zijun; Chen, Tongbin; Li, Xuewen; Liu, Ying-ru

doi:10.1016/j.envpol.2011.09.017

Cited by 67 publications

(37 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Arsenic concentration in shoot differs from plant, genotype to genotype and even species to species. The results of the present study were in contrast with others as reported by [30] who found As concentrations in rice seedlings differed among 20 genotypes. These differences may be related to the ability of As(V) uptake, but not related to As(III) efflux since root As concentrations of wheat seedlings were positively correlated (not significant) to As(V) uptake, and significantly (P < 0.05) negatively correlated with relative As(III) efflux.…”

Section: Effect Of Si and As Application On Arsenic Concentration In contrasting

confidence: 57%

Silicon Mediated Arsenic Reduction in Rice by Limiting Its Uptake

Raza¹,

Ullah²,

Ahmad³

et al. 2016

View full text Add to dashboard Cite

This study was planned to examine the effects of exogenous silicon supply on growth parameters and arsenic accumulation level in rice. The experiment was conducted in the wire house of Saline Agriculture Research Centre, Institute of Soil and Environmental Science, University of Agriculture Faisalabad. The study was comprised of treatments viz: control; (100 µM Arsenic); (200 µM Arsenic); (5 mM Silicon); (5 mM Silicon + 100 µM Arsenic) and (5 mM Silicon + 200 µM Arsenic). Results revealed that maximum shoot fresh weight, shoot dry weight, root fresh weight and root dry weight were observed in (5 mM Si) solution. In the same way, maximum number of tillers was also recorded in (5 mM Si) solution; while silicon application failed to alleviate arsenic concentration of rice genotype.

show abstract

Section: Effect Of Si and As Application On Arsenic Concentration In contrasting

confidence: 57%

Silicon Mediated Arsenic Reduction in Rice by Limiting Its Uptake

Raza¹,

Ullah²,

Ahmad³

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Lei et al (2012) suggested that before entering into the endodermis of P. vittata rhizoids, As utilizes the phosphate pathway, while after that, phosphate pathway no longer works for As, which means that the transport of As after the endodermis requires another carrier. Based on results from the present study, this carrier may be closely related to water uptake.…”

Section: Discussionmentioning

confidence: 99%

“…The electron storage ring was operated at 2.2 GeV with the current ranging between 59 and 114 mA. Detailed procedures for the measurement and analysis are given by Lei et al (2012).…”

Section: Plant Culturementioning

confidence: 99%

Role of transpiration in arsenic accumulation of hyperaccumulator Pteris vittata L.

Wan

Lei

Chen

et al. 2015

Environ Sci Pollut Res

Self Cite

View full text Add to dashboard Cite

A b s t r a c t M e c h a n i s m s o f P t e r i s v i t t a t a L . t o hyperaccumulate arsenic (As), especially the efficient translocation of As from rhizoids to fronds, are not clear yet. The present study aims to investigate the role of transpiration in the accumulation of As from the aspects of transpiration regulation and ecotypic difference. Results showed that As accumulation of P. vittata increased proportionally with an increase in the As exposure concentration. Lowering the transpiration rate by 28∼67 % decreased the shoot As concentration by 19∼56 %. Comparison of As distribution under normal treatment and shade treatment indicated that transpiration determines the distribution pattern of As in pinnae. In terms of the ecotypic difference, the P. vittata ecotype from moister and warmer habitat had 40 % higher transpiration and correspondingly 40 % higher shoot As concentration than the ecotype from drier and cooler habitat. Results disclosed that transpiration is the main driver for P. vittata to accumulate and redistribute As in pinnae.

show abstract

“…External standards were measured to verify the accuracy of XRF analysis. [23] For the XANES measurements, chemicals with a known composition of As(III) and As(V) were measured during every sampling cycle, with the recoveries between 90% and 110%. SPSS 17.0 was used for the statistical analysis of data.…”

Section: Quality Control and Statisticsmentioning

confidence: 99%

CHARACTERIZATION OF ARSENIC UPTAKE IN LIVINGPTERIS VITTATAL.

Wan

Lei

Zhou

et al. 2014

Instrumentation Science & Technology

Self Cite

View full text Add to dashboard Cite

& Phytoremediation of arsenic contamination using the hyperaccumulator Pteris vittata is an active area of research. However, the mechanism for the uptake of arsenic in P. vittata remains unclear, due to the absence of methods to monitor this process. This study utilized synchrotron radiation X-ray fluorescence (XRF) spectroscopy and X-ray absorption near-edge structure (XANES) to continuously observe in situ arsenic in living P. vittata. The results showed that the reduction of arsenic(V) to arsenic(III) occurred simultaneously with an increase in frond arsenic, suggesting the reduction affected arsenic uptake. In situ XRF measurements of living P. vittata accurately characterized arsenic uptake but in situ XANES could not be used on live plants without using methods to prevent radiation damage. A novel approach is reported to investigate the changes of elements in plants.

show abstract

First evidence on different transportation modes of arsenic and phosphorus in arsenic hyperaccumulator Pteris vittata

Cited by 67 publications

References 41 publications

Silicon Mediated Arsenic Reduction in Rice by Limiting Its Uptake

Silicon Mediated Arsenic Reduction in Rice by Limiting Its Uptake

Role of transpiration in arsenic accumulation of hyperaccumulator Pteris vittata L.

CHARACTERIZATION OF ARSENIC UPTAKE IN LIVINGPTERIS VITTATAL.

Contact Info

Product

Resources

About