Influence of low temperature on comparative arsenic accumulation and release by three Pteris hyperaccumulators

Farzana Rahman, Kazuki Sugawara, Shujun Wei, Yi Huang Takeshi Kohda, Mei Fang Chien, Chihiro Inoue

Research output: Contribution to journalArticlepeer-review

Abstract

Arsenic (As) hyperaccumulator Pteris ferns are renowned for their capacity to accumulate As and have been used to remediate As-contaminated environmental. However, there is less information on how they perform under low temperature though it is important for practical phytoremediation. The purpose of this study was to identify the effect of temperature on As accumulation by three As hyperaccumulators, Pteris multifida, Pteris cretica and Pteris vittata. Ferns were cultured with 5 mg/L As addition under 25 °C to 5 °C for 15 days. The results showed that dropping of temperatures reduced As accumulation by P. vittata moderately but not P. multifida and P. cretica until 10 °C. At 5 °C, all ferns discontinued As accumulation, and the morphology showed necrosis in P. vittata, wherein P. multifida and P. cretica kept healthy. The As distribution showed that As was mainly accumulated in fronds, while P. multifida stored partial As in its root. Both translocation factor and As efflux showed that temperate zone ferns manage As more strictly as compared to P. vittata. Our findings demonstrated that temperature should be considered when applying Pteris ferns for As phytoremediation, and P. multifida could be the most suitable fern for treating As-contaminated water in temperate zone area.

Original languageEnglish
Pages (from-to)1179-1188
Number of pages10
JournalJournal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume56
Issue number11
DOIs
Publication statusPublished - 2021

Keywords

  • Pteris cretica
  • Pteris multifida
  • Pteris vittata
  • Temperature effect
  • arsenic phytoremediation

ASJC Scopus subject areas

  • Environmental Engineering

Fingerprint

Dive into the research topics of 'Influence of low temperature on comparative arsenic accumulation and release by three Pteris hyperaccumulators'. Together they form a unique fingerprint.

Cite this