Metal Accumulation and Tolerance in <i>Artemisia indica</i> var. <i>maximowiczii</i> (Nakai) H. Hara. and <i>Fallopia sachalinensis</i> (F.Schmidt) Ronse Decr., a Naturally Growing Plant Species at Mine Site

For growing plants at mine sites, plant species that accumulate metals in tissues and are tolerant to high metal concentrations should be selected from the perspective of phytostabilization. However, the eco-chemical or elemental information of the plant species at the mine sites is limited. The pur...

Full description

Bibliographic Details
Main Authors: Xingyan Lu, Keiko Yamaji, Toshikatsu Haruma, Mitsuki Yachi, Kohei Doyama, Shingo Tomiyama
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/11/8/806
Description
Summary:For growing plants at mine sites, plant species that accumulate metals in tissues and are tolerant to high metal concentrations should be selected from the perspective of phytostabilization. However, the eco-chemical or elemental information of the plant species at the mine sites is limited. The purpose of this study was to identify plants that can adapt to natural growth at mine sites, via: (1) vegetation survey, (2) elemental analysis in soil and plants, and (3) detoxicant detection in plant cells. Our vegetation survey indicated that plants growing at our study site are consistent with plant species confirmed at other mine sites in previous reports. <i>A. indica</i> var. <i>maximowiczii</i> and <i>F. sachalinensis</i>, present at the mine site, highly accumulated Fe, Al, and Cu in the roots, indicating their metal tolerance. Furthermore, <i>A. indica</i> var. <i>maximowiczii</i> produced detoxicants such as chlorogenic acid and 3,5-dicaffeoylquinic acid in the roots, which exhibited high antioxidative activity that would play an important role in metal tolerance in <i>A. indica</i> var. <i>maximowiczii</i>. This study will be effective in providing fundamental information on phytostabilization at mine sites.
ISSN:2075-163X