{"title":"Calcium acetate enhances both drought tolerance and arsenic accumulation in Pteris vittata","authors":"Guosheng Wang, Zhen Wang, Fei Zhao, Junxiu Chen, Yanshan Chen","doi":"10.1080/26395940.2022.2161947","DOIUrl":null,"url":null,"abstract":"ABSTRACT Pteris vittata, the first discovered arsenic (As) hyperaccumulator, has great potential in As-contaminated soil remediation. However, as a fern, it is sensitive to water deficiency. In this study, acetic acid and calcium acetate were added to As-contaminated soils in pots to investigate their effects on the drought tolerance, growth and As remediation efficiency of P. vittata. Comparing with the plants pretreated with municipal drinking water, plants pretreated with 20 mM acetic acid or calcium acetate solutions exhibited strikingly increased drought tolerance. In addition, 20 mM calcium acetate significantly increased shoot As concentration by 165% and the total shoot As amount by 55.1%, probably due to the elevated soil pH and a subsequent 14.2% increase of soil available As. Taken together, this study demonstrates that the appropriate application of calcium acetate can enhance both drought tolerance and As accumulation in P. vittata, which is of significance for the phytoremediation.","PeriodicalId":11785,"journal":{"name":"Environmental Pollutants and Bioavailability","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Pollutants and Bioavailability","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/26395940.2022.2161947","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 2
Abstract
ABSTRACT Pteris vittata, the first discovered arsenic (As) hyperaccumulator, has great potential in As-contaminated soil remediation. However, as a fern, it is sensitive to water deficiency. In this study, acetic acid and calcium acetate were added to As-contaminated soils in pots to investigate their effects on the drought tolerance, growth and As remediation efficiency of P. vittata. Comparing with the plants pretreated with municipal drinking water, plants pretreated with 20 mM acetic acid or calcium acetate solutions exhibited strikingly increased drought tolerance. In addition, 20 mM calcium acetate significantly increased shoot As concentration by 165% and the total shoot As amount by 55.1%, probably due to the elevated soil pH and a subsequent 14.2% increase of soil available As. Taken together, this study demonstrates that the appropriate application of calcium acetate can enhance both drought tolerance and As accumulation in P. vittata, which is of significance for the phytoremediation.
期刊介绍：
Environmental Pollutants & Bioavailability is a peer-reviewed open access forum for insights on the chemical aspects of pollutants in the environment and biota, and their impacts on the uptake of the substances by living organisms.
Topics include the occurrence, distribution, transport, transformation, transfer, fate, and effects of environmental pollutants, as well as their impact on living organisms. Substances of interests include heavy metals, persistent organic pollutants, and emerging contaminants, such as engineered nanomaterials, as well as pharmaceuticals and personal-care products as pollutants.
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