Work

Effect of Glomus mosseae on accumulation efficiency, hazard index and antioxidant defense mechanisms in tomato under metal(loid) Stress

Year: 2018

Type: article

Abstract: In the present study, the phytoremedation potential along with growth, physiological and biochemical response of tomato (Solanum lycopersicum) was assessed under heavy metal(loid) (HM) and arbuscular mycorrhizal fungus (AMF) amendment. Effect of AMF on uptake and accumulation of metal(loid)s was assessed and accumulation characteristics were expressed in terms of bioabsorption coefficient (BAC), bioconcentration factor (BCF), translocation factor (TLF) and transfer factor (TF). Results showed that AMF-inoculated plants showed not only a better growth, chlorophyll content, strengthened non-enzymatic and enzymatic defense mechanism, but also accumulated higher concentration of metal(loid)s. The correlation between biochemical and physiological parameters was significant at 0.01 level. A significant difference (p ≤ 0.001) in antioxidant enzyme activity was found on increasing metal(loid) dose and application of AMF. The accumulation of Cd and Pb in edible part exceeded the chronic reference dose stated by USEPA. The target hazard quotient (THQ) was >1 for Cd and Pb, whereas <1 for As. The study shows that tomato has good potential as Cd and Pb phytoremediator, hence must not be consumed when grown on Cd or Pb contaminated sites.

Source: International Journal of Phytoremediation

DOI: 10.1080/15226514.2018.1438360

Authors: Ritu Chaturvedi, Paulo J.C. Favas, João Pratas, Mayank Varun, Manoj S. Paul

Institutions: St. John's College, Agra, University of Trás-os-Montes and Alto Douro, University of Coimbra

Language: English

Topic: Heavy metals in environment

Subfield: Pollution

Field: Environmental Science

Domain: Physical Sciences

SDG: Zero hunger

Open Access status: green

Funders: Council of Scientific and Industrial Research, India, University Grants Commission, Fundação para a Ciência e a Tecnologia