Jump to main content
Jump to site search

Issue 12, 2013
Previous Article Next Article

Bioaccumulation and degradation of atrazine in several Chinese ryegrass genotypes

Author affiliations

Abstract

Soil pollution with herbicides is a global problem. Before phytoremediation technology is developed for the plant-based clean-up of polluted soils, investigation of potential plants that can be used to accumulate and degrade herbicides is a critical step. In this study, three selected genotypes of ryegrass were comprehensively analyzed with regard to the atrazine accumulation, degradation and toxicological response. Under the conditions of soil with 0.8 mg kg−1 atrazine, the maximum value for atrazine accumulation was 2.70 mg kg−1 in shoots and 0.58 mg kg−1 in roots. The residue of atrazine in soil with ryegrass cultivation was much lower than that in soil without ryegrass cultivation. Also, the content of atrazine residues in the rhizosphere was significantly lower than that in the non-rhizosphere soil. Activities of several enzymes (urease, invertase, polyphenol oxidase, acid phosphatase and alkaline phosphatase) in soil were assayed. These enzymes were depressed by atrazine but activated by ryegrass cultivation, even in the presence of atrazine. Finally, comparative studies have been conducted on the ryegrass genotypes in response to atrazine. They showed different capacities of degradation and bioaccumulation of atrazine. One of the grass cultivars Changjiang II (CJ) had better growth and higher levels of chlorophyll, but displayed less oxidative injury than two others, Abode (AB) and Jiewei (JW), under atrazine exposure.

Graphical abstract: Bioaccumulation and degradation of atrazine in several Chinese ryegrass genotypes

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Jul 2013, accepted on 10 Oct 2013 and first published on 10 Oct 2013


Article type: Paper
DOI: 10.1039/C3EM00375B
Citation: Environ. Sci.: Processes Impacts, 2013,15, 2338-2344
  •   Request permissions

    Bioaccumulation and degradation of atrazine in several Chinese ryegrass genotypes

    Y. Sui and H. Yang, Environ. Sci.: Processes Impacts, 2013, 15, 2338
    DOI: 10.1039/C3EM00375B

Search articles by author

Spotlight

Advertisements