• Keine Ergebnisse gefunden

Differential Induction of Glutathione Transferases and Glucosyltransferases in Wheat, Maize and Arabidopsis thaliana by Herbicide Safeners

N/A
N/A
Info
Herunterladen
Protected

Academic year: 2022

Aktie "Differential Induction of Glutathione Transferases and Glucosyltransferases in Wheat, Maize and Arabidopsis thaliana by Herbicide Safeners"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Jetzt herunterladen ( 1 Seite )

Volltext

(1)

Differential Induction of Glutathione Transferases and Glucosyltransferases in Wheat, Maize and Arabidopsis thaliana by Herbicide Safeners

Robert Edwards

a,*

, Daniele Del Buono

b

, Michael Fordham

a

, Mark Skipsey

a

, Melissa Brazier

a

, David P.Dixon

a

, and Ian Cummins

a

a School of Biological & Biomedical Sciences, University of Durham, Durham, DH1 3LE UK.

Fax: 00 44 19 13 34 12 01. E-mail: Robert.Edwards@durham.ac.uk

b Dipartimento di Scienze Agroambientali e della Produzione Vegetale, Universita` degli Studi di Perugia, Borgo XX Giugno 72, 06121, Perugia, Italy

* Author for correspondence and reprint requests Z.Naturforsch.60 c, 307Ð316 (2005)

By learning lessons from weed science we have adopted three approaches to make plants more effective in phytoremediation:

1.The application of functional genomics to identify key components involved in the detoxi- fication of, or tolerance to, xenobiotics for use in subsequent genetic engineering/breeding programmes.

2.The rational metabolic engineering of plants through the use of forced evolution of protec- tive enzymes, or alternatively transgenesis of detoxification pathways.

3.The use of chemical treatments which protect plants from herbicide injury.

In this paper we examine the regulation of the xenome by herbicide safeners, which are chemicals widely used in crop protection due to their ability to enhance herbicide selectivity in cereals.We demonstrate that these chemicals act to enhance two major groups of phase 2 detoxification enzymes, notably the glutathione transferases and glucosyltransferases, in both cereals and the model plantArabidopsis thaliana, with the safeners acting in a chemical- and species-specific manner.Our results demonstrate that by choosing the right combination of safener and plant it should be possible to enhance the tolerance of diverse plants to a wide range of xenobiotics including pollutants.

Key words:Herbicide Safeners, Phase 2 Detoxification, Phytoremediation

Referenzen

Jetzt herunterladen ( PDF - 1 Seite - 24.64 KB )

ÄHNLICHE DOKUMENTE

Introduction The purpose of this presentation is to examine the elements of a ceasefire agreement which would serve to facilitate the implementation and sustainability of such agreements.

At a presentation to the Sri Lankan Staff College senior officers in the Sri Lankan Army belittled the complaints machinery provided for in that peace agreement

The inhibition of NF-kappaB activation pathways and the induction of apoptosis by dithiocarbamates in T cells are blocked by the glutathione precursor N-acetyl-L-cysteine

The effects of both compounds on basal NF-B transcriptional activity in Jurkat T cells was identical to that observed in Tpi T cells, with CAT activity reduced by 57% in the presence

Environmental Behavior of the Chiral Herbicide Haloxyfop. 1. Rapid and Preferential Interconversion of the Enantiomers in Soil

We studied the ester cleavage of haloxyfop- methyl and further degradation and chiral inversion of the acid enantiomers in three di ff erent soils using enantioselective

Verbs which are followed by to

B) Put the words in the correct order to make questions. Then answer the questions. C) Match the comments on the left with the responses on the right. Bridget lives in the flat.

37 Differential induction of resistance to leaf rust in wheat cultivars by root-colonizing bacteria

The resistances response depends upon plant variety, pathogen virulence, environmental conditions, growth stage of the plant and interactions with other organisms such as

Tolerance to, and Uptake and Degradation of 2,4,6-Trinitrotoluene (TNT) are Enhanced by the Expression of a Bacterial Nitroreductase Gene in Arabidopsis thaliana

HPLC analysis showed that the peak due to TNT taken up into plant body was much smaller in the transgenic plants as compared with that ofthe wild type, and that a number

Tolerance to, and Uptake and Degradation of 2,4,6-Trinitrotoluene (TNT) are Enhanced by the Expression of a Bacterial Nitroreductase Gene in Arabidopsis thaliana

In the present study, we have provided evi- dences that suggest that the rate of uptake of TNT by the transgenic Tr1 line of Arabidopsis thaliana (20 µ mol d Ð1 g Ð1 fresh weight,

Differential Induction of Glutathione Transferases and Glucosyltransferases in Wheat, Maize and Arabidopsis thaliana by Herbicide Safeners

We demonstrate that these chemicals act to enhance two major groups of phase 2 detoxification enzymes, notably the glutathione transferases and glucosyltransferases, in both cereals