Combined effect of water stress and infection with the necrotrophic fungal pathogen Drechslera tritici-repentis on growth and antioxidant activity in wheat

Combined effect of water stress and infection with the necrotrophic fungal pathogen Drechslera tritici-repentis on growth and antioxidant activity in wheat

Treatment with various concentrations (0, 5, 15 and 20%) of PEG was used to simulate water stress, followed by inoculation with Drechslera tritici-repentis (DTR) at two different points of time (6 and 72 h after the PEG treatment) in two DTR resistant (M-3 and Mv Magvas) and two sensitive (Bezostaya...

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Bibliographic Details
Published in:Cereal research communications Vol. 36; no. 1; pp. 53 - 64
Main Authors: Janda, T, M. CséplÅ, Cs. Németh, Gy. Vida, M. Pogány, G. Szalai, O. Veisz
Format: Journal Article
Language:English
Published: Cham Akadémiai Kiadà 01-03-2008
AKADÉMIAI KIADÓ
Springer International Publishing
Subjects:
abiotic stress
Agriculture
antioxidant activity
antioxidant enzymes
Antioxidants
biomass production
biotic stress
Dehydration
Drechslera
Drought
Enzymes
fungi
Genotypes
Infections
Inoculation
Life Sciences
Pathogens
Physiology
Plant Breeding/Biotechnology
Plant Genetics and Genomics
Plant Physiology
Plants
roots
shoots
tan spot
Triticum aestivum L
water stress
Wheat
tan spot
antioxidant enzymes
L
drought
biotic stress
abiotic stress
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Summary:Treatment with various concentrations (0, 5, 15 and 20%) of PEG was used to simulate water stress, followed by inoculation with Drechslera tritici-repentis (DTR) at two different points of time (6 and 72 h after the PEG treatment) in two DTR resistant (M-3 and Mv Magvas) and two sensitive (Bezostaya 1 and Glenlea) wheat varieties. The reduction in biomass production due to the PEG treatments was more pronounced in the shoots than in the roots. While in the case of Bezostaya 1 5% PEG reduced the level of infection, 20% PEG treatment lowered the tolerance level of M-3. DTR infection may be more efficient in inducing antioxidative defence systems than water stress. However, there was no direct correlation between the activity of the individual antioxidant enzymes and the drought or DTR tolerance of wheat plants.
Bibliography:http://dx.doi.org/10.1556%2FCRC.36.2008.1.6
ISSN:0133-3720
1788-9170
DOI:10.1556/CRC.36.2008.1.6