High Temperature Induced Changes in Indian Mustard Anti-oxidative System
Heat stress and Mustard
(Sprache: Englisch)
Two tolerant genotypes (BPR-542-6 and NRCDR-02) and two susceptible genotypes (NPJ-119 and RGN-152) were screened at 45±0.5°C on the basis of time taken to 50% seedling mortality. Lipoxygenase, MDA and H2O2 which are indicators of cell membrane damage...
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Two tolerant genotypes (BPR-542-6 and NRCDR-02) and two susceptible genotypes (NPJ-119 and RGN-152) were screened at 45±0.5°C on the basis of time taken to 50% seedling mortality. Lipoxygenase, MDA and H2O2 which are indicators of cell membrane damage increased under heat stress in all the genotypes but increase was higher in susceptible genotypes. On recovery, LOX, MDA and H2O2 content decreased in all the genotypes. The activities of antioxidative enzymes viz. SOD, POX, CAT, APX and GR increased under high temperature stress. SOD and CAT started decreasing but activity of POX and GR still continued increasing in all the genotypes. But APX enzyme exhibited differential behaviour on revival i.e. increased in tolerant and decreased in susceptible genotypes. Ascorbic acid and carotenoids increased under heat stress but on revival, ascorbic acid increased while carotenoids decreased in all the genotypes. A major band of 53.12 kDa and minor bands of 100 kDa, 89.12, 74.13, 46.76 and 38.9 kDa in tolerant genotypes and protein bands of molecular weight 25.79 and 30.7 kDa in susceptible genotypes appeared under high temperature stress which disappeared when the stress was relieved.
Autoren-Porträt von Babita Rani, Kamal Dhawan, Pooja Dhansu
Rani, BabitaBabita Rani, currently, Senior Research Fellow, obtained M.Sc. and Ph.D. (Biochemistry) from CCS Haryana Agricultural University, Hisar. She has 10 years of working expertise on effects of abiotic stresses on crop plants. She has published 25 Research articles, and 4 Book chapters on physio-biochemical and molecular responses under abiotic stresses
Bibliographische Angaben
- Autoren: Babita Rani , Kamal Dhawan , Pooja Dhansu
- 112 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: Scholar's Press
- ISBN-10: 6138939514
- ISBN-13: 9786138939511
Sprache:
Englisch
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