INDUCTION OF ANTIOXIDANT ENZYMES ASSOCIATED WITH BACTERIAL SPOT PATHOGENESIS IN TOMATO

作者: S. Chandrashekar

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摘要: Plant–pathogen interactions are mediated by a complex network of molecular and cytological events that determine range between susceptibility resistance. The production reactive oxygen species, via consumption so-called oxidative burst, is one the earliest cellular responses following successful pathogen recognition. present investigation was focused on role antioxidant enzymes in imparting resistance tomato against bacterial spot Xanthomonas axonopodis pv.vesicatoria. Ten different cultivars were collected from private seed agencies screened for to disease, using artificial inoculation technique under greenhouse conditions. Involvement pathogenesis studied resistant, susceptible highly cultivars. Eight-day-old seedlings root-dip spray inoculated with inoculum (1 x 10 cfu/ml) harvested at time intervals (0, 3, 6, 9, 12, 15, etc., up 72 h) assayed two enzymes. Temporal accumulation ascorbate peroxidase catalase showed maximum activity 12 21h after (hpi) resistant cultivar, whereas it increased 18 36h 42 54 h respectively. Furthermore, Isoforms analysis APX CAT indicated clear difference Resistant cultivar higher enzyme when compared uninoculated control also these discussed.

参考文章(33)
Sudhamoy Mandal, Adinpunya Mitra, Nirupama Mallick, Biochemical characterization of oxidative burst during interaction between Solanum lycopersicum and Fusarium oxysporum f. sp. lycopersici Physiological and Molecular Plant Pathology. ,vol. 72, pp. 56- 61 ,(2008) , 10.1016/J.PMPP.2008.04.002
Roland F. Beers, Irwin W. Sizer, A spectrophotometric method for measuring the breakdown of hydrogen peroxide by catalase. Journal of Biological Chemistry. ,vol. 195, pp. 133- 140 ,(1952) , 10.1016/S0021-9258(19)50881-X
David G Davis, Harley R Swanson, Activity of stress-related enzymes in the perennial weed leafy spurge (Euphorbia esula L.) Environmental and Experimental Botany. ,vol. 46, pp. 95- 108 ,(2001) , 10.1016/S0098-8472(01)00081-8
Ji-Qin Yang, Shijun Li, Frederick E. Domann, Garry R. Buettner, Larry W. Oberley, SUPEROXIDE GENERATION IN V-HA-RAS-TRANSDUCED HUMAN KERATINOCYTE HACAT CELLS Molecular Carcinogenesis. ,vol. 26, pp. 180- 188 ,(1999) , 10.1002/(SICI)1098-2744(199911)26:3<180::AID-MC7>3.0.CO;2-4
Ron Mittler, Sandy Vanderauwera, Martin Gollery, Frank Van Breusegem, Reactive oxygen gene network of plants Trends in Plant Science. ,vol. 9, pp. 490- 498 ,(2004) , 10.1016/J.TPLANTS.2004.08.009
Christopher J. Lamb, Michael A. Lawton, Michel Dron, Richard A. Dixon, Signals and transduction mechanisms for activation of plant defenses against microbial attack. Cell. ,vol. 56, pp. 215- 224 ,(1989) , 10.1016/0092-8674(89)90894-5
C. Gayoso, F. Pomar, F. Merino, M.A. Bernal, Oxidative metabolism and phenolic compounds in Capsicum annuum L. var. annuum infected by Phytophthora capsici Leon Scientia Horticulturae. ,vol. 102, pp. 1- 13 ,(2004) , 10.1016/J.SCIENTA.2003.11.015