Effect of cyanide pretreatment on peroxidase activity in germinating seeds of Guilfoylia monostylis
作者： Ani Nkang
DOI: 10.1016/S0176-1617(96)80164-7
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摘要: Summary In seeds of Guilfoylia monostylis (Benth) F. Muell (non-dormant, with recalcitrant viability characteristics) cyanide pretreatment stimulated the rate seed germination and caused a sharp increase in cotyledonary peroxidase activity during first 24 h; decreased rapidly thereafter. Activities pentose phosphate pathway dehydrogenases (Glucose-6-phosphate dehydrogenase 6-phosphogluconate dehydrogenase) catalase were unaffected by pretreatment. The enhanced peroxidative was dependent on concentration treatment duration. Activity also steeping assay temperatures, an optimum 20°C. kinetic parameters, Vmax Km, modified treatment. While greatly increased, Km values lower, suggesting increased affinity enzyme for substrate. Enzyme purification resulted loss differential, probably due to stimulatory ‹principle›. absence pseudoperoxidative reactions it is suggested that cyanide-enhanced release/activation some temperature sensitive extremely labile macro-molecular complex (enzymes) capable behaving like peroxidase.
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sci-hub.se 参考文章(18)
Daniel Côme, Françoise Corbineau, Some Aspects of Metabolic Regulation of Seed Germination and Dormancy Recent Advances in the Development and Germination of Seeds. ,vol. 187, pp. 165- 179 ,(1989) , 10.1007/978-1-4613-0617-7_13
Stephen W. Adkins, Graham M. Simpson, James M. Naylor, The physiological basis of seed dormancy in Avena fatua IV. Alternative respiration and nitrogenous compounds Physiologia Plantarum. ,vol. 60, pp. 234- 238 ,(1984) , 10.1111/J.1399-3054.1984.TB04570.X
Ani Nkang, Graeme Chandler, Changes during Embryogenesis in Rainforest Seeds with Orthodox and Recalcitrant Viability Characteristics Journal of Plant Physiology. ,vol. 126, pp. 243- 256 ,(1986) , 10.1016/S0176-1617(86)80026-8
Edwin H. Liu, Derek T. A. Lamport, An Accounting of Horseradish Peroxidase Isozymes Associated with the Cell Wall and Evidence that Peroxidase Does Not Contain Hydroxyproline Plant Physiology. ,vol. 54, pp. 870- 876 ,(1974) , 10.1104/PP.54.6.870
Yohji Esashi, Nobuyori Ishihara, Keiichi Saijoh, Motonobu Satoh, A bimodal germination response to temperature in cocklebur seeds. I. Cyanide‐sensitive and cyanide‐resistant respirations Plant Cell and Environment. ,vol. 6, pp. 47- 54 ,(1983) , 10.1111/1365-3040.EP11580530
S. B. Hendricks, R. B. Taylorson, Breaking of seed dormancy by catalase inhibition. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 72, pp. 306- 309 ,(1975) , 10.1073/PNAS.72.1.306
Renata Bogatek, Katarzyna Dziewanowska, Stanislaw Lewak, Hydrogen cyanide and embryonal dormancy in apple seeds Physiologia Plantarum. ,vol. 83, pp. 417- 421 ,(1991) , 10.1111/J.1399-3054.1991.TB00114.X
Ani Nkang, Graeme Chandler, Changes during Germination in Rainforest Seeds with Orthodox and Recalcitrant Viability Characteristics Journal of Plant Physiology. ,vol. 134, pp. 9- 16 ,(1989) , 10.1016/S0176-1617(89)80194-4
Renata Bogatek, Stanislaw Lewak, Cyanide controls enzymes involved in lipid and sugar catabolism in dormant apple embryos during culture Physiologia Plantarum. ,vol. 83, pp. 422- 426 ,(1991) , 10.1111/J.1399-3054.1991.TB00115.X
Zbigniew Rybka, Changes in the Cyanide-sensitive and Cyanide-resistant Oxygen Uptake in Crowns of Winter Wheat Seedlings during Hardening to Frost Journal of Plant Physiology. ,vol. 134, pp. 17- 19 ,(1989) , 10.1016/S0176-1617(89)80195-6