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Free radical activity and loss of viability during drying of desiccation-sensitive tree seeds

  • W. E. Finch-Savage (a1), G. A. F. Hendry (a2) and N. M. Atherton (a3)

Synopsis

Viability loss during desiccation in the recalcitrant seeds of Castanea saliva, Aesculus hippocastanum and Quercus robur was accompanied by increased lipid peroxidation and build up of a stable free radical within their embryonic axes. We argue that the accumulation of the free radical marks the termination of a series of destructive events following the initiation of oxidative attack during moisture stress in recalcitrant seeds.

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Atherton, N. M., Hendry, G. A. F., Möbius, M. & Torring, J. T. 1993. A free radical ubiquitously associated with senescence in plants: evidence for a quinone. Free Radical Research Communications 19, 297301.
Hendry, G. A. F. 1993. Oxygen, free radical processes and seed longevity. Seed Science Research 3, 141–53.
Hendry, G. A. F., Finch-Savage, W. E., Thorpe, P. C., Atherton, N. M., Buckland, S. M., Nilsson, K. A. & Seel, W. E. 1992. Free radical processes and loss of seed viability during desiccation in the recalcitrant species Quercus robur L. New Phytologist 122, 273–9.
Leprince, O., Deltour, R., Thorpe, P. C., Atherton, N. M. & Hendry, G. A. F. 1990. The role of free radicals and radical processing systems in loss of desiccation tolerance in germinating maize (Zea mays L.). New Phytologist 116, 573–80.
Leprince, O., Hendry, G. A. F. & McKersie, B. D. 1993. The mechanisms of desiccation tolerance in developing seeds. Seed Science Research 3, 231–46.
Tompsett, P. B. & Pritchard, H. W. 1993. Water status changes during development in relation to the germination and desiccation tolerance of Aesculus hippocastanum L. seeds. Annals of Botany 71, 107–16.
Seel, W. E., Hendry, G. A. F., Atherton, N. M. & Lee, J. 1991. Radical formation and accumulation in vivo in desiccation tolerant and intolerant mosses. Free Radical Research Communications 15, 133–41.

Free radical activity and loss of viability during drying of desiccation-sensitive tree seeds

  • W. E. Finch-Savage (a1), G. A. F. Hendry (a2) and N. M. Atherton (a3)

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