Abstract
Exposing Pisum sativum seeds to 5°C at the beginning of imbibition markedly delayed germination and ethylene production. The presence of ethephon (ETH) improved tolerance to chilling injury, whereas L-α-(2-aminoethoxy vinyl) glycine hydrochloride (AVG) and, more evidently, 2,5-norbornadiene (NBD) tended to enhance chilling injury. Both these harmful effects were counteracted by adding ETH. On the other hand, cobalt, though slightly inhibiting ethylene synthesis, was effective in protecting against chilling injury. When testing other metals (silver, nickel, copper, lead, mercury, zinc and potassium), the greatest beneficial effect on germination and ethylene production was observed with zinc. Also, a reduced K+ efflux occurred in the presence of cobalt and zinc ions and, to a lesser level, of ETH and nickel. Thus, it seems likely that ethylene is partially required for prevention of chilling injury and the effects of Zn, Co and, to a small extent, of Ni salts may not relate to their anti—ethylene properties.
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© 1997 Springer Science+Business Media Dordrecht
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Petruzzelli, L., Harren, F. (1997). Alleviation of Chilling Injury by Ethephon in Pea Seeds. In: Ellis, R.H., Black, M., Murdoch, A.J., Hong, T.D. (eds) Basic and Applied Aspects of Seed Biology. Current Plant Science and Biotechnology in Agriculture, vol 30. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5716-2_63
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DOI: https://doi.org/10.1007/978-94-011-5716-2_63
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