J Integr Plant Biol. ›› 1996, Vol. 38 ›› Issue (4): -.

• Research Articles •    

Relationship Between Fe2+-Induced Ethylene Production from Husk and Growth of Fe2+-Stimulated Rice Seedling

Peng Xin-xiang and Yamauchi M   

Abstract: Ferrous iron might induce ethylene production from rice (Oryza sativa L. ) husk. The induction was a non-enzymic chemical process, in which probably a non-gaseous precursor could be converted to ethylene by the action of Fe2+. Fe2+-stimulated seedling growth was probably mediated by the induced ethylene based on the following evidences: ( Ⅰ ) The induction and the stimulation were synchronous in time within one day only. Once seedling growth was initiated renewal of Fe2+ solution, even on the following day, exerted no more effect neither on ethylene production nor on seedling growth; ( Ⅱ ) Ferrous iron was neither capable to stimulate the ethylene production of rice caryopsis, nor able to stimulate the seedling growth of germinated caryopsis.

Key words: Ferrous iron: Rice husk, Ethylene, Coleoptile, Rice

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