Abstract
Pollination stimulates ethylene production in maize ears, and the application of ethephon during the pollination period can cause kernel abortion. The objective of this study was to determine if kernel abortion could be induced in vitro by the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC). Adding ACC to the culture medium resulted in the evolution of ethylene which caused abortion and reduced mature kernel mass. The effect of ethylene on kernel abortion and dry matter accumulation was partially negated by the addition of the ethylene-binding site inhibitor, 2,5-norbornadiene (NBD). The effect of ethylene on kernel abortion was greatest during the early stage of kernel development and was intensified by an increase in media sucrose concentration. These data suggest that ethylene could regulate kernel abortion in maize.
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Contribution of the Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108. Paper No. 17,088, Scientific Journal Series, Minnesota Agriculture Experimental Station.
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Hanft, J.M., Reed, A.J., Jones, R.J. et al. Effect of 1-aminocyclopropane-1-carboxylic acid on maize kernel development in vitro. J Plant Growth Regul 9, 89–94 (1990). https://doi.org/10.1007/BF02041947
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DOI: https://doi.org/10.1007/BF02041947