ISHS Acta Horticulturae 179: V International Symposium on Growth Regulators in Fruit Production
PUTATIVE GROWTH REGULATOR RECEPTORS AND TISSUE SENSITIVITY |
| Authors: | R.J. Starling, T.F. Alwan, C.J. Howarth, A.R. Smith, M.A. Hall |
| Abstract:
Our current understanding of the primary action of plant growth regulators is briefly discussed. High-affinity ethylene binding to Phaseolus vulgaris cotyledons is reviewed, and compared to the much lower levels of ethylene binding to fruit tissues. Ethylene metabolism by developing tomato (cv. Alicante) fruits parallels both the rates of ethylene synthesis and respiration (CO2 production), with young fruits producing CO2 only, no metabolism during intermediate growth stages, and ripening fruits metabolising ethylene to tissue incorporated products. The possible roles of ethylene binding and metabolism in ethylene action are discussed. | |
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